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Timber frame extensions for homes in Barnstaple

Barnstaple homeowners can use us for the whole timber frame extension project: survey, design, planning or permitted development checks, building regulations and the build itself.

  • Guide price in BarnstapleFrom £21,000 inc VAT
  • PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
  • Build time8–14 weeks on site
  • Postcode districtsEX31, EX32
Timber frame extension under construction with OSB sheathing and roof joists

Guide prices for Barnstaple

Prices below are for Barnstaple, using the South West England factor of ×1.02. They are guide ranges including VAT for the build only, not a quote.

Typical rates in Barnstaple: £1,780 to £3,470 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£21,000 – £26,000£25,000 – £32,500£31,500 – £42,000
4 m × 5 m
20 m²
£35,500 – £43,000£41,500 – £54,500£53,000 – £69,500
5 m × 6 m
30 m²
£53,500 – £64,500£62,500 – £81,500£79,500 – £104,500

For a figure based on your own dimensions, use our guide-price tool.

Included in a typical project

  • Breathable wall build-up with insulation
  • Frame design and structural calculations
  • Cladding, render or brick slip finish
  • Foundations, often lighter than masonry
  • Fire and acoustic details where needed

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.

Extensions in and around Barnstaple

Site visits are available across Barnstaple (EX31, EX32). Nearby, we also take on projects in Bideford (8 miles), Tiverton (28 miles), Exeter (34 miles), Newton Abbot (43 miles).

Launceston, in Cornwall, is roughly 34 miles from Barnstaple and also on our list. South West homes range from terraced streets in the cities to stone cottages and bungalows in the countryside, and conservation areas are common in historic centres.

Do I need planning permission in Barnstaple?

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.

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).

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

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  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 Barnstaple

Do you cover all of Barnstaple?

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

Do I need building regulations approval in Barnstaple?

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

Will my neighbours in Barnstaple 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.

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 £1,780 to £3,470 per m² including VAT.

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.

Book a free site visit in Barnstaple

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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