House Extensions in Wirral

Most single-storey rear extensions fall under Permitted Development and don't need a formal planning application. However, there are size limits — typically 4m from the rear wall on a detached or 3m on a semi or terrace — and restrictions apply in conservation areas and on listed buildings. We check your specific property before any work begins.

A standard single-storey rear extension typically runs 12 to 16 weeks on site. Double-storey or larger extensions usually take 14 to 20 weeks. We agree a programme with you in writing before work starts and update you at every stage.

Rear extensions in Wirral typically range from £50,000 to £75,000 for a single-storey build. Side extensions run £55,000–£80,000, and wrap-around extensions from £80,000 upwards. These figures reflect real completed projects — if your budget is below £40,000, a full extension may not be viable without significant compromises. We give fixed-price written quotes after a site visit — not vague estimates.

Yes. Building regulations are required on all extensions and are entirely separate from planning permission. We submit all notices, arrange stage inspections with building control, and ensure you receive your completion certificate at the end of the project.

A single-storey extension adds ground-floor space — typically a larger kitchen-diner, extra living area, or utility room. A double-storey adds a floor above as well, giving you an additional bedroom or bathroom at the same time. Double-storey extensions deliver more space per pound and are popular in Wirral where maximising space without losing your whole garden matters.

Yes — brick matching is one of the most important parts of any extension. We source from specialist suppliers across the North West and regularly match Victorian, Edwardian, and modern brick profiles common across Wirral. We bring sample bricks to your site visit to check against your property before any work begins.

No — in almost all cases you can stay in your home throughout. The most disruptive phase is breaking through the existing wall to connect the extension, which typically takes one to two days. We plan the build programme to minimise disruption and always leave your home secure at the end of each working day.

Yes. A well-built rear extension in Wirral typically adds more value than it costs — particularly open-plan kitchen-diners and extra bedrooms. Adding 25–30m² of quality living space can increase your property's value by £40,000–£60,000+ depending on location and specification. We can discuss the most value-adding approach at your free site visit.

Yes. Building regulations require structural engineer drawings and calculations for all extension work before any foundations are dug. We arrange these through our trusted structural engineer as part of the project — the cost is included in your fixed written quote. You receive a full building regs completion certificate at the end.