THE
JHARKHAND GAZETTE
EXTRAORDINARY
PUBLISHED BY AUTHORITY
26 FALGUN, 1942 (S)
RANCHI, WEDNESDAY, 17TH MARCH, 2021
URBAN DEVELOPMENT & HOUSING DEPARTMENT
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NOTIFICATION
16TH MARCH, 2021
No.-7/न०व०/अध/स० सो०/102/2013/1092-- In exercise of the powers conferred
under clause-89 of the Jharkhand Building Bye-laws, 2016, as amended, the Government of
Jharkhand do hereby notify the Jharkhand Building (VIIIth Amendment) Bye-laws, 2021.
Sl.
Chapter
Clause
Sub-
clause
Provision
Amended Provision
1
IV
35
Note- (3)
No high rise building (building with a height
above 16.4 meters) shall be allowed on a plot
size less than 1000 sqm.
Deleted
2
IV
42
42.5
Parapet walls and handrails provided on the
edges of roof terraces, balcony, verandah, etc
shall not be less than 1.0 m and not more than
1.2 m in height from the finished floor level.
Addendum:-
42.5.1
Parapet of a suitable height may
be constructed to hide installation like water
tank and for other such purpose.
3
IV
46
46.4
No projected balcony shall be allowed, on
setback less than 2.0m. Projected balcony shall
be allowed with a width of 0.9m., where the
setback is between 2.0m to 2.5m. For setback
more than 2.5m projected balcony shall be
No projected balcony shall be allowed, on
setback less than 2.0m. Projected balcony
shall be allowed with a width of 0.9m.,
where the setback is between 2.0m to 2.5m.
For setback more than 2.5m projected
No. 193
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Jharkhand Gazette (Extraordinary), Wednesday, 17th March, 2021
allowed with a width of 1.2 m. Projected balcony
shall only be allowed on the second floor and
above floors. Balcony may be allowed on the
first floor subject to condition that the side and
rear setback of the building is more than 4.5 m.
& 4.5m. clear driveway is available for Fire
tender movement. 50% of the area on the
projected balcony shall be taken into account for
calculation of the Floor Area Ratio. No balcony
should be provided with fixed grill as it works as
fire refuse areas.
600mm. wide projection in setback is
permitted as cupboards and it is to be counted in
calculating FAR (Floor Area Ratio).
balcony shall be allowed with a width of 1.2
m.
In addition to single block, for
multiple blocks in the campus,projected
balcony shall only be allowed on the second
floor and above floors. Balcony may be
allowed on the first floor subject to
condition that the side and rear setback of
the building is more than 4.5 m. & 4.5m.
respectively clear driveway is available for
Fire tender movement.
50% of the area on the projected
balcony shall be taken into account for
calculation of the Floor Area Ratio. No
balcony should be provided with fixed grill
as it works as fire refuse areas.
600mm.
wide
projection
in
setback is permitted as cupboards and it is to
be counted in calculating FAR (Floor Area
Ratio).
4
IV
48
48.4
Individual residential and small commercial
buildings, plot size up to 750sqm. may have one
basement.
However
maximum
two
floor
basements/cellars may be permitted to be
constructed for plot size above 750sqm. leaving
the prescribed set back/open space applicable to
the building. Further, in case of apartment/group
housing/ commercial/buildings and basements
may be allowed to be constructed under the
entire plot area leaving minimum of 3m. space
from the boundary in front, sides and rear of the
premises subject to the following;
Individual residential and small commercial
buildings, plot size up to 750sqm. may have
one basement. However maximum two floor
basements/cellars may be permitted to be
constructed for plot size above 750sqm.
leaving the prescribed set back/open space
applicable to the building. Further, in case of
apartment/group
housing/
commercial/buildings and basements may
be allowed to be constructed under the entire
plot area leaving clear 2m. (minimum)
margin for single basement and 3m.
(minimum) for double basement space
from the boundary in front, sides and rear of
the premises subject to the following;
5
IV
51
Addendum:-
51.2
The provisions for rainwater harvesting in various building categories as below:-
Sl.
Category / Use
Provisions to be Made
Other Conditions
(a)
(b)
(c)
(d)
1
Residential Plotted Housing
New Proposals
Construction
of
RainwaterHarvesting
Structure
Emphasis on both storage
andreuse
2
Housing Projects
New Proposals
i. Construction
of
RainwaterHarvesting
Structure
ii. Concrete
paving
to
beavoided
and
permeablematerials to be
used for allopen parking
spaces
Indicate the system of
Storm Water Drainage,
Rainwater
Harvesting
System
and
Recharge
Well
3
Public and Semi Public Buildings
Jharkhand Gazette (Extraordinary), Wednesday, 17th March, 2021
3
All Proposals
i. Shall
have
RainwaterHarvesting
System andStorage
ii. Shall have Recharge pits
Emphasis on both storage
andreuse
4
Commercial / Mixed Use
All Proposals
i. Construction
of
Rainwater
Harvesting
System
ii. Soft
landscape
provisionsand
open
spaces
withpercolation
pits.
iii. Common
Treatment
planto be part of the
integrateddevelopment
Indicate the system of
Storm
Water
Drainage,
RainwaterHarvesting
System
andRecharge
Well.
Emphasis on both storage
andreuse.
5
Industrial
All Proposals
i. Construction
of
RainwaterHarvesting
System
ii. Soft
landscape
provisionsand
open
spaces
withpercolation
pits.
iii. Use
of
abandoned
borewells for recharging
ofground water
iv. Common Treatment plan
tobe
part
of
the
integrateddevelopment
Indicate the system of
StormWater
Drainage,
RainwaterHarvesting
System and
Recharge Well.
Provision to be made not
toinject
contaminated
water
into
recharge
structures
inindustrial
areas.
Care to be taken to keep
suchstructures away from
sewerlines, septic tanks,
soak
pits,landfill
and
other
sources
ofcontamination.
51.3
Methods:-
The methods of ground water recharge mainly are:
51.3.1
Urban Areas - Roof Top Rain Water /Storm runoff harvesting
through
51.3.1.1 Recharge Pit
51.3.1.2 Recharge Trench
51.3.1.3 Tube well
51.3.1.4 Recharge Well
51.3.2
Rural Areas - Rain Water Harvesting through
51.3.2.1 Gully Plug
51.3.2.2 Contour Bund
51.3.2.3 Gabion Structure
51.3.2.4 Percolation tank
51.3.2.5 Check Dam/ Cement Plug/ Nala Bund
51.3.2.6 Recharge shaft
51.3.2.7 Dug well Recharge
51.3.2.8 Ground Water Dams
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Jharkhand Gazette (Extraordinary), Wednesday, 17th March, 2021
51.4
Techniques:-
Urban Area-In urban areas, rain water available from roof tops of buildings,
paved and unpaved areas goes waste. This water can be recharged to aquifer and can be
utilized gainfully at the time of need. The rain water harvesting system needs to be
designed in a way that it does not occupy large space for collection and recharge
system. A few techniques of roof top rain water harvesting in urban areas are described
below.
51.4.1
Roof Top Rain Water Harvesting Through Recharge Pit
51.4.1.1 In alluvial areas where permeable rocks are exposed on the
land surface or atvery shallow depth, roof top rain water
harvesting can be done through rechargepits.
51.4.1.2 The technique is suitable for buildings having a roof area of
100 sq. m and areconstructed for recharging the shallow
aquifers.
51.4.1.3 Recharge Pits may be of any shape and size and are
generally constructed 1 to 2mwide and 2 to 3m deep which
are back filled with boulders (5-20 cm), gravels (5-10mm)
and coarse sand (1.5-2mm) in graded form. Boulders at the
bottom, gravels inbetween and coarse sand at the top so
that the silt content that will come withrunoff will be
deposited on the top of the coarse sand layer and can easily
beremoved. For smaller roof area, pit may be filled with
broken bricks/ cobbles.
51.4.1.4 A mesh should be provided at the roof so that leaves or any
other solid waste /debris is prevented from entering the pit
and a de-silting /collection chamber mayalso be provided at
the ground to arrest the flow of finer particles to the
rechargepit.
51.4.1.5 The top layer of sand should be cleaned periodically to
maintain the recharge rate.
51.4.1.6 By-pass arrangement has to be provided before the
collection chamber to reject thefirst showers.
51.4.2
Roof Top Rain Water Harvesting Through Recharge Trench
51.4.2.1 Recharge trenches are suitable for buildings having roof
area of 200-300 sq.m. and where permeable strata are
available at shallow depths.
51.4.2.2 Trench may be 0.5 to 1 m wide, 1 to 1.5m deep and 10 to
20m long dependingupon the availability of water to
recharge.
51.4.2.3 These are back filled with boulders (5-20cm), gravel (5-
10mm) and coarsesand (1.5-2mm) in graded form –
boulders at the bottom, gravel in betweenand coarse sand at
the top so that the silt content that will come with
runoffwill be coarse sand at the top of the sand layer and
can easily be removed.
51.4.2.4 A mesh should be provided at the roof so that leaves or any
other solidwaste/debris is prevented from entering the
trenches and a de-silting/collectionchamber may also be
provided on ground to arrest the flow of finer particles
tothe trench.
51.4.2.5 By-pass arrangement be provided before the collection
chamber to reject the firstshowers.
51.4.2.6 The top layer of sand should be cleaned periodically to
maintain the recharge rate.
Jharkhand Gazette (Extraordinary), Wednesday, 17th March, 2021
5
51.4.3
Roof Top Rain Water Harvesting Through Existing Tubewells
51.4.3.1 In areas where the shallow aquifers have dried up and
existing tube wells aretapping deeper aquifer, roof to rain
water harvesting through existing tube wellcan be adopted
to recharge the deeper aquifers.
51.4.3.2 PVC pipes of 10cm dia are connected to roof drains to
collect rainwater. Thefirst roof runoff is let off through the
bottom of drainpipe. After closing thebottom pipe, the
rainwater of subsequent rain showers is taken through a T
toan online PVC filter. The filter may be provided before
water enters the tube wells.The filter is 1–1.2m in length
and is made up of PVC pipe. It’s diameter shouldvary
depending on the area of roof, 15cm if roof area is less than
150sq m and20cm if the roof area is more. The filter is
provided with a reducer of 6.25cm onboth the sides. Filter
is divided into three chambers by PVC screens so that
filtermaterial is not mixed up. The first chamber is filled up
with gravel (6-10mm),middle chamber with pebbles (12-
20mm) and last chamber with bigger pebbles(20-40mm).
51.4.3.3 If the roof area is more, a filter pit may be provided.
Rainwater from roofs istaken to collection/de-silting
chambers located on ground. These collectionchambers are
interconnected as well as connected to the filter pit through
pipeshaving a slope of 1:15. The filter pit may vary in
shape and size dependingupon available runoff and are
back-filled with graded material, boulder at thebottom,
gravel in the middle and sand at the top with varying
thickness (0.30-0.50m) and may be separated by screen.
The pit is divided into two chambers,filter material in one
chamber and other chamber is kept empty toaccommodate
excess filtered water and to monitor the quality of filtered
water.A connecting pipe with recharge well is provided at
the bottom of the pit forrecharging of filtered water through
well.
51.4.4
Roof Top Rain Water Harvesting Through Trench With
Recharge Well
51.4.4.1 In areas where the surface soil is impervious and large
quantities of roof wateror surface runoff is available within
a very short period of heavy rainfall, theuse of trench/ pits
is made to store the water in a filter media and
subsequentlyrecharge to ground water through specially
constructed recharge wells.
51.4.4.2 This technique is ideally suited for area where permeable
horizon is within3m below ground level.
51.4.4.3 Recharge well of 100-300 diameter is constructed to a depth
of at least 3 to 5mbelow the water level. Based on the
lithology of the area well assembly isdesigned with slotted
pipe against the shallow and deeper aquifer.
51.4.4.4 A lateral trench of 1.5 to 3m width and 10 to 30m length,
depending upon theavailability of water is constructed with
the recharge well in the centre.
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Jharkhand Gazette (Extraordinary), Wednesday, 17th March, 2021
51.4.4.5 The number of recharge wells in the trench can be decided
on the basis ofwater availability and local vertical
permeability of the rocks.
51.4.4.6 The trench is backfilled with boulders, gravels and coarse
sand to act as a filtermedia for the recharge wells.
51.4.4.7 If the aquifer is available at greater depth say more than
20m, a shallow shaft of2 to 5m diameter and 3-5m deep
may be constructed depending uponavailability of runoff.
Inside the shaft a recharge well of 100-300mmdia
isconstructed for recharging the available water to the
deeper aquifers. At thebottom of the shaft a filter media is
provided to avoid choking of rechargewell.
By the order of the Governor of Jharkhand
Vinay Kumar Choubey,
Secretary to Government
Urban Development & Housing Department.
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झारखड राजक य मुणालय
झारखड राजक य मुणालय, राँची वारा काशत एवं मुत
राँची वारा काशत एवं मुत,
झारखड गजट
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असाधारण)
) 193 -- 100