Prestonpans · Edinburgh and the Lothians

Two-storey side extensions in Prestonpans

Want to stay in Prestonpans but need more space? A two-storey side extension adds floor area on two levels without giving up much garden. Here's what's involved.

Useful details for planning a two-storey side extension in Prestonpans.

Postcode districts
EH32
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
Cockenzie (0.8 miles), Tranent (1.5 miles), Musselburgh (3 miles)
Distance to Edinburgh
about 8.4 miles
First visit
Free, no obligation

About a two-storey side extension

A two-storey side extension suits a detached or semi-detached house with a side garden, driveway or garage wide enough to build on. You get a design that sits comfortably on the street, a planning application or permitted development check depending on your nation, structural design, a building warrant and the build itself. We manage the whole process, and the work is carried out by vetted teams working under S&K.

We cover postcode district EH32 in and around Prestonpans, along with neighbouring Cockenzie, Tranent and Musselburgh.

What it costs in Prestonpans

Most of the cost of a two-storey side extension is set by its size and specification. For Prestonpans and the rest of Scotland, our guide is £1,930–£2,580 per m² including VAT, so about £81,000–£108,500 for a 3 m × 7 m footprint on two floors (42 m² of new floor space). We'll give you a written design-stage price first, then a fixed build price once the drawings are agreed.

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 Prestonpans

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 Prestonpans homes

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.

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.

How we'd run your project

  1. Start at your house

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

  2. 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.

  3. Price it properly

    Once the engineer's calculations are in, we fix the build price in writing, with a clear list of what's included.

  4. Build

    Foundations, walls, floor, roof, windows, then first and second fix. We break through into the house as late as we can.

Questions about two-storey side extensions in Prestonpans

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

Prestonpans 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.

Which postcodes do you cover around Prestonpans?

We cover Prestonpans (EH32) and nearby places including Cockenzie, Tranent and Musselburgh, plus the rest of Edinburgh and the Lothians. The first site visit is free.

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.

How much does a two-storey side extension cost in Prestonpans?

Our guide for Scotland, which covers Prestonpans, is £1,930–£2,580 per m² including VAT. A typical project with a 3 m × 7 m footprint on two floors (42 m² of new floor space) comes to about £81,000–£108,500. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.

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

Other towns near Prestonpans:

Other extensions in Prestonpans

All two-storey extension services in Prestonpans · 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 Prestonpans.

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