The effect on the whole industry | Features

DETR estimates of the cost of the regs
	Proposals with effect from 2002	Proposals with effect from 2004
New detached and semi-detached dwellings	£500-800	£900-1400
Smaller types of homes	£400-800	£600-1100
Naturally ventilated non-domestic buildings	£7/m²	£10/m²
Air-conditioned non-domestic buildings	£4.80/m²	n/a