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Bedroom extensions across Hove

Our design and build teams take on bedroom extensions in Hove, from the first measured survey through planning and building control to the finished room.

  • Guide price in HoveFrom £29,000 inc VAT
  • PlanningUsually a householder application
  • Build time14–22 weeks on site
  • Postcode districtsBN1, BN2, BN3, BN41
Bedroom in an extension with a roof window and an en-suite shower room

Bedroom extension prices in Hove

These guide figures apply our South East England adjustment (×1.12) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.

Typical rates in Hove: £1,790 to £3,580 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
One bedroom
12 m²
£29,000 – £35,500£29,000 – £38,000£32,000 – £43,500
Bedroom and en-suite
18 m²
£32,000 – £39,500£38,000 – £49,500£48,000 – £65,000
Two rooms
30 m²
£53,500 – £66,000£63,500 – £82,500£80,500 – £108,000

Want a range for your exact size? The guide-price tool takes about a minute.

Who a bedroom extension suits

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

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.

Working in Hove

Our survey diary covers Hove, including BN1, BN2, BN3, BN41. Nearby, we also take on projects in Brighton (1 mile), Portslade (2 miles), Peacehaven (7 miles), Seaford (12 miles).

For homes towards West Sussex, Shoreham-by-Sea is around 5 miles away. Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.

Planning and approvals in Hove

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.

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

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

  2. Design and approvals

    Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.

  3. Fixed written price

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.

Your questions about a bedroom extension in Hove

How long does a bedroom extension take to build in Hove?

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

Will my neighbours in Hove 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.

Do I need building regulations approval in Hove?

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

How much does a bedroom extension cost?

Our guide range is about £1,790 to £3,580 per m² including VAT. A bedroom with an en-suite of about 18 m² is typically £38,000 to £49,500 at standard spec, depending on whether it is part of a larger two-storey build.

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.

Book a free site visit in Hove

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 .

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