Insights into RERA carpet area and Built-Up Space

rera carpet area

What Is a Carpet Area?

The Carpet Area refers to the space within a property that can be covered by a carpet or used for placing furniture. It represents the actual usable area, excluding walls, balconies, and common areas. Measured from the inner walls, it is determined by multiplying the length and width of each room.

What Is RERA Carpet Area?

The RERA Carpet Area, as stipulated by the Real Estate (Regulation and Development) Act, refers to the actual usable area within a property as defined and disclosed by the developer. This measurement excludes the space taken up by walls, balconies, and common areas, providing a precise representation of the living space available to the buyer.

The significance of the RERA Carpet Area lies in its legal recognition and specificity. Under the RERA Act, developers are required to accurately disclose the carpet area of each unit, ensuring transparency and fair dealings in real estate transactions. This legal recognition serves to protect the interests of homebuyers by providing them with reliable information regarding the actual size of the property they are purchasing. Additionally, the RERA Carpet Area plays a crucial role in determining the cost of a property, serving as a fundamental metric in real estate valuation and pricing strategies.

Impact of RERA Carpet Area

The impact of the RERA Carpet Area is profound, significantly influencing buyers’ understanding, pricing, and transparency in real estate transactions. RERA’s definition of the carpet area provides buyers with a clear and standardized metric to assess the actual usable space within a property, excluding non-usable areas like walls and common spaces. This clarity enhances buyers’ understanding of the space they are purchasing, enabling them to make more informed decisions. 

Moreover, the RERA Carpet Area plays a crucial role in pricing strategies. Since it represents the actual living space available to the buyer, developers and sellers must transparently disclose this information, thereby ensuring fair pricing based on the property’s true size and value. This fosters transparency and trust in real estate transactions, mitigating the risk of misleading marketing tactics and hidden costs. 

Furthermore, RERA’s emphasis on defining and disclosing the carpet area promotes transparency in the real estate market. By mandating accurate and uniform measurement standards, RERA enhances transparency and accountability among developers, leading to greater confidence and satisfaction among buyers.

What is the difference between RERA carpet and carpet area?

The key disparity between RERA Carpet Area and conventional Carpet Area lies in their treatment of internal partition wall thickness. RERA Carpet Area adheres to legal standards by including this thickness, ensuring a more accurate representation of usable space.

 In contrast, traditional Carpet Area, rooted in conventional understanding, typically excludes internal partition wall thickness.

As a result, there can be approximately a 5% difference between the two measurements. This distinction underscores the importance of legal compliance and transparency in real estate transactions facilitated by the implementation of RERA regulations.

Difference Between Saleable Area and RERA Carpet Area

The main difference between Saleable Area and RERA Carpet Area lies in their scope of measurement. Saleable Area encompasses not only the usable living space within a property but also includes common areas such as corridors, staircases, lobbies, and amenities like swimming pools or gyms. This broader measurement is used by developers to calculate the total area for marketing and pricing purposes. 

On the other hand, RERA Carpet Area strictly focuses on the usable living space within the property, excluding any common areas or spaces not directly usable by the buyer. It provides a more precise representation of the actual space available for occupancy. This standardized measurement mandated by RERA ensures transparency and fairness in real estate transactions by enabling buyers to accurately assess the size and value of the living space they are purchasing, without including any extraneous or non-usable areas.

What Is Super Built-Up Area & Built-Up Area?

Once grasping the meanings of carpet area, built-up area, and super built-up area, the primary distinction among them lies in their coverage. Carpet Area represents the usable space, while Built-up Area encompasses this space along with the area occupied by walls and other structures. Super Built-up Area extends further to include common areas. Property cost is typically based on the Super Built-up Area. Hence, discerning these area types is crucial for accurately determining property costs.

Difference Between The Carpet Area, Built-Up Area & Super Built-Up Area

Carpet Area refers to the usable space within a property, excluding common areas and structural components. It represents the true living space for buyers.

Super Built-Up Area includes the Carpet Area and a portion of common areas such as corridors and amenities.

Carpet Area is calculated by considering internal dimensions, excluding walls and non-usable spaces. 

To Calculate Carpet Area:

Carpet Area = Area of rooms + Balconies + Toilets – Thickness of inner walls. This formula helps determine the actual usable area within the property. 

Table for better understanding of the differences 

RERA Carpet areaRERA Carpet Area is the usable space within a property as per regulations, excluding external walls, terrace, balcony, verandah, plus internal partition wall areas.
Carpet areaCarpet area refers to the actual usable space within a property, excluding walls and common areas, providing an accurate measurement of living space.
Saleable areaSaleable area encompasses the usable space within a property along with a proportionate share of common areas such as corridors and amenities, providing a total area for marketing and pricing purposes.
Built up areaBuilt-up area encompasses the carpet area along with the space occupied by walls and structural elements within a property, providing a comprehensive measurement of enclosed space.
Super built up areaSuper built-up area includes the saleable area of a property along with a proportionate share of common areas such as corridors, lobbies, and amenities.

How is RERA carpet area calculated?

According to the RERA Act of 2016, the formula for RERA Carpet Area is: RERA Carpet Area = Net Usable Area of the Apartment (excluding external walls, terrace, balcony, and verandah) + Internal Partition Wall Areas. There exists a 5% variation between the General Carpet Area and the RERA Carpet Area.

Step-by-step Guide on Measuring Carpet Area

  • Begin by using a laser measure to ascertain the length and width of each room.
  • Multiply these measurements to determine the area of each room.
  • Measure the apartment’s dimensions to include the thickness of internal walls.
  • Calculate the combined footprint of all internal walls.
  • Add the areas of all rooms to the total footprint of internal walls to obtain the overall carpet area.
  • Ensure balconies, terraces, and external walls are excluded from this calculation.

Some salient points that are brought about in RERA

  • Developers must adhere to the plan without changes, preventing an increase in project costs and ensuring cost increment isn’t passed on to buyers.
  • The law mandates timely completion of realty projects, with penalties imposed on developers for delays.
  • Registration is mandatory for commercial and residential projects exceeding 500 square meters or comprising eight apartments.
  • Each phase of an apartment project requires separate registration as per the new law.
  • States must establish a State Real Estate Regulatory Authority for grievance redressal.
  • Failure to register a property incurs penalties up to 10% of the project cost and possible imprisonment for repeated violations.
  • Developers must deposit 70% of funds collected from buyers into a separate escrow account to cover construction costs and prevent fund diversion.


Which of these areas is considered to be the most accurate representation of a property’s size?

The most precise measurement of a property’s size is its usable carpet area, as it solely accounts for the space available within the property’s walls.

Which of these areas is used for calculating property taxes and other charges?

The built-up area is typically used for calculating property taxes and other charges, as it includes all enclosed spaces within the property, including walls and structural elements.

What is the Usable Carpet Area?

The usable carpet area refers to the space within a property’s walls that can be utilized, excluding non-usable areas such as walls and common spaces.

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