Haverfordwest, West Wales
Wraparound extension in Haverfordwest
Wraparound extension in Haverfordwest: an L-shaped extension that fills the side return and runs across the back. We measure the house, show you what the rules allow, price it in writing and build it.
Haverfordwest is covered from our West Wales round, including SA61. Wraparound projects around Haverfordwest often involve two neighbours, so we start the party wall conversations early.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a wraparound extension cost in Haverfordwest?
Guide prices for a wraparound extension in Haverfordwest start from our Wales rate of £2,050–£3,350 per square metre, including VAT. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £45,000–£73,500 |
| L-shaped, about 30 m² of new floor | £61,500–£100,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a wraparound extension in Haverfordwest?
Planning for a wraparound extension in Haverfordwest follows the Welsh householder rules.
In Wales a single-storey side extension can be permitted development if it is no more than 4 metres high and the house ends up no more than 50% wider than the original. Many side return infills on terraced streets, and most wraparounds, go through a householder application.
The Party Wall etc. Act 1996 also applies in Wales: two months' notice for work to a shared wall and one month for foundations dug close to a neighbour's building.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Haverfordwest like to extend?
Older terraces near the centre and post-war semis further out are typical of Haverfordwest. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a wraparound extension in Haverfordwest comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Wraparound extensions near Haverfordwest
Close by, we work in Milford Haven, about 6.7 miles away, and Carmarthen, about 28.6 miles away.
- Wraparound extension in Milford Haven
- Wraparound extension in Carmarthen
- Wraparound extension in Llanelli
- Wraparound extension in Gorseinon
- Wraparound extension in Ammanford
Other work in Haverfordwest:
FAQ
Wraparound extension questions in Haverfordwest
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Is it worth it over a side return alone?
If you want a dining table and a sofa as well as the kitchen, usually yes.
How long does a rear extension take to build in Haverfordwest?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need planning permission for a rear extension in Haverfordwest?
Often not for a single-storey rear extension of up to 4 metres under Welsh permitted development. Wales has no prior approval route for deeper extensions.
Do you handle building control in Haverfordwest?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.