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b - Additional costs
Option£/m² gifa
Short bore piled foundations to columns for use in poor soil conditions£155
Substitute composite roof panels for built-up panels£12
Substitute composite wall panels for built-up panels£25
Using masonry dado walling instead of built up cladding at bottom of wall£30
Two-hour fire walls to boundary£40/m² of boundary wall area
Permeable paving instead of normal paving£15/gifa of building
Geocellular storage£30/gifa of building
Add ordinary hazard sprinkler system£25
Upgrade sprinkler system from ordinary to high hazard£12
Add high level radient heating£24
Add external-mounted CCTV camera, cabling and TV monitor to each unit£1,250/unit
c - Location factors
The cost breakdown is based on price levels current in the South-east and should be adjusted by the following location factors for schemes in other regions:
Inner London1.04
Outer London1.01
East Midlands0.91
West Midlands0.93
East Anglia0.96
Yorkshire & Humberside0.96
Northern Ireland0.74