East Riding of Yorkshire
Building Regulations for rear extensions in the East Riding of Yorkshire
Construction drawings, structural calculations and building control through to the completion certificate. We design and build rear extensions across the East Riding of Yorkshire, from Kingston upon Hull and Bridlington to Beverley, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

East Riding of Yorkshire has through terraces and some back-to-backs as well as later semis; back-to-backs have little or no rear space, so we look at side or loft options there.
What does it cost in the East Riding of Yorkshire?
As a guide, £2,500–£5,500 including VAT. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
What approvals does it need in the East Riding of Yorkshire?
Every rear extension in England needs Building Regulations approval, whether or not planning is needed. You can use the council's building control service or a registered building control approver, by full plans (checked before work, usually within five weeks) or a building notice, and you get a completion certificate at the end.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in the East Riding of Yorkshire do we work?
FAQ
Questions people ask
Full plans or building notice?
Full plans for most extensions: the design is checked before work starts. A building notice suits only simple jobs.
Who inspects the work?
The council's building control team or a registered building control approver (in Scotland, the council's building standards team).
What is a completion certificate?
The document confirming the work meets the regulations. Keep it; buyers' solicitors ask for it.
Do you cover all of the East Riding of Yorkshire?
We cover 7 towns and districts in the East Riding of Yorkshire, including Kingston upon Hull, Bridlington and Beverley.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.