Dumbarton, Glasgow and the Clyde
Rear extension planning drawings in Dumbarton
We plan and build rear extensions for homeowners in Dumbarton. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.
We cover Dumbarton (G82) as part of our Glasgow and the Clyde work. For Dumbarton 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 Dumbarton?
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. These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a rear extension in Dumbarton?
Here is how the rules in Scotland apply to a rear extension in Dumbarton.
In Scotland an extension of more than one storey is only permitted development (Class 1B) if no part is within 10 metres of any boundary and it is no higher than the existing house, so almost every two-storey rear extension needs planning permission and a building warrant.
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. 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 Dumbarton like to extend?
Post-war semis and terraces are common around Dumbarton, and many have room for a single-storey rear extension within Class 1A limits.
How a rear extension in Dumbarton 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.
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.
Rear extension planning drawings near Dumbarton
Neighbouring places we cover include Vale of Leven (1.9 miles) and Port Glasgow (4.6 miles).
- Rear extension planning drawings in Vale of Leven
- Rear extension planning drawings in Port Glasgow
- Rear extension planning drawings in Erskine
- Rear extension planning drawings in Clydebank
- Rear extension planning drawings in Greenock
Other work in Dumbarton:
FAQ
Rear extension planning drawings questions in Dumbarton
What postcode areas do you cover around Dumbarton?
Including G82, and the surrounding Glasgow and the Clyde area.
Can you match the brick or stone on my Dumbarton house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
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.
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.
How long does a rear extension take to build in Dumbarton?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.