Every week I speak to developers and investors who have signed a land deal and are six months in, wondering why the numbers are not working the way they expected.

In most cases, the problem was not the construction cost. It was not the market. It was not the sales team. The problem was in the feasibility model or more precisely, in how the feasibility model was read before the deal was signed.

A feasibility model tells you whether a development plot is worth buying at a specific price. But only if you know where to look and what questions to ask at each step. This article walks through the full framework. Every section, in the right order.

"I have reviewed hundreds of development feasibilities in Dubai. The ones that fail almost never fail at construction or at sales. They fail because someone accepted a land price before they understood what the land could actually produce. The model is not the answer — it is the question. And most buyers are not asking it in the right order." Soliman Hossameldin - Marketing Expert

The value chain: how a plot becomes a profit

Before you open a feasibility model, you need to understand the logic it follows. Every development plot has a value chain — a sequence of calculations that converts raw land into projected revenue and, eventually, into profit or loss. Miss a step in that chain, or misread a number, and the entire conclusion is wrong.

The chain works like this:

1. Plot Area: The physical land size. This is only the starting point. Do not anchor your thinking here.
2. Permitted GFA: Plot area × FAR. This is the maximum buildable area the planning authority allows. This is the real asset you are buying not the land itself.
3. Net Sellable Area (NSA): GFA × efficiency ratio. Typically 75% to 95% for residential. This is the area your buyers actually pay for. Everything else is common area, structure, circulation.
4. Gross Development Value (GDV): NSA × selling price per sq.ft. This is your revenue ceiling. Every cost comes out of this number. If the GDV is wrong, the entire model is wrong.
5. Total Development Cost (TDC): Construction + soft costs + sales and marketing + finance costs. The sum of everything that needs to be paid before profit is recognised.
6. Residual Land Value: GDV − TDC required profit margin. This is the maximum price you should pay for the land. If the asking price exceeds this number, you are buying someone else's margin.

The key principle
Do not value a plot on its land area. Value it on its permitted GFA. Two plots of the same size can have completely different development economics depending on their FAR, height limits, and permitted use.

GFA and FAR: what you are actually buying

The permitted GFA is the most important number in any development plot feasibility. It defines the project size, the revenue ceiling, and ultimately, the maximum land price. Yet it is also the number most frequently misrepresented intentionally or not.

GFA is calculated as follows:

FormulaPermitted GFA = Plot Area × FAR
Example: 27,577 sq.ft. × 2.5 = 68,943 sq.ft. GFA

Before accepting any GFA figure in a feasibility model, verify it against the official Affection Plan from DDA or Dubai Municipality. The FAR, height limits, setbacks, and permitted uses are all documented there. If the model uses a GFA that is not supported by the Affection Plan, every downstream calculation is built on fiction.

The second thing to check is the BUA-to-GFA relationship. Built-Up Area (BUA) includes all constructed area walls, balconies, structure and is typically 50% to 70% larger than GFA. It drives construction cost. If the model uses GFA as the basis for construction cost, the build cost is being materially understated.

Common error
Construction cost is calculated on BUA, not GFA. Using GFA as the cost basis typically understates build cost by 40% to 60%. This is one of the most frequent errors in developer-presented feasibility models.

GDV: is the selling price assumption real?

Gross Development Value is the total revenue the project is expected to generate. It is calculated as Sellable Area × Selling Price per sq.ft. Getting this number right is the single most important act in feasibility analysis because every other number in the model is anchored to it.

There are three questions you need to answer before accepting a GDV figure.

Is the selling price supported by comparables?

Pull recent transactions for similar product type, unit size, and delivery timeline in the same submarket from Property Monitor or DLD data. The comparable should match on specification — not just area. A luxury-finish 1BR in a podium building is not a comparable for a standard-finish 1BR in the same postcode.

Is the efficiency ratio realistic?

The NSA-to-GFA efficiency ratio determines how much of your buildable area is actually sellable. Residential benchmarks in Dubai typically run between 75% and 95%. A model using 95% efficiency on a complex massing with deep floor plates and multiple lifts is likely overstating sellable area. Ask for the unit schedule not just the efficiency percentage.

Has the unit mix been stress-tested?

A model presenting a blended AED per sq.ft. across a full unit mix can hide weaknesses. If the margin depends on selling 60% of units as studios at AED 2,200 per sq.ft. in a market that is currently absorbing studios at AED 1,700 per sq.ft., the GDV is wrong. Ask to see the unit mix, unit count, and per-type pricing assumptions separately.

"A GDV built on optimistic pricing is not analysis it is a sales document in disguise. The first thing I do when I see a feasibility is pull the comparable transactions myself. If the selling price assumption does not hold up against real DLD data, nothing else in the model matters."
Soliman Hossameldin - Marketing Expert

Total Development Cost: the number that protects your margin

Total Development Cost (TDC) is the sum of everything that needs to be paid to deliver and sell the project. In a well-structured feasibility model.

The two items most frequently missing from developer-presented feasibility models are finance costs and contingency. In a market where construction costs have risen sharply over the past 24 months, omitting a 7% contingency on a AED 50M build cost is a AED 3.5M hole in the model before the project has broken ground.

Critical Check Parking

Basement parking on a tight plot can consume 30% to 40% of your total development budget before a single saleable unit is designed. Always verify the parking requirement from the Affection Plan and model it explicitly. On small-to-medium plots, podium parking that reduces sellable GFA can be equally destructive to margin.

What a 31% margin actually looks like in numbers

This is a real development feasibility for a mid-scale residential plot in Dubai. Every number is verifiable. Use it as a reference point when reviewing models presented to you.

• 68,943Permitted GFA sq.ft.
• AED 1,900Selling price / sq.ft.
• AED 124MTotal GDV

Notice what makes this model work: the land cost at AED 21.8M represents AED 316 per sq.ft. of plot area but only AED 316 per sq.ft. of land because the FAR of 2.5 means the actual land cost in AED per GFA sq.ft. is AED 790. That is the number to benchmark against comparable land transactions in the submarket, not the headline per-plot-sqft price.

The benchmark that matters

Always convert land price to AED per permitted GFA sq.ft. before making any comparison. Recent transactions in the same submarket sourced from Property Monitor or DLD give you the real market benchmark. If the asking price is materially above the residual land value at target margin, the land is overpriced — regardless of what the location story says.

Sensitivity analysis: what happens when things go wrong

A feasibility model that only presents the base case is not a feasibility model. It is a pitch document. The value of a proper feasibility is in what it tells you when the assumptions move against you.

Before making any acquisition decision, run these four stress tests:

1. Selling price −10%: What does the margin look like if market pricing softens between launch and delivery? In a 24-to-36 month project cycle, a 10% price correction is not a black swan scenario. If the deal does not survive this test, the land price is too high.
2. Construction cost +10%: Dubai construction costs have risen 25% to 35% over the past three years. A 10% upside sensitivity on build cost is a reasonable assumption for any project starting today. Apply it and check the margin holds.
3. Absorption rate halved: What happens to your cashflow and finance cost if units sell at half the assumed monthly velocity? Slower absorption extends the finance period and increases carry cost. Many models assume absorption rates that the submarket cannot support at launch.
4. Efficiency ratio reduced by 5%: Design development almost always reduces efficiency from the concept-stage assumption. A 5% reduction in efficiency on a 68,000 sq.ft. GFA project is 3,400 sq.ft. of lost sellable area at AED 1,900/sq.ft., that is AED 6.5M off the GDV before the project has broken ground.

If the model still delivers a margin above 20% under all four stress tests simultaneously, the deal has genuine downside protection. If any single stress test breaks the margin below 15%, the land price needs to be renegotiated or the deal should not proceed.

The five questions every buyer should ask

Before committing to any plot acquisition in Dubai, I ask five questions about the feasibility model. These are not complex questions. They take 30 minutes to work through with the seller or their advisor. But in my experience, fewer than one in four development plots presented to buyers are accompanied by models that can answer all five cleanly.

Is the GFA verified against the official Affection Plan?
Not an estimate. Not a comparable. The official, stamped plan from DDA or Dubai Municipality with a current date.
Is construction cost based on BUA, not GFA?
And does it include parking, podium structure, external works, and authority connection fees?Are finance costs and contingency included in TDC?
If not, add them before drawing any conclusion from the margin figure.
Are the selling price assumptions backed by recent comparables?
Not asking prices. Actual transacted rates in the same submarket for the same product type, from Property Monitor or DLD data published within the last six months.
Does the model survive a −10% price and +10% cost scenario simultaneously?
If yes, and margin is still above 20%, the deal has structural integrity. If not, the land price needs to move or the deal should not proceed.

"The developers who consistently protect their margin are not the ones with the best locations. They are the ones who run the stress test before they fall in love with the deal. A model that only works at best-case pricing is not a feasibility — it is optimism with a spreadsheet attached."
Soliman Hossameldin - Marketing Expert

Development feasibility is not complicated. But it requires discipline — the discipline to follow the value chain in the right sequence, to verify the inputs before trusting the outputs, and to stress-test the model before it becomes a signed SPA.

The developers who consistently protect their margin in Dubai's current market are not the ones with the best locations or the most aggressive pricing. They are the ones who read the model correctly before they buy the land.

If you are looking at a plot right now and want the feasibility reviewed before you commit — I am happy to run through it with you. No obligation. Just the numbers, in the right order.