Home Extension

[pcthawkins]

Is there a rough figure that can be used per square metre/foot to calculate the cost of having an extension built? It would be useful to know figures for 1 and 2 storey extensions so I can work these in to the cost of buying a new house.

[Octavius]

There are so many things to consider, but if you allow say about �300 per m�  (fees - may vary this greatly) then you shouldn't be too far off a starting point.  And always get 3-5 different quotes and references.  Here are some useful points:

A garage costs between �15,000 and �40,000 and you are likely to recoup all of that money when you sell, perhaps even more than you spend in London.

By comparison, a garden makeover could cost between �3,000 and �6,000 and you may recoup just 10 per cent of the money.

Double-glazing costs between �4,000 and �15,000, and central heating from �3,000 to �6,000. They recoup 25 per cent.

A conservatory costs �5,000 to �25,000 and recoups 40 per cent.
Electrical wiring or under-floor heating can cost between �2,000 to �4,000,
A kitchen refit from �2,000. These can all recoup 50 per cent.
Rear or side extension can cost �7,000 to �20,000 and recoup 60 per cent.
New bathrooms cost �7,000 to �20,000,
loft conversions �15,000 to �30,000. Both can recoup 75 per cent.

[landie]

When I had mine built I reckoned on �50 per square foot. If it is more than single storey, calculate the other floors as well. It may not be the same price now, I had mine built a few years ago.