Renfrew, Glasgow and the Clyde
Two-storey rear extension in Renfrew
Thinking about a two-storey rear extension in Renfrew? A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Renfrew (PA4) as part of our Glasgow and the Clyde work. In Glasgow and the Clyde we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 two-storey rear extension cost in Renfrew?
A two-storey rear extension in Renfrew is priced at £1,710–£2,560 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 × 5 m footprint, two floors (30 m²) | £51,500–£77,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £82,000–£123,000 |
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 two-storey rear extension in Renfrew?
Here is how the rules in Scotland apply to a two-storey rear extension in Renfrew.
Scottish Class 1B rights for extensions of more than one storey need a 10 metre gap to every boundary, which few gardens have. Expect a planning application as well as a building warrant for a double-storey rear extension.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Renfrew like to extend?
Post-war semis and terraces are common around Renfrew, and many have room for a single-storey rear extension within Class 1A limits.
How a two-storey rear extension in Renfrew 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.
Approvals
Permitted development check or planning application, then building warrant drawings and structural calculations, plus a written agreement with neighbours for any shared-wall work.
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.
Two-storey rear extensions near Renfrew
Close by, we work in Clydebank, about 2.1 miles away, and Erskine, about 3.0 miles away.
- Two-storey rear extension in Clydebank
- Two-storey rear extension in Erskine
- Two-storey rear extension in Paisley
- Two-storey rear extension in Bearsden
- Two-storey rear extension in Barrhead
Other work in Renfrew:
FAQ
Two-storey rear extension questions in Renfrew
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
What postcode areas do you cover around Renfrew?
Including PA4, and the surrounding Glasgow and the Clyde area.
Can it be built on a terraced house?
Sometimes, but the upper floor is harder to get through planning on a terrace because of the effect on neighbours. A single-storey extension with a loft conversion is often an easier route.
Is the site visit in Renfrew free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a two-storey rear extension cost in Renfrew?
As a guide, £1,710–£2,560 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £51,500–£77,000 at that rate. Your written price follows the survey.
How long does a rear extension take to build in Renfrew?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.