Johnstone, Glasgow and the Clyde
Rear extension planning drawings in Johnstone
Measured survey, design options, planning drawings and the application, handled for you. If you live in Johnstone and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Johnstone sits in Glasgow and the Clyde, with postcode districts including PA5. For Johnstone homes we start with a measured survey, then draw options before anything is submitted.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Johnstone?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. Planning and building warrant fees in Scotland are set nationally and by value of work; we confirm both before submitting. 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 rear extension in Johnstone?
The planning route for a rear extension in Johnstone is set by Scotland's householder rules and your council.
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.
Scottish councils aim to decide householder applications within two months; the building warrant runs alongside.
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 Johnstone like to extend?
Post-war semis and terraces are common around Johnstone, and many have room for a single-storey rear extension within Class 1A limits.
How a rear extension in Johnstone 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.
Paperwork handled
Planning or permitted development, the building warrant, structural design and neighbour agreements are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Rear extension planning drawings near Johnstone
We also build rear extensions in nearby Paisley (3.2 miles) and Barrhead (5.2 miles).
- Rear extension planning drawings in Paisley
- Rear extension planning drawings in Barrhead
- Rear extension planning drawings in Erskine
- Rear extension planning drawings in Renfrew
- Rear extension planning drawings in Clydebank
Other work in Johnstone:
FAQ
Rear extension planning drawings questions in Johnstone
Is the site visit in Johnstone free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Johnstone?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Are the drawings mine?
You can use them to get other quotes, subject to the terms.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.
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.