Wirral
House Extensions in Rock Ferry
Local builders. Fixed-price quotes. 20-year structural guarantee. CNR Construction covers Rock Ferry and the surrounding area.
House Extensions in Rock Ferry
Rock Ferry is a historic area of south Birkenhead on the Mersey waterfront with strong Victorian housing stock and an active regeneration story. Property values here offer good upside for extension investment, and CNR Construction has experience working across the local housing types.
What to expect building in Rock Ferry
Rock Park is a private Victorian residential estate adjacent to Rock Ferry and a designated conservation area where extensions must respect the historic character of the estate's buildings and streetscene. Outside Rock Park, the main residential streets follow standard Wirral Council PD rules. The density of terraced housing throughout Rock Ferry means party wall considerations are relevant on most projects. Adjoining owners need to be notified before work starts and, in some cases, a formal party wall agreement is required before excavation or structural work commences. We advise on party wall obligations as part of every project plan in this area.
Typical housing stock in Rock Ferry
Victorian mid-terraced and semi-detached properties dominate, particularly on Bedford Road, Rock Lane East and West, Devonshire Place, and the streets running towards the Mersey. The terracing density in parts of Rock Ferry is among the highest in south Wirral. Some larger semi-detached properties sit on the main roads.
CNR Construction are Wirral-based builders with over 15 years of experience across Merseyside. We cover Rock Ferry as part of our wider service area. View our full house extensions service for details on everything we offer.
Extension Types We Build
- Single-storey rear extensions
- Double-storey rear extensions
- Side return extensions
- Wraparound extensions
- Open-plan kitchen-diner layouts
- Bifold and sliding door installations
- Vaulted ceilings and skylights
- Underfloor heating
What's Included
Every house extension we build in Rock Ferry is fully managed from groundworks to final plastering.
Groundworks and Foundations
Excavation, drainage, and concrete footings built right from the start.
Structural Brickwork
Matching brickwork tied seamlessly into your existing property.
Roofing
Pitched, flat, or lantern roofs, weathertight and fully guaranteed.
Windows and Doors
Supply and fit of bifold doors, skylights, and Velux rooflights.
Insulation and First Fix
Fully insulated walls, floor, and roof to current building regulations.
Plastering
Skimmed smooth walls ready for your decorator.
Planning Permission in Rock Ferry
Beyond those specific considerations, many single-storey rear extensions in Rock Ferry fall within Permitted Development rights and do not require a planning application to Wirral Council. Standard PD limits are 3 metres beyond the original rear wall for semi-detached and terraced houses, and 4 metres for detached houses. Larger single-storey extensions of up to 6 metres or 8 metres may be possible under the Prior Approval scheme.
We confirm the planning position for every project before work begins. For a full breakdown of the rules, see our planning permission guide.
Our Guarantee
Every house extension we complete in Rock Ferry is backed by our 20-year structural guarantee, provided in writing at handover. It covers structural integrity and workmanship from the date of practical completion and is transferable if you sell the property.
We also provide fixed-price written quotes before any work starts. What we quote is what you pay.
20 Years
Structural guarantee
15+
Years experience
50+
Projects completed
Fixed
Price quotes
Questions About House Extensions in Rock Ferry
Do I need planning permission for a house extension in Rock Ferry?
Rock Park Conservation Area covers the private Victorian estate. Outside Rock Park, standard Wirral Council permitted development rules apply. Party wall notifications are required on most terraced properties before work begins, which we include in every project plan. In general, single-storey rear extensions within the standard Permitted Development limits do not require a planning application to Wirral Council. The limit is 3 metres for semi-detached and terraced houses and 4 metres for detached houses. Larger extensions under the Prior Approval scheme may also be available depending on your specific property and location. We confirm the exact position before any work begins.
How much does a house extension cost in Rock Ferry?
Costs in Rock Ferry vary depending on the size, type, and specification of the project. A single-storey rear extension typically starts from around £1,500 to £2,000 per square metre for a well-built, fully insulated extension. CNR Construction provides a detailed fixed-price written quote before work starts, so you know the full cost upfront with no surprises.
How long does a house extension take to build in Rock Ferry?
A single-storey rear extension typically takes 8 to 14 weeks on site once work begins. A double-storey extension may take 12 to 20 weeks depending on scope. We agree a programme before starting and keep you updated at every stage.
Do you cover Rock Ferry?
Yes. CNR Construction are based in Wirral and cover Rock Ferry and the surrounding areas of Wirral. Call us on 07784 255380 or contact us online to arrange a free site consultation.
Also Covering Nearby Areas
We work across Rock Ferry and the surrounding areas of Wirral.
Get a Free Quote for Your Rock Ferry Extension
We visit your property, discuss your plans, and provide a detailed written quote. No obligation, no pressure.