What is Carpet Area / Built-UP Area / Super Built-Up Area

Get to know in Details all about Carpet Area, Built-Up Area & Super Built-Up Area as per RERA (Real Estate Regulatory Authority) Act 2016.

What is Carpet Area?

As per RERA, The Carpet Area means the net usable floor area of an Apartment where you can spread Carpet Or is the internal usable area of the property i.e. the entire floor area of your property which includes the area covered by the walls but excludes Terrace, Balcony or any other spaces which lies outside the walls.

In Simple terms Carpet area is the area within the external walls.

Portion included in Carpet area are Area of Living Room + Area of Bedroom + Study + Dining Room

+ Dressing Room + Kitchen + Toilets + The thickness of the inner walls + Cupboard Spaces + Stair cases within property unit (In case of Bungalows & Villas).

Portion Excluded in Carpet area are External Walls + Service Shafts + Lift + Stair Case + Club House + Open Terrace + Flower Bed + Balcony + Terrace + Verandahs

How carpet area is calculated as per RERA?

As per RERA, the Carpet Area is calculated in the form where 70% is the built up area in most cases and 30% is the Loading.

For Example:

If the Built up area is 1500 sq. ft., the carpet area will be 1050 sq. ft. (i.e. 70 % of the built up area – 30% loading)


What is Built-Up Area?

As per RERA, the Built-Up Area is calculated by adding a Carpet Area or RERA Carpet Area both interior and exterior wall areas exclusive Balcony and corridor if any.

In simple terms Built up Area = Carpet Area + External Walls + Balconies + Service Shafts

Usually the built up area is 10% to 15% more than the carpet area.

Built Up Area = Carpet Area + Wall Areas + Terrace & Balcony + Exclusive Corridor.

Built-Up Area Excludes Open Terrace Area, Lift & Lift Lobby, Stair Case, Club House, Swimming Pool etc.

For Example:

If your Carpet area is 1050 sq. ft., then you’re built up area will be 1155 sq. ft. (10% more added to the carpet area)


What is Super Built-Up Area?

As per RERA, the Super Built-Up Area is the area of Premises which is a saleable area.

In simple terms Super Built up Area = Built up Area + Proportionate Common Area

Proportionate Common Area Includes Common Built up Spaces like Lifts, Lobbies, Air Ducts, Pipe Ducts/Shafts, Stairs, Club House and other Covered Common Facilities.

Proportionate Common Area Excludes Open Areas Like Park, Gardens, Driveways and Roof Terraces.

The loading factor on the carpet area is used to measure the super built up area.

The proportionate share of common areas is referred to as the Loading factor and assigned a percentage that usually ranges from 20% to 40% of the Carpet Area.

For Example:

 Carpet Area (1050) + 40% of the loading of Carpet Area (420) = Super Built up area (1470)

Assume you own a 1000 sq. ft. flat on the third floor, and your friend owns a 2000 sq. ft. flat on the same floor. If the total area of the common area is 1,500 sq. ft., the builder would split the common area in the ratio of the built-up area.

In this case, the ratio is 1:2 and hence, the builder will add 500 sq. ft. to your apartment and 1000 sq. ft. to your friends. Now, the super built-up area of your property will be 1500 sq. ft. and your friend’s super built-up area will be 3000 sq. ft.

What Do You Mean by Loading?

As per RERA, The difference between the super built up area and the carpet area of the apartment is known as the Loading Factor. Such as the Elevator, Lobby, maintenance room, club House, parking etc.

If the Loading factor is 1.40, it suggests that the builder has added 40% to your Carpet Area.

For Example, lets Calculate the Loading Factor:

If the super built-up area is 1470 sq. ft., and the carpet area is 1050 sq. ft., then:

Loading Factor = Super Built-up Area – Carpet Area

Loading Factor = 1470 – 1050 sq. ft.

Loading Factor = 420 sq. ft. [40% of Carpet Area]

The loading factor, therefore, is 40%.

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