Keith · Highlands, Moray and Islands

Two-storey rear extensions in Keith

Want to stay in Keith but need more space? A two-storey rear extension adds floor area on two levels without giving up much garden. Here's what's involved.

We take on projects in Keith 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 two-storey rear extension in Keith.

Postcode districts
AB55
County / area
The Highlands, Moray and Islands, 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
Buckie (9.6 miles), Elgin (15.8 miles), Lossiemouth (17.8 miles)
Distance to Inverness
about 47.5 miles
First visit
By arrangement

About a two-storey rear extension

A two-storey rear extension is a new two-floor addition built onto the back of your house, usually giving a larger kitchen or living space on the ground floor and one or two bedrooms or a bathroom above. Because both floors share one set of foundations and one roof, it adds a lot of floor space for the garden it uses. In some cases it can be built under permitted development, depending on where you live.

Keith sits about 47.5 miles from Inverness. Closer to home, Buckie is 9.6 miles away and Elgin 15.8 miles.

What it costs in Keith

Most of the cost of a two-storey rear extension is set by its size and specification. For Keith and the rest of Scotland, our guide is £1,880–£2,540 per m² including VAT, so about £52,500–£71,000 for a 4 m × 3.5 m footprint on two floors (28 m² of new floor space). Steelwork for wide openings is the item most likely to move the figure; we'll know once the engineer has designed it.

SpecPer m²A 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 Keith

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 Keith homes

Opening up the ground floor

Knocking through the old rear wall means steel beams to carry the first floor and roof above. The structural engineer sets the beam sizes, padstones and any posts, and we plan them early so the open-plan layout you want is the one that gets built.

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

  1. Visit by arrangement

    We agree a visit to your home in Keith and any travel costs with you in writing first, then look at the structure, access and boundaries.

  2. 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.

  3. Fixed price in writing

    With approved drawings and calculations, we give you a fixed build price and a programme you can plan around.

  4. Build and sign-off

    Vetted teams working under S&K build the extension, and we arrange the completion certificate at the end.

Questions about two-storey rear extensions in Keith

How much does a two-storey rear extension cost in Keith?

Our guide for Scotland, which covers Keith, is £1,880–£2,540 per m² including VAT. A typical project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) comes to about £52,500–£71,000. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.

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.

Who handles building standards for a project in Keith?

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 postcodes do you cover around Keith?

We cover Keith (AB55) and nearby places including Buckie, Elgin and Lossiemouth, plus the rest of the Highlands, Moray and Islands. Visits and projects in Keith are by arrangement, with travel costs agreed in writing first.

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

Other towns near Keith:

Other extensions in Keith

All two-storey extension services in Keith · Two-storey rear extensions across the Highlands, Moray and Islands

Send us your postcode and a few details. We'll get back to you to arrange a visit and talk through your options.

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