Lincolnshire
Rear extension plans and planning applications in Lincolnshire
Measured survey, design options, planning drawings and the application, handled for you. Across Lincolnshire we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Lincoln, Grimsby and Scunthorpe.

Planning applications in Lincoln go to the local planning authority, and we check its local design guidance for rear extensions before drawing. Lincolnshire has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.
What does it cost in Lincolnshire?
As a guide, £1,000–£2,500 including VAT. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission in Lincolnshire?
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Where in Lincolnshire do we work?
FAQ
Questions people ask
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
What if planning is refused?
We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.
Do you cover all of Lincolnshire?
We cover 17 towns and districts in Lincolnshire, including Lincoln, Grimsby and Scunthorpe.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.