Carpet Area vs Built-Up vs Super Built-Up: What You're Actually Paying For

When a builder quotes a price per square foot, that number means very little until you know which square footage it refers to. Confusing the three common measurements is one of the easiest ways to overpay without realizing it.

The Three Definitions, Explained Simply

Carpet area is the actual usable floor space inside your walls — the space you can genuinely stand, walk, and place furniture in. Built-up area adds the thickness of your walls and any balconies. Super built-up area goes further, adding your proportional share of shared spaces like the lobby, staircase, and lift — space you'll never personally use but are still paying for.

Why the Gap Between Them Can Be 20-30%

The difference between super built-up and carpet area on the same unit is commonly in the range of 20 to 30 percent. That means a flat advertised at 1,000 square feet super built-up might only give you 700-800 square feet of space you can actually use — a meaningful difference when you're calculating value per rupee spent.

RERA's Carpet Area Rule — Why This Is Now the Number to Trust

RERA requires builders to quote carpet area in their official disclosures, precisely because super built-up figures were being used to make properties look more spacious and cost-effective than they actually are. When comparing options, always ask for and rely on the RERA-disclosed carpet area figure.

A Quick Way to Compare Two Properties Fairly

Never compare a super built-up quote from one project to a carpet area quote from another — you're not comparing the same thing. Convert every option to carpet area first, then compare price per square foot on that basis alone.

Send over a project brochure and I'll break down the real numbers for you — it takes minutes and can change how a "deal" actually looks.

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