HOW MUCH IT WILL COST TO BUILD THE HOUSE EXTENSION?
In order to answer to this question we need to look and consider a lot of factors that determine the size of the project, build process, the materials will be used as well as clients personal touch and idea. However we can calculate and give you a rough quote based on previous experience and to try and give some understanding of what you might expect:

HOUSE EXTENSION COSTS:

£2350 – £3500 PER SQ M APPROX.
The above figure is representative of a well designed and executed single storey extension in the South East area. The range represents the difference in finish from a standard to high end. A Victorian Terrace ‘Side Return’ Extension would be considerably higher because of the additional complexities involved in the build.
INTERNAL ALTERATIONS AND MODIFICATIONS:
£750 – £1100 PER SQ M APPROX.
Invariably extension projects tend to creep back in to the rest of the house and as such if you are intending to remodel and alter the rest of the house it is prudent to budget a square meter cost for that also.
OUR COSTS
Please also take a look at our Fees and Disbursements page to understand the likely costs you will incur prior to the build phase.