Haverfordwest, West Wales
Glazed rear extension in Haverfordwest
Glazed rear extension in Haverfordwest: full-height glass, slim frames and big rooflights for the most open rear room. We measure the house, show you what the rules allow, price it in writing and build it.
Haverfordwest and its postcode districts SA61 are part of our West Wales coverage. Glass-led rear extensions in Haverfordwest are planned around which way the garden faces, because that decides the glass specification.
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 glazed rear extension cost in Haverfordwest?
In Haverfordwest, our guide for a glazed rear extension is £2,600–£4,460 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £31,000–£53,500 |
| 4 m wide × 6 m deep (24 m²) | £62,500–£107,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a glazed rear extension in Haverfordwest?
Here is how the rules in Wales apply to a glazed rear extension in Haverfordwest.
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.
Wales has its own Approved Document L, with targets for walls, roofs, floors and glazing similar to but not identical with England's. Heavily glazed designs are checked with a calculation.
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 glazed 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.
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.
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.
Glazed rear extensions near Haverfordwest
Close by, we work in Milford Haven, about 6.7 miles away, and Carmarthen, about 28.6 miles away.
- Glazed rear extension in Milford Haven
- Glazed rear extension in Carmarthen
- Glazed rear extension in Llanelli
- Glazed rear extension in Gorseinon
- Glazed rear extension in Ammanford
Other work in Haverfordwest:
FAQ
Glazed rear extension questions in Haverfordwest
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.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
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 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.
Is the site visit in Haverfordwest free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.