Wraparound extensions in Barrow-in-Furness: design, approvals and build
Thinking about a wraparound extension for your Barrow-in-Furness home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in Barrow-in-FurnessFrom £34,000 inc VAT
- PlanningUsually a householder application
- Build time14–20 weeks on site
- Postcode districtsLA13, LA14
Working in Barrow-in-Furness
Postcode districts we cover around Barrow-in-Furness include LA13, LA14. We also work in nearby Ulverston (9 miles), Kendal (24 miles), Whitehaven (34 miles), Workington (39 miles).
Morecambe, in Lancashire, is roughly 15 miles from Barrow-in-Furness and also on our list. 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.
When a wraparound extension makes sense
- Semi-detached houses with a side passage
- Families who want kitchen, dining and living in one space
- Terraced houses that want the largest ground floor possible
What should I budget for a wraparound extension in Barrow-in-Furness?
For Barrow-in-Furness we adjust our national guide rates by ×0.95, the factor we use for North West England. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Barrow-in-Furness: £1,900 to £3,520 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £34,000 – £41,500 | £39,000 – £50,000 | £49,500 – £63,500 |
| Medium L-shape 25 m² | £47,500 – £57,000 | £54,500 – £69,000 | £68,500 – £88,000 |
| Large L-shape 32 m² | £60,500 – £73,000 | £69,500 – £88,500 | £88,000 – £112,500 |
Try the guide-price tool to see a range for your own size and finish.
Will the council need to approve it?
In England a wraparound extension is assessed as both a side and a rear extension, and the combination usually falls outside permitted development, so most need a householder planning application (£548 from 1 April 2026).
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Our process, step by step
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
We visit your Barrow-in-Furness home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Your questions about a wraparound extension in Barrow-in-Furness
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Barrow-in-Furness, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do I need building regulations approval in Barrow-in-Furness?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Who do I contract with for a wraparound extension in Barrow-in-Furness?
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.
How much does a wraparound extension cost?
Our guide range is about £1,900 to £3,520 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £54,500 to £69,000 in Barrow-in-Furness before design and council fees.
Will I need to move a drain?
Often. Side returns frequently contain a manhole or a shared drain. Building near or over a public sewer needs the water company’s consent in England and Wales, which we arrange.
Book a free site visit in Barrow-in-Furness
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.