Floor Space Index (FSI)
Definition
Another term for Floor Area Ratio, representing the ratio of total floor area to plot area. This metric is particularly common in Asian and European planning contexts, where it serves as a primary tool for controlling development density. FSI calculations typically include all enclosed floor areas above and below ground, though specific inclusions and exclusions may vary by jurisdiction.
Purpose
Regulate building density and development intensity in urban planning through a standardized measure of development capacity.
Examples of Use
- Development control and planning permission assessment.
- Urban capacity studies and growth management.
- Land value assessment and development feasibility.
Related Terms
Notes
FSI is widely used in Asian countries for development control and is often accompanied by additional regulations regarding building height, setbacks, and ground coverage.
