Lot Coverage Calculator

Lot coverage is the percentage of a property that is covered by buildings and structures. It's important because most zoning codes limit lot coverage to ensure adequate open space, drainage, and property aesthetics.

Lot coverage is calculated using the formula: LC = (BA / LA) × 100, where LC is lot coverage percentage, BA is building area, and LA is lot area. Simply divide the building footprint area by the total lot area and multiply by 100.

Lot coverage typically includes the footprint of all buildings, garages, covered patios, pools, and other permanent structures. However, specific inclusions may vary by local zoning codes, so check with your local planning department.

Maximum lot coverage varies by zoning district but typically ranges from 25% to 70%. Residential areas often have limits of 30-50%, while commercial areas may allow higher coverage. Always check local zoning regulations for specific requirements.

This depends on local zoning codes. Covered decks and patios usually count toward lot coverage, while uncovered decks may not. Some jurisdictions have height thresholds where structures above a certain height are excluded.

Exceeding lot coverage limits can result in permit denials, stop-work orders, fines, or requirements to remove structures. It may also affect property sales and insurance. Always verify compliance before construction.

Yes, many jurisdictions allow variance requests for lot coverage requirements. You'll typically need to demonstrate hardship, show the variance won't harm neighboring properties, and prove it's the minimum necessary for reasonable use.

Lot coverage calculations for permit applications typically need to be accurate to the nearest square foot and prepared by a licensed surveyor or architect. For planning purposes, approximate calculations are usually sufficient.