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EnglandNorth West

Builders in Cumbria

We take on building projects throughout Cumbria: extensions, lofts, garage conversions, renovations and new builds, with one contract from design to sign-off.

Single-storey extension in Cumbria

£1,850–£2,750 per m² inc VAT

Building costs in the North West run about 6% below the UK average, and the figures for Cumbria are adjusted to reflect that.

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England, Wales, Scotland and Northern Ireland

Building projects we take on in Cumbria

House extensions

Loft conversions

Garage, basement and barn conversions

New build homes

Renovations and structural work

Design and approvals

Guide prices in Cumbria

ProjectGuide range (inc VAT)
Single-storey extensions£1,850–£2,750 per m² of floor area
Double-storey extensions£1,550–£2,350 per m² of floor area (both floors)
Dormer loft conversions£45,000–£64,000 for a typical rear dormer with en-suite
Garage conversions£17,000–£28,000 for a single integral garage
House renovations£850–£1,700 per m² for a medium to full renovation
New build homes£1,900–£3,000 per m² of floor area (build cost)

Building costs in the North West run about 6% below the UK average, and the figures for Cumbria are adjusted to reflect that.

Planning and building control in Cumbria

In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.

In England a rear dormer is often permitted development if the extra roof volume is no more than 40 cubic metres on a terraced house or 50 on other houses, it does not face the road, sits no higher than the ridge and is set back from the eaves, with matching materials and obscure-glazed side windows. Balconies, front dormers and work in conservation areas need planning permission.

Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.

Building in Cumbria

The North West has many brick terraces and inter-war semis, where kitchen extensions and dormer loft conversions add space without moving.

Questions about building in Cumbria

Do you cover all of Cumbria?

Yes. We take on projects across Cumbria, including Carlisle, Barrow in Furness, Kendal, Whitehaven and Workington.

How much does an extension cost in Cumbria?

A single-storey extension in Cumbria typically costs £1,850–£2,750 per m² of floor area, including VAT.

Do I need planning permission in Cumbria?

In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.

Who approves building work in Cumbria?

Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.

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