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Single-storey rear extensions across Lossiemouth

A single-storey extension in Lossiemouth starts with the right design and the right approval route. We take care of both, then build it with our own project management.

  • Guide price in LossiemouthFrom £20,500 inc VAT
  • PlanningScottish householder rules; building warrant needed
  • Build time10–16 weeks on site
  • Postcode districtsIV31
Single-storey rear extension in matching brick with a roof lantern and sliding doors

Single-storey extension prices in Lossiemouth

These guide figures apply our Scotland adjustment (×0.98) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.

Typical rates in Lossiemouth: £1,720 to £3,330 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£20,500 – £24,500£24,000 – £31,000£30,500 – £40,000
4 m × 5 m
20 m²
£34,000 – £40,500£40,000 – £51,000£50,500 – £67,000
5 m × 6 m
30 m²
£51,000 – £60,500£60,000 – £76,500£76,000 – £100,000

For a figure based on your own dimensions, use our guide-price tool.

Covering Lossiemouth

Across IV31, we can visit, measure and advise. We also work in nearby Elgin (5 miles), Forres (14 miles), Buckie (14 miles).

Nairn, in Highlands and Islands, is roughly 23 miles from Lossiemouth and also on our list. Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.

Who a single-storey extension suits

  • Semi-detached and detached houses with a usable rear garden
  • Terraced houses that want a deeper kitchen across the full width
  • Homeowners who want open-plan living onto the garden

Depth is the big decision. Every extra metre adds floor area but also takes garden and can push you out of permitted development. We draw the room at two or three depths so you can see the trade-off in space, light and cost before anything is fixed.

Do I need planning permission in Lossiemouth?

In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.

Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.

Building close to a public sewer needs the agreement of Scottish Water, which we check during design.

In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.

Applications are decided by your council as planning authority.

Our process, step by step

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. Design and approvals

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Questions people ask about single-storey extensions

Can I see a price before committing to anything?

Yes. The guide prices on this page are adjusted for Lossiemouth, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.

Will my neighbours in Lossiemouth be involved?

If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.

Do you cover all of Lossiemouth?

Yes. We cover Lossiemouth and the surrounding parts of Moray. Site visits are free and there is no obligation.

How much does a single-storey extension cost per square metre?

Our guide range is about £1,720 to £3,330 per m² including VAT, depending on specification. A standard-spec 4 m × 5 m room usually lands at £40,000 to £51,000 in Lossiemouth, plus design and council fees.

Will I need a steel beam?

Almost always. Opening up the rear wall to join the new room to the house needs a beam, usually steel, sized by a structural engineer. It is included in our quotes.

Book a free site visit in Lossiemouth

We will measure up, check the planning position and give you honest guide figures.

  • Free, no-obligation site visit
  • Planning route checked before you spend on drawings
  • Written price once the design is agreed
  • Building control sign-off at the end

Prefer to talk? Call 0800 088 6341 or .

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