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5 x4 double storey extension .

I'm considering a 5 x4 metre double extension to the side of our detached house. Before I go much further I don't have a clue how much something like that would cost so I'm just after a bit of a rough idea.

There is currently a conservatory on the side I'm considering the extension.

Is it cheaper to use one company for everything or for me to purchase all the materials and separate tradesmen individually.

1 Answer from a MyBuilder Extension Builder

Hi Chez,
You don't say where in the UK you are.
I'm in Glasgow and when I submit applications for building warrant I use the cost of £1500 / m2 So a cost of £60k seems reasonable


Answered 19th Aug 2015

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