Haverfordwest, West Wales
Side return extension in Haverfordwest
Thinking about a side return extension in Haverfordwest? Infilling the narrow passage beside a Victorian or Edwardian back addition. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Haverfordwest (SA61) as part of our West Wales work. Side returns suit the Victorian and Edwardian terraces found across parts of West Wales, where the kitchen sits in a narrow back addition.
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 side return extension cost in Haverfordwest?
In Haverfordwest, our guide for a side return extension is £2,140–£3,530 per square metre including VAT for a standard specification. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £25,500–£42,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £37,500–£62,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a side return extension in Haverfordwest?
Whether your side return extension in Haverfordwest needs a planning application depends on its size, your house and any local restrictions.
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. 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 side return extension in Haverfordwest comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Side return extensions near Haverfordwest
We also build side return extensions in nearby Milford Haven (6.7 miles) and Carmarthen (28.6 miles).
- Side return extension in Milford Haven
- Side return extension in Carmarthen
- Side return extension in Llanelli
- Side return extension in Gorseinon
- Side return extension in Ammanford
Other work in Haverfordwest:
FAQ
Side return extension questions in Haverfordwest
What postcode areas do you cover around Haverfordwest?
Including SA61, and the surrounding West Wales area.
Can you match the brick or stone on my Haverfordwest house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Glass roof or solid roof with rooflights?
A glass roof gives the most light; a solid roof with long rooflights is warmer and quieter in rain. Both work.
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.
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.
Is the site visit in Haverfordwest free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.