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Wraparound extensions for homes in Leigh

Thinking about a wraparound extension for your Leigh 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 LeighFrom £34,000 inc VAT
  • PlanningUsually a householder application
  • Build time14–20 weeks on site
  • Postcode districtsM29, M46, WN7
L-shaped wraparound extension on a brick terraced house at dusk

Planning rules that apply in Leigh

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).

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

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.

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).

Wraparound extension prices in Leigh

For Leigh 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 Leigh: £1,900 to £3,520 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
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

Want a range for your exact size? The guide-price tool takes about a minute.

What we take care of

  • Survey, design and 3D layout options
  • Structural design for the corner and openings
  • Party wall notice support (England and Wales)
  • Householder planning application
  • Roof with glazing along the side return

Working in Leigh

Our survey diary covers Leigh, including M29, M46, WN7. We also work in nearby Atherton (2 miles), Tyldesley (2 miles), Westhoughton (4 miles), Hindley (4 miles).

For homes towards Merseyside, Golborne is around 3 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.

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.

  1. Free site visit

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  2. Design and approvals

    Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.

  3. Fixed written price

    We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.

  4. Build and sign-off

    Work is carried out to the agreed programme, inspected by building control and signed off at the end.

Your questions about a wraparound extension in Leigh

Will my neighbours in Leigh be involved?

If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.

Who do I contract with for a wraparound extension in Leigh?

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.

Do I need building regulations approval in Leigh?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Do wraparound extensions need planning permission?

Usually, yes. In England the side element counts as a side extension and the rear element as a rear extension, and the combination normally falls outside permitted development. A householder application costs £548 in England from 1 April 2026.

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 Leigh

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

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