Calculate the built-up area of your flat from carpet area, factoring in wall thickness, balconies, and utility spaces.
Outer/inner wall thickness, columns, and balcony/verandah space (standard is 10%-20%).
The **Carpet Area** is the net usable space where you can literally spread a carpet. It does not include the thickness of internal or external walls.
The **Built-Up Area** (also known as Plinth Area) includes the Carpet Area plus the thickness of walls, columns, private balcony spaces, and utility ducts.
Built-Up Area = Carpet Area / (1 -
Wall & Balcony Share %)
Usually, walls and private balconies account
for approximately 10% to 20% of the flat's total built-up footprint.
Load common net carpet sizes to calculate the required built space:
Built-Up Area adds the thickness of walls and any balcony space to the Carpet Area, representing a unit's full physical footprint. Since most listings and price quotes reference Bu...
Built-up area provides a more complete view of a property than carpet area alone because it includes walls and exclusive structural spaces. It is commonly used when estimating construction costs and property valuations.
Many developers quote property prices based on built-up area. Understanding this measurement helps buyers compare projects more accurately and determine the effective cost per square foot of usable space.
Architects, engineers, and contractors often use built-up area when estimating material requirements, labor costs, and project budgets. It serves as an important benchmark during planning and execution.
Two homes with the same built-up area may offer different amounts of usable space depending on wall thickness, balcony size, and layout efficiency. Always compare multiple area measurements before making a purchase decision.
Quick answers about how this tool works.
Built-Up Area is calculated by adding the area covered by walls and balconies (typically 10% to 20%) to the Carpet Area. The formula is: Built-Up Area = Carpet Area / (1 - Wall & Balcony Share %).
Carpet Area is the net usable space inside the property where you can lay a carpet (excluding walls). Built-Up Area includes the Carpet Area plus the space occupied by the thickness of the walls, columns, balconies, and private utility shafts.
Built-up area = Carpet Area + Balcony Area + Wall Thickness. Wall thickness typically accounts for 10% to 15% of the total built-up space.
In most real estate transactions, the price is based on "super built-up area" (which includes common areas). Built-up area measures your private unit boundary.
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