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Double-storey extensions for homes in Alloa

Thinking about a double-storey extension for your Alloa home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.

  • Guide price in AlloaFrom £37,000 inc VAT
  • PlanningUsually planning permission; building warrant needed
  • Build time16–24 weeks on site
  • Postcode districtsFK10
Two-storey rear extension on a brick semi-detached house with a hipped roof

Covering Alloa

Site visits are available across Alloa (FK10). The same team covers Stirling (6 miles), Grangemouth (8 miles), Falkirk (8 miles), all within easy reach.

Just over the Fife border, Dunfermline is about 13 miles away. 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.

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.

Homes in conservation areas, national scenic areas and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.

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.

Scotland has no Party Wall Act. Where work affects a shared wall or a neighbour's land, we agree access, protection and making good with your neighbour in writing before work starts.

Applications are decided by your council as planning authority.

Double-storey extension prices in Alloa

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

Typical rates in Alloa: £1,520 to £2,940 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m, two floors
24 m²
£37,000 – £44,500£42,000 – £55,500£54,000 – £71,000
4 m × 4 m, two floors
32 m²
£48,500 – £58,500£56,000 – £74,000£72,000 – £94,500
4 m × 6 m, two floors
48 m²
£72,500 – £87,500£84,500 – £111,000£108,000 – £141,500

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

What we take care of

  • Measured survey, design and planning drawings
  • Breaking through at both levels, stairs and landing changes where needed
  • Insulation, plastering, electrics and plumbing to finish
  • Ground and first floor structure, roof tied into the existing roof

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

    We visit your Alloa home, measure up, talk through what you want and check the planning position.

  2. Design and approvals

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  3. Fixed written price

    We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.

  4. Build and sign-off

    Work is carried out to the agreed programme, inspected by building control and signed off at the end.

Double-storey extension questions answered

Who do I contract with for a double-storey extension in Alloa?

Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.

How long does a double-storey extension take to build in Alloa?

On site, typically 16 to 24 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.

Will my neighbours in Alloa 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.

Is a two-storey extension cheaper per square metre?

Usually. Our guide range is about £1,520 to £2,940 per m² of new floor area including VAT, compared with £1,720 to £3,330 per m² for single-storey work, because the foundations and roof are shared across two floors.

Book a free site visit in Alloa

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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