Basic Concepts

What is Carpet Area?

Carpet Area is the effective area available for use within an apartment, excluding the area occupied by the walls. It is measured from wall to wall within the apartment.

What is Built-up Area / Plinth Area?

Built-up area / Plinth Area are the entire area occupied by the apartment, including the area occupied by the internal and external walls of the apartment. Usually it is 10% to 20% more than the Carpet Area.

What is Super Built-up Area?

Super Built-up Area is the Built-up Area plus the proportional share of the common areas like corridors, lift wells, staircase, community halls, security/servant quarters, etc.


Undivided Share is the part of the land which is associated to an individual apartment and registered in the name of the apartment's owner. This share of land has no specific boundaries within the total extent of the land on which the apartment is built. Each and every flat in the apartment complex will have an associated UDS. The sum of all the UDS will be equal to the total land area of the apartment.

UDS = Individual Apartment's super built-up area
Sum of all Apartments' super built-up area
x Total Land Area

If the total plot size is one ground (2400sq.ft.) and there are four apartments of different sizes, say 700 sqft, 800 sqft, 900 sqft and 1000 sqft, then the UDS of each apartment would be.

UDS 1 = 700
(700 + 800 + 900 + 1000)
x 2400
UDS 1 = (700 / 3400) x 2400 = 494.117 sqft
UDS 2 = (800 / 3400) x 2400 = 564.705 sqft
UDS 3 = (900 / 3400) x 2400 = 635.294 sqft
UDS 4 = (1000 / 3400) x 2400 = 705.882 sqft

Patta :

When a buyer decides to purchase a land, one of the main documents to check is patta. This document is a proof of ownership as found in the revenue records of the Government. Even though Patta is not offered for apartments and houses, the land which was used to construct the building must have a valid Patta. Patta also describes whether the owner has paid the taxes or not.

Chitta :

Patta is a proof of ownership and it does not provide the exact details of the land. The buyer has to go to the VAO’s office and furnish a copy of the updated 'A' Register (with the buyer's name updated) and get the latest copy of the Chitta and Adangal. These copies describes details of the tenants who cultivated the land.

The chitta contains the following:

Owner’s name and the Patta number

Survey number with subdivision

Village, taluk & District


The Adangal records contain information such as

Survey number, Wise holdings & Extent of field

Duration of tenancy

Details of 1st & 2nd crop

Month and date of harvest

Approximate yield of crops

State on ground particulars

Encumbrance Certificate

Encumbrance Certificate describes whether that the property is free from any monetary and legal liabilities or not. E.C is an assurance that the property is clear of any legal dues. The EC will list all transactions involving the land till date which includes loans, collateral or legal issues. E.C. is applied at the sub register office for a period of 15-20yrs.

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