Carpet Area vs Built-Up vs Super Area: A Buyer's Explainer

Carpet area is the usable space inside your apartment walls; built-up area adds the walls and balconies; super built-up area adds a share of common spaces like lobbies, stairs and amenities. When you buy a 3 BHK in Sector 90 Gurgaon, carpet area is the figure that decides how much home you actually live in — so always ask for it in writing.

The three area definitions, in plain terms

Real-estate pricing quietly hinges on which "area" a brochure quotes. Understanding the three tiers stops you from overpaying for space you cannot use.

• Carpet area — the net usable floor space within the internal walls, where you can literally lay a carpet. This is your real living space.
• Built-up area — carpet area plus the thickness of internal and external walls and usually the balcony. Typically around 10–15% more than carpet.
• Super built-up area — built-up area plus your proportionate share of common areas: lift lobbies, staircases, corridors, clubhouse and amenity spaces. This is the "loading" on top of usable space.

The difference between carpet and super built-up is called the loading factor. A project quoting 1,850 sq.ft super area with a 30% loading gives you materially less carpet than one with a 20% loading at the same super area.

Why RERA changed the conversation

Under the Real Estate (Regulation and Development) Act, developers must declare and sell on the basis of carpet area, defined precisely as the net usable floor area. This was a deliberate reform to end the old habit of marketing homes purely on inflated super-area numbers. When you evaluate a Ganga Realty Sector 90 floor plan, the RERA carpet area is the number to anchor on, with super area used only to understand shared amenity provision.

Because carpet area is now the legal basis of sale, our RERA checklist for Gurgaon homebuyers is worth reading alongside this piece before you sign anything.

How loading affects value and price

Loading is not inherently bad — it pays for the lobbies, corridors and amenities you enjoy. The issue is transparency. A generous amenity deck (a grand clubhouse, infinity pool, indoor badminton court and landscaped park) legitimately adds to shared area, but you should know how much you are paying for it. In a low-density project, that shared area is also spread across fewer families, so the amenities feel less crowded per rupee spent.

When comparing options, do three things: ask for the RERA carpet area of each unit, divide the total price by carpet area to get a true rate, and compare that rate across projects. This simple discipline often reveals that a slightly higher-priced home is actually better value on usable space. It is a core step in our wider 3 BHK apartment buying guide.

What to check on the floor plan

Beyond the headline numbers, read the plan itself. Look at how the carpet is distributed — a well-designed ~1,850 sq.ft home with efficient circulation lives larger than a poorly planned one of the same area. Check balcony depth, bedroom proportions and whether the layout offers cross-ventilation and natural light. These design choices determine daily comfort as much as the raw area figure. A low-density project in Sector 90 like Ganga Nine Zero, with just four units per core, typically allows for more efficient, light-filled layouts than densely packed alternatives. To budget the space correctly, pair this with our note on the total cost of ownership for a 3 BHK.

Frequently Asked Questions