Most of the extensions we build in Rugby are single storey and at the back, on the interwar and post-war semi-detached housing out towards Bilton, Hillmorton and Overslade. That stock suits it: there is usually side access wide enough to get materials through without going via the house, and enough garden to work in without the job taking over the whole plot.
The terraces closer to the town centre are a different proposition. Access is often through the house or down a shared entry, which changes the sequence, where the muck away goes and how long the messy phase lasts. We would rather tell you that at the quotation stage than discover it in week one.
A typical rear extension runs in the same order each time: set out and dig the footings, get them inspected and poured, build up to damp proof course, oversite and floor, then the shell, roof, and openings formed into the existing house. First fix, plaster, second fix and snagging follow. Removing a wall between the old and new space usually means a steel beam and structural calculations, which we arrange rather than leaving with you.
On the newer estates at Cawston, Brownsover and Houlton there is often an estate management company or a covenant on the deeds that has a say in what you can build. That is worth checking before a designer draws anything, and it is the first thing we look at on those.
Many of these extensions fall within permitted development, so no planning application is needed. Permitted development is not an exemption from Building Regulations though, and a full plans application is still required. We arrange and meet the Rugby Borough Council inspections and see the work through to sign off.
What an extension costs depends far more on the ground and the specification than on the floor area: what the footings find when we dig, how much of the existing house is opened up, and what goes into the roof and the glazing. Our extensions service page sets out the specification choices and what moves the price, and we put a figure in writing before anything starts.