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What is the difference between a built-up area, a super built-up area, and a carpet area?

Updated: Nov 8, 2022

What is a Carpet Area?

An area that can be covered by carpet or net usable area is called a carpet area. The carpet area is the distance between the inner walls. Common areas such as lift, lobby, etc. are not included under the carpet area.

According to Real Estate Regulatory Authority (RERA), Carpet area means the net usable floor area of an apartment, excluding the area covered by the external walls, areas under services shafts, exclusive balcony or verandah area and exclusive open terrace area, but includes the area covered by the internal partition walls of the apartment.

What is covered under the carpet area?

  • Bedroom

  • Dining room

  • Dressing room

  • Drawing room

  • Kitchen

  • Bathroom

  • Storeroom

  • Study room

  • Puja room

  • Balconies within the house

  • The staircase within the house, etc.

What is not covered under the carpet area?

  • External and internal walls

  • Common areas

  • Terrace

What is a built-up area?

The built-up area of a premise is measured from the external perimeter wall surfaces. It is the carpet area plus the wall thickness along with other unusable areas within the apartment such as the dry balcony, terrace, flower beds, etc. It is always more than the carpet area.

Built-up area = Carpet area + area of walls

What is covered under the built-up area?

  • Carpet area

  • External and internal walls

  • Utility ducts

What is typically not included under built-up area?

  • Courtyard at the ground level

  • Chejja

  • Garden

  • Plant

  • Nursery

  • Platform around a tree

  • Overhead water tank

  • Rocky area

  • Well and well structures

  • Fountain

  • Catch-pit

  • Conduit

  • Culvert

  • Drainage

  • Gully pit

  • Chamber gutter

  • Compound or boundary wall

  • Watchman booth/pump

  • Uncovered staircase

  • Sump tank, etc.

What is a super built-up area?

The Super Built-up area of a premise is the saleable area, which includes the carpet area, along with the terrace, balconies, areas occupied by walls, and area occupied by common/shared construction (e.g. lift, stairs, etc). In some cases, builders include amenities like a pool, clubhouse, and garden. Builders use the loading factor on the carpet area to arrive at the super built-up area.

Super built-up area = Built-up area + common areas

What is covered in the super built-up area?

  • Built-up area of the flat/apartment

  • Clubhouses

  • Swimming pool

  • Gymnasium

  • Lift

  • Pipe/shaft ducts

  • Air ducts

  • Lobby

  • Staircases

  • Any other common facilities


Thank you for reading!👍 Lochan Yadav



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