House extensions in Rochdale
Planning an extension in Rochdale? Compare extension types, see guide prices adjusted for Rochdale and book a free site visit.
- Postcode districtsOL2, OL10, OL11, OL12, OL15, OL16
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Where we work near Rochdale
Postcode districts we cover around Rochdale include OL2, OL10, OL11, OL12, OL15, OL16. Nearby, we also take on projects in Heywood (3 miles), Royton (4 miles), Middleton (5 miles), Chadderton (5 miles), Oldham (6 miles). Rawtenstall, in Lancashire, is roughly 8 miles from Rochdale and also on our list.
What works best for Rochdale houses?
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
For many houses here, kitchen extensions, single-storey rear extensions or double-storey extensions gives the most useful space for the budget.
Planning rules in Rochdale
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 single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Rochdale extension prices at a glance
We publish guide prices so you can budget before anyone visits. For Rochdale they are adjusted by ×0.95, the factor we use across North West England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
Every extension type in Rochdale
- Bedroom extensions · from £24,500
- Conservatory replacement extensions · from £19,000
- Side return extensions · from £17,000
- Pitched roof extensions · from £21,000
- Planning permission for extensions · from £300
- Home office extensions · from £15,000
- Wraparound extensions · from £34,000
- Building regulations for extensions · from £850
- Kitchen extensions · from £25,500
- Utility and boot room extensions · from £13,000
- Flat roof extensions · from £19,500
- Porch extensions · from £3,800
- Double-storey extensions · from £36,000
- Extensions over a garage · from £22,500
- Extension plans and drawings · from £1,100
- Timber frame extensions · from £19,500
- Bungalow extensions · from £24,500
- Glass box extensions · from £28,500
- Annexe extensions · from £52,000
- Side extensions · from £20,500
- Single-storey rear extensions · from £19,500
- Orangery extensions · from £28,500
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
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
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
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 Rochdale
How much does an extension cost in Rochdale?
Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Rochdale, and the guide-price tool gives a range for your own size and finish in about a minute.
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 handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do you cover all of Rochdale?
Yes, including the surrounding parts of Greater Manchester. Site visits are free and there is no obligation.
Book a free site visit in Rochdale
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.