Mass Housing and Sustainability Experiences at Boisar

Mass Hous ing and Sus tain ability
Ex periences at Bois ar
Mass Housing and Sustain abil ity
Experiences at Boisar
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Shyam Dam oda ran
Mass Hous ing and Sus tain ability
Ex periences at Bois ar
•
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Homes that cos t between 4 lakhs per
unit to 30 lak hs per unit.
Mass Hous ing and Sus tain ability
Ex periences at Bois ar
•
•
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Homes that cos t between 4 lakhs per
unit to 30 lak hs per unit.
Ex pec ted to Grow
Mass Hous ing and Sus tain ability
Ex periences at Bois ar
•
Mass Hous ing and Sus tain ability
Ex periences at Bois ar
•
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Homes that cos t between 4 lakhs per
unit to 30 lak hs per unit.
Ex pec ted to Grow
•
Des ign Challenges :
•
•
•
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Homes that cos t between 4 lakhs per
unit to 30 lak hs per unit.
Ex pec ted to Grow
Des ign Challenges :
• High ground dens ity
Environmental Impact
Mass Hous ing and Sus tain ability
Ex periences at Bois ar
High population dens ity
High water use and effluent disc harge per
acre.
Des ign Challenges :
• High ground dens ity .
High solid waste discharge per acre.
• Need to lower c os t, requir ement
for robus tnes s and quality .
Trans portatio n impac t.
Mass Housing and sustain abi lity
Though s ome of the bas ic requirements of mass hous ing are c omplimentary to the need of sus tain able
development, other requir ements of s us tainability may go agains tthe grain of low c os t and need
foc us ed attention and Engineerin g
Frug ality an d
materi al
Efficiency
Affordable mas s hous ing plac es further
c halle nges on s us tainable des ign
c ompared to other development.
Low Flow fix tures
Good acc ess to
Public
transp orta tion
Stric t c ontrol on c os ts .
Higher population dens ities res ulting in
higher conc entration of water requir ement
and effluent disc harge and solid was te
generatio n.
SUST AINA BLE
DEVELO PM ENT
FOR
MAS S HOU SING
Treate d Sewage
reus e fac ilities
Recycled
content
Need to optimiz e s truc ture while prov id ing
adequate thermal c harac teris tics .
Envelop th erm al
efficiencies
Solid waste
manag eme nt
Need to reduc e cons truc tion time.
Easy to achie ve:
complime ntary
to sustain able
develop ment
Mixed Income township at Boisar: an Introduction
Difficult
in the r ealm of
low cost an d
needs a ttenti on
Bois ar Projec t 60 ac res
K L IN
E
4. 5 M SET B
A C KK LI NE
Dev elo pment on a 60 acre s ite:
4. 5 M
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Architects: RSP Bangalore and Mumbai
17. 5 M
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Firs t phas e cons isting of v alu e hous ing
nearing c ompletion
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1500 units of v alue hous in g c alled “Shubh
Griha”, 1500 units of affordable hous in g
called “New Haven” and row hous ing.
1
M
.
45
/
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C IT
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Total built up area of 2 million sq feet.
5
7.
LI N
E
M
Inc ludes amenities for s elf sufficiency
s uc h as community centers , primary
s chool, retail and medic alc entre.
LIN
HT
15
HT
RE RO U TE D D RAI N
SET
BA CK
Building ty polo gie s range fromv alue
homes s tarting from Rs . 4 lakhs per
s tudio unit to Rs 6 lakhs for a 1 bedroom
unit, to affordable hous in g and row
hous ing.
LINE
•
High materia l use dens ity
M SE
TB AC
KK LIN
E
HT
M SE
TB AC
KK LIN
E
•
High Land us e
17. 5
•
The Value and affordable hous in g
s ec tor in India caters to a 17 million
plus units shortage.
Homes that cos t between 4 lakhs per
unit to 30 lak hs per unit.
Ex pec ted to Grow
17. 5
•
17. 5 M SET
B AC K K LI N
E
HT LI N E
N
Transportation and connectivity
Bo
is a
rt
o
M
a ha
ga
on
Ro
Bois ar is loc ated 45k ilometres (28 mi)
North of Virar on the Wes tern Railw ay line
of Mumbai Suburban Railw ay , at 1.5 Km
from the railw ay s tatio n
ad
Site
Material use efficiencies: Small costs more
High dens ity ofv ertic al surfac es on a unit
area gives in itial s urprises to the c os t
engin eer: s mall hous ing unit s truc tures
c os t more per unit area than more
lux urious apartments .
VI RAJ I NDUSTRI ES
TO M UM BAI
TO M UM B AI
TO EX PR ES S
HI G HW AY
Bois ar can be acc ess ed by Shuttle trains
from Virar. Long Dista nce train s als o stop
at Boisar.
Strategies to controlc os ts while prov idin g
thermalc omfort res ults in diss imilar
internal and ex te rnal wall thick ness es .
By Road, Boisar can be reached from the
National Hig hway NH-8, 22 k ilo meters
There are regula r s tate trans port bus es
from Palghar, Thane, Bhiw andi and Wada
to Mumbai.
Nec es s ity leads to innovations in
affordable ex ternalwall ins ula tion.
.
Material efficiencies: perimeter optimizati on
Material use efficiencies: maximizin g shared surfaces
Thes e s tr ategies inc lu de
planning effic ienc ies that drive
minimal vertical surfac es per
unit with:
Optimized geometr ies .
Max imiz ed s hared s urfaces
.
Material use efficiencies: Reduc ing waste
Cement Concrete and the Environment
The gl obal us e of c oncr ete is se cond only to
water. As t he de man d for conc rete as a
construc tion m ateri al incr eases, s o also the
deman d fo r Portla nd ce ment.
It is estim ated that t he p rodu ction o f cem ent will
increase fro m ab out f rom 1.5 billio n tons in 19 95
to 2.2 billion to ns in 2 010
The p rod uction of on e ton of Portl and c eme nt
emits ap proxi mately one t on of CO2 int o the
at mosp here .
At Boisar, res earc h is bei ng con ducte d on
ancillary st ructu res, sit e infr astruc ture and non
housing units t o star t with o n the use o f fly ash
and ce ment s ubstitu tes.
Fly ash blocks a re us ed fo r infill walls in fra med
structu res with mod ular size s to p reve nt cut blocks
and wast age.
Carbon foot print attrib uted to th e
structu re ca n be reduc ed by 75% with
alterna tive str uctur al ma terials.
Water use volumes and cycle
Effluent treatment
3000 housing units
250 persons
per ac re
1.8 MLD water
requirement
60 acres
Public util ity
s upply
1.72 MLD e ffluent
for
requirement
Flushing
Ground water
Irrigation
Sewage disc harge is on s ingle
s tack drainage due to nec es s ity
to c ontrol cos t.
Sewage treatment is des igned to
us e elec troly tic treatment to
reduce power cons umption and
reduce the s iz e of tank age
required.
Rec yc led effluent us ed for
flus hin g has to be c los e to
s ourc e to reduc e c os ts of return
piping. Hence multiple
dis trib uted plants are used.
Flushing reuse
Effluent
Localiz ed treatment
Howev er bala nc e is worked out
between hig her cos t of s maller
plats v ers us sav ing in return pipe
lengths .
Harves ted wate r
Flushing reuse
Effluent
Ex cess treated effluent is us ed
for irrigation and for topping up
of water bodie s .
Irrigation
and storage
Localiz ed treatment
Irrigation
and storage
Solid waste manag ement
Rainw ater harvesting strategies
Separ at o
in
All of roof drain age is harv es ted
for rec harge of s hallow and deep
ground v ia infiltratio n beds and
rec harge pits .
Soil had low permeability and
was s ubjec t to high s urface run
off from s urroundin g properties .
Storm water management
inc luded s low perc olatio n swale s
and buffer zones in depres sed
areas used as open spac e in dry
c onditions .
Stream water harv es ting at hig h
water levels is achiev ed by
inc orporating a s ubmerged
c heck dam to recharge ground
water.
Househo d
l
Wast es
Coll ect ion
O r ganic Wast es
Kit chen and
f ood wast es
Landf li
disposal
Credits: RainwaterConcepts, Bangalore andAiyappaMasagi
Com post n
ig
Low Cost Homes from High Cost Expertise
Architects
Sustainability
consultants
Engineerin g Cons ultants
and
Projec t Management
Res earch
and Innovation
I nor ganic wast es
O f f- sit e sor ting
and pr ocessing
Com m er cial
Bio- degr adab le
wast e
Resident i al Recyc a
l bl es
Storm water design: Tata Consulting Engineers, Mumbai
Sustainability:Milestone Eco First
Structural Engineers
Landscape
Tr im m ings
Corporate Real Estate
Developer
and Scale
Sustainable,
Low Cos t
Mass Housing
End Us er
Finish ed com post
M at er ial f or on- sit e
a
l ndscap n
i g and
r egional agr icu lt ur e
Photographs from the site: Trial apartments : Shubh Griha
Photographs from the site: Trial apartments : Shubh Griha
Photographs from the site: Trial apartments : New Haven
Shubh Griha Ver 2 strategies: Upgrading env elop efficienc ies
Photographs from the site: Trial apartments : New Haven
Improv ing c ons truc tability
and reduc in g cos t of
envelop s urfac es while
improv ing thermal
c harac teristic s us ing
c arefully engin eered
material
Pic courtesy: Manoj Patel
Closure
Shubh Griha Ver 2 strategies: Upgrading env elop efficienc ies
A few att itudes to
suc cess in low
c os t hous ing:
Humility
Integrity
Simplic i ty
A c los ing tribute to
Laurie Bak er
Rat trap bond masonryused at our site in Gurgaon
A few
att itudes to
Simplicity
suc cess in low
c os t hous ing:
T hank you
Humility
Integrity
Simplic i ty
A c los ing tribute to
Laurie Bak er
Tata Housing –Prive, Lonavala : by SCDA