Lochgilphead · Argyll and Bute

Two-storey side extensions in Lochgilphead

Homes in Lochgilphead with a bit of space to the side or rear can often take a two-storey side extension. We'll tell you honestly whether yours can, and what approvals it needs.

We take on projects in Lochgilphead by arrangement. Site visits here aren't free as standard, and we'll agree travel costs with you in writing first.

The basics for Lochgilphead at a glance.

Postcode districts
PA30 and PA31
County / area
Argyll and Bute, 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
Rothesay (20.1 miles), Dunoon (20.4 miles), Gourock (24.3 miles)
Distance to Helensburgh
about 27.3 miles
First visit
By arrangement

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 Lochgilphead we also work in Rothesay, Dunoon and Gourock, and across the rest of Argyll and Bute. Postcode districts in and near Lochgilphead: PA30 and PA31.

What it costs in Lochgilphead

Using our Scotland rates, a two-storey side extension with a 3 m × 7 m footprint on two floors (42 m² of new floor space) comes to about £81,000–£108,500, including VAT. Bigger or more glazed designs cost more per m². Keep a contingency of around 10% for things nobody can see until the ground is opened up.

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 Lochgilphead

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 Lochgilphead 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. Visit by arrangement

    We agree a visit to your home in Lochgilphead and any travel costs with you in writing first, then look at the structure, access and boundaries.

  2. Plans, then approval

    Measured survey, design, then the right approval route for your house. We explain each step before we take it.

  3. Technical design

    We prepare the building warrant drawings, structural calculations and specification so the build price can be fixed.

  4. Build and hand over

    We manage the build from groundworks to decoration-ready finish and hand over with the completion paperwork.

Questions about two-storey side extensions in Lochgilphead

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.

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

Lochgilphead 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 Lochgilphead?

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.

Which postcodes do you cover around Lochgilphead?

We cover Lochgilphead (PA30 and PA31) and nearby places including Rothesay, Dunoon and Gourock, plus the rest of Argyll and Bute. Visits and projects in Lochgilphead are by arrangement, with travel costs agreed in writing first.

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 site visit before any drawings are prepared.

Nearby

Other towns near Lochgilphead:

Other extensions in Lochgilphead

All two-storey extension services in Lochgilphead · Two-storey side extensions across Argyll and Bute

The quickest next step is a visit. We'll look at your house in Lochgilphead and give you an honest view of the options.

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