Wraparound extensions across Johnstone
Our design and build teams take on wraparound extensions in Johnstone, from the first measured survey through planning and building control to the finished room.
- Guide price in JohnstoneFrom £35,000 inc VAT
- PlanningScottish householder rules; building warrant needed
- Build time14–20 weeks on site
- Postcode districtsPA5, PA10
Included in a typical project
- Full internal finish or kitchen-ready shell
- Foundations, drainage and any manhole relocation
- Roof with glazing along the side return
- Survey, design and 3D layout options
- Structural design for the corner and openings
- Householder planning application
The corner is where wraparounds succeed or fail. We usually use a single steel goalpost or a corner post hidden in a pier, and set the glazing so the new room reads as one space rather than two boxes.
Wraparound extension prices in Johnstone
For Johnstone 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 Johnstone: £1,960 to £3,630 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £35,000 – £42,500 | £40,500 – £51,500 | £51,000 – £65,500 |
| Medium L-shape 25 m² | £49,000 – £59,000 | £56,000 – £71,500 | £71,000 – £91,000 |
| Large L-shape 32 m² | £62,500 – £75,500 | £72,000 – £91,000 | £90,500 – £116,500 |
For a figure based on your own dimensions, use our guide-price tool.
Will the council need to approve it?
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. Separately, almost every extension needs a building warrant from the council before work starts.
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.
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.
Local to Johnstone
Site visits are available across Johnstone (PA5, PA10). Neighbouring towns we cover include Paisley (3 miles), Barrhead (5 miles), Erskine (6 miles), Renfrew (6 miles).
Scotland's housing includes sandstone villas, terraces and tenements in the cities and plenty of post-war and modern houses and bungalows elsewhere. A building warrant is needed before work starts.
From first visit to completion
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
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
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
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Your questions about a wraparound extension in Johnstone
How long does a wraparound extension take to build in Johnstone?
On site, typically 14 to 20 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.
Who do I contract with for a wraparound extension in Johnstone?
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 you cover all of Johnstone?
Yes. We cover Johnstone and the surrounding parts of Renfrewshire and Inverclyde. Site visits are free and there is no obligation.
How much does a wraparound extension cost?
Our guide range is about £1,960 to £3,630 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £56,000 to £71,500 in Johnstone before design and council fees.
Is a wraparound better than a side return alone?
It adds far more space, but costs more and needs planning permission more often. Our comparison guide sets the two side by side.
Book a free site visit in Johnstone
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.