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Development calculatorDeveloper Calculator
Build and cost estimate

Developer calculator

Enter the plot details to estimate buildable area, cost and unit mix.

Plot inputs

Adjust values — calculations update instantly

m² (enter manually)

Number of floors

Finish quality

Total indicative cost

⃁ 1,144,000

At an average of 2,200 SAR/m² over 520 m² of built area

Land utilisation

Ground floor60%

240 m² of 400 m²

Upper floors (×1)70%

280 m² per floor

Total built area

520 m²

Floors

2 floors

Suggested unit mix

  • 1

    Ground floor

    One unit at 192 m² (suitable for a shop or a large apartment)

  • 2

    Upper floors

    One apartment per floor at ~224 m² — 1 apartment total

Cost breakdown

Structural shell⃁ 457,600
Finishes⃁ 514,800
Fees, permits, contingencies⃁ 171,600

Note: Educational assumptions, not contractor prices: 60% ground and 70% upper coverage, 80% usable unit area after common spaces. Unit costs and allocations are scenarios, not quotes or municipal rules. Land, financing and taxes are excluded. The available area may not fit a unit at the assumed size. Confirm design and costs with an engineer and contractor.

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Massing · feasibility

Hypothetical building-massing scenario

Calculations use disclosed assumptions for setbacks, floors and FAR. A city name alone cannot determine parcel planning rules.

Binding: FAR (built-area ratio)

Footprint under the assumption

267.7 m²

16.4 × 16.4 m · Assumed setback on each side: 3 m

Scenario built area

750 m²

FAR: 1.5× · Efficiency: 82%

Required floors / scenario cap

3 / 4

The last floor may be partial; the cap is hypothetical

Estimated units

3

Avg unit: 200 m²

Resident parking

3

Per unit

Visitor parking

1

Ratio per unit

Setbacks, floors, FAR and parking are modelling assumptions, not approved regulations or development rights. Verify parcel rules through Balady, the municipality and a licensed engineering office. Supplied width × depth must match area.
METHODOLOGY · How we calculate

How are the numbers built?

A free calculation model with illustrative assumptions, not current market pricing or approval of a parcel’s building rules.

01ZONING

Build ratio

The cost model assumes 60% ground-floor and 70% upper-floor coverage. Actual coverage depends on the parcel and permit; confirm through Balady and a licensed engineering office.

02COST

Cost per m²

Assumed costs are SAR 1,500/m² for economic, 2,200 for commercial and 3,500 for luxury finish. These are scenarios, not verified market averages or contractor quotes; land, financing and taxes are excluded.

03BREAKDOWN

Cost breakdown

Illustrative split: 40% structure, 45% finish and 15% fees and miscellaneous. We reserve 20% of floor area for shared spaces before estimating units; an engineering design determines the actual count.