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Chesterfield timber frame extensions, designed and built

A timber frame extension in Chesterfield starts with the right design and the right approval route. We take care of both, then build it with our own project management.

  • Guide price in ChesterfieldFrom £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 districtsS18, S40, S41, S42, S43
Timber frame extension under construction with OSB sheathing and roof joists

Timber frame extension prices in Chesterfield

These guide figures apply our East Midlands adjustment (×0.95) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.

Typical rates in Chesterfield: £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.

Working in Chesterfield

We cover Chesterfield and the postcode districts S18, S40, S41, S42, S43, S44. We also work in nearby Staveley (3 miles), Dronfield (4 miles), Alfreton (11 miles), Ripley (15 miles).

The East Midlands has plenty of inter-war and post-war semis and detached houses with room to extend, alongside Victorian terraces in the towns.

Will the council need to approve it?

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.

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 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).

Is a timber frame extension right for your house?

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

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.

  1. Free site visit

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. 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.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    We build it with one project manager, book the building control inspections and hand over the completion certificate.

Your questions about a timber frame extension in Chesterfield

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

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 you cover all of Chesterfield?

Yes. We cover Chesterfield and the surrounding parts of Derbyshire. Site visits are free and there is no obligation.

Do I need building regulations approval in Chesterfield?

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 Chesterfield

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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