Greenock, Glasgow and the Clyde
Two-storey rear extension in Greenock
Thinking about a two-storey rear extension in Greenock? 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 Greenock (PA14, PA15, PA16 and PA19) 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 Greenock?
Guide prices for a two-storey rear extension in Greenock start from our Scotland rate of £1,710–£2,560 per square metre, including VAT. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a two-storey rear extension in Greenock?
Planning for a two-storey rear extension in Greenock follows the Scottish householder rules.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Greenock like to extend?
Post-war semis and terraces are common around Greenock, and many have room for a single-storey rear extension within Class 1A limits.
How a two-storey rear extension in Greenock comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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 Greenock
Neighbouring places we cover include Gourock (2.4 miles) and Port Glasgow (2.9 miles).
- Two-storey rear extension in Gourock
- Two-storey rear extension in Port Glasgow
- Two-storey rear extension in Helensburgh
- Two-storey rear extension in Vale of Leven
- Two-storey rear extension in Dumbarton
Other work in Greenock:
FAQ
Two-storey rear extension questions in Greenock
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.
Is the site visit in Greenock free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I add an en-suite upstairs?
Yes. We plan the soil pipe route early so the bathroom sits where drainage works without boxing through the room below.
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.
What postcode areas do you cover around Greenock?
Including PA14, PA15, PA16 and PA19, and the surrounding Glasgow and the Clyde area.
Do I need a party wall agreement?
Scotland has no Party Wall Act; we agree access and protection with your neighbour in writing instead.