Buckinghamshire
Roof lanterns and rooflights for rear extensions in Buckinghamshire
Lanterns, flat rooflights and walk-on glass that bring light deep into the plan. Rear extensions in Buckinghamshire: we cover 13 towns including Milton Keynes, High Wycombe and Aylesbury, with design, approvals and the build under one contract.
Rear extensions in Buckinghamshire gain most from a rooflight placed against the old back wall, where the room would otherwise be darkest. Around Buckinghamshire the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
What does it cost in Buckinghamshire?
As a guide, £2,200–£4,500 including VAT. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
What approvals does it need in Buckinghamshire?
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 Buckinghamshire do we work?
FAQ
Questions people ask
Lantern or flat rooflight?
A lantern gives height and a feature; a flat rooflight is cleaner and lower-profile.
Do rooflights count towards the 25% glazing limit?
Yes, in England's simple route; more is possible with a calculation.
Can a rooflight open?
Yes, manually or electrically, with rain sensors.
Do you cover all of Buckinghamshire?
We cover 13 towns and districts in Buckinghamshire, including Milton Keynes, High Wycombe and Aylesbury.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.