House extensions in Pontypool
From a small utility to a two-storey addition, we take on house extensions throughout Pontypool, starting with a free visit and a planning check.
- Postcode districtsNP4
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation

Planning rules in Pontypool
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 single-storey side return can fall within permitted development if it stays within the 4 m height limit and the width rules for side extensions. Conservation areas and listed buildings need consent, and the Party Wall Act applies to work on or near a shared wall.
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).
Pontypool and surrounding towns
We cover Pontypool and the postcode districts NP4. Neighbouring towns we cover include Cwmbran (3 miles), Newport, Gwent (8 miles), Ebbw Vale (9 miles), Abergavenny (9 miles), Monmouth (15 miles). Risca, in Mid Glamorgan, is roughly 7 miles from Pontypool and also on our list.
Guide prices for Pontypool
Prices on this page use our Wales factor of ×0.93, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| 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 |
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
Which extension suits a Pontypool home?
In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
Start by comparing single-storey rear extensions, side return extensions and bungalow extensions: between them they cover most of the layouts we see requested for houses like these.
Extension types and starting prices
- Timber frame extensions · from £19,500
- Glass box extensions · from £27,500
- Wraparound extensions · from £33,000
- Double-storey extensions · from £35,000
- Building regulations for extensions · from £800
- Side extensions · from £20,000
- Single-storey rear extensions · from £19,500
- Orangery extensions · from £27,500
- Bedroom extensions · from £24,000
- Pitched roof extensions · from £20,500
- Extension plans and drawings · from £1,100
- Extensions over a garage · from £22,000
- Porch extensions · from £3,700
- Kitchen extensions · from £25,000
- Home office extensions · from £14,500
- Conservatory replacement extensions · from £18,500
- Flat roof extensions · from £19,500
- Planning permission for extensions · from £300
- Annexe extensions · from £51,000
- Bungalow extensions · from £24,000
- Utility and boot room extensions · from £13,000
- Side return extensions · from £16,500
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Pontypool
How much does an extension cost in Pontypool?
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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
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.
Do I need planning permission for an extension in Pontypool?
Not always. It depends on the size, position and your property's history. In Wales many single-storey rear extensions up to 4 m are permitted development.
How long does an extension take in Pontypool?
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.
Book a free site visit in Pontypool
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.