Crieff, Perth and Kinross
Single-storey rear extension in Crieff
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Crieff and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Crieff and its postcode districts PH7 are part of our Perth and Kinross coverage. A single-storey rear extension in Crieff is mostly built from the garden side, so the house stays usable for most of the job.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a single-storey rear extension cost in Crieff?
A single-storey rear extension in Crieff is priced at £1,800–£2,940 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a single-storey rear extension in Crieff?
Whether your single-storey rear extension in Crieff needs a planning application depends on its size, your house and any local restrictions.
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. At the first visit we measure what is there now and tell you which route fits: permitted development or a planning application, plus the building warrant.
What are homes in Crieff like to extend?
Post-war semis and terraces are common around Crieff, and many have room for a single-storey rear extension within Class 1A limits.
How a single-storey rear extension in Crieff comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning or permitted development, the building warrant, structural design and neighbour agreements are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the accepted completion certificate.
Single-storey rear extensions near Crieff
Neighbouring places we cover include Auchterarder (7.3 miles) and Perth (15.7 miles).
- Single-storey rear extension in Auchterarder
- Single-storey rear extension in Perth
- Single-storey rear extension in Scone
- Single-storey rear extension in Alloa
- Single-storey rear extension in Stirling
Other work in Crieff:
FAQ
Single-storey rear extension questions in Crieff
Do I need a party wall agreement?
Scotland has no Party Wall Act; we agree access and protection with your neighbour in writing instead.
Do I need planning permission for a rear extension in Crieff?
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.
Does it add value to the house?
Nationwide's October 2025 house price research found that a 10% increase in floor area is linked to about 5% higher value on average. It is a guide, not a promise; local agents can tell you what extended homes on your street sell for.
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.
Is the site visit in Crieff free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do you handle building control in Crieff?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.