1. What is Built-up Area?

Built-up area refers to the total area covered by a building, including the thickness of walls, common areas, and other structural elements. It's calculated by dividing the carpet area (usable floor space) by the carpet ratio.

2. How Does the Calculator Work?

The calculator uses the built-up area formula:

Where:

• \( Carpet\_Area \) — Usable floor area (m²)
• \( Carpet\_Ratio \) — Ratio of carpet area to built-up area (typically 0.75)

Explanation: The formula calculates the total built-up area by accounting for the proportion of usable space versus total construction area.

3. Importance of Built-up Area Calculation

Details: Calculating built-up area is essential for real estate valuation, construction planning, property taxation, and understanding the efficiency of space utilization in a building.

4. Using the Calculator

Tips: Enter carpet area in square meters and the carpet ratio (typically 0.75). All values must be valid (carpet area > 0, carpet ratio between 0.01-1.00).

5. Frequently Asked Questions (FAQ)

Q1: What is the typical carpet ratio value?
A: The carpet ratio typically ranges from 0.70 to 0.85, with 0.75 being the most common value for residential properties.

Q2: How does built-up area differ from super built-up area?
A: Built-up area includes the carpet area plus wall thickness and utility areas, while super built-up area additionally includes common areas like lobbies, staircases, and amenities.

Q3: Why is the carpet ratio important?
A: The carpet ratio indicates the efficiency of space utilization - a higher ratio means more usable space relative to the total construction area.

Q4: Does built-up area include terraces and balconies?
A: Yes, built-up area typically includes all covered areas, including terraces and balconies, but at a reduced percentage (usually 50-75% of their actual area).

Q5: How accurate is this calculation for real estate purposes?
A: While this formula provides a good estimate, for precise real estate transactions, it's recommended to consult professional measurements and local regulations.