01
Site Coverage
Percentage of footprint relative to lot.
TO = footprint ÷ lot area × 10002
Floor Area Ratio
Computable floor area relative to lot.
CA = computable floor area ÷ lot area03
Permeability
Percentage of permeable area.
TP = permeable area ÷ lot area × 10004
Precision and Rounding
Calculations retain JavaScript floating-point precision and display up to two decimal places.
05
Local Definitions and Version
Legal interpretation varies. Reviewed September 6, 2026. Version 1.0.
FAQ
Frequently Asked Questions
Does this tool confirm project approval?+
No. It performs mathematical calculations using supplied values and does not replace municipal law, professional analysis or official approval.
Are the parameters the same across Brazil?+
No. Zoning limits and definitions vary by municipality, zone and the applicable version of local rules.