Ross-on-Wye house extensions
We design and build house extensions for homes in Ross-on-Wye and the surrounding Herefordshire area, with guide prices adjusted for the region.
- Postcode districtsHR9
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation
Ross-on-Wye and surrounding towns
Across HR9, we can visit, measure and advise. Neighbouring towns we cover include Ledbury (11 miles), Hereford (12 miles), Leominster (24 miles). Just over the Gloucestershire border, Gloucester is about 15 miles away.
Choosing the right extension in Ross-on-Wye
Across the West Midlands, brick-built semis with long gardens are common, so single-storey and two-storey rear extensions are popular choices.
For many houses here, kitchen extensions, single-storey rear extensions or extensions over a garage gives the most useful space for the budget.
Popular extension prices in Ross-on-Wye
Prices on this page use our West Midlands factor of ×0.97, 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) |
|---|---|---|
| Wraparound extensions | 25 m² | £55,500 – £70,500 |
| Double-storey extensions | 32 m² | £55,500 – £73,000 |
| Extensions over a garage | 12 m² | £24,000 – £31,500 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Conservatory replacement extensions | 14 m² | £29,000 – £37,500 |
| Single-storey rear extensions | 20 m² | £39,500 – £50,500 |
Planning and building control in Ross-on-Wye
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
In a conservation area, national park, National Landscape, the Broads or a 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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
All extension types we build in Ross-on-Wye
- Annexe extensions · from £53,000
- Timber frame extensions · from £20,000
- Bungalow extensions · from £25,000
- Wraparound extensions · from £34,500
- Glass box extensions · from £29,000
- Extensions over a garage · from £23,000
- Extension plans and drawings · from £1,150
- Planning permission for extensions · from £300
- Kitchen extensions · from £26,000
- Single-storey rear extensions · from £20,000
- Building regulations for extensions · from £850
- Orangery extensions · from £29,000
- Home office extensions · from £15,500
- Bedroom extensions · from £25,000
- Pitched roof extensions · from £21,500
- Porch extensions · from £3,850
- Side return extensions · from £17,000
- Double-storey extensions · from £36,500
- Conservatory replacement extensions · from £19,000
- Utility and boot room extensions · from £13,500
- Side extensions · from £21,000
- Flat roof extensions · from £20,000
Free site visit
We visit your Ross-on-Wye home, measure up, talk through what you want and check the planning position.
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
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Ross-on-Wye
How much does an extension cost in Ross-on-Wye?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. 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.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Do you cover all of Ross-on-Wye?
Yes, including the surrounding parts of Herefordshire. 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 Ross-on-Wye, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Ross-on-Wye
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.