Bungalow extensions in Chorley: design, approvals and build
Our design and build teams take on bungalow extensions in Chorley, from the first measured survey through planning and building control to the finished room.
- Guide price in ChorleyFrom £24,500 inc VAT
- PlanningSingle storey often permitted development
- Build time10–18 weeks on site
- Postcode districtsPR6, PR7
Do I need planning permission in Chorley?
In England a single-storey extension to a bungalow follows the normal permitted development limits (3 m or 4 m, or 6 m and 8 m through prior approval). Adding a first floor always needs planning permission.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
What is included
- Level thresholds and accessible layouts
- Single-storey extension options assessed first
- Planning application where needed
- Roof designs that tie into the existing hipped or gable roof
- Structural survey before any upward extension
Covering Chorley
Site visits are available across Chorley (PR6, PR7). We also work in nearby Leyland (4 miles), Darwen (7 miles), Preston (9 miles), Blackburn (9 miles).
For homes towards Greater Manchester, Horwich is around 4 miles away. The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
Bungalow extension prices in Chorley
Labour and material costs vary across the UK, so for Chorley we use our North West England factor (×0.95). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Chorley: £1,660 to £3,230 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £24,500 – £30,000 | £29,000 – £38,000 | £37,000 – £48,500 |
| 4 m × 6 m 24 m² | £39,500 – £48,000 | £46,500 – £60,500 | £59,000 – £78,000 |
| L-shape 35 m² | £58,000 – £70,000 | £68,000 – £88,500 | £86,000 – £113,500 |
For a figure based on your own dimensions, use our guide-price tool.
From first visit to completion
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions people ask about bungalow extensions
Do I need building regulations approval in Chorley?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Do you cover all of Chorley?
Yes. We cover Chorley and the surrounding parts of Lancashire. Site visits are free and there is no obligation.
Who do I contract with for a bungalow extension in Chorley?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Is it better to extend sideways or upwards?
Sideways and rearwards is usually simpler, cheaper and keeps single-level living. Upwards saves garden but means stairs, more structure and planning permission.
Can I extend a bungalow without planning permission?
In England a single-storey rear extension to a bungalow follows the same permitted development limits as a house: 3 m or 4 m, or up to 6 m or 8 m through prior approval. Adding a storey always needs planning permission.
Book a free site visit in Chorley
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.