Fabl. Design
Site & Civil / Zoning limit

Lot coverage

Definition

The share of a lot, expressed as a percentage, that may be covered by buildings or, in some codes, by all hard surfaces.

HouseGarageCovered area ÷ lot area = lot coverage %CountedLot line
Fig. 239 — Lot coverage: schematic studyNOT TO SCALE

Structural & construction notes

Definitions vary: some codes count only roofed structures, others include decks, drives, and patios. Additions and ADUs often hit the lot-coverage limit before they hit setbacks.

Frequently Asked Questions

An educational reference. Project-specific design requires professional guidance.