Bungalow extensions for homes in Haverfordwest
Thinking about a bungalow extension for your Haverfordwest 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 HaverfordwestFrom £24,000 inc VAT
- PlanningWelsh permitted development rules (rear up to 4 m)
- Build time10–18 weeks on site
- Postcode districtsSA61

Guide prices for Haverfordwest
Prices below are for Haverfordwest, using the Wales factor of ×0.93. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Haverfordwest: £1,630 to £3,160 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £24,000 – £29,500 | £28,500 – £37,000 | £36,000 – £47,500 |
| 4 m × 6 m 24 m² | £39,000 – £47,000 | £45,500 – £59,500 | £58,000 – £76,000 |
| L-shape 35 m² | £56,500 – £68,500 | £66,500 – £86,500 | £84,500 – £111,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
Local to Haverfordwest
Our survey diary covers Haverfordwest, including SA61. Nearby, we also take on projects in Pembroke Dock (8 miles), Carmarthen (29 miles), Llanelli (36 miles), Ammanford (42 miles).
For homes towards West Glamorgan, Gorseinon is around 41 miles away. In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
Planning rules that apply in Haverfordwest
In Wales single-storey bungalow extensions follow the normal limits (up to 4 m at the rear); adding a storey needs planning permission.
In a conservation area, national park, National Landscape or World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
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 regulations approval is separate from planning. Wales has its own building regulations and approved documents; the council or a registered building control approver checks the plans, inspects the work and issues a completion certificate.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Included in a typical project
- Structural survey before any upward extension
- Planning application where needed
- Single-storey extension options assessed first
- Roof designs that tie into the existing hipped or gable roof
Bungalow roofs are often hipped, which makes tying in an extension roof a careful job. We draw the roof junction early because it drives both the look and the cost.
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
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
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
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Your questions about a bungalow extension in Haverfordwest
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Haverfordwest, 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 a bungalow extension take to build in Haverfordwest?
On site, typically 10 to 18 weeks once approvals are in place. Before that, allow 6–14 weeks design and approvals.
Will my neighbours in Haverfordwest 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.
Is it better to extend sideways or upwards?
Sideways and rearwards is usually simpler, cheaper and keeps single-level living. Upwards saves garden but means stairs, more structure and planning permission.
How much does a bungalow extension cost?
Our guide range for single-storey work is about £1,630 to £3,160 per m² including VAT. Going upwards is priced after a structural survey.
Book a free site visit in Haverfordwest
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.