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Bedroom extensions in Bridport

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

  • Guide price in BridportFrom £26,500 inc VAT
  • PlanningUsually a householder application
  • Build time14–22 weeks on site
  • Postcode districtsDT6
Bedroom in an extension with a roof window and an en-suite shower room

When a bedroom extension makes sense

  • Homeowners who want an en-suite master bedroom
  • Growing families
  • Multi-generational households

New bedrooms on an upper floor need an escape window or a protected route to the outside under the building regulations. We design the window sizes and stair route to meet that from the outset.

What should I budget for a bedroom extension in Bridport?

Labour and material costs vary across the UK, so for Bridport we use our South West England factor (×1.02). The ranges include VAT and exclude design, structural and council fees.

Typical rates in Bridport: £1,630 to £3,260 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
One bedroom
12 m²
£26,500 – £32,500£26,500 – £34,500£29,000 – £39,500
Bedroom and en-suite
18 m²
£29,000 – £36,000£34,500 – £45,000£44,000 – £59,000
Two rooms
30 m²
£48,500 – £60,000£58,000 – £75,000£73,000 – £98,000

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

Covering Bridport

Our survey diary covers Bridport, including DT6. We also work in nearby Dorchester (15 miles), Weymouth (16 miles), Poole (35 miles), Wimborne Minster (35 miles).

Yeovil, in Somerset, is roughly 15 miles from Bridport and also on our list. South West homes range from terraced streets in the cities to stone cottages and bungalows in the countryside, and conservation areas are common in historic centres.

Planning and approvals in Bridport

In England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.

The planning position for a specific Bridport address depends on its history and any designations, which is why we check it at the first visit.

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.

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

Our process, step by step

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

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. Design and approvals

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  3. Fixed written price

    We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.

  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 Bridport

Will my neighbours in Bridport 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 long does a bedroom extension take to build in Bridport?

On site, typically 14 to 22 weeks once approvals are in place. Before that, allow 8–14 weeks design and approvals.

Do I need building regulations approval in Bridport?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Does an en-suite need a window?

No, but it needs mechanical extraction that meets the building regulations. We design the duct route at the drawing stage.

How much does a bedroom extension cost?

Our guide range is about £1,630 to £3,260 per m² including VAT. A bedroom with an en-suite of about 18 m² is typically £34,500 to £45,000 at standard spec, depending on whether it is part of a larger two-storey build.

Book a free site visit in Bridport

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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