(1)
Ļ¯ೇಷ ªಾಜÍ ಪĦÎೆ
GOVERNMENT OF KARNATAKA
No. UDD/138/MYAP/2023 Karnataka Government Secretariat
Vikasa soudha,
Dr. B. R. Ambedkar Veedhi,
Bangalore, Dated: 21.02.2026.
NOTIFICATION-I
The draft of the following Bye-laws further to amend the Karnataka
Municipal Corporations Model Building Bye-Laws, 2017 which the
Government of Karnataka proposes to make in exercise of the powers
conferred by section 426, sub-section (1) of section 428 and clause (b) of sub-
section (1) of section 508 of the Karnataka Municipal Corporations Act, 1976
(Karnataka Act 14 of 1977) was published in the State Gazette Vide
Notification No.UDD/138/MYAP/2023 in Part 4A of the Karnataka Gazette
inviting objections and suggestions from all persons likely to be affected
thereby within thirty days from the date of its publications in the Official
Gazette.
And whereas the said Gazette was made available to public on 25th
April 2025 and no objections and suggestions have been received.
Now therefore, in exercise of powers conferred under section 426, sub-
section (1) of section 428 and clause (b) of sub-section (1) of section 508 of
the Karnataka Municipal Corporations Act, 1976 (Karnataka Act 14 of 1977)
the State Government notifies the following Bye-Laws namely.
MODEL BUILDING BYE-LAWS
1. Title and commencement:- (1) These bye laws may be called the
Karnataka Municipal Corporations Model Building (Amendment) Bye-
Laws, 2026.
¨sÁUÀ – 4ಎ
Part – IVA
, 21
, 2026
, 02
)
BENGALURU, SATURDAY, 21, FEBRUARY, 2026 ( PHALGUNA , 02, SHAKAVARSHA, 1947)
. 169
No. 169
2
(2) They shall come into force from the date of their final publication in
the official Gazette
2. Amendment of Bye-law 15:- In the Karnataka Municipal Corporations
Model Building Bye-Laws, 2017, in bye-law15,-
(i)
In clause 15.1.2, the following shall be inserted at the end, namely:-
“15.1.2.A Application of sewage management provisions: (1) The
Provisions of sewage management shall be applicable for projects
involving construction of buildings, having built up area > 5000 sqm and
to new building projects and expansion or repair of the old or existing
buildings.
(2) The provisions shall not substitute any approvals or consent or
permissions etc., required to be obtained under any other Act or Rules or
regulations or bye-laws or notification etc made there under. The project
Authority shall continue to be under obligation to obtain approvals or
clearances under any other Acts or Regulations or Status of the Central
or State Government or their designated authorities or development
authority or Local authorities or Bodies as applicable to the project
including, in respect of site Location for parameters such as low lying
area, natural drainage, and for environment sensitivity i.e., proximity or
within the Eco Sensitive Area, Zonal Master Plan, Wildlife Sanctuary,
National Park, Coastal Regulation Zone areas, Biosphere Reserves,
Critically Polluted Area, hill areas or disaster prone areas.
(3) In case of any inconsistency with any other rules, regulations, bye-
laws, etc., the provisions that are more stringent shall apply.
(4) Management of sewage or waste water, re-use and recycle of treated
waste water by dual plumbing system shall be as under,-
a. Dual Plumbing System shall be implemented, where one shall be
used for supplying fresh water for drinking, cooking, bathing etc.
and another for supply of treated water for flushing;
b. Only treated water shall be used for flushing.
c. In no case, sewage or untreated waste water generated within the
project area shall be discharged through storm water drains or
otherwise into water bodies nor discharged or injected into the
ground water by any mode; and
d. The project authority may opt or avail to common off-site
treatment facility, as feasible, for treatment with re-use & recycle
3
of corresponding quantity of treated water through the dual
plumbing system for flushing and other non-potable use.
ii.
In Table 15.1: Environmental Conditions for Building and Construction
(Building Category ‘1’:5000sq.m to < 20,000Sq.m)
(a) For serial No. 3(a) and the entries relating thereto, the following shall
be substituted, namely:-
3(a)
Onsite solid waste management facility
should be developed and a formal
contractual
arrangement
shall
be
ensured with authorized recyclers or
concerned
municipal
agency
for
disposal
of
all
non-biodegradable
waste.
(b) For serial No. 3(b) and the entries relating thereto, the following shall
be substituted, namely:-
3(b)
Where
there
is
no
alternate
arrangement
for
disposal
of
biodegradable waste, organic waste
composter or a vermin-culture pit with
a minimum capacity of 1.0 kg per day
or 150sqm of built-up area shall be
installed and operated.
(c) For serial No.4 and the entries relating thereto, the following shall be
substituted, namely:-
4.
Sewage
treatment plant
i. In areas where there is no
municipal sewage network
a. Onsite
Sewage
Treatment
Systems with capacity to treat
100% waste water shall be
installed
with
appropriate
tertiary treatment system with
disinfection for black & grey
water. Such treated water shall
be used with dual plumbing
4
system for flushing and other
non-portable use;
OR
b. In case of usage of septic tank,
only
black
water
shall
be
discharged into the septic tank.
Grey water shall be treated
through
natural
treatment
systems
or
other
secondary
treatment as feasible. Such
treated water shall be used with
dual
plumbing
system
for
flushing and other non-portable
use;
The excess treated water shall
conform to the general discharge
norms of the Central Pollution
Control Board or MoEF & CC.
ii. In area where there is municipal
sewage network.
a. Onsite
Sewage
Treatment
Systems with capacity to treat
100% waste water shall be
installed
with
appropriate
tertiary treatment system with
disinfection for black and grey
water. Such treated water shall
be used with dual plumbing
system for flushing and other
non-portable use;
OR
b. The
project
authority
or
developer may opt to discharge
only
black
water
in
such
municipal
sewage
network
subject to availability to trunk
sewer line. For this purpose, two
separate pipeline network-one
5
for black water discharge and
other for collection of grey water
shall be installed. Grey water
shall be treated through natural
treatment
systems
or
other
secondary treatment as feasible.
Such treated water shall be used
with dual plumbing system for
flushing and other non-potable
use;
(iii) In Table 15.2: Environmental Conditions for Building and Construction
(Building Category ‘2’ ≥ 20,000Sq.m to 50,000Sq.m
(a) For Serial No. 3(a) and the entries relating thereto, the following shall
be substituted, namely:-
3(a)
Onsite solid waste management facility
shall be developed and a formal
contractual
arrangement
shall
be
ensured with authorized recyclers or
concerned
municipal
agency
for
disposal
of
all
non-biodegradable
waste.
(b) For serial No: 3(b) and the entries relating thereto, the following shall
be substituted, namely:-
3(b)
Where
there
is
no
alternate
arrangement
for
disposal
of
biodegradable waste, an organic waste
composter or a vermin-culture pit with
a minimum capacity of 1.0 kg per day
or 150 sq.m of built-up area shall be
installed and operated.
(c) For serial No. 4 and the entries relating thereto, the following shall be
substituted, namely;-
4.
Sewage
treatment
plant.
1. Onsite Sewage Treatment Plant
with capacity to treat 100% waste
water generated within the project
area through tertiary treatment
6
shall be installed. Treated waste
water shall be reused on site for
landscape, flushing, HVAC, fire-
fighting, and other end-uses.
2. The
adequacy
of
the
Sewage
Treatment Plant (STP) shall be
certified by an independent expert
of sewage management and a
report in the regard shall be
submitted
to
the
authorized
agency.
3. Discharge of excess treated waste
water outside the premises: after
treatment in the sewage treatment
plant (STP), the treated water shall
meet the discharge standards as
notified by the Central Pollution
Control
Board
or
Ministry
of
Environment, Forest and Climate
Change, Government of India from
time to time.
4. Waste water and treated water
quantification
system
through
metering or sub-metering shall be
installed.
5. Sludge form the onsite sewage
treatment
shall
be
collected,
conveyed and disposed as per the
Central
Public
Health
and
Environment
Engineering
Organization (CPHEEO) Manual,
Ministry of Housing and Urban
Affair, on Sewerage and Sewage
Treatment Systems.
6. Where Common Sewage Treatment
Plan facility has been availed, it
shall be ensured that treated waste
water is recycled back to respective
building for reuse.
7
(iv) In Table 15.3,; Environmental Conditions for Building and Construction
(Building Category ‘3’ ≥ 50,000sq.m to 1,50,000 sq.m)
(a) For serial No. 3(a) and the entries relating thereto, the following shall
be substituted, namely:-
3(a)
Onsite solid waste management facility
shall be developed and a formal
contractual
arrangement
shall
be
ensured with authorized recyclers or
concerned
municipal
agency
for
disposal
of
all
non-biodegradable
waste.
(b) For serial No. 3(b) and the entries relating thereto, the following shall
be substituted, namely:-
3(b)
Where
there
is
no
alternate
arrangement
for
disposal
of
biodegradable waste, an Organic waste
composter or a vermin-culture pit with
a minimum capacity of 1.0 kg per day
150 sgm of built-up area shall be
installed and operated.
(c) For serial No. 4 and entries relating thereto, the following shall be
substituted, namely:-
4.
Sewage
Treatment
Plant
1. Onsite Sewage Treatment Plant
with capacity to treat 100% waste
water generated within the project
area through tertiary treatment
shall be installed. Treated waste
water shall be reused on site for
landscape, flushing, HVAC, fire-
fighting, and other and end-uses.
2. The
adequacy
of
the
Sewage
Treatment Plant (STP) shall be
certified by an independent expert
of sewage management and a
report in this regard shall be
8
submitted
to
the
authorized
agency.
3. Discharge of excess treated waste
water outside the premises: after
treatment in the Sewage Treatment
Plant STP, the treated water shall
meet the discharge standards as
notified by the Central Pollution
Control
Board
or
Ministry
of
Environment, Forest and Climate
Change, Government of India from
time to time
4. Waste water and treated water
quantification
system
through
metering or sub-metering shall be
installed.
5. Sludge form the onsite sewage
treatment
shall
be
collected,
conveyed and disposed as per the
Central
Public
Health
and
Environment
Engineering
Organization (CPHEEO) Manual,
Ministry of Housing and Urban
Affair, on Sewerage and Sewage
Treatment systems.
6. Where common Sewage Treatment
Plan facility has been availed, it
shall be ensured that treated waste
water is recycled back to respective
building for reuse.
By Order and in the name of the
Governor of Karnataka.
(LATHA.K)
Under Secretary to Government,
(Development Authority and NaYoSe)
Urban Development Department.
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Date: 2026.02.23 17:57:24 +05'30'