Salient features of New Gazzette notifications for Residential Projects.
Category: MSB
Parameter: Side set back: For S+9 floors with building height 30m set back required as per old norms is
10m.
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As per the new norms the same for the above is 7m
Parameter: Premium FSI
This was not allowed in DTCP areas which are now enforced.
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Premium FSI over and above the normally allowable FSI shall be allowed in any case not
exceeding 0.5 for special building and group developments and not exceeding 1.0 for multistory
buildings in specific areas which may be notified on collection of at the rates as may be
prescribed with the approval of the government. The amount collected shall be kept in
appropriate account for utilizing it for infrastructure development in that area as may be decided
by the Government.
Parameter:
Plot Coverage (Residential)
Plot coverage as per old norms is 35%
Plot coverage as per new norms is 30%
Parameter: OSR (MSB)
As per old norms where the building proposed is residential building for accommodating multi family
dwelling units there shall also be provided with a common amenity open space. The Extent of this shall
be 10% of plot extent.
As per new norms OSR for the 2500sqm is nil
Above 2500sqm-10% of the area subject to a minimum dimension of 10m.
Parameter: Splay
Road width
Up to 7.2M
More than 7.2m up to
12m
More than 12m up to
30m
More than 30.5m
Minimum splay old
norms
1.5mx1.5m
3mx3m
4.5mx4.5m
6mx6m
As per new norms
Road width up to 10m
1.5mx1.5m
3mx3m for all road
widths above 10m
NIL
Parameter: Building line
Building line is introduced in new norms as below.
Road width
Building line
Below 9m
1.5m
9m
3.0m
12m
3.0m
15m
4.5m
18m
4.5m
24m
6.0m
30m
6.0m
Parameter: EWS plots along with MSB development.(New norms)
In cases where the extent of the site where residential or predominantly residential developments
proposed exceeds 10000sqm (1hectare) the developer shall reserve minimum 10% of the site area
(excluding roads if any handed over to the body) and provide housing thereon for lower income groups
with dwelling units not exceeding 45sqm in floor area each either within the site proposed for MSB
development or in a location within a radius of 5KM from the site under reference. The developer or
promoter or owner shall sell these small dwellings only for this purpose. No conversion or amalgamation
shall be permissible in these cases of lower income group dwellings.
Parameter: Institutional and commercial use within residential community (New norms)
In cases of residential developments exceeding 50dwelling units in primary residential use zone
,commercial and institutional uses not exceeding 10% of the floor area of the building at lower habitable
floor levels may be allowed (not for any industrial use) as incidental uses required for the occupants of
the remaining residential developments within the premises.
Spaces excluded from FSI and plot coverage computations.
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Areas covered by staircase rooms and lift rooms and passages there to above top most storey
,architectural features, Chimneys, Elevated tanks (Provided its height below the tank from the
floor does not exceed 1.5m)and water closets(area not exceeding 10sqm)
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Staircase and lift rooms and passages there to in the stilt parking floor.
Lift wells in all the floors.
Area of fire escape staircase and cantilever fire escape passages.
Area of basement floors/floors used for parking.
Area of stilt floor parking provided its clear height (Between lower floor and the bottom of roof
beam) does not exceed 3.0m and it is open on 3sides and used for parking.
Area of structures exclusively for accommodating machineries for WTP and ETP proposed with
clearance from TNPCB.
Areas covered by service ducts and garbage shafts.
Area of balcony and service verandah to an extent of 5% of each dwelling unit area in case of
residential buildings and 5% of room area in case of hotels and lodges.
Porches/Canopies/Porticos.
Service floors with height not exceeding 1.5m
The following services and incidental structures necessary to the principal use subject to a maximum of
10% of the total floor area.
a) Area of one office room not exceeding 15sqm for co operative housing society or apartment
/building owners association in each block.
b) Servant’s driver’s bath room and water closet (not exceeding 20sqm) for each block in cases of
special building, group development and multi storey building at ground floor/Stilt parking floor.
c) Gymnasium of 150sqm in floor area.
d) Area covered by
I.
Meter room in ground floor or parking floor.
II.
Air conditioning plant room in basement/Ground floor
III.
Electrical room in ground floor or stilt floor.
IV.
Watchmen or care taker room in ground floor/Stilt parking floor.
V.
Pump room in ground floor or stilt parking floor.
VI.
Generator room in basement floor or ground floor.
VII.
Lumber room in basement floor ground floor .
VIII.
Air handling units in all the floors.
IX.
Electrical/Switch gear room in all the floors.
X.
Area of one room in ground floor of residential and commercial multi storied building,
special building and group developments.