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versus
NEWCONSTRUCTION
COMPARATIVEANALYSISFOREXISTINGGOVERNMENTQUARTERSINRAJASTHAN
Arch i t ec t u re & Resto ra t ion Plann ing & Deve
lopment
53, New Rajdhani Enclave, Vikas Marg, Delhi-110 092Tel/fax: 91
9891300510, 911 22430214
mosaic.net.in, [email protected]
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Rajasthangovt.declared in2009
topromoteGreenBuildings.(EconomicTimes Oct19,2009)
TherunoftheGreenBuildingsConceptshouldstartfromexistingstructuresas
Thegreenest
buildingsaretheoneswealreadyhave.
(JaneJacobs,UrbanActivist,1993)
Astudywasconductedtoanalyzetheeconomical,environmentalandsocialcostofdemolitionand
reconstruction
of
the
existing
residential
government
quarters
against
restoration/retrofitting
of
thesame.
Thepilotanalysishasbeen doneforonedistrict Sriganganagar.The
resultsmaybeapplied forthe
other32
districts
of
Rajasthan.
Datacollection Analysis Strategies
From
Sriganganagar
SurveySamples
Restoration
vsNewconstruction
Economicalcost
Findings
Action
Wayforward312residentialunits
Environmentalcost
Socialcost2
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85%
ofthebuildingsaremorethan40yrsoldandhencewouldrequireeitherrestorationornew
construction,i.e.18,786sqmt oftotalBUAwithinnext5to20yrs.
Ageof
buildings
YearTotalAllotment
(Lakhs)
TotalExpenditure
(Lakhs)
11% 4%
24% 020
2140. .
200809 07.65 07.76
200910 07.50 06.59
201011 08.00 08.00
19% 4160
6180
201112 07.53 10.01
Total 40.78 43.14
Avg /year 08.15 08.62 Source:PWD,Sriganganagar
Lowerbudgetallocatedforrepairingandmaintenancedegradesthelifespanofabuilding.
Costof
New
Construction Cost
of
Restoration
3032lakhs 606lakhs
Assumptions:Thecostisfor18,786sqmt of
construction/restoration.
The costofrestorationisexclusiveofanyadditionofnewspace.
Source:Author
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Total PWD Residential Units in Sriganganagar District
Headquarter 312 nos.
85 % of the units are more than 40 rs old 265 nos.
Total Cost of Construction 30.32 Crore
Total Cost of Renovation/Restoration/Retrofitting 6.06 Crore
Hence, amount saved per unit 9.15 Lakhs
Estimated Govt. units in Sriganganagar District 1500 nos.
.
Approximate Total Savings in -
Sriganganagar District 145.88 Crore
4 814.04 Crore
12 major states of India 57,768.48 Crore
, ,
savings
are
substantial
over
the
next
20
years.
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AccordingtoPreservationGreenLabstudy,whencomparingbuildingsofequivalentsizeandfunction,
building
reuse
offers
definite
environmental
savings
over
demolition
and
new
construction.
9 Demolishingtheexistingstructure 9 Transportingoutdebris
9Transportingmaterialstosite
9 Trans ortin workforce 9 Layingofnewservices 9 Erectin
Structures
Approximately1200fullygrowntreeswouldberequiredtosequestratetheamountofCO2
generatedby
transportationofdebris.Hence,considerthenumberoftrees,relatedlandandmanpowerthatwouldbe
IMPACTOFCONSTRUCTIONINDUSTRY
.
Activitiesin
restoration
that
minimizes
Population Vegetation
AirQualityClimate
Transportinginmaterials.(25%lesser)
Trans ortin workforce. 25%lesser
ConstructionTransportationWatersheds
1/6oftheworlds 1/4ofworlds 2/5ofworlds2
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Demolishingandrebuildingofthestructurehasin
generalthreeimportantfactorsforsocialcost:
Pollution addedto
the
atmosphere
due
to
demolition
and
the
resultant
health
cost.
Relocation ofthehousehold.
Lossofrestorationskillsetexistingamongcurrentworkers
COMPARINGTHEADVANTAGESOFBOTHTHEMETHODS
Advantagesof
Restoration
/Renovation Advantages
of
New
construction
Addingmorefloorscanbetrickybutinnovativeuseofthe
Allthestructuresare loadbearing,whichmeansrestoration
toilettotheexistingunit.
. ,
constructioncanbringupmoreBUAwithinagivenareaof
land.
Itrequires
lesser
money
but
need
manpower
with
unique
It
is
easier
but
require
more
money.
tec nica s i s .
Itoffersgreaterenvironmentalsavings
Source:Author
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Findings Strategies
Reuse/restoration matters Institutionalsetup
er agew ng
Trainingcell
Budgetaryallocationforinitialstartup
Cost of Renovation for single unit 2.30 Lakhs
Assuming 25% of the total buildings to be 80 yrs old that
require immediate repair 66 nos.
Sriganganagar District 1.51 Crore
33 Districts of Rajasthan 49.83 Crore
.
Approximate cost for Institutional Set Up (Heritage
Wing/Training Cell) 10.00 Crore
Apartfromhigheconomicbenefit,themostimportantperspectiveofrestorationis
environmental safe uard. Besides the reuse of the buildin
materials natural resources will be
2
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savedbytheuseofrestorationofexistingbuildings.
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