Conservatory replacement extensions in Frome: design, approvals and build
Frome homeowners can use us for the whole conservatory replacement project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide price in FromeFrom £20,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time8–14 weeks on site
- Postcode districtsBA11
Will the council need to approve it?
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 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.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
What we take care of
- Removal and disposal of the old conservatory
- Glazing and doors to suit the new room
- New or upgraded foundations
- Opening widened into the house if wanted
- Trial holes to check the existing foundations
- Insulated walls and roof to current regulations
A replacement is a chance to rethink the shape. Many conservatories are oddly proportioned; for a similar cost the new room can often be squarer, wider or better connected to the kitchen.
Conservatory replacement prices in Frome
Prices below are for Frome, using the South West England factor of ×1.02. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Frome: £1,890 to £3,570 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 3.3 m 10 m² | £20,000 – £24,500 | £21,500 – £28,500 | £28,000 – £36,000 |
| 3.5 m × 4 m 14 m² | £26,000 – £31,500 | £30,500 – £39,500 | £39,000 – £50,000 |
| 4 m × 5 m 20 m² | £37,500 – £45,000 | £43,500 – £56,500 | £56,000 – £71,500 |
Includes removal of the old conservatory. Reusing existing foundations is only possible after investigation.
Try the guide-price tool to see a range for your own size and finish.
Covering Frome
Site visits are available across Frome (BA11). Nearby, we also take on projects in Bath (10 miles), Keynsham (15 miles), Nailsea (24 miles), Yeovil (24 miles).
Just over the Wiltshire border, Warminster is about 7 miles away. In the South West, local stone, render and brick vary from town to town, so matching materials is a big part of designing an extension that looks right.
From first visit to completion
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Common questions in Frome
Do you cover all of Frome?
Yes. We cover Frome and the surrounding parts of Somerset. Site visits are free and there is no obligation.
How long does a conservatory replacement take to build in Frome?
On site, typically 8 to 14 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Frome, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Can I keep the existing base?
Sometimes, but conservatory bases are often too shallow for solid walls. Trial holes tell us before we confirm the price.
Is it worth replacing a conservatory with an extension?
If the conservatory is unusable for much of the year, usually yes. A solid extension gives a heated room that counts as proper living space. Our guide range is about £1,890 to £3,570 per m² including VAT, including removal.
Book a free site visit in Frome
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.