Pitched roof extensions in Radcliffe: design, approvals and build
Thinking about a pitched roof extension for your Radcliffe home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in RadcliffeFrom £21,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsM26, M45

How much does a pitched roof extension cost in Radcliffe?
Prices below are for Radcliffe, using the North West England factor of ×0.95. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Radcliffe: £1,760 to £3,320 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £21,000 – £25,000 | £24,500 – £31,500 | £31,000 – £40,000 |
| 4 m × 5 m 20 m² | £35,000 – £41,000 | £40,500 – £52,500 | £52,000 – £66,500 |
| 5 m × 6 m 30 m² | £52,500 – £61,500 | £61,000 – £78,500 | £78,000 – £100,000 |
Try the guide-price tool to see a range for your own size and finish.
Extensions in and around Radcliffe
We cover Radcliffe and the postcode districts M26, M45. We also work in nearby Whitefield (1 mile), Prestwich (3 miles), Bury (3 miles), Farnworth (3 miles).
Rawtenstall, in Lancashire, is roughly 10 miles from Radcliffe and also on our list. Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
What we take care of
- Vaulted ceilings or flat ceilings with storage above
- Roof design matched to the existing pitch and tiles
- Roof windows positioned for light and ventilation
- Lead or proprietary flashings to the main wall
- Insulation to current building regulations
Matching tiles is harder than it sounds. We source reclaimed or closest-match tiles where the originals are no longer made and agree samples with you before ordering.
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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).
What happens next
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
We visit your Radcliffe home, measure up, talk through what you want and check the planning position.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Common questions in Radcliffe
How long does a pitched roof extension take to build in Radcliffe?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Radcliffe, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do I need building regulations approval in Radcliffe?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Can I have a vaulted ceiling?
Yes. A vaulted ceiling with roof windows is one of the main reasons to choose a pitched roof. It needs insulation between and under the rafters to meet the building regulations.
Is a pitched roof better than a flat roof?
Neither is better in all cases. Pitched roofs blend with traditional houses and shed water quickly; flat roofs give more headroom and suit modern designs and lanterns.
Book a free site visit in Radcliffe
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.