Two-storey wraparound extensions in Thurso
For a two-storey wraparound extension in Thurso, the first questions are always the same: how big, which approvals, and what it will cost. This page answers all three for the Highlands, Moray and Islands.
We take on projects in Thurso by arrangement. Site visits here aren't free as standard, and we'll agree travel costs with you in writing first.
What we'd confirm first for a project in Thurso.
- Postcode districts
- KW12 and KW14
- County / area
- The Highlands, Moray and Islands, Scotland
- Price region
- Scotland
- Guide price
- £113,000–£155,500 (£2,020–£2,770 per m²)
- Approval route
- Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.
- Nearest towns
- Wick (18.9 miles), Tain (57.3 miles), Lossiemouth (60.9 miles)
- Distance to Inverness
- about 81.1 miles
- First visit
- By arrangement
About a two-storey wraparound extension
A two-storey wraparound extension suits a house with space both beside it and behind it, where you want to transform the layout rather than add a single room. You get one design for the whole L-shape, the planning application, structural design for the corner and the openings into the house, a building warrant and the build, managed by us and carried out by vetted teams working under S&K.
We cover Thurso (KW12 and KW14) and the places around it, including Wick (18.9 miles), Tain (57.3 miles) and Lossiemouth.
What it costs in Thurso
Most of the cost of a two-storey wraparound extension is set by its size and specification. For Thurso and the rest of Scotland, our guide is £2,020–£2,770 per m² including VAT, so about £113,000–£155,500 for an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). Keep a contingency of around 10% for things nobody can see until the ground is opened up.
| Spec | Per m² | An L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) |
|---|---|---|
| Essential | £1,860–£2,550 per m² | £104,000–£143,000 |
| Standard | £2,020–£2,770 per m² | £113,000–£155,500 |
| Premium | £2,430–£3,330 per m² | £136,000–£186,500 |
Planning and building standards in Thurso
In Scotland, a two-storey wraparound would need to be at least 10 m from every boundary to be permitted development under Class 1B, and not on an elevation fronting a road. That is rarely possible, so plan for a householder planning application, which costs £371 and is decided within two months, followed by a building warrant before work starts.
Approval in Scotland: Householder planning application: £371. Councils have two months to decide a local planning application.
Building standards: A building warrant from the council's building standards service before work starts, and a completion certificate at the end. Scotland uses its own Technical Handbooks.
Design points for Thurso homes
The corner post
At the outside corner of the L, there is no existing wall to carry the floor above. Opening the ground floor fully usually means a steel frame or a corner post, and the engineer's design sets how slim it can be. We decide early whether you want a clear corner or a visible post.
Two roofs that meet
A wraparound needs the side roof and rear roof to join cleanly, often with a valley or hip where they meet. Getting pitches and ridge heights right keeps rainwater moving and avoids a bulky mass at the back corner, which neighbours and planners notice.
How we'd run your project
Visit by arrangement
We agree a visit to your home in Thurso and any travel costs with you in writing first, then look at the structure, access and boundaries.
Get it approved
Once you're happy with the design we submit it to the council for Thurso and deal with any questions from the planning officer.
Detail and price
Construction drawings, engineer's calculations and building warrant approval, then a written fixed price for the build.
On site
One project lead runs the job, keeps you updated and arranges inspections at each stage until completion.
Questions about two-storey wraparound extensions in Thurso
Who handles building standards for a project in Thurso?
We handle it as part of the project. What's needed in Scotland: a building warrant from the council's building standards service before work starts, and a completion certificate at the end. Scotland uses its own Technical Handbooks. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.
How much does a two-storey wraparound extension cost in Thurso?
Our guide for Scotland, which covers Thurso, is £2,020–£2,770 per m² including VAT. A typical project with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) comes to about £113,000–£155,500. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.
Do I need planning permission for a two-storey wraparound extension in Thurso?
Thurso is in Scotland. Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.
How much floor space does a wraparound extension add?
It depends on the width of the side plot and the depth at the rear. Our guide prices are based on a typical wraparound with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). Yours may be larger or smaller, and the measured survey shows what your plot can take.
Does a wraparound extension need steel?
Almost always. Opening the corner of the house and the old rear wall to make one open-plan space means steel beams, and often a steel post or frame at the outside corner. The structural engineer sizes these, and the steel is ordered once the design is fixed, which is one reason a wraparound needs careful sequencing.
Nearby
Close to Thurso? We work across the area, including:
Other extensions in Thurso
- Rear
- Side
- Part two-storey
- Over a garage
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Thurso · Two-storey wraparound extensions across the Highlands, Moray and Islands
The quickest next step is a visit. We'll look at your house in Thurso and give you an honest view of the options.