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Side extensions in Consett

Consett homeowners can use us for the whole side extension project: survey, design, planning or permitted development checks, building regulations and the build itself.

  • Guide price in ConsettFrom £20,000 inc VAT
  • PlanningSingle storey can be permitted development
  • Build time10–18 weeks on site
  • Postcode districtsDH8
Single-storey side extension with a gable roof beside a block-paved drive

Guide prices for Consett

For Consett we adjust our national guide rates by ×0.91, the factor we use for North East England. Figures include VAT; your written quote after the survey replaces them.

Typical rates in Consett: £1,590 to £3,090 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
2.5 m × 5 m
12 m²
£20,000 – £24,500£22,000 – £29,000£28,000 – £37,500
3 m × 6 m
18 m²
£28,500 – £34,500£33,500 – £43,500£42,500 – £56,000
3 m × 8 m
24 m²
£38,000 – £46,000£44,500 – £58,000£56,500 – £74,500

Try the guide-price tool to see a range for your own size and finish.

Is a side extension right for your house?

  • Detached and semi-detached houses with side land
  • Houses where the rear garden is small
  • Homes needing a utility, study or ground-floor bedroom

Extensions in and around Consett

We cover Consett and the postcode districts DH8. The same team covers Stanley (5 miles), Chester-le-Street (10 miles), Durham (12 miles), Bishop Auckland (15 miles), all within easy reach.

Newburn, in Tyne and Wear, is roughly 10 miles from Consett and also on our list. The North East has many brick terraces, colliery-era housing and post-war semis, with rear extensions and kitchen extensions the most common requests.

Planning rules that apply in Consett

In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.

Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.

Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.

If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.

Applications are decided by the local planning authority (your district, borough or unitary council).

How the project works

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  2. Design and approvals

    Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.

  3. Fixed written price

    The price is fixed in writing once the design is settled, with a clear programme and payment stages.

  4. Build and sign-off

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Common questions in Consett

How long does a side extension take to build in Consett?

On site, typically 10 to 18 weeks once approvals are in place. Before that, allow 6–14 weeks design and approvals.

Do you cover all of Consett?

Yes. We cover Consett and the surrounding parts of County Durham. Site visits are free and there is no obligation.

Will my neighbours in Consett be involved?

If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.

How much does a side extension cost?

Our guide range is about £1,590 to £3,090 per m² including VAT, depending on specification, so a standard 18 m² single-storey side extension lands around £33,500 to £43,500 in Consett.

Can I build a side extension without planning permission?

In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a planning application.

Book a free site visit in Consett

We will measure up, check the planning position and give you honest guide figures.

  • Free, no-obligation site visit
  • Planning route checked before you spend on drawings
  • Written price once the design is agreed
  • Building control sign-off at the end

Prefer to talk? Call 0800 088 6341 or .

Book a free site visit

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