Conservatory replacement extensions in Briton Ferry: design, approvals and build
Thinking about a conservatory replacement for your Briton Ferry home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in Briton FerryFrom £18,500 inc VAT
- PlanningWelsh permitted development rules (rear up to 4 m)
- Build time8–14 weeks on site
- Postcode districtsSA12

Extensions in and around Briton Ferry
We cover Briton Ferry and the postcode districts SA12. Neighbouring towns we cover include Neath (2 miles), Clydach (5 miles), Swansea (5 miles), Gorseinon (10 miles).
For homes towards Mid Glamorgan, Maesteg is around 7 miles away. In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
Will the council need to approve it?
In Wales a single-storey rear extension can usually project up to 4 m beyond the rear wall without a planning application, if it is no more than 4 m high, keeps eaves to 3 m and overall height to 4 m within 2 m of a boundary, and covers no more than half the land around the original house. Wales has no larger home extension prior approval scheme.
The planning position for a specific Briton Ferry address depends on its history and any designations, which is why we check it at the first visit.
The Party Wall etc. Act 1996 applies in Wales as in England: notice must be served before work to a shared wall, building on the boundary, or excavating close to a neighbour's foundations.
Building over or within 3 m of a public sewer needs the water company's consent before the foundations go in.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Conservatory replacement prices in Briton Ferry
Labour and material costs vary across the UK, so for Briton Ferry we use our Wales factor (×0.93). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Briton Ferry: £1,720 to £3,260 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 3.3 m 10 m² | £18,500 – £22,500 | £19,500 – £26,000 | £25,500 – £33,000 |
| 3.5 m × 4 m 14 m² | £24,000 – £29,000 | £27,500 – £36,000 | £35,500 – £46,000 |
| 4 m × 5 m 20 m² | £34,000 – £41,000 | £39,500 – £51,500 | £51,000 – £65,500 |
Includes removal of the old conservatory. Reusing existing foundations is only possible after investigation.
Try the guide-price tool to see a range for your own size and finish.
When a conservatory replacement makes sense
- Homes where the conservatory sits unused
- Older uPVC conservatories near the end of their life
- Conservatories that are too hot or too cold
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
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
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.
Conservatory replacement questions answered
Will my neighbours in Briton Ferry be involved?
If a planning application is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
How long does a conservatory replacement take to build in Briton Ferry?
On site, typically 8 to 14 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.
Who do I contract with for a conservatory replacement in Briton Ferry?
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.
Does replacing a conservatory need planning permission?
A solid replacement is treated as a new extension, so it must meet the permitted development limits or get planning permission, and it always needs building regulations approval.
Can I keep the existing base?
Sometimes, but conservatory bases are often too shallow for solid walls. Trial holes tell us before we confirm the price.
Book a free site visit in Briton Ferry
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.