Building Efficiency Ratio
Definition
The ratio of usable floor area to gross floor area, expressed as a percentage. This metric indicates how effectively a building’s total area is utilized for its primary functions. Modern office buildings typically aim for efficiency ratios between 75% and 85%, though this varies by building type and market.
Purpose
Evaluate the space efficiency and economic viability of building designs while benchmarking against industry standards.
Examples of Use
- Building design optimization and value engineering.
- Investment analysis and feasibility studies.
- Property comparison and performance assessment.
Related Terms
Notes
Higher efficiency ratios generally indicate better building economics, though optimal ratios vary by building type and use. The ratio is a key metric for investors and developers.
