House extensions in Wrexham
Looking to extend your home in Wrexham? Start here: extension types, guide prices for Wrexham, the planning rules that apply and how a project runs.
- Postcode districtsLL11, LL12, LL13
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation
Covering Wrexham and nearby
We cover Wrexham and the postcode districts LL11, LL12, LL13. Neighbouring towns we cover include Rhosllannerchrugog (4 miles), Buckley (9 miles), Hawarden (10 miles), Deeside (11 miles), Flint (15 miles). Welshpool, in Powys, is roughly 28 miles from Wrexham and also on our list.
Wrexham extension prices at a glance
Every figure below is a guide for Wrexham, adjusted for Wales build costs (×0.93) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Single-storey rear extensions | 20 m² | £38,000 – £48,500 |
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
| Side return extensions | 11 m² | £24,500 – £31,000 |
| Orangery extensions | 16 m² | £41,500 – £52,500 |
| Kitchen extensions | 20 m² | £39,000 – £49,500 |
What works best for Wrexham houses?
Welsh housing ranges from stone terraces in the valleys to render-and-slate houses and modern estates, and the Welsh planning rules differ from England's in several places.
The types we would usually look at first for a home in Wrexham are single-storey rear extensions, side return extensions and bungalow extensions, depending on the garden and how the house is laid out.
Planning and building control in Wrexham
In Wales a single-storey rear extension can usually project up to 4 m beyond the rear wall without a planning application, if it is no more than 4 m high, keeps eaves to 3 m and overall height to 4 m within 2 m of a boundary, and covers no more than half the land around the original house. Wales has no larger home extension prior approval scheme.
In Wales a rear extension of more than one storey can be permitted development only if the ground floor projects no more than 4 m, the upper floor no more than 3 m, it stays at least 10.5 m from the rear boundary and it is not in a conservation area, national park, National Landscape or World Heritage Site. Anything larger needs a planning application to the council.
In a conservation area, national park, National Landscape or World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. Wales has its own building regulations and approved documents; the council or a registered building control approver checks the plans, inspects the work and issues a completion certificate.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Choose an extension type
- Kitchen extensions · from £25,000
- Porch extensions · from £3,700
- Building regulations for extensions · from £800
- Flat roof extensions · from £19,500
- Conservatory replacement extensions · from £18,500
- Home office extensions · from £14,500
- Orangery extensions · from £27,500
- Bedroom extensions · from £24,000
- Planning permission for extensions · from £300
- Annexe extensions · from £51,000
- Extensions over a garage · from £22,000
- Side return extensions · from £16,500
- Wraparound extensions · from £33,000
- Single-storey rear extensions · from £19,500
- Glass box extensions · from £27,500
- Extension plans and drawings · from £1,100
- Side extensions · from £20,000
- Double-storey extensions · from £35,000
- Bungalow extensions · from £24,000
- Pitched roof extensions · from £20,500
- Timber frame extensions · from £19,500
- Utility and boot room extensions · from £13,000
Free site visit
We visit your Wrexham home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Wrexham
How much does an extension cost in Wrexham?
Using our Wales factor (×0.93), a standard-spec single-storey extension of 20 m² is a guide £38,000 to £48,500 including VAT, and a 32 m² two-storey extension £53,500 to £70,000. Your written price follows the survey.
How long does an extension take in Wrexham?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do you cover all of Wrexham?
Yes, including the surrounding parts of Clwyd. Site visits are free and there is no obligation.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Wrexham, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Wrexham
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.