15 Millcroft Brighton BN1 5HA Data via plota.co.uk

BH2026/02029 - Prior Approval Extension Approved

Proposal

Prior approval for the erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00m, for which the maximum height would be 3.50m, and for which the height of the eaves would be 2.80m. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
4 Sept 2026
✓
Consultation
8 Sept 2026
✓
Approved
16 Oct 2026

Approved on 16 Oct 2026 · Last checked 17 Oct 2026

Site constraints 4

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 ↗
Also on the record
Local nature reserve 404 m away: Withdean & Westdene Woods; National park 353 m away: South Downs; Inside the Brighton and Hove built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. 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.

Building

Floor area74 m² (797 sq ft)
Energy ratingD (55 out of 100), could reach C
PropertySemi-detached bungalow, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in March 2026, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Prior Approval Extension
Postcode
BN1 5HA
Received
4 Sept 2026
Validated
4 Sept 2026
Ward
Westdene & Hove Park
Case officer
Show
Target decision
16 Oct 2026
Decision
Prior Approval Not Required
Decision date
16 Oct 2026
Applicant
Show
Agent
M J Humphrey ltd

How this decision compares

Decided in 42 days from validation, 14 days faster than Brighton and Hove's median of 56 for extensions. Approved, as 96% of extensions here are.

58%decided within 8 weeks
96%approved
761decided in the last year

Plota live figures for extensions decided by Brighton and Hove in the last twelve months, from validation. Brighton and Hove decision record →

Public comments

No public comments yet.

2 neighbours consulted · Last counted 17 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
8 Sept 2026
Consultation
8 Sept 2026
Comments by
12 Oct 2026
Site or press notice
14 Sept 2026
Statutory expiry
16 Oct 2026
Env. assessment
No
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

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.