House extensions in Brighton and Hove

Brighton and Hove received 1,124 householder applications in the last 12 months - about 22 a week. Rear extensions and dormers are the most common. Of the 808 decided so far, 779 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 275 applications
Yesterday Registered BH2026/01387

5 Meadway Crescent Hove BN3 7NJ

Erection of single storey rear extension and roof alterations incorporating hip-to-gable roof extension with front rooflights, obscure-glazed side win...

Householder Planning Consent Brighton And Hove
23 Oct 2026 Registered BH2026/02335

Upper Maisonette 123 Marine Parade Brighton BN2 1DD

Internal modifications and alterations to layout, including creation of new shower room at second floor and new bathroom at third floor.

Listed Building Consent Brighton And Hove
23 Oct 2026 Registered BH2026/02348

302 Ditchling Road Brighton BN1 6JG

Erection of flat roofed single storey outbuilding to provide ancillary storage space and replacement of brick boundary wall with painted sand and ceme...

Full Planning Brighton And Hove
22 Oct 2026 Registered BH2026/02006

18B Salisbury Road Hove BN3 3AD

Erection of an L-shaped garden office with a flat roof and maximum height of 2.5m, comprising a main room of approximately 5.05m x 3.5m and an integra...

Full Planning Brighton And Hove
21 Oct 2026 Registered BH2026/02318

62 Ladysmith Road Brighton BN2 4EG

Prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.5m, for which th...

Prior Approval Extension Brighton And Hove
20 Oct 2026 Registered BH2026/02336

26 Saltdean Drive Saltdean Brighton BN2 8SB

Proposed rear facing balcony.

Householder Planning Consent Brighton And Hove
20 Oct 2026 Registered BH2026/02184

26 East Drive Brighton BN2 0BQ

Installation of dormer to East elevation to replace rooflight and replacement of 2no rooflights on South elevation with 1no rooflight.

Householder Planning Consent Brighton And Hove
20 Oct 2026 Registered BH2026/02213

14 Dallington Road Hove BN3 5HS

Prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.65m, for which t...

Prior Approval Extension Brighton And Hove
19 Oct 2026 Registered BH2026/02362

Flat 8 32 Brunswick Place Hove BN3 1NA

Replacement of 2no windows to rear and side elevation (retrospective).

Full Planning Brighton And Hove
19 Oct 2026 Registered BH2026/02358

72A Balsdean Road Brighton BN2 6PF

Erection of side and rear lower ground flat roof extension, ground floor extension to create atrium and side porch extension.

Householder Planning Consent Brighton And Hove
19 Oct 2026 Registered BH2026/02333

Ground Floor Flat 2 34E Egremont Place Brighton BN2 0GB

Replacement of two windows with UPVC at the rear of the building.

Full Planning Brighton And Hove
19 Oct 2026 Registered BH2026/02325

Ground Floor Flat 32 Albany Villas Hove BN3 2RW

Replacement of front facing bay window to ground floor flat, with heritage double glazed bay window.

Full Planning Brighton And Hove
19 Oct 2026 Registered BH2026/02278

Flat 8A Verner House 1 - 7 Victoria Terrace Hove BN3 2WB

Replacement sash windows and French doors.

Listed Building Consent Brighton And Hove
19 Oct 2026 Registered BH2026/02277

Flat 8A Verner House 1 - 7 Victoria Terrace Hove BN3 2WB

Replacement sash windows and French doors.

Full Planning Brighton And Hove
19 Oct 2026 Registered BH2026/02169

Flat 8 32 Brunswick Place Hove BN3 1NA

Replacement of 2 windows (Retrospective).

Listed Building Consent Brighton And Hove
19 Oct 2026 Registered BH2026/02124

11 Grand Avenue Hove BN3 2LF

Installation of 4no decorative columns outside front and side elevations.

Listed Building Consent Brighton And Hove
19 Oct 2026 Registered BH2026/02123

11 Grand Avenue Hove BN3 2LF

Installation of 4no decorative columns outside front and side elevations.

Full Planning Brighton And Hove
16 Oct 2026 Registered BH2026/02349

38 Poplar Avenue Hove BN3 8PU

Erection of single storey rear extension to replace existing and replacement of existing garage with new garden shed.

Householder Planning Consent Brighton And Hove
16 Oct 2026 Registered BH2026/02346

59 Southampton Street Brighton BN2 9UT

Warm roof insulation to existing loft conversion with revised fenestration and erection of single storey rear extension to replace existing lightwell.

Householder Planning Consent Brighton And Hove
16 Oct 2026 Registered BH2026/02174

Communication Station SUSSEX POLICE TQ33600 05900 Race Hill Brighton BN2 9XZ

Replacement of existing fence with more secure fence.

Full Planning Brighton And Hove
16 Oct 2026 Registered BH2026/02286

74 Chester Terrace Brighton BN1 6GD

Rear and side single storey extension with tiled pitched roof and rooflights

Householder Planning Consent Brighton And Hove
16 Oct 2026 Registered BH2026/02103

Second Floor Flat 50 Stanford Avenue Brighton BN1 6FD

New dormer to rear roofslope.

Full Planning Brighton And Hove
16 Oct 2026 Registered BH2026/02039

Flat 6 Tenby Court 13 Adelaide Crescent Hove BN3 2JF

Lowering of hopper to rear elevation to facilitate increased fall within internal gutter.

Listed Building Consent Brighton And Hove
15 Oct 2026 Registered BH2026/00148

Ireland Lodge Lockwood Crescent Brighton BN2 6UH

Installation of additional 2.4m high anti-climb fence to the external garden area of an existing residential home to provide for enhanced safeguarding...

Full Planning Brighton And Hove
14 Oct 2026 Registered BH2026/02337

35B Providence Place Brighton BN1 4GE

Installation of new façade to building incorporating aluminium rainscreen cladding, curtain wall glazing and aluminium doors.

Full Planning Brighton And Hove
14 Oct 2026 Registered BH2026/02338

12 Nevill Way Hove BN3 7QL

Proposed 2 storey side extension, extension of existingfirst floor balcony to rear and revised fenestration.

Householder Planning Consent Brighton And Hove
14 Oct 2026 Registered BH2026/02332

4 Ridge View Brighton BN1 9AL

Erection of two-storey rear extension with a mono-pitched roof, no.3 roof lights, and fenestration to the rear.

Householder Planning Consent Brighton And Hove
13 Oct 2026 Registered BH2026/02330

25 Wivelsfield Road Saltdean Brighton BN2 8FP

Erection of single storey rear extension comprising of sunken flat roof with roof light and perimeter pitched roof. Installation of UPVC ground floor ...

Householder Planning Consent Brighton And Hove
13 Oct 2026 Registered BH2026/02329

9 Windlesham Close Portslade BN41 2LL

Use of land for siting a mobile unit for use ancillary to the main dwelling.

Lawful Development Certificate Proposed Brighton And Hove
13 Oct 2026 Registered BH2026/02328

3 Hove Park Way Hove BN3 6PS

Hip to gable roof alteration including rear dormer with balcony, installation of velux windows and installation of solar panels on front and rear roof...

Householder Planning Consent Brighton And Hove
13 Oct 2026 Registered BH2026/02321

2 Albany Villas Hove BN3 2RU

Replace existing balcony with larger balcony and steps down to garden.

Listed Building Consent Brighton And Hove
13 Oct 2026 Registered BH2026/02320

2 Albany Villas Hove BN3 2RU

Replace existing balcony with larger balcony and steps down to garden.

Householder Planning Consent Brighton And Hove
13 Oct 2026 Registered BH2026/02319

62 Ladysmith Road Brighton BN2 4EG

Certificate of lawfulness for proposed roof alterations/extensions including rear dormer and front rooflights.

Lawful Development Certificate Proposed Brighton And Hove
13 Oct 2026 Registered BH2026/02113

Marine Square Mews 29 Marine Square Brighton BN2 1DN

Replacement of roof with slate tiles, new and replacement windows and doors, repositioning of front door to South elevation and associated alterations...

Householder Planning Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02117

16 Steyning Avenue Hove BN3 8GX

Erection of single storey rear extension, with raised terrace.

Householder Planning Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02309

Flat 5 31 Adelaide Crescent Hove BN3 2JH

Replacement door and windows to rear elevation.

Listed Building Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02308

Flat 5 31 Adelaide Crescent Hove BN3 2JH

Replacement door and windows to rear elevation.

Full Planning Brighton And Hove
12 Oct 2026 Registered BH2026/02302

Flat 4 50 Montpelier Road Brighton BN1 3BA

Replacement bay window with double glazed bay window.

Listed Building Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02301

Flat 4 50 Montpelier Road Brighton BN1 3BA

Replacement bay window with double glazed bay window.

Full Planning Brighton And Hove
12 Oct 2026 Registered BH2026/02240

24 Atlingworth Street Brighton BN2 1PL

Internal alterations to layout to facilitate conversion from eight room house in multiple occupation (Sui Generis) and lower ground floor studio flat ...

Listed Building Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02098

Theatre Royal 35 Bond Street Brighton BN1 1SD

Creation of single door opening at second floor level.

Listed Building Consent Brighton And Hove
12 Oct 2026 Registered BH2026/02303

14 Fairlie Gardens Brighton BN1 6PY

Proposed certificate of lawfulness for alterations to windows on north side elevation, installation of solar panels to rear-facing roof and erection o...

Lawful Development Certificate Proposed Brighton And Hove
12 Oct 2026 Registered BH2026/02299

110 Bexhill Road Brighton BN2 6QA

Proposed certificate of lawfulness for erection of outbuilding in rear garden.

Lawful Development Certificate Proposed Brighton And Hove
9 Oct 2026 Registered BH2026/02245

87 Coombe Vale Saltdean Brighton BN2 8HN

Demolition of the existing garage and replace with a side extension. Enlarge the existing roof and alter its form including raising the ridge by 1.5m,...

Householder Planning Consent Brighton And Hove
9 Oct 2026 Registered BH2026/02063

17 And 18 Newark Place Brighton BN2 9NT

Conversion at 18 Newark Place Ground Floor from workshop (B2) to residential (C3) to combine with existing flat at First Floor to form a single dwelli...

Full Planning Brighton And Hove
8 Oct 2026 Registered BH2026/02291

140 Longhill Road Brighton BN2 7BD

Installation of two dormer windows on side elevations.

Householder Planning Consent Brighton And Hove
8 Oct 2026 Registered BH2026/02281

60 Rutland Road Hove BN3 5FE

Erection of single-storey rear extension at ground floor level and revised fenestration.

Full Planning Brighton And Hove
8 Oct 2026 Registered BH2026/02287

35 Victoria Street Brighton BN1 3FQ

Ground floor side return extension, ground and first floor rear extension modification, replacement of non-original pitched roof tiles with slate grey...

Householder Planning Consent Brighton And Hove
8 Oct 2026 Registered BH2026/02243

56 North Lane Portslade BN41 2HG

Proposed single storey rear extension.

Householder Planning Consent Brighton And Hove
6 Oct 2026 Registered BH2026/02270

51 Hove Park Road Hove BN3 6LH

Roof alterations including conversion from hip to barn-end, installation of roof lights and a rear dormer.

Householder Planning Consent Brighton And Hove
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Brighton and Hove?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Brighton and Hove. You can also narrow the alert to a postcode, street, or drawn area.

We check Brighton and Hove's planning portal daily. New extensions applications appear here within a day of being published.