Two-storey rear extensions in Isle of Mull
Thinking about a two-storey rear extension in Isle of Mull? We design it, take it through the approvals it needs and build it, with one team responsible from the first visit to the final certificate.
We take on projects in Isle of Mull by arrangement. Site visits here aren't free as standard, and we'll agree travel costs with you in writing first.
Quick reference for homeowners in Isle of Mull.
- Postcode districts
- PA62, PA63, PA64, PA65, PA71 and PA72
- County / area
- Argyll and Bute, Scotland
- Price region
- Scotland
- Guide price
- £52,500–£71,000 (£1,880–£2,540 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
- Isle of Islay (49.1 miles), Oban (11.8 miles), Lochgilphead (31.2 miles)
- Distance to Helensburgh
- about 50.5 miles
- First visit
- By arrangement
About a two-storey rear extension
A two-storey rear extension suits you if you need more room on both floors and have a reasonably deep garden. You get one team for the whole job: a measured survey, the design, a check on whether permitted development applies, planning drawings where they are needed, structural design, a building warrant and the build itself, carried out by vetted teams working under S&K. Every project starts with a site visit.
We cover postcode districts PA62, PA63, PA64, PA65, PA71 and PA72 in and around Isle of Mull, along with neighbouring Isle of Islay, Oban and Lochgilphead.
What it costs in Isle of Mull
Our guide for Scotland is £1,880–£2,540 per m² including VAT. On a project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space), that puts a two-storey rear extension in Isle of Mull at roughly £52,500–£71,000. Design fees, structural calculations and approval fees are separate and listed on our prices page.
| Spec | Per m² | A 4 m × 3.5 m footprint on two floors (28 m² of new floor space) |
|---|---|---|
| Essential | £1,730–£2,330 per m² | £48,500–£65,500 |
| Standard | £1,880–£2,540 per m² | £52,500–£71,000 |
| Premium | £2,260–£3,050 per m² | £63,000–£85,500 |
Planning and building standards in Isle of Mull
In Scotland, a two-storey rear extension is only permitted development under Class 1B if no part of it is within 10 m of any boundary, it is no higher than the house and the house is not in a conservation area. Most gardens cannot meet the 10 m test, so expect a householder application (£371, decided within two months) and 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 Isle of Mull homes
Foundations and drains
Foundations for two storeys carry more load than a single storey and may need to go deeper near trees or on clay. Rear extensions often sit near drains, so we check sewer records early, as building over or near a public sewer may need the water company's agreement.
Depth and neighbours' light
Councils check that a two-storey rear extension does not take too much light or outlook from neighbouring windows, and many use a 45-degree line drawn from the nearest habitable window. We test this at sketch stage, so the depth you are shown is one that can realistically be approved.
How we'd run your project
Visit by arrangement
We agree a visit to your home in Isle of Mull and any travel costs with you in writing first, then look at the structure, access and boundaries.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in Scotland before drawing in detail.
Structure and building standards
A structural engineer sizes the foundations and steels, and we get a building warrant before work starts.
Finish and certify
Second fix, plastering and making good, then the council's final building standards inspection and the completion paperwork.
Questions about two-storey rear extensions in Isle of Mull
Which postcodes do you cover around Isle of Mull?
We cover Isle of Mull (PA62, PA63, PA64, PA65, PA71 and PA72) and nearby places including Isle of Islay, Oban and Lochgilphead, plus the rest of Argyll and Bute. Visits and projects in Isle of Mull are by arrangement, with travel costs agreed in writing first.
Who handles building standards for a project in Isle of Mull?
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 long does a two-storey rear extension take?
Allow 4 to 8 weeks for survey and design, then the approval period (councils have two months to decide a local planning application), then 4 to 8 weeks of technical design, which can overlap. The build itself usually takes 14 to 20 weeks, longer for large or complex designs.
Do I need planning permission for a two-storey rear extension in Isle of Mull?
Isle of Mull 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.
Will a two-storey rear extension block my neighbour's light?
It can if it is too deep or too close to the boundary, which is why councils look closely at its effect on neighbouring windows and gardens. We test the design against light and outlook early, keep the first floor shorter or set in where needed, and use a hipped roof to reduce bulk on the boundary side.
Nearby
We also cover places near Isle of Mull, including:
Other extensions in Isle of Mull
- Side
- Wraparound
- Part two-storey
- Over a garage
- First floor
- Semi-detached
- Detached
- Kitchen and bedrooms
- Bedroom and en-suite
All two-storey extension services in Isle of Mull · Two-storey rear extensions across Argyll and Bute
Send us your postcode and a few details. We'll get back to you to arrange a visit and talk through your options.