Super Built-Up Area
Full form: SBA
Personal FinanceSuper built-up area (SBA) is the total area including carpet area, walls, balcony, and proportionate share of common amenities (lobby, corridors, gym, security cabin, etc.). It is the largest measurement and was the basis for pricing before RERA mandated carpet area pricing.
In detail
What is included in super built-up area:nCarpet area of apartmentn+ Wall thickness (internal + external)n+ Balcony arean+ Proportionate common areas: entrance lobby, lifts and lift lobbies, corridors, staircase, security cabin, society office, gym, swimming pool changing roomsnnThe "loading" added to carpet area ranges from 20% (simple building) to 45%+ (heavily amenitised complex).nnFor comparing two projects: always compare carpet area rates. An 1,800 sqft SBA flat in one project may have the same carpet area as a 1,500 sqft SBA flat in another, if the first has more common amenities.
Formula
Real-life example
Project A: 1,500 sqft SBA at Rs 6,000/sqft = Rs 90L. Carpet area 900 sqft (40% loading). Carpet rate = Rs 10,000/sqft. Project B: 1,200 sqft SBA at Rs 7,500/sqft = Rs 90L. Carpet area 870 sqft (38% loading). Carpet rate = Rs 10,345/sqft. Same total price, similar carpet -- Project A slightly better value.