GLA is the above-grade finished and heated square footage of a residential property, measured per ANSI Z765 standard. Basement square footage is reported separately (it's "below grade" even if finished), and unfinished areas are excluded. GLA is the primary scale variable in price-per-square-foot comp analysis. The appraisal's GLA is the lender-binding number, not the MLS GLA — and discrepancies between MLS and ANSI are common and material (50 sqft at $200/sqft = $10k value change).
Property Valuation