Troon house extensions
More space without moving: we plan and build extensions across Troon, with one team for the drawings, the council and the build.
- Postcode districtsKA10
- Price regionScotland (×0.98)
- Planning rulesScotland
- Site visitFree, no obligation
Where we work near Troon
Postcode districts we cover around Troon include KA10. Nearby, we also take on projects in Irvine (5 miles), Ayr (6 miles), Kilmarnock (7 miles), Kilwinning (8 miles), Saltcoats (8 miles). Just over the Renfrewshire and Inverclyde border, Newton Mearns is about 20 miles away.
Troon extension prices at a glance
Every figure below is a guide for Troon, 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) |
|---|---|---|
| Orangery extensions | 16 m² | £43,500 – £55,000 |
| Single-storey rear extensions | 20 m² | £40,000 – £51,000 |
| Kitchen extensions | 20 m² | £41,000 – £52,000 |
| Conservatory replacement extensions | 14 m² | £29,000 – £38,000 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Wraparound extensions | 25 m² | £56,000 – £71,500 |
Choosing the right extension in Troon
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
Start by comparing double-storey extensions, orangery extensions and bungalow extensions: between them they cover most of the layouts we see requested for houses like these.
Approvals for an extension in Troon
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.
Choose an extension type
- Extension plans and drawings · from £1,150
- Utility and boot room extensions · from £13,500
- Bedroom extensions · from £25,000
- Extensions over a garage · from £23,500
- Side extensions · from £21,500
- Annexe extensions · from £53,500
- Pitched roof extensions · from £21,500
- Building regulations for extensions · from £850
- Conservatory replacement extensions · from £19,500
- Timber frame extensions · from £20,500
- Planning permission for extensions · from £300
- Double-storey extensions · from £37,000
- Glass box extensions · from £29,000
- Single-storey rear extensions · from £20,500
- Porch extensions · from £3,900
- Home office extensions · from £15,500
- Wraparound extensions · from £35,000
- Side return extensions · from £17,500
- Kitchen extensions · from £26,000
- Orangery extensions · from £29,000
- Bungalow extensions · from £25,500
- Flat roof extensions · from £20,500
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Troon
How much does an extension cost in Troon?
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.
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Troon, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you cover all of Troon?
Yes, including the surrounding parts of Ayrshire. Site visits are free and there is no obligation.
Book a free site visit in Troon
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- 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 .
Book a free site visit
Tell us a little about the project and we will arrange a time.