A side return extension is a great way to increase the size of your kitchen without losing garden space. If you live in London you can expect to pay around £40,000 to £50,000 before fixtures and fittings.
What is a side return extension?
A side return extension allows you to expand your home into an alleyway at the side of your property, typically constructed on period properties dating from the Victorian era. Don't be fooled by their size. Side returns are often small but can really open up kitchen and dining areas. Those looking for a lot of extra space often combine a side return with a rear extension, to form what is called a 'wrap around'.
The cost of a side return extension is dictated by a number of factors, including:
- The size of the proposed extension
- The layout of your existing home and garden
- It's relationship to neighbouring properties
- Ground conditions
Cost of a side return extension
The average cost of a side return extension, based in London at 1.5m x 6m, will be around £40,000-£50,000 + VAT as a contract sum, which refers to what you’ll pay your contractor to put in foundations, build an external wall and roof, install insulation and apply internal finishings, including plastering and floors.
For properties outside of London, these costs can go down to £35,000 - £40,000, as in theory professionals not based in London can charge a smaller fee.