Haverfordwest, West Wales
Kitchen-diner rear extension in Haverfordwest
For homes in Haverfordwest, a kitchen-diner rear extension is often the simplest way to gain space without moving. An open-plan kitchen, dining and family room that opens straight onto the garden. We take it from survey to completion certificate.
Haverfordwest is covered from our West Wales round, including SA61. For Haverfordwest kitchens we plan the extraction route and the island drainage before the slab is poured, so nothing has to be chased in later.
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 kitchen-diner rear extension cost in Haverfordwest?
For Haverfordwest we work from the Wales rate: £1,770–£2,880 per square metre of new floor, including VAT, standard specification. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,000–£34,500 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £42,500–£69,000 |
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 kitchen-diner rear extension in Haverfordwest?
The planning route for a kitchen-diner rear extension in Haverfordwest is set by Wales's householder rules and your council.
In Wales a single-storey rear extension can often be permitted development if it projects no more than 4 metres beyond the rear wall and is no more than 4 metres high. Wales has no prior approval route for deeper extensions, so anything bigger needs a householder planning application.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
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 kitchen-diner rear 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.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Kitchen-diner rear extensions near Haverfordwest
From Haverfordwest, the nearest places we also cover are Milford Haven (6.7 miles) and Carmarthen (28.6 miles).
- Kitchen-diner rear extension in Milford Haven
- Kitchen-diner rear extension in Carmarthen
- Kitchen-diner rear extension in Llanelli
- Kitchen-diner rear extension in Gorseinon
- Kitchen-diner rear extension in Ammanford
Other work in Haverfordwest:
FAQ
Kitchen-diner rear extension questions in Haverfordwest
What postcode areas do you cover around Haverfordwest?
Including SA61, and the surrounding West Wales area.
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.
Can I have underfloor heating?
Yes. Wet underfloor heating in the new screed is the usual choice, often with the old room's radiators kept or replaced.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
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 a party wall agreement?
In Wales, usually yes if the extension is on or near a shared boundary or close to a neighbour's foundations. We serve the notices.