Extension plans and drawings in Newton Mearns
We prepare extension plans and drawings for homes in Newton Mearns, as a stand-alone service or as the first stage of a design and build project.
- Guide price in Newton MearnsFrom £1,150 inc VAT
- PlanningWe find the right route for you
- Timescale2–6 weeks for drawings
- Postcode districtsG76, G77
Local to Newton Mearns
We cover Newton Mearns and the postcode districts G76, G77. We also work in nearby Barrhead (3 miles), Paisley (6 miles), Renfrew (7 miles), Johnstone (8 miles).
Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
What we take care of
- Structural calculations from an engineer (full pack)
- 3D views to check the look and the light (full pack)
- Two or three layout options to compare
- Building regulations drawings and specification
- Measured survey of the house and garden
The most expensive changes are the ones made after the steel is ordered. A good design stage settles layout, heights, glazing and services on paper, so the build price is firm.
Design and approval fees for Newton Mearns
Fees below are our Newton Mearns guide (×0.98, the Scotland factor), including VAT. Council and building control fees are extra.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Measured survey and planning drawings | £1,150 – £2,200 |
| Standard | Planning drawings plus building regulations drawings | £2,150 – £3,750 |
| Premium | Full pack with structural calculations and 3D visuals | £3,300 – £5,400 |
For a figure based on your own dimensions, use our guide-price tool.
Do I need planning permission in Newton Mearns?
In Scotland the questions are whether the extension falls within householder permitted development (Classes 1A to 1D) or needs planning permission from the council, and the building warrant, which is required before construction begins and is followed by a completion certificate.
The planning position for a specific Newton Mearns address depends on its history and any designations, which is why we check it at the first visit.
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.
Our process, step by step
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 Newton Mearns 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
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions answered
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Newton Mearns, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How long does this take for a Newton Mearns home?
2–6 weeks for drawings, depending on the council and the complexity of the project.
Do you cover all of Newton Mearns?
Yes. We cover Newton Mearns and the surrounding parts of Renfrewshire and Inverclyde. Site visits are free and there is no obligation.
Can I use your drawings with another builder?
Yes. Once paid for, the drawings are yours to use for your project.
How much do extension plans cost?
Our design packs range from about £1,150 to £5,400 including VAT, from planning drawings only to a full pack with building regulations drawings, structural calculations and 3D views. Council fees are separate.
Book a free site visit in Newton Mearns
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.