Lot Coverage Calculator for Houses, Driveways and Patios

Calculate preliminary building coverage and impervious coverage from lot area, house footprint, garages, patios, driveways and other paved improvements.

Building coverage

Divide covered ground footprint by the applicable lot area; do not substitute total multi-story living area.

Impervious coverage

Definitions may add paving, walks, patios or pools and must be confirmed with the governing jurisdiction.