Fort William, Highlands and Islands
Single-storey rear extension in Fort William
Single-storey rear extension in Fort William: ground-floor space across the back of the house, usually for a kitchen, dining or family room. We measure the house, show you what the rules allow, price it in writing and build it.
Fort William is covered from our Highlands and Islands round, including PH33. A single-storey rear extension in Fort William is mostly built from the garden side, so the house stays usable for most of the job.
Ask about a site visit
Visits here are by arrangement; we'll confirm before booking.
Fort William is outside our regular coverage, so visits and projects here are by arrangement: we confirm whether we can take the job, and agree any travel costs, before the first visit.
How much does a single-storey rear extension cost in Fort William?
For Fort William we work from the Scotland rate: £1,800–£2,940 per square metre of new floor, including VAT, standard specification. Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,500 |
| 4 m wide × 5 m deep (20 m²) | £36,000–£59,000 |
| 4 m wide × 6 m deep (24 m²) | £43,500–£70,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a single-storey rear extension in Fort William?
Planning for a single-storey rear extension in Fort William follows the Scottish householder rules.
In Scotland a single-storey rear extension can be permitted development under Class 1A: eaves no higher than 3 metres and an overall height of 4 metres, and where any part is within 1 metre of a boundary it can project no more than 3 metres on a terraced house or 4 metres on other houses. The rights do not apply in conservation areas, and a building warrant is still needed before work starts.
Scotland has no larger-extension prior approval route; extensions beyond permitted development need a planning application.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Fort William like to extend?
Traditional stone houses sit alongside modern bungalows and timber-frame homes around Fort William. A lighter, contrasting addition at the back often suits older stone houses better than trying to copy the walling.
How a single-storey rear extension in Fort William comes together
Survey visit
We measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for the building warrant.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the accepted completion certificate and any guarantees from suppliers.
Single-storey rear extensions near Fort William
We also build single-storey rear extensions in nearby Inverness (56.6 miles) and Crieff (57.3 miles).
- Single-storey rear extension in Inverness
- Single-storey rear extension in Crieff
- Single-storey rear extension in Helensburgh
- Single-storey rear extension in Gourock
- Single-storey rear extension in Greenock
Other work in Fort William:
FAQ
Single-storey rear extension questions in Fort William
Do I need planning permission for a rear extension in Fort William?
Many single-storey rear extensions are permitted development under Class 1A, but not in conservation areas; you always need a building warrant before work starts.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Can I stay in the house during the build?
Usually yes. The noisiest, dustiest stage, removing the back wall, is kept to the final weeks and screened off. Most families set up a temporary kitchen elsewhere in the house.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What postcode areas do you cover around Fort William?
Including PH33, and the surrounding Highlands and Islands area.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.