Two-storey extensions for detached houses in Westhill (Highlands, Moray and Islands)

Westhill (Highlands, Moray and Islands): the key facts for this kind of project.

Postcode districts: IV2
County / area: The Highlands, Moray and Islands, Scotland
Price region: Scotland
Guide price: £81,000–£108,500 (£1,930–£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: Culloden (1 mile), Inverness (2.8 miles), Nairn (12.5 miles)
Distance to Inverness: about 2.8 miles
First visit: Free, no obligation

About a two-storey extension for a detached house

A two-storey extension for a detached house is a two-floor addition to the side, rear or both of a house that stands on its own plot. Detached houses often have room on more than one side, so there is more choice of layout and fewer shared-wall issues. The design still needs to respect boundaries, neighbours' windows and the look of the house.

We cover Westhill (Highlands, Moray and Islands) (IV2) and the places around it, including Culloden (1.0 miles), Inverness (2.8 miles) and Nairn.

What it costs in Westhill (Highlands, Moray and Islands)

A guide price for Westhill (Highlands, Moray and Islands): around £81,000–£108,500 for a 3 m × 7 m footprint on two floors (42 m² of new floor space). That works out at £1,930–£2,580 per m² of new floor space, including VAT at 20%. Kitchens, bathroom fittings and flooring are priced separately so you can compare like with like.

Spec	Per m²	A 3 m × 7 m footprint on two floors (42 m² of new floor space)
Essential	£1,770–£2,380 per m²	£74,500–£100,000
Standard	£1,930–£2,580 per m²	£81,000–£108,500
Premium	£2,310–£3,100 per m²	£97,000–£130,500

Planning and building standards in Westhill (Highlands, Moray and Islands)

In Scotland, a detached house on a large plot may be able to use Class 1B permitted development if no part of the two-storey extension is within 10 m of any boundary, it is no higher than the house and is not in a conservation area. Otherwise a householder application costs £371. A building warrant is needed either way.

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 Westhill (Highlands, Moray and Islands) homes

Keeping it subordinate

Large detached houses can take a large extension, but councils still expect it to look secondary to the main house. A lower ridge, a modest set-back at the front and matching materials keep the proportions right, even on a wide plot.

Larger spans and steelwork

Bigger extensions often mean wider openings and longer spans, which need more steel and sometimes a steel frame. The engineer designs these early, because the size of the steel affects ceiling heights, floor depths and the cost.

How we'd run your project

Start at your house
We come to your home in Westhill (Highlands, Moray and Islands), measure up, check the ground floor walls and roof structure, and note anything near the 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.
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 extensions for detached houses in Westhill (Highlands, Moray and Islands)

Who handles building standards for a project in Westhill (Highlands, Moray and Islands)?

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 Westhill (Highlands, Moray and Islands)?

We cover Westhill (Highlands, Moray and Islands) (IV2) and nearby places including Culloden, Inverness and Nairn, plus the rest of the Highlands, Moray and Islands. The first site visit is free.

Do I need planning permission for a two-storey extension for a detached house in Westhill (Highlands, Moray and Islands)?

Westhill (Highlands, Moray and Islands) 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.

Can I extend a detached house on both sides?

Sometimes. With planning permission, a council may accept extensions on both sides if the house stays well proportioned and keeps gaps to the boundaries. It is more common to extend on one side and the rear, or with a wraparound. We look at the plot as a whole before suggesting more than one extension.

Is a detached house extension a better investment than moving?

It often costs less than the gap between your house and a larger one nearby, once property tax, legal fees and removal costs are counted, but that depends on your area. Extending also has limits: every street has a ceiling price. We give you build costs so you can compare them with local asking prices.

Nearby

Close to Westhill (Highlands, Moray and Islands)? We work across the area, including:

Other extensions in Westhill (Highlands, Moray and Islands)

All two-storey extension services in Westhill (Highlands, Moray and Islands) · Two-storey extensions for detached houses across the Highlands, Moray and Islands

Book a free site visit in Westhill (Highlands, Moray and Islands) and we'll tell you what's possible, what approvals you need and what the design stage would cost.