Abergele, North Wales
Single-storey rear extension in Abergele
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We design, get the approvals for and build single-storey rear extensions in Abergele and the surrounding area, with one contract from the first survey to building control sign-off.
Abergele sits in North Wales, with postcode districts including LL22. On older terraces and post-war semis like those around Abergele, a single-storey rear extension is usually the simplest way to fix a small back kitchen without touching the bedrooms.
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 single-storey rear extension cost in Abergele?
A single-storey rear extension in Abergele is priced at £1,770–£2,880 per square metre including VAT as a guide, before kitchen fit-out and fees. 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) | £21,000–£34,500 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £42,500–£69,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a single-storey rear extension in Abergele?
The planning route for a single-storey rear extension in Abergele is set by Wales's householder rules and your council.
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.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development or a householder planning application.
What are homes in Abergele like to extend?
Older terraces near the centre and post-war semis further out are typical of Abergele. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start. A depth of 3 to 4 metres keeps many single-storey rear extensions in Abergele within permitted development, subject to the house's planning history.
How a single-storey rear extension in Abergele 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.
Paperwork handled
Planning or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Single-storey rear extensions near Abergele
From Abergele, the nearest places we also cover are Rhyl (4.4 miles) and Colwyn Bay (6.0 miles).
- Single-storey rear extension in Rhyl
- Single-storey rear extension in Colwyn Bay
- Single-storey rear extension in Prestatyn
- Single-storey rear extension in Llandudno
- Single-storey rear extension in Flint
Other work in Abergele:
FAQ
Single-storey rear extension questions in Abergele
How much does a single-storey rear extension cost in Abergele?
As a guide, £1,770–£2,880 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,000–£34,500 at that rate. Your written price follows the survey.
Is the site visit in Abergele free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Does it add value to the house?
Nationwide's October 2025 house price research found that a 10% increase in floor area is linked to about 5% higher value on average. It is a guide, not a promise; local agents can tell you what extended homes on your street sell for.
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.
How long does a rear extension take to build in Abergele?
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 planning permission for a rear extension in Abergele?
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.