Kenilworth, Warwickshire
Rear extension planning drawings in Kenilworth
Measured survey, design options, planning drawings and the application, handled for you. If you live in Kenilworth and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Kenilworth sits in Warwickshire, with postcode districts including CV8. Rear extension applications in Warwickshire are householder applications, which councils aim to decide within about eight weeks.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Kenilworth?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. 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. 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 for a rear extension in Kenilworth?
Whether your rear extension in Kenilworth needs a planning application depends on its size, your house and any local restrictions.
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.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Kenilworth like to extend?
Red-brick terraces and 1930s semis make up much of Kenilworth. Many already have a small kitchen lean-to at the back, which a new rear extension usually replaces rather than adds to.
How a rear extension in Kenilworth comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Rear extension planning drawings near Kenilworth
From Kenilworth, the nearest places we also cover are Warwick (4.6 miles) and Coventry (4.9 miles).
- Rear extension planning drawings in Warwick
- Rear extension planning drawings in Coventry
- Rear extension planning drawings in Royal Leamington Spa
- Rear extension planning drawings in Knowle
- Rear extension planning drawings in Solihull
Other work in Kenilworth:
FAQ
Rear extension planning drawings questions in Kenilworth
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
How long does a rear extension take to build in Kenilworth?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do neighbours get consulted?
Yes for a full application: the council writes to them or puts up a site notice.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Do you handle building control in Kenilworth?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.