How Many Apartments Can Fit on a Piece of Land?
When you look at a vacant piece of land, it is tempting to think that the bigger the plot, the more apartments a developer can build.
But property development does not work that way.
A developer cannot simply buy a piece of land and decide, “I will build 100 apartments here.”
The number of units is the result of a feasibility exercise involving planning regulations, land characteristics, building design, infrastructure, market demand and financial projections.
In fact, two plots of exactly the same size can produce completely different numbers of apartments.
So, how does a developer arrive at the final number?
1. The Size and Shape of the Land
The first consideration is obvious: the size of the plot.
A larger plot generally provides more development potential, but the shape of the land also matters.
A rectangular or reasonably shaped plot may allow architects to design buildings more efficiently than an irregularly shaped plot of the same acreage.
For example, a developer may have a 1-acre plot, but not all of that land can necessarily become apartments.
Space may be required for:
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Building setbacks
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Driveways
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Parking
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Landscaping
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Walkways
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Drainage
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Recreational areas
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Utility infrastructure
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Fire access
Therefore, the gross land size is not the same as the actual building footprint available.
2. Zoning and Planning Regulations
This is one of the biggest factors.
Local planning authorities determine what can be developed in a particular location.
Planning controls can influence:
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Permitted building height
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Plot ratio
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Site coverage
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Setbacks
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Density
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Parking requirements
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Land-use designation
A developer may own a large piece of land, but if planning regulations restrict the development to a certain density or height, the number of apartments will be limited.
This is why developers conduct planning and zoning investigations before committing significant amounts of money to a project.
3. Plot Ratio and Development Potential
One of the most important concepts in property development is plot ratio, sometimes referred to as floor area ratio.
In simple terms, it determines how much total floor area can be developed relative to the size of the land.
For example, imagine a developer has a 10,000-square-foot plot and the applicable planning framework allows a total floor area equivalent to 3 times the plot size.
The theoretical maximum gross floor area could be approximately 30,000 square feet.
That does not automatically mean the developer can build 30,000 square feet of apartments.
The developer still has to work within other requirements such as setbacks, parking, circulation, common areas, services and building design.
4. Building Height
Going upward can dramatically change the economics of a project.
A developer may have a relatively small piece of land but obtain approval for a taller building.
Instead of constructing three floors, the developer might potentially develop 10, 15 or more floors, subject to applicable planning and technical approvals.
However, additional height comes with additional costs.
A taller building may require:
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More sophisticated structural systems
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Lifts
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Fire-safety systems
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Stronger foundations
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More complex mechanical and electrical systems
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Higher construction costs
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More stringent approvals
Therefore, the tallest building possible is not necessarily the most profitable building.
5. Parking Requirements
Parking can significantly influence the number of apartments a developer can build.
Imagine a project where every apartment requires a certain amount of parking provision.
If a developer wants to construct 100 apartments, the project may need substantial space for parking.
That creates a fundamental trade-off:
More apartments can mean more parking requirements. More parking can mean less land available for buildings.
Developers therefore have to design the entire site rather than looking at the apartment block in isolation.
Basement parking, podium parking and other solutions can increase development potential, but they also increase construction costs.
6. The Size of the Apartments
The number of units is also heavily influenced by the size of each apartment.
Suppose a developer has 40,000 square feet of saleable residential space.
That space could potentially produce:
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40 units averaging 1,000 square feet
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50 units averaging 800 square feet
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80 units averaging 500 square feet
The actual project would be more complicated because of circulation, common areas, services and other spaces, but the principle remains:
The smaller the average apartment, the more units can potentially be created from the same amount of residential floor area.
This is why developers carefully study the market before choosing between studios, one-bedroom, two-bedroom and larger apartments.
7. Market Demand
A developer is not simply asking, “How many apartments can I build?”
The better question is:
“How many apartments can the market absorb profitably?”
This is critical.
A developer might technically be able to construct 120 apartments, but if the local market strongly prefers larger two-bedroom apartments, building 120 tiny units may create a product-market mismatch.
Developers study:
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Buyer preferences
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Rental demand
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Selling prices
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Rental rates
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Competing developments
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Vacancy levels
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Target demographics
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Household sizes
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Investor demand
The objective is to create the right number and type of units for the market.
8. Construction Costs
More apartments do not automatically mean more profit.
Every additional unit requires construction, finishes, plumbing, electrical connections, doors, windows, kitchens, bathrooms and other components.
A developer therefore prepares a detailed cost estimate.
They consider costs such as:
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Land acquisition
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Construction
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Professional fees
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Approvals
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Financing
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Marketing
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Infrastructure
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Utilities
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Taxes and statutory charges
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Contingencies
The developer then compares the expected revenue with the total development cost.
9. The Financial Feasibility of the Project
This is where everything comes together.
Imagine two possible development options.
Option A: 50 larger apartments
Option B: 90 smaller apartments
Option B produces more units, but perhaps it requires substantially more parking, higher infrastructure costs and additional lifts.
Option A may have fewer units but could generate a better return on the investment.
Developers therefore use feasibility studies to estimate:
Total Development Cost → Expected Revenue → Profit → Return on Investment
The preferred design is usually not simply the one with the highest number of apartments.
It is the one that provides the strongest combination of marketability, compliance, construction practicality and financial viability.
10. Infrastructure and Utilities
A development must also be supported by adequate infrastructure.
Developers consider:
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Water supply
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Sewerage
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Electricity
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Roads
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Stormwater drainage
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Waste management
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Internet and telecommunications
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Emergency access
A project with hundreds of apartments can place significant demand on local infrastructure.
If infrastructure is inadequate, the developer may need to invest in additional solutions, which can affect the project's feasibility.
11. The Developer's Target Market
The target customer can completely change the development strategy.
A developer targeting young professionals may favour studios and one-bedroom apartments.
A developer targeting families may focus on two- and three-bedroom apartments.
A luxury developer may build fewer units with much larger floor areas and extensive amenities.
Therefore, the number of apartments is closely connected to who the developer expects to buy or rent them.
12. Amenities and Common Areas
Modern apartment developments often include facilities such as:
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Swimming pools
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Gyms
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Children's play areas
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Gardens
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Clubhouses
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Rooftop spaces
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Co-working areas
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Lounges
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Security facilities
These spaces consume land and floor area.
However, they may also make the development more attractive and potentially support higher selling prices or rental income.
This creates another important balance:
The developer must determine how much space should generate direct income and how much should improve the value of the entire project.
13. Return on Investment
Ultimately, development is a business.
A developer may start with a simple question:
“If I invest KSh 500 million into this project, what will I get back?”
The number of apartments is then tested against the expected sales or rental income.
For a sales project, the developer may calculate:
Number of Units × Average Selling Price = Gross Sales Revenue
For a rental project, the calculation may consider:
Number of Units × Average Rent × Occupancy = Potential Rental Income
These figures are then compared with development costs, financing costs and other expenses.
This is why the final number of apartments is often the result of several iterations between the architect, quantity surveyor, planner, engineers, financial team and developer.
Why This Matters to Property Buyers
Understanding this process can make you a much smarter property buyer.
When you see a development with 150 apartments on a relatively small piece of land, do not immediately assume that the developer simply wanted to maximise units.
There may be a carefully calculated reason behind the number.
Likewise, a development with fewer apartments is not necessarily inefficient.
It may be designed around larger units, higher-end amenities, more parking, lower density or a premium target market.
The important question is not simply:
“How many apartments are there?”
Ask:
“Why was this number chosen?”
That question can reveal a lot about the project's design, target market and investment strategy.
The Bottom Line
The number of apartments a developer builds on a piece of land is rarely a random decision.
It is influenced by land size and shape, planning regulations, density, plot ratio, building height, parking, apartment sizes, infrastructure, market demand, construction costs, financing and expected returns.
The best developers do not simply ask how many units they can squeeze onto a plot.
They ask:
“What is the highest and best use of this land?”
That distinction is important.
Because in property development, more units do not always mean more value.
Sometimes, the smartest project is the one that builds fewer apartments—but builds the right apartments in the right location for the right market.
FAQs
1. Does a bigger plot always mean more apartments?
Not necessarily. Planning regulations, density, building height, setbacks, parking and the shape of the land can all affect development potential.
2. Who determines how many apartments can be built?
The final development concept is normally produced through collaboration among the developer, architects, planners, engineers, quantity surveyors and other professionals, while the project must comply with the applicable planning and approval requirements.
3. Why do some developers build smaller apartments?
Smaller units can allow a developer to create more units from available floor area and may suit markets where affordability and rental demand are strong.
4. Is the maximum number of apartments always the most profitable option?
No. A higher unit count can also increase construction, parking, infrastructure, financing and management costs. Profitability depends on the entire development model.
5. What should a property investor look at besides the number of apartments?
Consider location, unit sizes, pricing, expected rental income, service charges, amenities, parking, developer track record, construction quality and the long-term demand for the property.
6. Can the number of apartments affect investment returns?
Yes. Unit density can influence the selling price, rental income, service charges, operating costs, infrastructure requirements and ultimately the project's financial performance.
About Realtor Ochieng Wycliffe
At Petlif Properties Kenya, we believe that a property decision should be based on understanding—not just attractive pictures and sales promises.
Whether you are buying for occupation, rental income or long-term investment, understanding how a development is planned can help you ask better questions and make better decisions.
Website: https://www.petlifproperties.co.ke
Call/WhatsApp: 0722506632 / 0713693863
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