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Thurso timber frame extensions, designed and built

Thurso projects are quoted by arrangement: we plan the design, approvals and build carefully around travel and material deliveries, and confirm any travel costs up front.

  • Guide price in ThursoFrom £20,500 inc VAT
  • PlanningScottish householder rules; building warrant needed
  • Build time8–14 weeks on site
  • Postcode districtsKW14
Timber frame extension under construction with OSB sheathing and roof joists

Timber frame extension prices in Thurso

Labour and material costs vary across the UK, so for Thurso we use our Scotland factor (×0.98). The ranges include VAT and exclude design, structural and council fees.

Typical rates in Thurso: £1,720 to £3,330 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£20,500 – £25,000£24,000 – £31,500£30,500 – £40,000
4 m × 5 m
20 m²
£34,000 – £41,500£40,000 – £52,000£50,500 – £67,000
5 m × 6 m
30 m²
£51,000 – £62,000£60,000 – £78,000£76,000 – £100,000

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

Planning rules that apply in Thurso

In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.

Homes in conservation areas, national scenic areas and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.

Scotland has no Party Wall Act. Where work affects a shared wall or a neighbour's land, we agree access, protection and making good with your neighbour in writing before work starts.

In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.

Applications are decided by your council as planning authority.

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

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.

Local to Thurso

Our survey diary covers Thurso, including KW14. Island and remote projects are planned individually, with travel, deliveries and accommodation for the team agreed before the survey.

Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.

How the project works

Visits to Thurso are arranged around travel; we confirm any travel costs in writing before the survey.

  1. Site visit by arrangement

    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.

Common questions in Thurso

Can I see a price before committing to anything?

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

Will my neighbours in Thurso be involved?

If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.

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

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

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 £1,720 to £3,330 per m² including VAT.

Talk to us about a project in Thurso

We will talk through the project, the planning position and how we would organise the visit and the build.

  • Site visit arranged around travel, costs agreed first
  • 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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