How much to build?

This is off topic, I cannot find the information elsewhere. I have planning permission for an extension to be built on top of my garage, it will have a pitched/hip roof.

Now the question, is there a formula for working out cost to cubic meters. I have had a quote/estimate, seemed very high.

Thx.

Joe

Reply to
Joe
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There is a basic rule of thumb, but it's cost/m2. That is, take your estimate and divide it by the floor area. I'm not a cost consultant, but that figure could be anywhere between, say £300-750/m2 depending on where you live, the form of construction and the complexity of the job.

Have you got Building Regulations approval yet? The reason I ask, is because the 'adequacy' of the garage structure to sustain the additional load, can sometimes be a critical factor.

Reply to
Bypass

All planning permission has be obtained from the local council including building consent. The plans have also been approved.

Thank you for your reply.

Joe

Reply to
Joe

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