Full extensions in Sandwich.

Why an extension is a different scale of project

An extension involves groundwork, foundations, structural steelwork where needed, brickwork to match the existing house, a roof, and full fit-out inside, all before it functions as a room. It typically needs Building Regulations sign-off and, depending on size and the property, may need planning permission. We handle the build; where planning or Building Regs advice is needed we point you to the right professional or coordinate directly with one on your behalf.

Matching the existing house

The extensions that age well are the ones where the brickwork, roofline and proportions were considered against the existing house from the start, not treated as an afterthought once the shell is up. On the older Sandwich-area housing stock in particular, matching brick colour and coursing takes real attention, a mismatched extension is obvious from the street for decades.

Single-storey vs double-storey

A single-storey extension (a larger kitchen-diner, an extra reception room) is the more common project and the one most homeowners are picturing. A double-storey extension adds a room upstairs at the same time, which is more efficient use of the groundwork and foundation cost already being spent, worth discussing if you are extending regardless.

Typical cost and timeline

A single-storey extension typically runs £36,000 to £68,000 depending on size, specification and site access. Costs scale with floor area and how complex the ground conditions and roof junction are. On-site build time is typically 10 to 16 weeks once started, on top of design and any planning/Building Regs lead time beforehand.

Getting a quote

Extensions need a site visit and, in most cases, drawings before a firm price is possible. We can talk through scale and rough budget over the phone or WhatsApp first, then arrange a visit to take it further.