21 Chailey Avenue Rottingdean Brighton BN2 7GH Data via plota.co.uk

Decided BH2025/01886
Date received
30 Jul 2025
Date validated
29 Aug 2025
Postcode
BN2 7GH

Description

Remodelling of existing dwellinghouse to include demolition of existing rear extension and erection of two-storey rear extension with associated balcony and terrace, construction of side extension with garage, new front porch area, 4no front rooflights, revised fenestration and associated alterations. Data via plota.co.uk

Last checked

Planning committee

Decided by Brighton and Hove Planning Committee on 4 Feb 2026. The council has not yet issued its decision notice.

Approved unanimously

No officer report was published for this decision; this summary is from the committee minutes.

  • The committee agreed with the recommendation’s reasons and granted permission subject to conditions and informatives.
  • Objecting residents raised concerns about overdevelopment, design, overlooking, flooding and local character, while the applicant supported the scheme.
  • The committee voted unanimously to grant planning permission, with one councillor taking no part.
Read how the committee decided The proposal, residents’ concerns, speakers’ views, committee debate, vote and decision.

Source: Plota analysis of Brighton and Hove's committee minutes of 4 Feb 2026.

Site constraints 5

Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Radon affected area, class 5
An estimated 10 to 30% of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
National park about 94 m away: South Downs
Outside the park; its setting can still be raised.
Landscape, scenic beauty and wildlife carry great weight, and major development is only allowed in exceptional circumstances.
Also on the record
SSSI about 216 m away: Brighton to Newhaven Cliffs SSSI; Inside the Brighton and Hove built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 13 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 1

Last sold for £500,000 in November 2024. Detached house, freehold.

1 November 2024£500,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area69 m² (743 sq ft)
Energy ratingF (26 out of 100), could reach B
PropertyDetached house, 5 habitable rooms
Built1967 to 1975
HeatingElectric storage heaters
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2024, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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About Plota's data service
Brighton and Hove
Planning Authority Score
4.3/10
Below average
#185 of 296 councils
Relevant to this application:
Householder decisions

Brighton and Hove is slower than most councils at deciding householder applications, ranking #238 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Brighton and Hove decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #107 of 296
95%
Householder approved
Above avg (90%) #70 of 296
50%
Decided in 8 weeks
Below avg (63%) #238 of 296
46%
Extended time limit
Above avg (41%) #200 of 296
71%
Minor dwellings approved
189 decided (1-9 homes)
100%
Major dwellings approved
4 decided (10+ homes)
70%
Change of use approved
63 decided
1,719
Total decisions
176 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.