Porch extensions in St Andrews: design, approvals and build
We design and build porch extensions for houses in St Andrews, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in St AndrewsFrom £3,900 inc VAT
- PlanningSmall porches may be permitted development; building warrant rules apply
- Build time2–4 weeks on site
- Postcode districtsKY16

Guide prices for St Andrews
These guide figures apply our Scotland adjustment (×0.98) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Small brick or glazed porch, up to 3 m² | £3,900 – £6,400 |
| Standard | Brick porch with tiled roof and composite door | £5,850 – £9,350 |
| Premium | Larger porch with WC or oak frame and premium glazing | £8,800 – £14,700 |
Want a range for your exact size? The guide-price tool takes about a minute.
Planning rules that apply in St Andrews
In Scotland a small porch can be permitted development (Class 1C) within limits on floor area, height and distance from a road; larger porches need planning permission, and building standards still apply, so we check whether a building warrant is needed.
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.
Scotland has no Party Wall Act. Where work affects a shared wall or a neighbour's land, we agree access, protection and making good with your neighbour in writing before work starts.
Applications are decided by your council as planning authority.
What is included
- Brick, render or oak frame walls
- Foundations and drainage for rainwater
- Design to suit the house style
- Front door, glazing and electrics
- Tiled, slate or flat roof
Covering St Andrews
Site visits are available across St Andrews (KY16). The same team covers Cupar (10 miles), Glenrothes (17 miles), Kirkcaldy (21 miles), Dunfermline (31 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.
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
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Common questions in St Andrews
How long does a porch extension take to build in St Andrews?
On site, typically 2 to 4 weeks once approvals are in place. Before that, allow 2–8 weeks design and approvals.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for St Andrews, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Will my neighbours in St Andrews be involved?
If a planning application is needed, the council notifies neighbours. Where work is close to a shared boundary, we agree access and protection with them in writing.
How much does a porch cost?
Our guide range is about £3,900 to £14,700 including VAT, depending on size, materials and whether it includes a WC.
Book a free site visit in St Andrews
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.