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RERA Carpet Area Calculator — Loading

Calculate true usable carpet area from developer super built-up area and uncover actual loading percentage and true rate per sq.ft under RERA rules.

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RERA Transparency & Space Decrypter

RERA Carpet Area & Real Usable Cost Calculator

Builders advertise Super Built-up Area (SBA), but you only live in the **Usable Carpet Area**. Calculate your true usable space, common area loading percentage, and real cost per square foot.

Enter Flat Specifications

As per builder brochure
1650sq.ft
600 sqft (1 BHK)1,650 sqft (3 BHK)4,500 sqft (Duplex/Villa)
₹6,800/sqft
₹3,500/sqft (Affordable)₹8,500/sqft (Kokapet/ORR)₹20,000/sqft (Ultra Luxury)
27%
18% (Stand-alone flat)25-28% (Gated standard)35%+ (High rise luxury)
Common Gated Community Presets:
What RERA Mandates:

Under RERA, carpet area is the net usable floor area of an apartment, excluding the area covered by external walls, common corridors, and lift shafts. Exclusive balconies and verandahs are calculated separately.

Decrypted Breakdown

True Space & Cost Analysis

High Efficiency (Grade A)
RERA Carpet Area
1,299sq.ft
79% of saleable area
Common Area Loading
351sq.ft
Corridors, lifts & amenities
Quoted Price (on SBA):₹6,800/sqft
Actual Cost per Usable Sqft:₹8,637/sqft
💡 **Reality Check:** For every 1 sq.ft of floor you actually walk on, you are paying **₹1837 extra** towards common loading.
Total Base Cost of Flat:₹1.12 Cr (₹1,12,20,000)
Value paid for Common Areas:₹23.87 Lakhs
Browse High-Efficiency Flats on 1flatAll 1flat.in listings show transparent RERA carpet areas with 0% inflated loading.
kokapet luxury gated flats•kollur high-rise gated flats

How to Use the Carpet Area Calculator

1. Enter Super Built-up Area

Input the brochure or quotation area mentioned by the builder (e.g. 1926 sq.ft).

2. Input Loading Percentage

Enter developer loading ratio (typically 24% to 28% for high-rises).

3. Inspect True Usable Living Space

View exact net carpet area and true effective rate per sq.ft of livable floor space.

Frequently Asked Questions

How to calculate usable carpet area from super built-up area under RERA?

Under RERA guidelines, Usable Carpet Area = Super Built-up Area ÷ (1 + Loading Percentage / 100). For example, a 1,650 sq.ft flat with 27% loading has an actual usable carpet area of approximately 1,299 sq.ft.

What is an ideal loading percentage in Hyderabad gated communities?

In premium high-rise gated communities in West Hyderabad (Tellapur, Kokapet, Financial District), loading typically ranges between 24% and 29% due to extensive double-height clubhouses, 4-tier basement parking, and wide corridors.