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Formby timber frame extensions, designed and built

Our design and build teams take on timber frame extensions in Formby, from the first measured survey through planning and building control to the finished room.

  • Guide price in FormbyFrom £19,500 inc VAT
  • PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
  • Build time8–14 weeks on site
  • Postcode districtsL37
Timber frame extension under construction with OSB sheathing and roof joists

Is a timber frame extension right for your house?

  • Homeowners who want strong energy performance
  • Sites where weight or speed matters
  • Contemporary designs with timber or board cladding

Moisture is the enemy of any timber building. We design ventilated cladding cavities, breather membranes and a proper damp-proof course height, and keep the frame dry during construction.

Do I need planning permission in Formby?

In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.

The planning position for a specific Formby address depends on its history and any designations, which is why we check it at the first visit.

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.

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.

Applications are decided by the local planning authority (your district, borough or unitary council).

Working in Formby

Postcode districts we cover around Formby include L37. We also work in nearby Maghull (6 miles), Southport (7 miles), Bootle (7 miles), Litherland (7 miles).

Ormskirk, in Lancashire, is roughly 8 miles from Formby and also on our list. Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.

Guide prices for Formby

Labour and material costs vary across the UK, so for Formby we use our North West England factor (×0.95). The ranges include VAT and exclude design, structural and council fees.

Typical rates in Formby: £1,660 to £3,230 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£19,500 – £24,000£23,000 – £30,500£29,500 – £39,000
4 m × 5 m
20 m²
£33,000 – £40,000£38,500 – £50,500£49,000 – £65,000
5 m × 6 m
30 m²
£49,500 – £60,000£58,000 – £76,000£74,000 – £97,000

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.

  1. Free site visit

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

  2. Design and approvals

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  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

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Your questions about a timber frame extension in Formby

How long does a timber frame extension take to build in Formby?

On site, typically 8 to 14 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.

Who do I contract with for a timber frame extension in Formby?

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 Formby?

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

Does a timber frame extension need planning permission?

The same planning rules apply as for any extension. If the cladding looks different from the house, permitted development’s matching-materials condition may mean an application is needed.

Is timber frame cheaper than brick?

It is similar overall. The frame can save time on site, but the cladding choice has a big effect on cost. Our guide range is about £1,660 to £3,230 per m² including VAT.

Book a free site visit in Formby

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 .

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