Page Contents
- What Is Built up Area And Carpet Area?
- Difference Between Carpet Area And Built Up Area
- How To Calculate Carpet Area?
- How To Calculate The Built up Area?
- How To Calculate Carpet Area From Built up Area?
- How Much Is 1 BHK Carpet Area?
- How Much Is 2 BHK Carpet Area?
- Important Things About The Carpet Area
- Important Things About Built up Area
- Does Carpet Area Include Balcony?
- What Is RERA Carpet Area?
- What is Super Built up Area?
- What Is Considered In The Super Built up Area?
- Differences Between Carpet area, Built up area And Super Built up Area
- Super Built Up Area, Built Up Area & Carpet Area Images
What Is Built up Area And Carpet Area?
Carpet area
Carpet area of a flat is an area that can be covered by carpet which includes net usable area.
Built up area
The built up area of a flat includes the carpet area with the wall thickness & other unusable areas within an apartment
Homebuyers sometimes are confused about what a carpet area is while purchasing a residential property.
In simple terms, carpet area is an area that can be covered by carpet which includes net usable area. It is the distance between the inner walls. Areas like the lift and lobby are excluded.
The built up area includes the carpet area with the wall thickness & other unusable areas within an apartment including terrace, dry balcony, flower beds etc. Built up area is always more than the carpet area.
Difference Between Carpet Area And Built Up Area
| Aspect | Carpet area | Built up area |
| Definition | The usable space within a home that can be covered by carpet. | The total area of a flat including the carpet area, thickness of the walls, and areas of the balconies and other spaces |
| Usable space | Represents the space required for living | Represents usable space and structural space |
| Includes | All rooms like Living room, bedroom, kitchen, internal walls and bathroom | Carpet area, Internal walls, External walls, Balconies, utility area |
| Excludes | External walls, Balconies, common areas | Common areas |
| Wall consideration | Does not include area of the walls | Includes the area of both internal and external walls |
| Balconies | Excluded | Included (if any) |
| Common area | Excluded (corridors, lifts, staircases) | Included (corridors, lifts, staircases) |
| Significance | Represents the exact living space in the apartment | Represents the total area of the apartment also occupying walls and balconies |
| Usage | To calculate actual usable living space | To determine the overall size of the property for pricing and construction purposes. |
| Measurement units | Measured in sq ft or sq m | Measured in sq ft or sq m |
| Example | If the carpet area is 1000 sq ft, then that is the space that can be actually used for living | If the built up area is 1100, it includes 1000 sq ft carpet area and 100 sq ft for walls, balconies, etc. |
| Relevance for pricing | Used to access if the apartment size meets needs | Used by builders and developers to determine price and size of the property |
| Common term used by builders | Often used to define actual livable space | Often used to calculate price and space occupied by the property |
How To Calculate Carpet Area?
Professionals such as contractors, civil engineers, architects and homebuyers require a quick carpet area calculation. The formula to calculate carpet area is
Carpet area = Area of bedroom+ living room+ balconies+ toilets – inner wall thickness
As per the RERA Act, the builder or the real estate developer must make the buyer aware about the carpet area of the property. The property price should also be on the basis of the carpet area and the homebuyer has every right to know about the ratio of the carpet area to the built up area. Based on the ratio, the space is calculated.
How To Calculate The Built up Area?
While the carpet area represents the actual floor space confined between the walls, the built up area includes the carpet area plus the area covered by the balconies, ducts, walls with other structural elements.
The formula to calculate Built up area is-
Built up area = Carpet area + area of walls + area of balcony
Our most popular article – What Is RERA Carpet Area: How Carpet Area Definition Changes In RERA
How To Calculate Carpet Area From Built up Area?
If the built up area of a property is 1,500 sq ft, then the carpet area would be
1,500 x 0.7 = 1050 sq ft.
Hence in this case, the carpet area of a flat would be around 1050 sq ft even though the built up area is 1,500 sq ft.
Built up area is generally 15-30% more of the carpet area. This is because built up areas include spaces like balconies, terraces, utility areas, etc.
How Much Is 1 BHK Carpet Area?
The carpet area of 1 BHK houses typically range from 400 to 600 sq ft which is the standard size of one bedroom flat.
This is a good carpet area for 1 BHK flat which includes a bedroom, living room, pooja room, kitchen,a hall and a bathroom. This space can accommodate atleast 1 or 2 family members comfortably.
Calculation of 1 BHK Carpet Area
1 Bedroom
Area: 9 x 15 sq ft = 135 sq ft
1 Kitchen
Area: 9 x 6 sq ft = 54 sq ft
1 Toilet
Area: 6 x 6 sq ft = 36 sq ft
Living Room
Area: 10 x 16 sq. ft = 160 sq. ft
Pooja Room
Area: 3.5 x 4.5 sq. ft = 16 sq ft.
Circulating Area (Passage Area) = 10% or 40 sq ft.
1 BHK Carpet Area Total: 441 sq. ft
Once you have added everything up, you will notice that the total carpet area for a 1 BHK flat is 441 sq ft.
The built up area of this 1 BHK flat would be 20% more should be added as the area of the walls.
Hence, the built up area of 1 BHK flat is 441 + 20% = 529 sq ft.
Our most read article – What Is Carpet Area, Built-up Area And Super Built-up Area?
How Much Is 2 BHK Carpet Area?
There is no set carpet area for a 2 BHK as defined by the authorities, a standard 2 BHK’s carpet area can range from 300 to 700 sq ft. A premium 2 BHK flat can have carpet area ranging from 800 to 1200 sq ft.
Calculation of 2 BHK Carpet Area
2 Bedrooms
Each Bedroom Area: 9 x 15 sq. ft = 135 sq. ft
2 Bedroom Area: 135 x 2 = 270 sq ft
Kitchen
Area: 9 x 6 sq. ft = 54 sq ft
2 Toilets
Each Toilet: 6 x 6 sq ft -= 36 sq. ft
2 Toilet Area: 36 x 2 = 72 sq ft
Living Room
Area: 10 x 16 sq ft = 160 sq ft
Pooja Room
Area: 3.5 x 4.5 sq. ft = 16 sq ft
Circulation Area (Passage Area) = 10 % or 40 sq. ft
2 BHK Carpet Area Total: 612 sq. ft
Once you have added everything up you will notice, the total carpet area of a 2 BHK flat is 612 sq. ft.
For the built up area of this 2 BHK flat, 20% more should be added as the area of the wall. Hence, the total built up area of 2 BHK flats would be 612 sq. ft x 1.2 = 734.4 sq ft.
Important Things About The Carpet Area
When you search for a home and check the carpet area, keep these things in mind.
- A builder must include the carpet area in the sales deed, marketing brochures and sales agreements.
- You must check the carpet area promised and the actual carpet area and if any discrepancies are found then the specific amount has to be refunded.
Important Things About Built up Area
- Built up area has become the main unit to consider while determining the actual area being used in an apartment.
- An estimated value of the carpet area can be determined knowing the built up area.
Does Carpet Area Include Balcony?
No, the carpet area of a property does not include balcony. Carpet area is typically a space where a carpet can be laid excluding balconies, terraces, and other common areas and walls.
What Is RERA Carpet Area?
RERA carpet area is the floor area of an apartment which is net usable which excludes areas under service shafts, external walls, verandah area or exclusive balcony, exclusive open terrace but includes the areas covered by internal walls used for partition in an apartment.
What is Super Built up Area?
Super built up area includes the carpet area with balconies, terrace, area occupied by shared construction like lifts, stairs etc and area occupied by walls. In some instances, super built up area also includes amenities like garden, pool and clubhouse. Builders usually use the loading factor on carpet area to reach to the super built up area.
According to RERA, the carpet area, built up area and the share of common area together is defined as the super built up area.
How To Calculate Super Built up Area?
The super buit up area can be calculated through the formula-
Super built up area = Built up area + common areas or built up area + loading factor
What Is The Loading Factor?
The loading factor varies for both carpet areas and super built up areas. In general, 1.30 loading factor is considered sufficient.
The Formula To Calculate Loading Factor
The formula to calculate loading factor is
Super built up area = Carpet area x (1 + Loading factor)
What Is Considered In The Super Built up Area?
The super built up area consists of the following –
- Built up area of the flat
- Pipe
- Lifts
- Lobby
- Swimming pool
- Clubhouses
- Gymnasium
- Air ducts
- Staircases
- Lobby
- Event hall if any
Differences Between Carpet area, Built up area And Super Built up Area
| Areas | Carpet Area | Built up area | Super built up area |
| Bedroom | Yes | Yes | Yes |
| Living room | Yes | Yes | Yes |
| Kitchen | Yes | Yes | Yes |
| Dining room | Yes | Yes | Yes |
| Pooja room | Yes | Yes | Yes |
| Bathroom | Yes | Yes | Yes |
| Balcony | No | Yes | Yes |
| Study room | Yes | Yes | Yes |
| Utility areas | No | Yes | Yes |
| Staircase outside the house | No | Yes | Yes |
| Staircase inside the house | Yes | Yes | Yes |
| Verandah | No | Yes | Yes |
| Terrace | No | Yes | Yes |
| Lobby | No | No | Yes |
| Swimming pool | No | No | Yes |
| Garden | No | No | Yes |
Super Built Up Area, Built Up Area & Carpet Area Images
FAQ
| How is carpet area calculated?
The carpet area is calculated from the formula – Carpet area = Area of bedroom+ living room+ balconies+ toilets – inner wall thickness. |
| How is built up area calculated?
Built up area is calculated from the formula – Built up area = Carpet area + area of walls + area of balcony |
| How is super built up area calculated?
The super built up area is calculated from the formula – Super built up area = Built up area + common areas or built up area + loading factor. |
| Is common area included in carpet or built up area?
No, common areas like staircases, lobby and lifts are a part of super built up area and not carpet area or built up area. |
| What is the difference between carpet area and built up area?
The built up area is 10 to 20% larger than the carpet area depending on wall thickness, balconies and overall design. |
