Cost model: Car showrooms | Features

Additional costs
听	£/m² (gifa)
Option 1: Replace ceramic floor tiles with timber flooring	3.5
Option 2: Replace ceramic floor tiles with natural stone tile	17.5
Option 3: Add timber decking display to exterior	1.25
Option 4: Fairface blockwork in lieu of plasterboard	–1.00
Option 5: 1600mm wide canopy in lieu of brise-soleil	–9.00
Option 6: Add 10% north-facing rooflights	6.25
Option 7: Replace timber brise-soleil with aluminium brise-soleil	4
Option 8: Use of high-performance solar glass	11

Location factors
Inner London	1.07
Outer London	1.04
South-west	0.98
East Midlands	0.94
West Midlands	0.95
East Anglia	0.98
Yorkshire and Humberside	0.98
North-west	0.93
Northern	0.98
Scotland	0.98
Wales	0.91
Northern Ireland	0.76
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

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