Milford Haven, West Wales
Glazed rear extension in Milford Haven
We plan and build glazed and glass-box rear extensions for homeowners in Milford Haven. Full-height glass, slim frames and big rooflights for the most open rear room. Start with a free site visit, then a written price once the design is agreed.
Milford Haven and its postcode districts SA73 are part of our West Wales coverage. If your garden in Milford Haven faces south, expect us to talk about overhangs and solar-control glass before frame colours.
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 Milford Haven?
Guide prices for a glazed rear extension in Milford Haven start from our Wales rate of £2,600–£4,460 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 |
|---|---|
| 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 Milford Haven?
Whether your glazed rear extension in Milford Haven needs a planning application depends on its size, your house and any local restrictions.
Welsh permitted development allows a single-storey rear extension of up to 4 metres in depth and 4 metres in height, subject to boundary and garden-coverage limits. There is no larger-extension prior approval scheme in Wales.
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. 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 Milford Haven like to extend?
Older terraces near the centre and post-war semis further out are typical of Milford Haven. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a glazed rear extension in Milford Haven 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.
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.
Glazed rear extensions near Milford Haven
Neighbouring places we cover include Haverfordwest (6.7 miles) and Carmarthen (32.7 miles).
- Glazed rear extension in Haverfordwest
- Glazed rear extension in Carmarthen
- Glazed rear extension in Llanelli
- Glazed rear extension in Gorseinon
- Glazed rear extension in Ammanford
Other work in Milford Haven:
FAQ
Glazed rear extension questions in Milford Haven
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.
How much does a glazed rear extension cost in Milford Haven?
As a guide, £2,600–£4,460 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £31,000–£53,500 at that rate. Your written price follows the survey.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
What postcode areas do you cover around Milford Haven?
Including SA73, and the surrounding West Wales area.
Do I need planning permission for a rear extension in Milford Haven?
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.
Is the site visit in Milford Haven free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.