Part single, part two-storey extensions in Stornoway
If you live in Stornoway and need more room without moving, a part single, part two-storey extension is worth a serious look. We handle the drawings, approvals, structure and build.
We take on projects in Stornoway by arrangement. Site visits here aren't free as standard, and we'll agree travel costs with you in writing first.
Useful details for planning a part single, part two-storey extension in Stornoway.
- Postcode districts
- HS1 and HS2
- County / area
- The Highlands, Moray and Islands, Scotland
- Price region
- Scotland
- Guide price
- £67,500–£93,000 (£1,880–£2,580 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
- Dingwall (83.5 miles), Alness (85.8 miles), Invergordon (89 miles)
- Distance to Inverness
- about 94.2 miles
- First visit
- By arrangement
About a part single, part two-storey extension
A part single, part two-storey extension suits you if you want a generous ground floor but only need one extra room upstairs, or if a full two-storey design would affect a neighbour too much. You get design options that test where the two-storey part works best, the approvals your nation needs, structural design, a building warrant and the build, carried out by vetted teams working under S&K.
Stornoway sits about 94.2 miles from Inverness. Closer to home, Dingwall is 83.5 miles away and Alness 85.8 miles.
What it costs in Stornoway
In Scotland, which includes Stornoway, we'd expect a part single, part two-storey extension to cost around £67,500–£93,000 for a 6 m × 4 m ground floor and a first floor over half of it (36 m² in total), or £1,880–£2,580 per m² including VAT. We'll give you a written design-stage price first, then a fixed build price once the drawings are agreed.
| Spec | Per m² | A 6 m × 4 m ground floor and a first floor over half of it (36 m² in total) |
|---|---|---|
| Essential | £1,730–£2,380 per m² | £62,500–£85,500 |
| Standard | £1,880–£2,580 per m² | £67,500–£93,000 |
| Premium | £2,260–£3,100 per m² | £81,000–£111,500 |
Planning and building standards in Stornoway
In Scotland, because part of the extension is more than one storey, it is assessed under Class 1B, which needs at least 10 m to every boundary for permitted development. On most plots that is not possible, so the extension needs a householder application (£371, decided within two months). A building warrant is also needed before any 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 Stornoway homes
The roof junction
Where the single-storey roof meets the two-storey wall you need a sound weathering detail, usually a lead or similar flashing, and enough height for roof lights or a lantern. We set the roof falls and the upstairs window sill heights together so they do not clash.
Structure at the step
The first-floor wall above often sits over the new open-plan space, so it needs a steel beam or frame to carry it. Loads come down at different points than in a full two-storey design, and the engineer sizes the foundations to suit each part.
How we'd run your project
Visit by arrangement
We agree a visit to your home in Stornoway and any travel costs with you in writing first, then look at the structure, access and boundaries.
Design and approvals
We draw the extension and check it against the rules for Scotland, then apply for planning permission or a certificate of lawfulness, whichever fits.
Technical design
We prepare the building warrant drawings, structural calculations and specification so the build price can be fixed.
Build and sign-off
Vetted teams working under S&K build the extension, and we arrange the completion certificate at the end.
Questions about part single, part two-storey extensions in Stornoway
Do I need planning permission for a part single, part two-storey extension in Stornoway?
Stornoway 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.
Which postcodes do you cover around Stornoway?
We cover Stornoway (HS1 and HS2) and nearby places including Dingwall, Alness and Invergordon, plus the rest of the Highlands, Moray and Islands. Visits and projects in Stornoway are by arrangement, with travel costs agreed in writing first.
Who handles building standards for a project in Stornoway?
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.
Which side should the two-storey part go on?
Usually the side furthest from the nearest neighbour's windows, so the single-storey part sits nearest them and keeps their light. Other factors are where the stairs land upstairs, which room needs the extra space and where drains run. We sketch options at the design stage and explain which is most likely to be approved.
Can the single-storey part be deeper than the two-storey part?
With planning permission, yes, and that is often the point of the design: the ground floor projects further into the garden while the first floor stays back from neighbours. Under permitted development, the depth limits for extensions of more than one storey can apply to the whole extension, so we confirm which route applies before drawings are finalised.
Nearby
Other towns near Stornoway:
Other extensions in Stornoway
- Rear
- Side
- Wraparound
- Over a garage
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Stornoway · Part single, part two-storey extensions across the Highlands, Moray and Islands
Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in Stornoway.