Skip to content

Extensions in Whitehaven

House Extensions in Whitehaven

A larger kitchen, bedrooms on another floor or a different use for the garage: discuss the extra space your Whitehaven house needs.

Based near St Bees, we cover Whitehaven and its surrounding villages. Bring your idea, sketches or existing drawings to the first conversation.

Distance from our base

about 4 miles

From our base near St Bees to Whitehaven

Driving time

10 to 15 minutes

In normal traffic

Phone or WhatsApp

07546 971358

Call Chris, or use the form below

A Whitehaven extension starts with the existing street

Whitehaven’s Georgian centre has a planned grid of streets with sandstone and rendered buildings. An addition to an older house needs to relate to what is already there: the wall finish, the arrangement of openings and the roof junction are part of the design, not finishing touches.

Bransty and Corkickle bring steep streets and terraced plots into the discussion. Before drawing a large rectangle behind a house, establish how materials could reach it. Tell Chris about a back lane, steps or a shared passage, and show any difference between road and garden levels.

Deciding which space to add

In Woodhouse, Mirehouse, Kells and Greenbank, brick or rendered semis and terraces form a different setting from the old centre. A rear kitchen addition might improve the connection to the garden, while an extra storey might be about bedrooms. Start by explaining the rooms you need, not a finish package.

For a ground-floor scheme, mark the existing kitchen, living room and doors on a sketch. Which room becomes the route through the house? Where would daylight reach the original part? Those questions help describe a useful extension rather than just a larger floor area.

If a garage conversion is another possibility, show the garage in relation to the hallway and the rooms beside it. It changes existing space rather than adding the same kind of new footprint, so use the appropriate project type in the calculator.

Working out the practical brief

Hensingham, Hillcrest, Sandwith and Moresby are among the surrounding places listed on the town page. Give the actual area in your enquiry. Access conditions need to be established at the property; we do not assume that an entire neighbourhood has the same site constraints.

For a terrace, identify any passage shared with a neighbour and say whether it must stay usable during the work. Photograph the route from the delivery point to the back of the house. The shortest line on a plan may not be the route someone carrying materials can take.

If drawings exist, send the version you want discussed and tell us what has changed since an earlier design. Without drawings, a rough sketch and a clear description of the extra room are enough to begin a conversation. Chris can explain what further information is needed.

Price guide

Rough extension prices for Whitehaven

The same figures as our cost calculator. Your price depends on your design, ground and access.

Rough guide only, per m² of new floor area, excluding VAT, design and engineer fees, building control and planning. Figures from our cost calculator, updated November 2026.
ProjectBasicStandardHighExample (standard)
Single-storey extension£1,600–£1,900£1,800–£2,400£2,400–£3,00020 m²: £36,000 to £48,000
Two-storey extension£1,500–£1,800£1,700–£2,200£2,200–£2,80040 m²: £68,000 to £88,000
Kitchen extension£1,700–£2,100£2,000–£2,600£2,600–£3,20025 m²: £50,000 to £65,000
Garage conversion£625–£900£800–£1,100£1,000–£1,40015 m²: £12,000 to £16,500
Work out your own rough price

Existing project photographs

The captions identify the project locations. These are examples already on our site, not a claim of an extension completed in Whitehaven.

Rendered front wall of the Harrington house after external renovation
Rear of the Harrington house showing a raised terrace with frosted glass balustrades and steps down to a gravel garden

Harrington

External Renovation in Harrington

Tiered garden with timber sleeper edging, a large gravel area and artificial turf on the upper level

Seaton

Tiered Garden in Seaton

See our projects

Building work in Whitehaven

For repairs and alterations as well as extra floor space, see our Whitehaven town page.

Building work in Whitehaven

Contact

Tell us about your Whitehaven extension

Tell us what you're thinking of building. Send the form, call Chris, or send the details on WhatsApp.

Photos (optional, up to 3, 8 MB in total)

We aim to reply within 24 hours. We answer every enquiry and turn up when we say we will.

Prefer WhatsApp?

This opens WhatsApp with your details filled in, so you can check the message and send it yourself. You can attach photos there.

Call WhatsApp