Hips were introduced in August and became compulsory for three bedroom houses on September 10th. Since then the number of properties coming on the market that required a Hip has fallen by half. How much of this is down to the Hip and how much is down to financial crises, such as Northern Rock, is unsure, but with Hips costing an average of £300 plus VAT (Government quoted figure) they have undoubtedly had an affect.
Note that you can often get grants from your local council and energy suppliers for installing a condensing boiler and some types of insulation.
For advice on Hips and EPCs you can contact Communities and Local Government on 02079444400 for information on green grants see.
www.energysavingtrust.org.uk, http://www.communities.gov.uk