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Rough idea of cost for small extension

We're thinking of having a small extension built on the side of our house, to give us a downstairs toilet and porch area. It would be single storey and approximately 1m by 2.5m. We'd like all the plumbing done at the same time. Can anyone give me a rough estimate of the sort of figure we're looking at?

1 Answer from a MyBuilder Extension Builder

When I apply for building warrants here in glasgow I use the figure £1000 / m2.
Hope this helps



Answered 17th Apr 2015

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