Ammanford, West Wales
Glazed rear extension in Ammanford
Full-height glass, slim frames and big rooflights for the most open rear room. We design, get the approvals for and build glazed and glass-box rear extensions in Ammanford and the surrounding area, with one contract from the first survey to building control sign-off.
Ammanford is covered from our West Wales round, including SA18. If your garden in Ammanford 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 Ammanford?
In Ammanford, 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a glazed rear extension in Ammanford?
Whether your glazed rear extension in Ammanford 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 Ammanford like to extend?
Older terraces near the centre and post-war semis further out are typical of Ammanford. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a glazed rear extension in Ammanford 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.
Approvals
Permitted development check or householder planning application, then Building Regulations drawings to the Welsh Approved Documents and structural calculations, plus party wall notices where they apply.
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 Ammanford
We also build glazed and glass-box rear extensions in nearby Clydach (8.5 miles) and Gorseinon (8.8 miles).
- Glazed rear extension in Clydach
- Glazed rear extension in Gorseinon
- Glazed rear extension in Ystalyfera
- Glazed rear extension in Llanelli
- Glazed rear extension in Neath
Other work in Ammanford:
FAQ
Glazed rear extension questions in Ammanford
What postcode areas do you cover around Ammanford?
Including SA18, and the surrounding West Wales area.
Do you handle building control in Ammanford?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
Is a glass box a conservatory?
No. It is built to Building Regulations as part of the house, with insulated floor and roof, so it is usable all year.
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.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Is the site visit in Ammanford free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.