Bathgate · Edinburgh and the Lothians

Two-storey side extensions in Bathgate

Adding a two-storey side extension in Bathgate gives you two new rooms stacked on one footprint. Here's how we'd approach it, what it typically costs and the rules that apply in Scotland.

Quick reference for homeowners in Bathgate.

Postcode districts
EH48
County / area
Edinburgh and the Lothians, 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
Armadale (2.5 miles), Whitburn (2.9 miles), Livingston (4.7 miles)
Distance to Edinburgh
about 17.7 miles
First visit
Free, no obligation

About a two-storey side extension

A two-storey side extension is a new two-floor addition built into the space beside your house, often over a driveway or side passage. It typically adds one or two bedrooms upstairs and a utility, study or larger kitchen below, without giving up rear garden.

Around Bathgate we also work in Armadale, Whitburn and Livingston, and across the rest of Edinburgh and the Lothians. Postcode district in and near Bathgate: EH48.

What it costs in Bathgate

Expect a two-storey side extension in Bathgate to land somewhere around £81,000–£108,500 for a 3 m × 7 m footprint on two floors (42 m² of new floor space). Our Scotland guide rate is £1,930–£2,580 per m², including VAT. Design fees, structural calculations and approval fees are separate and listed on our prices page.

SpecPer m²A 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 Bathgate

In Scotland, a two-storey side extension is only permitted development under Class 1B if no part is within 10 m of any boundary and it is not on an elevation fronting a road. Side extensions rarely meet this, so plan for a householder application (£371, decided within two months) and a building warrant from the council 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 Bathgate homes

Set-down and set-back

Councils usually want a two-storey side extension to look subordinate to the house. Setting the front wall back from the main front and dropping the ridge slightly below the main roof helps it read as an addition, and is often expected in local design guidance.

Matching the ridge and roof

A hipped house usually needs a hipped extension roof, and a gabled house a gable. Matching the pitch, tiles, ridge detail and brick bond is what makes a side extension look original rather than added, and councils look closely at it on a front-facing addition.

How we'd run your project

  1. Start at your house

    We come to your home in Bathgate, measure up, check the ground floor walls and roof structure, and note anything near the boundaries.

  2. Drawings, then consent

    We draw the scheme, check it against the rules in Scotland, and take it through the right consent with the council.

  3. Detail and price

    Construction drawings, engineer's calculations and building warrant approval, then a written fixed price for the build.

  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 side extensions in Bathgate

Do I need planning permission for a two-storey side extension in Bathgate?

Bathgate 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.

Who handles building standards for a project in Bathgate?

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.

How long does a two-storey side 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.

Which postcodes do you cover around Bathgate?

We cover Bathgate (EH48) and nearby places including Armadale, Whitburn and Livingston, plus the rest of Edinburgh and the Lothians. The first site visit is free.

Can I build a two-storey side extension over my driveway?

Yes, if the drive is wide enough for a useful room and the council accepts the design. You may lose off-road parking, which some councils weigh up, and the foundations need to suit the ground below. We check parking, drains and meter positions at the free site visit before any drawings are prepared.

Nearby

We also cover places near Bathgate, including:

Other extensions in Bathgate

All two-storey extension services in Bathgate · Two-storey side extensions across Edinburgh and the Lothians

Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in Bathgate.

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