Abergavenny, Newport and Monmouthshire
Glazed rear extension in Abergavenny
Full-height glass, slim frames and big rooflights for the most open rear room. If you live in Abergavenny and want to know what a glazed rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Abergavenny and its postcode districts NP7 are part of our Newport and Monmouthshire coverage. If your garden in Abergavenny 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 Abergavenny?
In Abergavenny, 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 Abergavenny?
Here is how the rules in Wales apply to a glazed rear extension in Abergavenny.
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 Abergavenny like to extend?
Older terraces near the centre and post-war semis further out are typical of Abergavenny. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a glazed rear extension in Abergavenny comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Glazed rear extensions near Abergavenny
From Abergavenny, the nearest places we also cover are Brynmawr (7.2 miles) and Abertillery (8.0 miles).
- Glazed rear extension in Brynmawr
- Glazed rear extension in Abertillery
- Glazed rear extension in Pontypool
- Glazed rear extension in Ebbw Vale
- Glazed rear extension in Tredegar
Other work in Abergavenny:
FAQ
Glazed rear extension questions in Abergavenny
Can you match the brick or stone on my Abergavenny house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
Can I have a level threshold?
Yes, with a drainage channel outside the doors and the slab set to the patio level.
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.
How long does a rear extension take to build in Abergavenny?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.