Bedroom extensions for homes in Paisley
From the first sketch to final sign-off, we plan and build bedroom extensions in Paisley and the surrounding Renfrewshire and Inverclyde area.
- Guide price in PaisleyFrom £25,000 inc VAT
- PlanningUsually planning permission; building warrant needed
- Build time14–22 weeks on site
- Postcode districtsG78, PA1, PA2, PA3, PA4

Planning rules that apply in Paisley
In Scotland, householder permitted development rules (Class 1A for single-storey ground-floor extensions and Class 1B for extensions of more than one storey) allow some smaller extensions without a planning application, within limits on depth, height and distance from the boundary. Conservation areas and listed buildings are more restricted.
Homes in conservation areas, national scenic areas and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.
In Scotland a building warrant from the council is needed before work starts on almost any extension, and a completion certificate is issued when the work is accepted. Building standards are set in the Scottish technical handbooks.
Building close to a public sewer needs the agreement of Scottish Water, which we check during design.
Applications are decided by your council as planning authority.
What we take care of
- Heating extended to the new rooms
- Planning drawings and application
- Layout options: two-storey, over-garage or ground floor
- Structure, roof, insulation and finish
- Fire safety: escape windows and smoke alarms to building regulations
- En-suite drainage and ventilation design
What should I budget for a bedroom extension in Paisley?
For Paisley we adjust our national guide rates by ×0.98, the factor we use for Scotland. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Paisley: £1,570 to £3,140 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| One bedroom 12 m² | £25,000 – £31,500 | £25,000 – £33,000 | £28,000 – £38,000 |
| Bedroom and en-suite 18 m² | £28,000 – £34,500 | £33,500 – £43,500 | £42,000 – £56,500 |
| Two rooms 30 m² | £47,000 – £57,500 | £55,500 – £72,500 | £70,500 – £94,500 |
For a figure based on your own dimensions, use our guide-price tool.
Local to Paisley
Site visits are available across Paisley (G78, PA1, PA2, PA3, PA4, PA5). The same team covers Barrhead (3 miles), Renfrew (3 miles), Johnstone (3 miles), Erskine (5 miles), all within easy reach.
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your Paisley home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Your questions about a bedroom extension in Paisley
Who do I contract with for a bedroom extension in Paisley?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do I need building regulations approval in Paisley?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
Do you cover all of Paisley?
Yes. We cover Paisley and the surrounding parts of Renfrewshire and Inverclyde. Site visits are free and there is no obligation.
Will a new bedroom need planning permission?
Upstairs additions usually do. Ground-floor rooms may fall within permitted development, depending on size and position.
How much does a bedroom extension cost?
Our guide range is about £1,570 to £3,140 per m² including VAT. A bedroom with an en-suite of about 18 m² is typically £33,500 to £43,500 at standard spec, depending on whether it is part of a larger two-storey build.
Book a free site visit in Paisley
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.