What is a feasibility study and when do you need one in Kenya?

Before an architect draws a single line, before a structural engineer models a foundation, before a contractor is approached — there is one question worth answering: is this project viable? Not theoretically possible, but financially and physically viable as intended, on this site, at this budget, for this use.

A feasibility study is the structured process of answering that question. It draws together site analysis, zoning compliance, construction cost modelling, revenue or use projections, professional fee budgets, statutory cost estimates, and a preliminary risk assessment. The output is a document that a developer, a lender, or an investor can read and use to make a go/no-go decision with documented evidence rather than optimism.

In Kenya, feasibility studies are under-used at the pre-design stage and over-relied on after problems have already emerged. The developers who commission feasibility studies early — before committing to design fees — typically spend less in total and deliver more viable projects.

A well-structured feasibility study for a development project in Kenya covers the following areas:

Site and regulatory analysis. What does the site allow? Zone classification, permitted use, maximum floor area (GFA), minimum setbacks, maximum height, parking ratios, and any special constraints (coastal setback, heritage overlay, flood risk). This section should draw on confirmed zone data, not the developer's assumption about what is permitted.

Market and demand assessment. Who will buy or rent the finished product, at what price, and at what absorption rate? For residential for-sale, this means comparable sales data and project absorption rates in the area. For residential for-rent, it means vacancy rates and achievable rents. For commercial, it means occupier demand and comparable lease rates. A feasibility study that uses aspirational prices rather than market evidence will overstate viability.

Construction cost plan. A preliminary cost estimate based on documented benchmarks, segmented by construction type and specification level. For a detailed feasibility, this is an elemental cost plan prepared by a QS — not just a per square metre estimate.

Professional fees and statutory costs. Architect, QS, structural and MEP engineer fees; NCA levy; NEMA fees; county planning fees; fire clearance. These are real project costs that affect viability and are frequently omitted from developer proformas.

Revenue model. For income-producing assets (rental residential, commercial, hotel), a discounted cash flow model that shows net income after voids, management costs, and debt service. For for-sale developments, a sales revenue projection with timing assumptions.

Viability summary. Net development value (NDV), development profit margin, return on cost, and a sensitivity table showing how profit changes if construction cost rises, if revenue falls, or if the programme extends. This is where the lender or equity partner looks first.

A project check — the tool available on this site — answers the core regulatory and cost questions in a few minutes: what the site allows, what it might cost to build, and whether the project is viable in broad outline. It is designed for the land evaluation stage: before you buy, before you commit.

A formal feasibility study is the next level of analysis: it is commissioned after the site is confirmed, conducted by a professional team, and produces a bankable document that a lender or investor can rely on. It typically takes 2–4 weeks to prepare and costs KES 150,000–500,000 depending on scope and project complexity.

The project check is free and available immediately. It is the right tool for evaluating a plot you are considering or testing a development concept before spending money on a formal study. The formal feasibility study is the right investment once you have confirmed the basic viability of the site and are committing to the project.

The right time to commission a feasibility study is after the project check has confirmed that the site can support the intended use in outline — but before any design fees are paid.

Developers who commission design before feasibility are essentially spending professional fees to test viability that the feasibility study would have confirmed or rejected for a fraction of the cost. A design process that runs for three months before discovering that the project does not stack financially has wasted money and time.

Lenders and equity investors typically require a feasibility study before committing funds. A borrower who arrives at a bank with a design but no feasibility study will be asked to produce one anyway — at that point, if the study reveals a problem, the design work has been wasted. If the study confirms viability, the design may need to be revised to reflect the feasibility's assumptions.

The exception is very small residential projects — a single dwelling on a purchased plot where the owner is building for own use, not for investment or sale. In this case, the construction cost check is usually sufficient, and a full feasibility study adds limited value.

A development feasibility study is a multi-disciplinary output. For a credible, bankable document, it draws on: a QS or cost consultant for the cost plan and fee estimates; an architect or planner for the site analysis and GFA calculation; a market analyst or valuer for the revenue and demand assessment; and a financial modeller for the development appraisal.

In practice, the lead consultant is often the QS or the development manager. Architect Darani's REDM system structures the feasibility study as a pipeline: site and GIS data feeds the regulatory analysis, the cost benchmarks feed the cost plan, and the financial model is assembled from the combined inputs. The output is a structured document that maps directly to what lenders and investors expect to see.

The feasibility study should be authored by independent professionals, not the developer's in-house team, if it is being presented to a lender or equity partner. An independently validated feasibility is more credible than a developer-prepared proforma.

A feasibility study models outcomes based on assumptions. It cannot guarantee that costs will not increase, that the market will not weaken, or that the planning authority will approve the scheme as designed. It is a risk assessment, not a prediction.

The value of a well-prepared feasibility study is not certainty — it is documented assumptions, explicit risk exposure, and a clear statement of what needs to be true for the project to work. A developer who understands their feasibility assumptions can manage risk throughout the project. A developer who has no feasibility basis cannot.

For Muslim developers, feasibility is not only about bank debt. A growing number of coastal Kenya projects are structured as Musharakah partnerships — land, cash, and expertise pooled by families or investors who share profit and loss without interest-bearing loans. The feasibility study must accommodate this: land valued as capital, cash contributions modelled as equity, and operator profit share treated as a promote tier rather than a financing cost.

Our feasibility tools model equity-only scenarios: Musharakah waterfalls with return of capital, preferred return (conditional on profit), and promote split. The same parcel data, cost benchmarks, and market assumptions that feed a conventional feasibility study also power a halal partnership model. Read the Islamic finance modes hub and the Musharakah partnership article for the contract framework. If you are structuring partners and capital, start with feasibility — numbers before lawyers draft the agreement.

Architect Darani is not a Shariah board and does not issue fatwa. The feasibility output is economic modelling, not a religious ruling. Always present the partnership structure to a qualified scholar alongside the feasibility numbers.