Floor Area Ratio (FAR) Calculator
FAR is a standard zoning metric used to determine the maximum gross floor area a building can have relative to the size of its lot. Use this tool to reverse-engineer allowable density.
Input Parameters
Methodology & Assumptions
This calculator determines gross allowable floor area based strictly on FAR multipliers. It does not account for:
- Setbacks: Which restrict the buildable footprint.
- Height limits: Which restrict vertical massing.
- Exemptions: Many codes exclude basements, mechanical penthouses, or structured parking from FAR calculations.
Always verify the specific definition of "Gross Floor Area" in your local municipal code, as definitions vary wildly between jurisdictions.