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Timber frame extensions in Darton: design, approvals and build

A timber frame extension in Darton 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 DartonFrom £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 districtsS75
Timber frame extension under construction with OSB sheathing and roof joists

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.

Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.

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).

How much does a timber frame extension cost in Darton?

These guide figures apply our Yorkshire and the Humber adjustment (×0.94) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.

Typical rates in Darton: £1,640 to £3,200 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£19,500 – £24,000£23,000 – £30,000£29,000 – £38,500
4 m × 5 m
20 m²
£32,500 – £39,500£38,500 – £50,000£48,500 – £64,000
5 m × 6 m
30 m²
£49,000 – £59,500£57,500 – £75,000£73,000 – £96,000

Try the guide-price tool to see a range for your own size and finish.

Is a timber frame extension right for your house?

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

Local to Darton

Postcode districts we cover around Darton include S75. The same team covers Barnsley (3 miles), Rawmarsh (12 miles), Rotherham (13 miles), Adwick le Street (14 miles), all within easy reach.

For homes towards West Yorkshire, Wakefield is around 7 miles away. Homes across Yorkshire and the Humber range from back-to-back and through terraces to large suburban semis, and extension options vary with them.

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.

  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

    Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.

Questions people ask about timber frame extensions

Can I see a price before committing to anything?

Yes. The guide prices on this page are adjusted for Darton, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.

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

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 Darton?

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 £1,640 to £3,200 per m² including VAT.

Book a free site visit in Darton

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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