6. The need for affordable housing in Nigeria

poor who cannot afford the exorbitant rent within the cities. The result is a huge crisis of untreated sewage, which carelessly drains into the open environment and leaves behind either decomposed or dried-up elements causing eventual water and environmental pollution as it

As evident from above, urbanization in the country results in poor health condition of many urban dwellers. This is a resultant effect of mainly slums and indecent settlements that are usually precipitated by urbanization. Urbanization also brings about environmental degradation. This is any change or disturbance that is harmful to the environment [12]. It is the destruction of the natural habitat or ecosystem through the depletion of natural resources such as air, water and soil. In comparison, Mason, states that urbanization "can, and in some cases does, contribute effectively to overall national economic growth and development". Examples are China and Korea where urbanization is accompanied by income growth [13]. The UNFPA asserts that "no country in the industrial age has ever achieved significant economic growth without urbanization" [13]. It further argues that the urban centres have the capabilities of finding solutions to the challenges they face, claiming that "the potential benefits of urbanization far outweigh the disadvantages: The challenge is in learning how to exploit its possibilities" [14]. Thereby establishing a fact that urbanization in itself is not really bad, and if properly managed,

it will result in socio-economic and environmental development of the nation.

Problems of urbanization can simply be solved, among others, as follows:

steps will also include effective planning of development activities.

creating decent living and working environments.

in reducing the rate of crime in the urban areas.

1. Provision of sustainable affordable housing i.e. housing that is affordable in a sustainable way, with effective waste management for ensuring environmentally friendly cities. Such

2. Provision of essential infrastructural facilities and services for the urban residents such as potable water, constant electricity, access to education and public health services, good transportation and communication network and technology for the urban residents will make life in the urban centres easy for the inhabitants. Investing substantially in infrastructural facilities can help to eliminate urban slum and squatter settlements thereby

3. Provision of job opportunities, both skilled and unskilled labour, for the urban residents will boost their standard of living, self-reliance and subsequent self -dignity. This can help

4. Embarking on an effective land policy will go a long way in reducing slum and squatter settlements. For instance, effective land use plan, zoning regulation and a reduction in land cost will promote easy accessibility to land by the low income urban dwellers.

Out of all the negative impacts of urbanization, lack of adequate housing, which has resulted in discriminate development of slums and squatter settlements affects one of the three fundamental

drains into the nearby streams, rivers and oceans.

80 Housing

5. Solving problems of urbanization

Housing, also referred to as shelter, is one of the three fundamental human rights, and it forms an essential part of human settlement with great impact on the health, welfare, productivity and quality of life of man [15, 16]. Coker et al. citing Fanning (1967), Macpherson (1979) and Riaz (1987) stated that "researchers have shown that housing can affect mental and physical health, both positively and negatively [17]; hence its provision for the people should be one of the primary concerns of every nation. The provision of adequate affordable housing for Nigerians will initiate a notable growth as it will provide shelter for the people and also, bring about lots of infrastructural development, thereby meeting some of the social needs of the populace. It will also generate an increase in the activities of the housing and building industry, thereby creating more job opportunities for both skilled and unskilled labour through the construction industry, resulting in increased productivity and a subsequent rise in the country's GDP; thus improving its economic development. A well planned housing system will also promote environmental sustainability because the provision of adequate housing will go hand in hand with the provision of improved indoor air quality, potable water, good sanitary, sewage and waste management, improved and sustainable transportation network and consequent reduction in environmental pollution. This achievement would, overall, be a driver for the nation towards development in a sustainable way; indicating that housing has significant effects on all the three domains of sustainable development.

To a nation such as Nigeria, housing is a very important and critical component in its social and economic framework [18] because it accommodates the smallest unit of its society, referred to as the family. Hence, housing is an indicator of a family's standard of living or societal class [19]. Consequently, housing also signifies the living standards of a society [20]. However, the difference between the demand for housing and its supply in Nigeria and most developing countries is overly incongruent. With the high cost of building materials as a result of the cost of production and importation as adduced by Fasakin and Ogunseni [21], it may still be a very challenging situation for the government to solve the affordable housing problems, except something is done to cut down on cost [22, 23].

Evidently, there is an increasing rise in the housing deficit which now stands between, 17 and 20 million housing units at a growth rate of 900,000 units per annum, due to the fast population growth and urbanization which will require at least 1000,000 housing units and approximately US\$363 billion to curtail [24]. The Nigerian population is at 195,875,237 of which the urban population is 48.9% [5]. Over 90% of the country's population are of the no/low-income groups [25]. The present Gross Domestic Product (GDP) equals US\$405.10 billion presently nonetheless; the Per Capita Income is very low at US\$2457.80 as lastly recorded in 2016 [26] which indicates clearly the fact that there is an unequal distribution of wealth as people's income is not commensurate with the economic growth.

assist any member to build his/her house on appointed days and the builder provides sumptuous meals for all in return [40]. This is alternated between all members, thereby enabling

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The evolution of housing policies dates as far back as 1928 by the government of Lagos Colony during the Bubonic Plague that lasted till 1929 [32] when the Lagos State Development Board (LEDB) was established. This era is tagged the Colonial Period between 1928 and 1960. It was basically for addressing the problem of housing at a national scale [37] and was targeted on the provision of quarters for expatriates and some selected indigenous civil servants [41] such as: the Armed Forces, Police, Marine and Railway workers in Lagos and other regional headquarters like Enugu, Ibadan and Kaduna. This approach to African Urban Housing by the Colonial Masters aimed at redeveloping 'decaying core areas', renewal of slums or squatter settlements and the construction of rental public housing estates. The Nigeria Building Society (NBS), which is similar to a mortgage institute with the intention of giving both workers in public and private sectors opportunities to have their own houses, was founded after the World War II. Nigeria was divided into three regions within this era and all the regions established housing corporations in 1964 respectively with a vision of developing housing estates. These are meant to provide mortgage for people so they can build their own houses and pay back over a long duration of time. However, only the capital cities of these regions were impacted by this programme. An example is Bodija Estate developed by the defunct Western Regional government [42]. The Federal Government made a direct effort on the housing sector by establishing the National Council on Housing in 1971. The NBS was renamed by the Federal Government to Federal Mortgage Bank of Nigeria (FMBN) in 1973. This was when it took over its ownership through the indigenous Act with the aim to expand mortgage lending services to all segments of the population. It started with a capital base of 20 million Naira and this was increased in 1979 to one 150 million Naira. FMBN functions as a secondary mortgage market and hence, primary mortgage market was made opened to the private sector giving rise to another problem of how to fund the Primary Mortgage Institutions (PMI). Consequently, every Nigerian earning up to 3000 Naira per month were mandated to contribute 2.5% of monthly salary to the National housing Fund (NHF), [43] with the benefit of borrowing money from the fund through the PMIs after 6 months for the purpose of housing. This also not productive as majority of the

workers could neither access the fund to get loans nor recover their saved money.

Before the colonial period in Nigeria (1928–1960), most communities engaged in a communal system of housing delivery. This is a situation whereby peer groups turn out collectively to assist any member to build his/her house on appointed days and the builder provides sumptuous meals for all in return [40]. This is alternated between all members, enabling housing

The evolution of housing policies dates back as far as 1928 by the government of Lagos Colony during the Bubonic Plague that lasted till 1929 [32] when the Lagos State Development Board (LEDB) was established. This era is tagged the Colonial Period between 1928 and 1960. It was basically for addressing the problem of housing at a national scale [37] and was targeted on the provision of quarters for expatriates and some selected indigenous civil servants [41] such as: the Armed Forces, Police, Marine and Railway workers in Lagos and other regional

housing delivery.

delivery.

The current cost of renting a standard 3-bedroom apartment is US\$5000 per annum and the average purchase price of US\$100,000 [24]. This simply implies, taking into account the present US\$2457.80 Per Capita Income in Nigeria, that housing is not affordable as affordable housing should cost 30% or less of a household's income [27]. This has left the population struggling with poverty, inequality and indecent form of housing that is not sustainable. The fast rate in population growth and urbanization infer an exponential rate of housing deficit, with 61.7% of the urban population being slum dwellers [24].

### 6.1. Factors influencing the limited supply of housing in Nigeria

The reasons for the high demand for housing and its limited supply in Nigeria can be traced to the following factors namely: (1) high cost and lack of easy access to land [28, 29]; (2) high cost of building materials [30]; (3) high cost and long processing duration of property registration [28]; (4) inability of earlier policies and programmes to adequately resolve the backlog of housing problems [30–32]; (5) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; (6) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; (7) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; low capacity of public housing agencies [32]; (8) poor government administration, inadequate funding, insufficient infrastructural amenities, as well as inadequate housing finance [33].

Consequently, the need for an urgent solution of adequate and affordable housing supply to the population is imperative, if the problem of shortage of housing it to be solved. Further review of pertinent literature reveals that there had been several attempts made by both the Public and Private Sectors of the country to address the fast increasing housing demands, which have recorded very minimal success [29, 32, 34–38]. There have been, and currently are, government strategies and efforts in form of housing policies and programmes to address the aforementioned problems/challenges. Nonetheless, these have also attained very little success. Housing policy is the act put up by a government for the purpose of managing and controlling homelessness and improving the quality of the housing stock of dwellings within its domain [39]. It could also mean government intervention in the housing provision with respect to the regulation of housing finance markets to influence activity in the national economy or restrictions on the amount paid in subsidy to low income households to encourage available incentives to work. The Housing Policies in Nigeria have evolved from the precolonial era to date.

#### 6.2. An overview of housing policy in Nigeria

Before the colonial period in Nigeria (1928–1960), most communities engaged in a communal system of housing delivery. This is a situation whereby peer groups turn out collectively to assist any member to build his/her house on appointed days and the builder provides sumptuous meals for all in return [40]. This is alternated between all members, thereby enabling housing delivery.

no/low-income groups [25]. The present Gross Domestic Product (GDP) equals US\$405.10 billion presently nonetheless; the Per Capita Income is very low at US\$2457.80 as lastly recorded in 2016 [26] which indicates clearly the fact that there is an unequal distribution of

The current cost of renting a standard 3-bedroom apartment is US\$5000 per annum and the average purchase price of US\$100,000 [24]. This simply implies, taking into account the present US\$2457.80 Per Capita Income in Nigeria, that housing is not affordable as affordable housing should cost 30% or less of a household's income [27]. This has left the population struggling with poverty, inequality and indecent form of housing that is not sustainable. The fast rate in population growth and urbanization infer an exponential rate of housing deficit, with 61.7% of

The reasons for the high demand for housing and its limited supply in Nigeria can be traced to the following factors namely: (1) high cost and lack of easy access to land [28, 29]; (2) high cost of building materials [30]; (3) high cost and long processing duration of property registration [28]; (4) inability of earlier policies and programmes to adequately resolve the backlog of housing problems [30–32]; (5) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; (6) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; (7) Absence of proper monitoring and evaluation of public housing policies and programs [31, 32]; low capacity of public housing agencies [32]; (8) poor government administration, inadequate funding, insufficient infrastructural ameni-

Consequently, the need for an urgent solution of adequate and affordable housing supply to the population is imperative, if the problem of shortage of housing it to be solved. Further review of pertinent literature reveals that there had been several attempts made by both the Public and Private Sectors of the country to address the fast increasing housing demands, which have recorded very minimal success [29, 32, 34–38]. There have been, and currently are, government strategies and efforts in form of housing policies and programmes to address the aforementioned problems/challenges. Nonetheless, these have also attained very little success. Housing policy is the act put up by a government for the purpose of managing and controlling homelessness and improving the quality of the housing stock of dwellings within its domain [39]. It could also mean government intervention in the housing provision with respect to the regulation of housing finance markets to influence activity in the national economy or restrictions on the amount paid in subsidy to low income households to encourage available incentives to work. The Housing Policies in Nigeria have evolved from the pre-

Before the colonial period in Nigeria (1928–1960), most communities engaged in a communal system of housing delivery. This is a situation whereby peer groups turn out collectively to

wealth as people's income is not commensurate with the economic growth.

the urban population being slum dwellers [24].

82 Housing

ties, as well as inadequate housing finance [33].

6.2. An overview of housing policy in Nigeria

colonial era to date.

6.1. Factors influencing the limited supply of housing in Nigeria

The evolution of housing policies dates as far back as 1928 by the government of Lagos Colony during the Bubonic Plague that lasted till 1929 [32] when the Lagos State Development Board (LEDB) was established. This era is tagged the Colonial Period between 1928 and 1960. It was basically for addressing the problem of housing at a national scale [37] and was targeted on the provision of quarters for expatriates and some selected indigenous civil servants [41] such as: the Armed Forces, Police, Marine and Railway workers in Lagos and other regional headquarters like Enugu, Ibadan and Kaduna. This approach to African Urban Housing by the Colonial Masters aimed at redeveloping 'decaying core areas', renewal of slums or squatter settlements and the construction of rental public housing estates. The Nigeria Building Society (NBS), which is similar to a mortgage institute with the intention of giving both workers in public and private sectors opportunities to have their own houses, was founded after the World War II.

Nigeria was divided into three regions within this era and all the regions established housing corporations in 1964 respectively with a vision of developing housing estates. These are meant to provide mortgage for people so they can build their own houses and pay back over a long duration of time. However, only the capital cities of these regions were impacted by this programme. An example is Bodija Estate developed by the defunct Western Regional government [42]. The Federal Government made a direct effort on the housing sector by establishing the National Council on Housing in 1971. The NBS was renamed by the Federal Government to Federal Mortgage Bank of Nigeria (FMBN) in 1973. This was when it took over its ownership through the indigenous Act with the aim to expand mortgage lending services to all segments of the population. It started with a capital base of 20 million Naira and this was increased in 1979 to one 150 million Naira. FMBN functions as a secondary mortgage market and hence, primary mortgage market was made opened to the private sector giving rise to another problem of how to fund the Primary Mortgage Institutions (PMI). Consequently, every Nigerian earning up to 3000 Naira per month were mandated to contribute 2.5% of monthly salary to the National housing Fund (NHF), [43] with the benefit of borrowing money from the fund through the PMIs after 6 months for the purpose of housing. This also not productive as majority of the workers could neither access the fund to get loans nor recover their saved money.

Before the colonial period in Nigeria (1928–1960), most communities engaged in a communal system of housing delivery. This is a situation whereby peer groups turn out collectively to assist any member to build his/her house on appointed days and the builder provides sumptuous meals for all in return [40]. This is alternated between all members, enabling housing delivery.

The evolution of housing policies dates back as far as 1928 by the government of Lagos Colony during the Bubonic Plague that lasted till 1929 [32] when the Lagos State Development Board (LEDB) was established. This era is tagged the Colonial Period between 1928 and 1960. It was basically for addressing the problem of housing at a national scale [37] and was targeted on the provision of quarters for expatriates and some selected indigenous civil servants [41] such as: the Armed Forces, Police, Marine and Railway workers in Lagos and other regional headquarters like Enugu, Ibadan and Kaduna. This approach to African Urban Housing by the Colonial Masters aimed at redeveloping 'decaying core areas', renewal of slums or squatter settlements and the construction of rental public housing estates. The Nigeria Building Society (NBS), which is similar to a mortgage institute with the intention of giving both workers in public and private sectors opportunities to have their own houses, was founded after the World War II.

The military government established a different housing policy tagged "Housing for all by the year 2000". This was meant to provide decent and affordable housing for all before the end of the year 2000. It estimated 700,000 housing units per year with 60% built in urban areas by providing housing loans to individuals and corporate bodies through the FMBN and other mortgage institutions which collect, manage and administer contributions to the National Housing Fund (NHF). This era marked a huge success in the provision of housing for the population. Although the housing provided cannot be termed affordable as the housing cost

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As development increases in the urban centres, the rate of urbanization also increases; meaning more people moving in from the rural areas in search of better lives. Subsequently, there is more deficit in housing as the available housing supply could not meet its demands. In 1991, the National Housing Policy was promulgated in order to propose possible solutions to housing problems. A pool of funds was established for this purpose called the NHF in 1992. The NHF was based on realistic standards affordable to the owners to encourage every household to own its own house; through the provision of more credit and fund. Thus, giving priority to housing programmes intended for the low income group [36]. The number of housing units to be delivered by NHF in 1994 was 121,000 but only 5% were achieved. This implies that the NHF was ineffective as it could not meet its target and the success rate was too low. Meanwhile the movement of people from the rural to the urban cities kept increasing,

Between 2000 and 2004 the Federal Government established the Federal Ministry of Housing and Urban Development. During this period, the federal government only concerned itself with the provision of basic infrastructures leaving the provision of affordable housing delivery to the private sector [32] which seems to be the main solution to shortage of housing in the country [45] as most of the government efforts have failed. In 2004, the Federal Government declared its willingness to adequately fund researches that have to do with the use of local materials in the housing sector with a target of 40,000 housing units of at least 1000 houses per state before the year 2007 [32, 46] with the assistance of the Nigeria Building and Road Research Institute, NBRRI. Another version of the National Housing Policy, NHP 2012 was adopted with an improvement on the NHP 1999. The main purpose of the NHP 2012 is to ensure not just the provision of housing units but also ushers in the need for affordability in housing by the year 2020 [25]. The generally acceptable definition of Affordable Housing is 'housing which cost no more than 30% of the income at each income level' [27, 47, 48]. It is the capability of households to meet their housing needs and at the same time maintaining the capability of meeting other basic costs of living. Aribigbola 2011 citing MacLennan and Williams 1990 defined housing affordability as the ability to assure some "given or different standards of housing at a price or rent which does not impose an unreasonable burden on household incomes, assessed by the ratio of a chosen definition of household costs to a selected measure of household income in a given period" [48] and usually defined by the income of the population served [49]. Approximately 50% or more of household income spent on housing is described as "severe burdens" [47]. Another good thing that comes with housing provision is the infrastructural development. Such as: good transport communication network, potable water, planned waste management systems, job opportunities especially within the construction and property sector. With all these in place,

good health, reduced pollution and environmental degradation will also be achieved.

thereby aggravating the problems that come with urbanization.

more than 30% of their income.

Nigeria was divided into three regions in within this era and all the regions established housing corporations in 1964 respectively with a vision of developing housing estates. These are meant to provide mortgage for people so they can build their own houses and pay back over a long duration of time. However, only the capital cities of these regions were impacted by this programme. An example is Bodija Estate developed by the defunct Western Regional government [42]. The Federal Government made a direct effort on the housing sector by establishing the National Council on Housing in 1971. The NBS was renamed by the Federal Government to Federal Mortgage Bank of Nigeria (FMBN) in 1973. This was when it took over its ownership through the indigenous Act with the aim to expand mortgage lending services to all segments of the population. It started with a capital base of 20 million Naira and this was increased in 1979 to one 150 million Naira. FMBN functions as a secondary mortgage market and hence, primary mortgage market was made opened to the private sector giving rise to another problem of how to fund the Primary Mortgage Institutions (PMI). Consequently, every Nigerian earning up to 3000 Naira per month were mandated to contribute 2.5% of monthly salary to the National housing Fund (NHF), [43] with the benefit of borrowing money from the fund through the PMIs after 6 months for the purpose of housing. This also not productive as majority of the workers could neither access the fund to get loans nor recover their saved money.

The Federal Housing Authority was inaugurated in 1973 through the promulgation of Decree No. 40 of 1973 and begins formal operation in 1976. Its main objectives were: (1) to make proposals to the Federal Government on Housing and ancillary infrastructural services; and (2) to implement those approved by the government. During this period, the first low cost housing estate, Festac Town was developed in preparation for the first all African Festival of Arts and Culture (FESTAC) slated for 1977. Another government housing scheme was the Ipaja Town followed by the Amuwo Odofin Phase 1 estate and more low cost housing estates in 11 state capitals. This era marked the first major Federal Government effort in providing affordable housing to the citizens on long term mortgage repayment arrangement. The FMBN had plans to deliver 202,000 housing units but because it was solely dependent on government, it could not pass the test of time; out of the 202,000 houses planned to be provided, only 28,500 units were realized which amount to just 14.1% [32]. The National Housing Programme was later instituted to provide 350 medium and high income housing units by the FHA during the 1981–1985 post colonial era. This is in addition to the national low income housing programme known as Shagari Low Cost Housing in each of the then 19 states of the federation [44]. In addition, the NHP targeted 200,000 units of which just 47,500 (23.75%) units were constructed [45]. Afterwards, a period known as "A Period of Consolidation" between 1986 and 1993 was ushered in. Emphasis was shifted from founding more new housing schemes to the completion of the many suspended and abandoned housing projects that resulted from the past unsuccessful housing schemes [43].

The military government established a different housing policy tagged "Housing for all by the year 2000". This was meant to provide decent and affordable housing for all before the end of the year 2000. It estimated 700,000 housing units per year with 60% built in urban areas by providing housing loans to individuals and corporate bodies through the FMBN and other mortgage institutions which collect, manage and administer contributions to the National Housing Fund (NHF). This era marked a huge success in the provision of housing for the population. Although the housing provided cannot be termed affordable as the housing cost more than 30% of their income.

headquarters like Enugu, Ibadan and Kaduna. This approach to African Urban Housing by the Colonial Masters aimed at redeveloping 'decaying core areas', renewal of slums or squatter settlements and the construction of rental public housing estates. The Nigeria Building Society (NBS), which is similar to a mortgage institute with the intention of giving both workers in public and private sectors opportunities to have their own houses, was founded after the

Nigeria was divided into three regions in within this era and all the regions established housing corporations in 1964 respectively with a vision of developing housing estates. These are meant to provide mortgage for people so they can build their own houses and pay back over a long duration of time. However, only the capital cities of these regions were impacted by this programme. An example is Bodija Estate developed by the defunct Western Regional government [42]. The Federal Government made a direct effort on the housing sector by establishing the National Council on Housing in 1971. The NBS was renamed by the Federal Government to Federal Mortgage Bank of Nigeria (FMBN) in 1973. This was when it took over its ownership through the indigenous Act with the aim to expand mortgage lending services to all segments of the population. It started with a capital base of 20 million Naira and this was increased in 1979 to one 150 million Naira. FMBN functions as a secondary mortgage market and hence, primary mortgage market was made opened to the private sector giving rise to another problem of how to fund the Primary Mortgage Institutions (PMI). Consequently, every Nigerian earning up to 3000 Naira per month were mandated to contribute 2.5% of monthly salary to the National housing Fund (NHF), [43] with the benefit of borrowing money from the fund through the PMIs after 6 months for the purpose of housing. This also not productive as majority of the workers could neither access the fund

The Federal Housing Authority was inaugurated in 1973 through the promulgation of Decree No. 40 of 1973 and begins formal operation in 1976. Its main objectives were: (1) to make proposals to the Federal Government on Housing and ancillary infrastructural services; and (2) to implement those approved by the government. During this period, the first low cost housing estate, Festac Town was developed in preparation for the first all African Festival of Arts and Culture (FESTAC) slated for 1977. Another government housing scheme was the Ipaja Town followed by the Amuwo Odofin Phase 1 estate and more low cost housing estates in 11 state capitals. This era marked the first major Federal Government effort in providing affordable housing to the citizens on long term mortgage repayment arrangement. The FMBN had plans to deliver 202,000 housing units but because it was solely dependent on government, it could not pass the test of time; out of the 202,000 houses planned to be provided, only 28,500 units were realized which amount to just 14.1% [32]. The National Housing Programme was later instituted to provide 350 medium and high income housing units by the FHA during the 1981–1985 post colonial era. This is in addition to the national low income housing programme known as Shagari Low Cost Housing in each of the then 19 states of the federation [44]. In addition, the NHP targeted 200,000 units of which just 47,500 (23.75%) units were constructed [45]. Afterwards, a period known as "A Period of Consolidation" between 1986 and 1993 was ushered in. Emphasis was shifted from founding more new housing schemes to the completion of the many suspended and abandoned housing projects that resulted from the

World War II.

84 Housing

to get loans nor recover their saved money.

past unsuccessful housing schemes [43].

As development increases in the urban centres, the rate of urbanization also increases; meaning more people moving in from the rural areas in search of better lives. Subsequently, there is more deficit in housing as the available housing supply could not meet its demands. In 1991, the National Housing Policy was promulgated in order to propose possible solutions to housing problems. A pool of funds was established for this purpose called the NHF in 1992. The NHF was based on realistic standards affordable to the owners to encourage every household to own its own house; through the provision of more credit and fund. Thus, giving priority to housing programmes intended for the low income group [36]. The number of housing units to be delivered by NHF in 1994 was 121,000 but only 5% were achieved. This implies that the NHF was ineffective as it could not meet its target and the success rate was too low. Meanwhile the movement of people from the rural to the urban cities kept increasing, thereby aggravating the problems that come with urbanization.

Between 2000 and 2004 the Federal Government established the Federal Ministry of Housing and Urban Development. During this period, the federal government only concerned itself with the provision of basic infrastructures leaving the provision of affordable housing delivery to the private sector [32] which seems to be the main solution to shortage of housing in the country [45] as most of the government efforts have failed. In 2004, the Federal Government declared its willingness to adequately fund researches that have to do with the use of local materials in the housing sector with a target of 40,000 housing units of at least 1000 houses per state before the year 2007 [32, 46] with the assistance of the Nigeria Building and Road Research Institute, NBRRI. Another version of the National Housing Policy, NHP 2012 was adopted with an improvement on the NHP 1999. The main purpose of the NHP 2012 is to ensure not just the provision of housing units but also ushers in the need for affordability in housing by the year 2020 [25]. The generally acceptable definition of Affordable Housing is 'housing which cost no more than 30% of the income at each income level' [27, 47, 48]. It is the capability of households to meet their housing needs and at the same time maintaining the capability of meeting other basic costs of living. Aribigbola 2011 citing MacLennan and Williams 1990 defined housing affordability as the ability to assure some "given or different standards of housing at a price or rent which does not impose an unreasonable burden on household incomes, assessed by the ratio of a chosen definition of household costs to a selected measure of household income in a given period" [48] and usually defined by the income of the population served [49]. Approximately 50% or more of household income spent on housing is described as "severe burdens" [47]. Another good thing that comes with housing provision is the infrastructural development. Such as: good transport communication network, potable water, planned waste management systems, job opportunities especially within the construction and property sector. With all these in place, good health, reduced pollution and environmental degradation will also be achieved.


and all stakeholders must see the provision of affordable housing as a very critical and crucial

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Nigeria, like other developing countries, is faced with increased rate of urbanization, with different urban centres emerging as a result. There are both positive and negative impacts of urbanization on the nation. Apparently, the negative ones outweigh those that are positive, and the former affect the urban populace than the positive variables. Nonetheless, most of them are hinged on the housing deficit which keeps increasing because it is not affordable to majority of the population. Hence, it has been identified that is pertinent to ensure the availability of affordable housing by giving a better commitment and attention to the delivery of housing facilities that are affordable and accessible to Nigerians, especially those within the no-income, low-income and lower medium-income groups. It has also been established that infrastructural development accompanies housing delivery; signifying the resolution of most of the negative impacts of urbanization. The authors believe that Nigeria does not need any new policy because the NHP 2012 is a brilliant instrument, with potentials for achieving success in housing delivery. We agree that the proposed outcomes of this policy are achievable, if effectively and fairly implemented by the successive governments of Nigeria. The chapter proposed that achieving affordable housing will raise home ownership to about 50%, improve the country's Human Development Index (HDI) Ranking and contribute over 20% to its GDP. It will also expand the construction sector and the mortgage market. Furthermore, poverty will be significantly reduced in households; and at the same time as well as increase the productivity and quality of lives of the citizenry. Consequently, there will be a remarkable impact on the society and communities as it stimulates economic growth and job creation. The benefits of urbanization can then be enjoyed, not only by the urban rich but the poor as well. Hence, the NHP 2012 should be critically explored towards the delivery of affordable housing, as it will

certainly and subsequently go a long way in solving urbanization issues in Nigeria.

\*, Akanbi Oyebanji<sup>2</sup> and Michael Gerges<sup>1</sup>

subject of concern and make it their utmost priority.

7. Conclusion

Conflict of interest

Author details

Temi Oni-Jimoh<sup>1</sup>

There is no conflict of interest concerning this chapter.

, Champika Liyanage<sup>1</sup>

\*Address all correspondence to: clliyanage@uclan.ac.uk

2 Yaba College of Technology Lagos, Nigeria

1 School of Engineering, University of Central Lancashire, UK

Table 2. An overview of the take home of the no-income, low-income and medium low-income groups in Nigeria (source: adapted from NHP 2012 [25]).

Table 2 shows the take home of the no-income, low-income and medium low-income groups in Nigeria. It also illustrates the level of poverty and the severe burdens most households are subjected to in order to meet with its housing needs as well as the reason why there would be a continuous increase in the development of slums and unlawful settlements within the urban areas of the country if nothing is done to improve the delivery of housing. Thus, it is clear that these three income groups are under a 'severe burden' and incapable of meeting their housing needs as the cost of renting a 3-bedroom apartment in ranges from US\$5000 per annum and the average purchase price of US\$100,000 [24]. This has resulted in about 68 million i.e. about 36% of the population remaining homeless [50] or living in houses that are not affordable.

However, this policy, so far like the others, has been rendered ineffective. This is because of the persistent increase in the cost of building materials, stringent loan conditions from mortgage banks, deficiency of proper housing finance arrangement, high cost and lack of easy access to land, high cost and long processing duration of property registration amidst other problems [51]. All these imply that the policy has not been properly implemented, and until something is done to ensure the implementation of these policies, as brilliant as they might be, Nigeria will not be able to enjoy the positive impacts of urbanization.

Furthermore in 2014, the Federal Government inaugurated an independent company, Nigeria Mortgage Refinance Company (NMRC), with the intent of finally increasing the opportunities for Nigerians to 'own homes at affordable prices' through mass housing [52]. Mass housing is housing that is funded publicly and given out to low-income families. This is the latest programme of the Federal Government on housing towards the provision of affordable housing for the Nigerian population. There is a rapid emergence of housing development by the NMRC but majority are neither affordable nor accessible to the no-income/low-income/lowermedium families because of their exorbitant prices. Nonetheless, the urban rich, who could afford more than needed for their families purchase many of these housing units and in turn sublet them to the lower income group at high cost and those who cannot afford the rent have no other option but to go to the slums or remain homeless. This takes us back to the cycle of the negative impacts of urbanization within the country. It is evidently clear that it would end up like the others if nothing is done to ensure fairness in its implementation. For urbanization to deliver a socio-economic and environmental development in Nigeria, then the government and all stakeholders must see the provision of affordable housing as a very critical and crucial subject of concern and make it their utmost priority.
