Fort William house extensions
We take on house extensions in Fort William by arrangement. Because of travel and logistics, we agree the programme and any travel costs in writing before the survey.
- Postcode districtsPH33
- Price regionScotland (×0.98)
- Planning rulesScotland
- Site visitBy arrangement
Choosing the right extension in Fort William
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.
For many houses here, orangery extensions, single-storey rear extensions or double-storey extensions gives the most useful space for the budget.
Guide prices for Fort William
Every figure below is a guide for Fort William, adjusted for Scotland build costs (×0.98) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £29,000 – £38,000 |
| Wraparound extensions | 25 m² | £56,000 – £71,500 |
| Orangery extensions | 16 m² | £43,500 – £55,000 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Double-storey extensions | 32 m² | £56,000 – £74,000 |
Areas we cover around Fort William
We cover Fort William and the postcode districts PH33. Island and remote projects are planned individually, with travel, deliveries and accommodation for the team agreed before the survey.
Planning and building control in Fort William
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.
In a conservation area or national scenic area the householder permitted development rights are more limited, listed homes need listed building consent, and if rights have been removed by a condition or direction, any extension needs an application.
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.
Applications are decided by your council as planning authority.
All extension types we build in Fort William
- Side return extensions · from £17,500
- Flat roof extensions · from £20,500
- Home office extensions · from £15,500
- Bedroom extensions · from £25,000
- Side extensions · from £21,500
- Timber frame extensions · from £20,500
- Single-storey rear extensions · from £20,500
- Annexe extensions · from £53,500
- Pitched roof extensions · from £21,500
- Bungalow extensions · from £25,500
- Wraparound extensions · from £35,000
- Extensions over a garage · from £23,500
- Orangery extensions · from £29,000
- Planning permission for extensions · from £300
- Glass box extensions · from £29,000
- Kitchen extensions · from £26,000
- Conservatory replacement extensions · from £19,500
- Double-storey extensions · from £37,000
- Building regulations for extensions · from £850
- Porch extensions · from £3,900
- Utility and boot room extensions · from £13,500
- Extension plans and drawings · from £1,150
Site visit by arrangement
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Fort William
How much does an extension cost in Fort William?
Using our Scotland factor (×0.98), a standard-spec single-storey extension of 20 m² is a guide £40,000 to £51,000 including VAT, and a 32 m² two-storey extension £56,000 to £74,000. Your written price follows the survey.
How long does an extension take in Fort William?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Fort William, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you cover all of Fort William?
Yes, by arrangement: travel and any associated costs are agreed in writing before the survey.
Who do I contract with?
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.
Talk to us about a project in Fort William
We will talk through the project, the planning position and how we would organise the visit and the build.
- Site visit arranged around travel, costs agreed first
- 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 .
Send us your project details
Tell us a little about the project and we will arrange a time.