Carpet Area Measurement & RERA Certificate

Overview

Know the area you are paying for

Flats are sold on carpet area, and the agreement for sale states it. Whether the flat delivered matches that figure can only be confirmed by measuring it — and the difference matters, because every square foot is priced.

We measure each room on site, draw the flat to scale in drafting software and calculate its carpet area as the Real Estate (Regulation and Development) Act, 2016 defines it. Balconies, verandahs and terraces are measured and stated separately, so the result can be compared line by line with the agreement or the approved plan.

The work is done by our engineers and certified by a Chartered Engineer (India).

Purposes

When you need a measurement

Possession of a new flat
Check the carpet area delivered against the area in your agreement for sale before you take possession.
Possession of a new flat
- Measured on site before you take possession
- Compared with the carpet area in the agreement for sale
- Balconies and terraces stated separately
- Shows whether the agreement's price adjustment may apply
Buying a resale flat
Confirm the area you are paying for, when the seller's documents state it differently or not at all.
Buying a resale flat
- Measured on site before you agree the price
- Useful where documents state only built-up or super built-up area
- Compared with the agreement or approved plan, where provided
- Certificate signed by a Chartered Engineer
Society redevelopment
Measured carpet area of every member's flat — the basis for the new areas offered by the developer.
Society redevelopment
- Every member's flat measured on site
- Area statement for the whole building
- Each member's existing carpet area on record
- Uses the society's member list and flat details
Disputes & complaints
An independent measured report for RERA complaints, consumer cases, arbitration and civil suits.
Disputes & complaints
- Measured independently by our engineers
- Measured plan with a room-by-room area statement
- Comparison with the area in the agreement
- Site photographs and a Chartered Engineer's certificate
Bank loans
A certified area for lenders, where the documents are unclear or conflicting.
Bank loans
- Carpet area as defined under RERA
- For files where the agreement and plan differ
- Measured plan and certificate for the lender
- Site photographs with the report
Offices & shops
Carpet area of commercial premises for purchase, leasing and rent fixed per square foot.
Offices & shops
- Measured with the same method as flats
- A basis for rent fixed per square foot
- Area stated in sq m and sq ft
- Measured plan with each space's dimensions

Scope

What you receive

A measured plan of the premises, with room dimensions
Room-by-room area statement and the total carpet area under RERA
Balcony, verandah and terrace areas stated separately
Comparison with the area in your agreement or approved plan, where provided
A carpet area certificate signed by a Chartered Engineer
Site photographs

Checklist

Documents generally required

Agreement for sale or allotment letter
Approved plan or the developer's unit plan
For redevelopment: the society's member list and flat details
Access to the premises on the day of measurement

Methodology

How we measure

Four steps, each checking the one before.

01
Laser measurement
Every room, passage and opening is measured with a laser distance meter (distometer).
Laser measurement
- Internal length and breadth of every space
- Taken between the finished inner faces of the walls
- Balconies, verandahs and terraces measured too
- Site photographs taken on the same visit
02
Tape verification
Key dimensions are checked again by manual tape, so an error in one reading doesn't carry through.
Tape verification
- Manual tape check of key dimensions
- Catches a misread or obstructed laser reading
- Independent of the first set of readings
03
Measured plan
The flat is drawn to scale in drafting software from the measurements, with each room's dimensions.
Measured plan
- Drawn to scale from the site measurements
- Each room's dimensions marked on the plan
- Irregular rooms split into rectangles and triangles
- Part of the report you receive
04
RERA carpet area
Carpet area is calculated from the plan as defined under RERA, with balconies, verandahs and terraces shown separately.
RERA carpet area
- Net usable floor area as RERA 2016 defines it
- Includes the area under internal partition walls
- Excludes external walls and service shafts
- Balconies, verandahs and open terraces stated separately

Calculation

How carpet area is calculated

Carpet area is the net usable floor area inside the flat, as RERA defines it. This is how we arrive at it from the measurements.

Counted in carpet area

Rooms — living room, bedrooms, kitchen
Bathrooms, WCs, passages and internal stores
The floor area under internal partition walls

Not counted

External walls of the flat
Service shafts and ducts
Exclusive balconies and verandahs
Exclusive open terraces
Common areas — lobby, staircase, lift (part of super built-up area)

Step 1
Measure each space
Internal length and breadth of every room, passage and store, between the finished inner faces of the walls.
Step 2
Area of each space
Length × breadth for a rectangular room; an irregular room is split into rectangles and triangles.
Step 3
Add partition walls
Total length of the internal partition walls × their thickness (e.g. 115 mm brick or 150 mm block).
Step 4
Total and convert
The sum is the carpet area in sq m; × 10.764 gives sq ft. Balconies and terraces are calculated the same way and stated separately.

Worked example: a one-bedroom flat

Illustrative figures for a typical 1 BHK — not from a client's flat.

Space	Internal size (m)	Area (sq m)	Area (sq ft)
Living room	3.20 × 4.50	14.40	155.0
Bedroom	3.00 × 3.60	10.80	116.3
Kitchen	2.40 × 3.00	7.20	77.5
Bathroom	1.50 × 2.10	3.15	33.9
WC	1.00 × 1.20	1.20	12.9
Passage	1.00 × 2.00	2.00	21.5
Internal partition walls	12.00 long × 0.115 thick	1.38	14.9
Carpet area (RERA)		40.13	432.0
Stated separately — not in carpet area
Balcony	1.20 × 3.00	3.60	38.8

If this flat's agreement for sale stated 440 sq ft, the measured carpet area of 432 sq ft would be 8 sq ft (1.8%) less — the kind of difference a measurement is meant to show. 1 sq m = 10.764 sq ft.

Our process

How it works

Step 01
Request
Tell us the premises, its location and why you need the measurement.
Step 02
Documents
Share the agreement or plan, so the result can be compared with the stated area.
Step 03
Site visit
Our engineers measure the premises and take photographs.
Step 04
Plan & calculation
The measured plan is drawn and the RERA carpet area calculated.
Step 05
Report & certificate
You receive the plan, the area statement and a Chartered Engineer's certificate.

Who does the work

Our team for this service

Chartered Engineers who certify carpet area.

FAQ

Frequently asked questions

Can't find the answer? Ask us directly — we're happy to explain how an assignment would work.

All questions

What is carpet area under RERA?

Under the Real Estate (Regulation and Development) Act, 2016, carpet area is the net usable floor area of an apartment, excluding external walls, service shafts, exclusive balconies or verandahs and exclusive open terraces, but including internal partition walls.

How is carpet area different from built-up and super built-up area?

Built-up area adds the thickness of the walls (and often balconies) to the usable area; super built-up area also adds a share of common areas such as lobbies and staircases. Only carpet area is defined in RERA, and flats are sold on it.

Are balconies and terraces part of the carpet area?

No. Exclusive balconies, verandahs and open terraces are excluded from carpet area under RERA. We measure them and state them separately.

Why measure if the agreement already states the carpet area?

To confirm that what is delivered matches what was agreed. Agreements usually provide for the price to be adjusted if the final area differs beyond a stated limit; a measurement tells you whether that applies.

Can you measure all the flats in a building for redevelopment?

Yes. We measure each unit and prepare an area statement for the whole building, so every member's existing carpet area is on record.

Related services

Carpet Area Measurement

Know the area you are paying for

When you need a measurement

Possession of a new flat

Buying a resale flat

Society redevelopment

Disputes & complaints

Bank loans

Offices & shops

What you receive

Documents generally required

How we measure

Laser measurement

Tape verification

Measured plan

RERA carpet area