How much will it cost to build an Extension

Extension costs

The cost of an extension varies, depending on the size and complexity of the project. General builders will tend to quote around £1,500 per metre² for an extension. Average extensions can cost anywhere between £10,000 and £60,000 for the building works, but interior fittings and decorations will cost extra.

Conservatory costs

Conservatory prices start at around £8,000 for the installation of a simple uPVC double glazed conservatory. ‘The line between conservatories and extensions have blurred, and nowadays our customers are looking for a more integrated living space.

Conservatories can be built up to 8 metres out from the main property (for detached houses, 6 metres for other house types) without needing planning permission. This has led to a rise in larger conservatories being built.

Orangery costs

By their design, luxury orangeries feature more costly components, such as brickwork, pillars and roof lanterns. Our average orangery order is around £35,000.

When you buy from Prestbury Design and Build, you can expect outstanding service. With a price promise, our costing process is made clear and simple – with no hidden fees.