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Flat roof extensions in Motherwell

Planning a flat roof extension in Motherwell? We survey the house, work out the planning route, draw the design and build it, so you deal with one team from the first visit to the completion certificate.

  • Guide price in MotherwellFrom £20,500 inc VAT
  • PlanningScottish householder rules; building warrant needed
  • Build time10–16 weeks on site
  • Postcode districtsML1, ML4
Flat roof of an extension with a membrane finish, a roof lantern and flat rooflights

Covering Motherwell

Our survey diary covers Motherwell, including ML1, ML4. The same team covers Bellshill (2 miles), Hamilton (2 miles), Wishaw (3 miles), Larkhall (4 miles), all within easy reach.

Scotland's housing includes sandstone villas, terraces and tenements in the cities and plenty of post-war and modern houses and bungalows elsewhere. A building warrant is needed before work starts.

When a flat roof extension makes sense

  • Extensions under first-floor windows where a pitch will not fit
  • Homeowners who want maximum light from above
  • Modern and 1930s onwards houses

Height is often what decides a flat roof. Under first-floor windows, a pitched roof may not fit at all; a flat roof keeps the extension low while still giving a good ceiling height inside.

Flat roof extension prices in Motherwell

Prices below are for Motherwell, using the Scotland factor of ×0.98. They are guide ranges including VAT for the build only, not a quote.

Typical rates in Motherwell: £1,720 to £3,280 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£20,500 – £24,500£24,000 – £31,000£30,500 – £39,500
4 m × 5 m
20 m²
£34,000 – £40,500£40,000 – £51,000£50,500 – £66,000
5 m × 6 m
30 m²
£51,000 – £60,500£60,000 – £76,500£76,000 – £98,500

Want a range for your exact size? The guide-price tool takes about a minute.

Will the council need to approve it?

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.

The planning position for a specific Motherwell address depends on its history and any designations, which is why we check it at the first visit.

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.

From first visit to completion

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

    It starts with a visit to your house to measure, check access and talk through ideas and budget.

  2. Design and approvals

    Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.

  3. Fixed written price

    You receive a written, itemised price and programme. Nothing starts until you are happy with it.

  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 flat roof extensions

Do I need building regulations approval in Motherwell?

Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.

Can I see a price before committing to anything?

Yes. The guide prices on this page are adjusted for Motherwell, 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 Motherwell 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.

Are flat roof extensions cheaper?

Usually slightly, because there is less roof structure and no tiles. Our guide range is about £1,720 to £3,280 per m² including VAT.

Can I walk on a flat roof extension?

Only for maintenance unless it is designed as a terrace. A roof terrace or balcony needs planning permission and a different structure.

Book a free site visit in Motherwell

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 .

Book a free site visit

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