Greenock, Glasgow and the Clyde
Single-storey rear extension in Greenock
Thinking about a single-storey rear extension in Greenock? Ground-floor space across the back of the house, usually for a kitchen, dining or family room. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Greenock (PA14, PA15, PA16 and PA19) as part of our Glasgow and the Clyde work. A depth of 3 to 4 metres keeps many single-storey rear extensions in Greenock within permitted development, subject to the house's planning history.
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 Greenock?
In Greenock, our guide for a single-storey rear extension is £1,800–£2,940 per square metre including VAT for a 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a single-storey rear extension in Greenock?
The planning route for a single-storey rear extension in Greenock is set by Scotland's householder rules and your council.
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 Greenock like to extend?
Greenock has sandstone villas and terraces, post-war semis and four-in-a-block flats. Flats need planning permission for an extension, and every project needs a building warrant before work starts.
How a single-storey rear extension in Greenock comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
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 Greenock
From Greenock, the nearest places we also cover are Gourock (2.4 miles) and Port Glasgow (2.9 miles).
- Single-storey rear extension in Gourock
- Single-storey rear extension in Port Glasgow
- Single-storey rear extension in Helensburgh
- Single-storey rear extension in Vale of Leven
- Single-storey rear extension in Dumbarton
Other work in Greenock:
FAQ
Single-storey rear extension questions in Greenock
Is the site visit in Greenock free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Greenock house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Will the extension make the room behind it dark?
Not if it is designed well. Rooflights or a lantern over the old back room, and a wide opening into it, keep daylight reaching the middle of the house.
Do you handle building control in Greenock?
Yes. We apply for the building warrant before work starts and submit the completion certificate at the end.
How long does a rear extension take to build in Greenock?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.