Kilimani, Kileleshwa, Lavington, Westlands and Parklands illustrate one of Nairobi’s most significant urban transformations. Neighbourhoods historically characterised by detached houses, bungalows, maisonettes, spacious compounds and mature trees are increasingly defined by apartment towers, mixed-use developments and more intensive land use.
This transformation reflects a combination of population growth, changing housing demand, rising land values, investment incentives and evolving planning decisions. It has created opportunities for landowners, developers, homebuyers and property investors. However, it has also raised a fundamental question: has the infrastructure supporting these neighbourhoods expanded at the same pace as the buildings?
At Stable Merchants, we believe this question is central to the future of Nairobi’s property market. Densification can make better use of scarce urban land, but its long-term success depends on whether the surrounding infrastructure, public services and neighbourhood environment can accommodate the additional population.
How Nairobi’s leafy suburbs evolved
The history of these neighbourhoods is important to understanding their present form. Kileleshwa and parts of the western suburbs developed as low-density residential areas, with relatively large plots, detached houses, gardens and substantial open space. Academic research documents how colonial-era planning shaped the spatial organisation of these neighbourhoods, including unequal access to land and residential space.
Following independence, Nairobi’s population and economy continued to expand. Demand for housing, commercial premises and access to established urban amenities increased. By the 1990s and particularly during the 2000s, the redevelopment of some established residential areas became increasingly visible.
Research on Kilimani identifies changes in development controls and zoning, including a significant policy shift in 1987, as important factors enabling higher-density development. Subsequent research describes the replacement of bungalows and maisonettes with apartments and mixed-use buildings.
Research published in 2024 similarly documents the transformation of Kileleshwa, linking redevelopment to rising land values, demand from a growing middle class and changing patterns of property investment. The result is a neighbourhood model increasingly shaped by vertical construction rather than horizontal expansion.
Why developers are replacing houses with apartment towers
A. Rising land values and redevelopment economics
Land in established urban neighbourhoods commands value because of its location, accessibility and proximity to employment, schools, healthcare, shopping and other amenities. A large plot occupied by one household may accommodate several dozen apartments if planning permissions, plot characteristics and infrastructure capacity allow. This can substantially increase the potential revenue generated from the site.
For a landowner, selling to a developer or entering a joint venture may therefore offer a more attractive financial outcome than retaining a detached home. For developers, the objective is to balance land acquisition costs, construction expenses, financing, approval requirements and the revenue expected from selling or renting the completed units. This is one of the strongest economic drivers of redevelopment.
B. Population growth and changing household needs
Nairobi requires housing for a growing and economically diverse population. Not every household can afford a detached house on a large plot, particularly in established neighbourhoods close to major employment centres. Apartments offer a wider range of unit sizes and price points, potentially allowing more households to access well-located areas.
The expansion of the middle class and the availability of sectional ownership have also broadened participation in apartment ownership. Instead of acquiring an entire plot and house, buyers can purchase individual units within a development, subject to the applicable legal and ownership arrangements. The growth of rental housing has further strengthened demand for multi-unit buildings.
C. Location advantages
Kilimani, Kileleshwa, Westlands, Lavington and Parklands benefit from their connections to commercial districts, educational institutions, healthcare facilities, retail centres and other established amenities. These location advantages support both residential demand and investment interest. Developers are not merely selling floor space; they are selling access to the economic and social opportunities associated with central urban locations.
D. Planning decisions and development permissions
Market demand alone does not determine how tall a building can be. Planning rules, permitted land use, plot ratios, building heights, setbacks, coverage requirements and other controls shape what can be developed. Changes in development permissions have enabled greater density in some neighbourhoods.
However, the applicable rules and approval status must be established for each site. Permission granted for one plot should not be assumed to apply to another. The broader policy challenge is to ensure that permitted development intensity is compatible with the infrastructure and public services available.
The infrastructure gap: The cost of growth without coordination
The most important distinction is between increasing the number of buildings and increasing the capacity of the neighbourhood. A road, sewer line or water network designed to serve relatively few households may face substantially greater demand when surrounding plots are redeveloped. The effect is cumulative. Even where each project meets its individual requirements, the combined demand from many projects can exceed the capacity of the wider network.
Research on Kilimani has identified strain on roads, water supply and sewerage following densification. Research on Kileleshwa has also examined the environmental and physical consequences of rapid high-density development. The following issues deserve particular attention:
A. Roads and Transport
More households can generate additional vehicle trips, deliveries, ride-hailing pickups and parking demand. Congestion may become especially severe at junctions, on narrow estate roads and where access to major roads is limited. The problem cannot always be solved by widening one road. Effective planning may require better junctions, pedestrian infrastructure, public transport access, traffic management and appropriate building access arrangements. Development assessment should consider the cumulative transport impact of projects in the surrounding area, not just the traffic generated by one building.
B. Sewerage and Wastewater
High-density buildings generate more wastewater than detached houses occupying the same plot. The relevant question is whether the connecting sewer, downstream network and wastewater treatment facilities have sufficient capacity. A connection to an existing sewer does not, by itself, establish that the entire system can accommodate additional demand.
Where capacity is inadequate, the consequences can include overflows, pollution and pressure on surrounding drainage channels and waterways. The solution requires coordinated planning between developers, the county and the relevant water and sanitation providers.
C. Water Supply
A larger residential population places greater demand on water production, distribution and storage. Where supply is unreliable, buildings may depend on storage tanks, supplementary boreholes or water deliveries. These arrangements can increase service charges and create additional operating and regulatory considerations. Sustainable densification requires a realistic assessment of water demand and the capacity of the supply network, including cumulative demand from nearby developments.
D. Drainage and Flooding
Redevelopment can replace gardens, soil and vegetation with roofs, paved driveways, parking areas and other impermeable surfaces. This reduces the area available to absorb rainfall and can increase surface runoff. If drainage systems are inadequate or poorly maintained, heavy rainfall can produce localised flooding. The response should include appropriate site coverage, stormwater management, protection of natural drainage routes and maintenance of public drainage infrastructure.
E. Electricity, Waste and Public Amenities
High-density development also increases demand for electricity, waste collection and public facilities. Neighbourhoods need sufficient capacity in schools, healthcare, recreational space, pedestrian routes and other amenities. Where population growth outpaces the provision of these services, residents may experience declining convenience and quality of life. These effects vary across streets and neighbourhoods. They should be established through local evidence and infrastructure assessments rather than assumed to be uniform across Nairobi.
What the evidence tells us and what remains to be measured
Academic research provides a strong basis for identifying the planning and infrastructure challenges associated with densification. But a comprehensive assessment of present-day conditions requires more than historical studies. For example, the University of Nairobi’s research on Kilimani documents the historical relationship between rezoning, high-density redevelopment and infrastructure pressure.
A 2024 study of Kileleshwa examines the neighbourhood’s changing urban form and the social tensions associated with redevelopment. In addition, the Nairobi City County Assembly’s published committee records include a report dated 7 August 2025 concerning residents’ petitions about zoning compliance, public participation, unauthorised construction and follow-up inspections in Kilimani, Westlands, Kileleshwa, Parklands and South C.
These sources demonstrate that development control and infrastructure planning remain significant policy concerns. They do not, on their own, establish the current capacity of every road or sewer line, nor do they prove that every new building is non-compliant. A stronger neighbourhood-level assessment would require current information on:
- Sewer network capacity, connections and treatment provision.
- Water supply capacity and demand.
- Traffic volumes, junction performance and road access.
- Drainage capacity, flood incidents and surface-water management.
- Approved development density compared with actual construction.
- Compliance inspections and enforcement outcomes.
- Provision of schools, healthcare, waste collection and open space.
Does densification create or destroy property value?
The answer depends on the quality of development and the condition of the surrounding neighbourhood. Densification can create value by increasing housing supply, improving land utilisation and supporting shops, services and public transport. It can also enable more households to access established employment centres and amenities.
However, where congestion, unreliable utilities, poor drainage or declining environmental quality become persistent, the neighbourhood may become less attractive to some buyers and tenants. For investors, the implications extend beyond the purchase price and projected rental yield. A property’s long-term performance can also depend on service reliability, maintenance costs, accessibility, management quality and the wider neighbourhood environment.
This creates an important distinction between the value of an individual building and the quality of the urban system in which it operates. A modern apartment with excellent finishes may still face operational challenges if water supply is unreliable, sewerage capacity is constrained or access roads are consistently congested. For landowners and developers, infrastructure capacity should therefore be treated as part of investment due diligence, not as an issue to be considered only after construction.
What should Nairobi do differently?
We believe a more sustainable approach should focus on infrastructure-led densification. First, plan at neighbourhood level. Development intensity should be assessed alongside the capacity of roads, sewerage, water, drainage and public facilities. Cumulative effects matter as much as the impact of individual projects. Second, coordinate development approvals with infrastructure providers. Proposals for major developments should be supported by credible assessments of service demand and the capacity of relevant networks.
Third, strengthen development control. Applicable zoning rules, approvals, inspections and enforcement should be transparent and consistently applied. Public participation should be meaningful, particularly where proposed changes substantially affect existing neighbourhoods. Fourth, protect environmental assets. Green spaces, natural drainage routes, permeable surfaces and appropriate plot coverage should form part of urban planning rather than being treated as secondary considerations.
Fifth, connect development contributions to infrastructure outcomes. Where legally and practically appropriate, infrastructure funding mechanisms should help ensure that the costs of accommodating urban growth are properly addressed. This requires transparent governance, clear responsibilities and accountability for delivery. Finally, measure outcomes. Nairobi should track whether infrastructure improvements keep pace with additional development, rather than measuring urban progress only through the number of buildings approved or completed.
Our View
At Stable Merchants, we see Nairobi’s transformation as a shift from land value determined largely by location and plot size to land value increasingly influenced by permitted development potential. That shift has created substantial opportunities for property owners, developers and investors. But development potential cannot be considered in isolation.
A successful property investment depends on more than the number of floors that can be constructed. It also depends on reliable utilities, accessible roads, effective drainage, appropriate planning and a neighbourhood that remains attractive to residents and businesses.
We do not believe the answer is to preserve every established neighbourhood exactly as it was. Nairobi needs additional housing, and well-managed densification can make better use of scarce urban land. The priority should be to ensure that the pace and intensity of development are matched by investment in the infrastructure that supports it.
For developers, that means assessing service capacity and neighbourhood effects before committing capital. For investors, it means including infrastructure reliability and long-term liveability in due diligence. For policymakers, it means treating roads, sewerage, water, drainage and public amenities as integral components of development planning.
Ultimately, Nairobi’s success should not be judged by how many skyscrapers rise above its skyline. It should be judged by whether the city can support the people who live and work in them. The future of Nairobi real estate depends not only on building upwards, but on building a better-functioning city around those buildings.
Stable Merchants Limited
Driven by Value
