Cost model: Small industrial units | Features

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 London	1.04
Outer London	1.01
South-west	0.95
East Midlands	0.91
West Midlands	0.93
East Anglia	0.96
Yorkshire & Humberside	0.96
North-west	0.93
Northern	0.95
Scotland	0.95
Wales	0.90
Northern Ireland	0.74