Sunderland wraparound extensions, designed and built
Thinking about a wraparound extension for your Sunderland 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 SunderlandFrom £32,500 inc VAT
- PlanningUsually a householder application
- Build time14–20 weeks on site
- Postcode districtsSR1, SR2, SR4, SR5, SR6
Working in Sunderland
We cover Sunderland and the postcode districts SR1, SR2, SR4, SR5, SR6, SR9. Neighbouring towns we cover include Washington (5 miles), Houghton-le-Spring (6 miles), Jarrow (7 miles), South Shields (7 miles).
For homes towards County Durham, Seaham is around 5 miles away. Across the North East, houses often have rear yards or modest gardens, so compact, well-lit single-storey extensions make the biggest difference.
What is included
- Party wall notice support (England and Wales)
- Structural design for the corner and openings
- Roof with glazing along the side return
- Foundations, drainage and any manhole relocation
- Survey, design and 3D layout options
- Householder planning application
How much does a wraparound extension cost in Sunderland?
Prices below are for Sunderland, using the North East England factor of ×0.91. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Sunderland: £1,820 to £3,370 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £32,500 – £39,500 | £37,500 – £48,000 | £47,500 – £61,000 |
| Medium L-shape 25 m² | £45,500 – £55,000 | £52,000 – £66,000 | £65,500 – £84,500 |
| Large L-shape 32 m² | £58,000 – £70,000 | £66,500 – £84,500 | £84,000 – £108,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
Planning and approvals in Sunderland
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).
The planning position for a specific Sunderland address depends on its history and any designations, which is why we check it at the first visit.
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.
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 happens next
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 Sunderland home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
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.
Wraparound extension questions answered
Do I need building regulations approval in Sunderland?
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 Sunderland?
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 long does a wraparound extension take to build in Sunderland?
On site, typically 14 to 20 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.
Is a wraparound better than a side return alone?
It adds far more space, but costs more and needs planning permission more often. Our comparison guide sets the two side by side.
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 Sunderland
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.