Extending your home in Clwyd
Planning an extension in Clwyd? Compare extension types, see guide prices adjusted for Clwyd and book a free site visit.
- Towns listed10
- Price regionWales (×0.93)
- Planning rulesWales
- Postcode districts28
Towns we cover in Clwyd
Towns we cover here include Wrexham, Buckley, Deeside, Colwyn Bay.
Guide prices for Clwyd
We publish guide prices so you can budget before anyone visits. For Clwyd they are adjusted by ×0.93, the factor we use across Wales.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £38,000 – £48,500 |
| Wraparound extensions | 25 m² | £53,000 – £67,500 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
| Side return extensions | 11 m² | £24,500 – £31,000 |
| Orangery extensions | 16 m² | £41,500 – £52,500 |
Which extension suits a Clwyd home?
In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
The types we would usually look at first for a home in Clwyd are pitched roof extensions, bungalow extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Planning and building control in Clwyd
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 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.
Choose an extension type
- Double-storey extensions · from £35,000
- Wraparound extensions · from £33,000
- Bedroom extensions · from £24,000
- Extensions over a garage · from £22,000
- Annexe extensions · from £51,000
- Flat roof extensions · from £19,500
- Home office extensions · from £14,500
- Extension plans and drawings · from £1,100
- Porch extensions · from £3,700
- Glass box extensions · from £27,500
- Building regulations for extensions · from £800
- Single-storey rear extensions · from £19,500
- Utility and boot room extensions · from £13,000
- Side extensions · from £20,000
- Pitched roof extensions · from £20,500
- Side return extensions · from £16,500
- Kitchen extensions · from £25,000
- Conservatory replacement extensions · from £18,500
- Timber frame extensions · from £19,500
- Planning permission for extensions · from £300
- Orangery extensions · from £27,500
- Bungalow extensions · from £24,000
Questions about extensions in Clwyd
How much does an extension cost in Clwyd?
With our Wales factor (×0.93), a standard-spec 20 m² single-storey extension is a guide £38,000 to £48,500 including VAT. Prices for every type are linked on this page.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Clwyd, and the guide-price tool gives a range for your own size and finish in about a minute.
How long does an extension take in Clwyd?
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.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Book a free site visit in Clwyd
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.