What is Carpet Area, Built-Up Area & Super Built-Up Area?

If you've ever been confused by the different area terms in real estate, you're not alone. Understanding the difference between carpet area, built-up area, and super built-up area is key to knowing what you're actually paying for when buying a home in Mumbai. Let’s simplify it:

11/24/20251 min read

1. Carpet Area

This is the actual usable area within the walls of your flat—the space where you can lay a carpet. It includes bedrooms, living/dining, kitchen, and bathrooms.

Does NOT include:

  • External walls

  • Balcony

  • Common areas

Why it matters: Under RERA, all flats must be sold based on carpet area only, making pricing more transparent.

For example, a 2BHK in Chembur might offer 650 sq. ft. of carpet area.

2. Built-Up Area

Built-up area = Carpet Area + Walls + Balcony + Utility Spaces

It gives you a slightly inflated picture of the flat size and can be 10–25% more than the carpet area.

Built-up area includes:

  • Internal & external walls

  • Dry balconies

  • Flower beds (sometimes)

Builders may still quote this in brochures, so clarify.

3. Super Built-Up Area

Super built-up = Built-Up Area + Proportionate share of common areas

This includes your share of:

  • Lobbies

  • Staircases

  • Elevators

  • Clubhouse and amenities

Common in older or pre-RERA listings; often used to inflate price per sq. ft.

How They Compare (Example)

Let’s say a 2BHK flat in Chembur has:

  • Carpet Area: 650 sq. ft.

  • Built-Up Area: 780 sq. ft.

  • Super Built-Up Area: 950 sq. ft.

If the cost per sq. ft. is ₹20,000:

  • On Carpet: ₹13 Lakhs

  • On Built-Up: ₹15.6 Lakhs

  • On Super Built-Up: ₹19 Lakhs

Always insist on knowing the carpet area to compare apples to apples.

Conclusion

The area metric used can drastically affect your price and perception of the flat size. Always focus on the carpet area—the real space you’ll live in.

At Chembur Property, we provide full transparency with carpet area, price per sq. ft., and RERA documents, so you know exactly what you're paying for. Whether you’re buying in Chembur, Ghatkopar, or Wadala, we’ve got you covered!