Timber frame extensions in Llanelli
Llanelli homeowners can use us for the whole timber frame extension project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide price in LlanelliFrom £19,500 inc VAT
- PlanningWelsh permitted development rules (rear up to 4 m)
- Build time8–14 weeks on site
- Postcode districtsSA15
Local to Llanelli
Our survey diary covers Llanelli, including SA15. We also work in nearby Ammanford (11 miles), Carmarthen (13 miles), Pembroke Dock (33 miles), Haverfordwest (36 miles).
For homes towards West Glamorgan, Gorseinon is around 5 miles away. Welsh housing ranges from stone terraces in the valleys to render-and-slate houses and modern estates, and the Welsh planning rules differ from England's in several places.
Guide prices for Llanelli
Prices below are for Llanelli, using the Wales factor of ×0.93. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Llanelli: £1,630 to £3,160 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £19,500 – £23,500 | £22,500 – £30,000 | £29,000 – £38,000 |
| 4 m × 5 m 20 m² | £32,500 – £39,500 | £38,000 – £49,500 | £48,000 – £63,500 |
| 5 m × 6 m 30 m² | £48,500 – £59,000 | £57,000 – £74,000 | £72,500 – £95,000 |
For a figure based on your own dimensions, use our guide-price tool.
Do I need planning permission in Llanelli?
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.
Homes in conservation areas, national parks, National Landscapes (AONBs) and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
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.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Is a timber frame extension right for your house?
- Homeowners who want strong energy performance
- Sites where weight or speed matters
- Contemporary designs with timber or board cladding
Moisture is the enemy of any timber building. We design ventilated cladding cavities, breather membranes and a proper damp-proof course height, and keep the frame dry during construction.
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
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
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Common questions in Llanelli
Who do I contract with for a timber frame extension in Llanelli?
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.
Will my neighbours in Llanelli 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.
Do I need building regulations approval in Llanelli?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Does a timber frame extension need planning permission?
The same planning rules apply as for any extension. If the cladding looks different from the house, permitted development’s matching-materials condition may mean an application is needed.
Is timber frame cheaper than brick?
It is similar overall. The frame can save time on site, but the cladding choice has a big effect on cost. Our guide range is about £1,630 to £3,160 per m² including VAT.
Book a free site visit in Llanelli
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.