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🏗️ Construction Area Calculator

Estimate construction area from parcel area, floor-area ratio and user-entered site coverage

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Provided by Hesapstan, this tool calculates area estimates from parcel size and zoning ratios entered by the user.

Formula

Total floor-area allowance equals parcel area multiplied by FAR; footprint equals parcel area multiplied by coverage ratio.

Limits

Not a zoning certificate

Setbacks, plan notes, basements, shared areas, permits and municipal interpretation must be checked officially.

Frequently Asked Questions

Are FAR and coverage the same?

No. FAR relates to total buildable floor area; coverage relates to ground footprint.

Does it apply municipal plan notes?

No. The user enters the applicable ratios.

Is the permit area final?

No. It is a preliminary estimate.

References