TDR and fungible FSI

TDR and fungible FSI

1. QUESTION 16
1. WHAT IS TDR?
Transfer of Development Rights (TDR) means making available certain amount of additional built up area
in lieu of the area relinquished or surrendered by the owner of the land, so that he can use extra built up
area either himself or transfer it to another in need of the extra built up area for an agreed sum of
money.

What is Fungible FSI?
The word fungible - describes something that acts as a replacement for something else. The municipal
corporation of Mumbai introduced this system to curb misuse of existing building regulations by
developers. Developers would build space over and above the allowable FSI by the means of some grey
areas in the building regulations. These grey areas centered around things that were free of FSI, or not
counted in FSI calculations, such as flower beds, services shafts, and balconies. In the fungible FSI
system, the allowable FSI on a plot is increased by 35%, with a maximum cap on the total construction
area, with no exemptions. This serves to reduce 'overbuilding' on plots by developers. The fungible FSI
seeks to act as a replacement for or a legalisation of the misuse of regulations, but with a clear
mathematical limit that should not be exceeded. As of 2015, fungible FSI is applicable to all plots in
Mumbai with the exception of those that fall under Coastal Regulation Zone (CRZ) limits.
ARCHITECTS ROLE
As an architect our role is advise the members of society how to use their tdr for eg. if the society has
extra unused fsi with them but due to height restrictions are unable use them so they can sell their fsi to a
developer who on his project has consumed the whole fsi but has a scope to use more fsi on site having
no height restriction with sum of rupees.
For fungible fsi
Initially flower beds, services shafts, and balconies were free of fsi but now due fungible fsi application
the developer has to pay for it 0.6 times the ready reckoner rate of that area but the builder can charge the
tenants the remaining 0.4 share thereby taking the money from the tenants as premium money for the
fungible fsi that he was bought, so the tenants have to educated for the same. Area calculation statement
& sanctioned drawing plan of the building should be part of the agreement .

2. QUESTION 17
33. Additional Floor Space Index which may be allowed in certain categories-DCR
10) Rehabilitation of slum dwellers through owners/developers/ cooperative housing societies:—For
redevelopment or restructuring of censused slums or such slums whose structures and in habilitants
whose names appear in the Legislative Assembly voters' list of 1985 by the owners/developers of the
land on which such slums are located or by Co-operative Housing Societies of such slum dwellers a total
floor space index of upto 2.5 may be granted in accordance with schemes to be approved by special
permission of the Commissioner in each case. Each scheme shall provide inter-alia the size of tenements
to be provided to the slum dwellers, the cost at which they are to be provided on the plot and additional
tenements which the owner/developer can provide to accommodate/rehabilitate slum dwellers/project
affected persons from other areas, etc. in accordance with the guidelines laid down
ARCHITECTS ROLE:
As an architect our role is to educate the slum people about the minimum habitable space area
requirements , minimum habitable height requirement comparing the same with the area that the
developer has provided them with; also with accordance to dcr their available rights. Also the concept of
cluster development can also be adopted.