Perth house extensions
We design and build house extensions for homes in Perth and the surrounding Perth and Kinross area, with guide prices adjusted for the region.
- Postcode districtsPH1, PH2
- Price regionScotland (×0.98)
- Planning rulesScotland
- Site visitFree, no obligation
Approvals for an extension in Perth
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.
Popular extension prices in Perth
We publish guide prices so you can budget before anyone visits. For Perth they are adjusted by ×0.98, the factor we use across Scotland.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Kitchen extensions | 20 m² | £41,000 – £52,000 |
| Orangery extensions | 16 m² | £43,500 – £55,000 |
| Double-storey extensions | 32 m² | £56,000 – £74,000 |
| Extensions over a garage | 12 m² | £24,500 – £32,000 |
| Conservatory replacement extensions | 14 m² | £29,000 – £38,000 |
What works best for Perth houses?
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
The types we would usually look at first for a home in Perth are bungalow extensions, orangery extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Areas we cover around Perth
Across PH1, PH2, we can visit, measure and advise. Nearby, we also take on projects in Blairgowrie (15 miles), Crieff (15 miles). For homes towards Fife, Cupar is around 16 miles away.
All extension types we build in Perth
- Kitchen extensions · from £26,000
- Building regulations for extensions · from £850
- Glass box extensions · from £29,000
- Pitched roof extensions · from £21,500
- Home office extensions · from £15,500
- Bedroom extensions · from £25,000
- Utility and boot room extensions · from £13,500
- Wraparound extensions · from £35,000
- Double-storey extensions · from £37,000
- Orangery extensions · from £29,000
- Annexe extensions · from £53,500
- Planning permission for extensions · from £300
- Side return extensions · from £17,500
- Timber frame extensions · from £20,500
- Porch extensions · from £3,900
- Single-storey rear extensions · from £20,500
- Conservatory replacement extensions · from £19,500
- Extensions over a garage · from £23,500
- Side extensions · from £21,500
- Bungalow extensions · from £25,500
- Flat roof extensions · from £20,500
- Extension plans and drawings · from £1,150
Free site visit
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
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Perth
How much does an extension cost in Perth?
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.
Do you cover all of Perth?
Yes, including the surrounding parts of Perth and Kinross. Site visits are free and there is no obligation.
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 Perth, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Perth
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.