The unit mix decision behind every residential scheme, compared on revenue, cost, parking, letting speed and management, for a Saudi development.
On a fixed envelope you can build a smaller number of generous units or a larger number of compact ones, and the two produce different businesses from the same plot. Small units earn more per square metre and cost more per square metre. Large units are cheaper to build and slower to let. The right answer depends on your occupier and your exit, so it is worth comparing properly.
Fewer, larger units at a glance
A mix weighted towards three and four bedroom apartments or duplexes, with fewer kitchens, bathrooms and entrance doors for the same floor area. Construction cost per square metre is lower because wet areas and fit-out repetition drive cost. Parking demand per square metre is lower, management is simpler, and the target occupier is typically a family staying several years.
More, smaller units at a glance
A mix weighted towards studios, one and two bedroom units. More units means more kitchens, bathrooms, doors and meters, so cost per square metre rises, and circulation absorbs more of the gross area. In exchange, rent per square metre is usually higher, the pool of tenants is larger, and income is spread across more tenancies.
Revenue per square metre
Fewer, larger units: Lower, since larger units generally achieve a lower rate per square metre.
More, smaller units: Higher, because smaller units command a premium rate for the area they occupy.
Construction cost per square metre
Fewer, larger units: Lower, with fewer kitchens, bathrooms, doors and service connections per square metre.
More, smaller units: Higher, because the expensive parts of a dwelling repeat more often in the same area.
Net to gross efficiency
Fewer, larger units: Better, since fewer units need less corridor and fewer entrance arrangements.
More, smaller units: Worse, as more doors off a corridor and more cores consume saleable area.
Parking demand
Fewer, larger units: Fewer bays for the same floor area where provision is set per unit.
More, smaller units: More bays for the same floor area, which can force a larger or deeper basement.
Letting speed and void risk
Fewer, larger units: Slower to let, with a smaller tenant pool, but longer tenancies once let.
More, smaller units: Faster to let with a larger pool, but more frequent turnover and more voids to manage.
Management intensity
Fewer, larger units: Lower, with fewer tenancies, fewer renewals and fewer maintenance call-outs.
More, smaller units: Higher, and the operating cost ratio is meaningfully worse per riyal of rent.
Exit market
Fewer, larger units: Owner-occupiers and families, whose demand is more sensitive to finance conditions.
More, smaller units: Yield-driven investors, whose demand is more sensitive to rental evidence.
When fewer, larger units wins
- A catchment dominated by families rather than single professionals.
- A district where large units are underprovided and command a premium per square metre.
- An owner who wants low management intensity and long tenancies.
- A plot where parking provision is the binding constraint on unit numbers.
- A sale exit to owner-occupiers, who generally buy the larger sizes.
When more, smaller units wins
- A catchment driven by single professionals, young couples or short stays.
- A location near employment, a transport line or an institution.
- An owner who wants income diversified across many tenancies rather than a few.
- A market where the total rent a household can pay caps the size it will take.
- An exit to investors buying for yield rather than to owner-occupiers.
How to decide
Decide from the occupier evidence first and the arithmetic second. Establish what the catchment actually rents, at what rate per square metre and with what void, then model both mixes on the same gross area with parking provision applied honestly. Choose the mix with the better net operating income if you are holding, or the better margin after the cost of the extra fit-out and parking if you are selling. Where the two mixes are close, take the one with the lower management intensity.
The decisive documents are an agent-backed schedule of achieved rents by unit size in that catchment, two test-fit layouts showing net area and net to gross for each mix, a cost plan for each, and a parking calculation against the municipal requirement. Ask the same agents what they struggle to let, because that answer tends to be more reliable than what they say is in demand.
Domira designs, builds and manages projects across Saudi Arabia for owners who are based abroad: land appraisal, feasibility, design, construction, handover and asset management under one accountable contract. Send us the plot or the brief and Domira will put the numbers in front of you before you commit.
Frequently Asked Questions
Do small apartments earn more than large ones in Saudi Arabia?
Per square metre, smaller units usually achieve a higher rate, because the total rent a household can pay is spread over less area. Per unit and over time, the picture is mixed, because smaller units bring more turnover, more voids and higher management cost. Compare net operating income for both mixes on the same building rather than comparing headline rates.
How does the unit mix affect parking requirements?
Where municipal conditions set parking per unit, a mix of many small units needs more bays for the same floor area than a mix of fewer large ones. That can push you into a bigger basement, which is among the most expensive space in a building. Test the parking calculation for each mix before fixing the design, and confirm the current requirement with the municipality.
Should I build a mix of unit sizes or repeat one type?
A degree of repetition lowers construction cost and simplifies procurement, while a spread of sizes widens the tenant pool and reduces exposure to one segment. Most schemes settle on two or three types repeated many times. Let the catchment evidence set the proportions, and avoid a size that sits between two recognised markets and appeals to neither.
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