Lot Coverage Calculator

Calculate your lot coverage in seconds. Enter your lot size and the footprint of the buildings or structures on the property to calculate the percentage of the lot they cover. Lot coverage is commonly regulated by municipal zoning by-laws and can affect how much of a property can be developed. Use the calculator below to get started.

PARCEL TOOL

Lot Coverage Calculator

Calculate approximately how much of your property is covered by buildings or structures.

1. Enter your lot size

Lot width

Lot depth

2. Enter the total building footprint

Use the area of the buildings or structures that count toward lot coverage under the applicable zoning by-law.

Building / structure footprint

sq. ft.

What does lot coverage mean?

Lot coverage generally refers to the percentage of a lot that is covered by buildings or structures. Municipal zoning by-laws may set a maximum lot coverage for a property.

Building footprint ÷ Lot area × 100 = Lot Coverage %

Important: This calculator is for general educational purposes only. What counts toward lot coverage, and the maximum permitted coverage, can vary by municipality, zone and property. Always confirm the applicable zoning by-law and property-specific requirements.