Admiral's Knock Mill Lane Rodmell East Sussex BN7 3HS Data via plota.co.uk

SDNP/26/00795/HOUS - Householder Approved

Proposal

Installation of 2no roof dormers and 1no skylight to roof. Installation of balcony. Reconfiguration of conservatory to include removing doors and windows and replacement with inset windows, bifold doors and external timber deck Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
26 Feb 2026
✓
Approved
23 Jul 2026

Approved on 23 Jul 2026 · SDNPA Delegated Decision · Last checked 2 Aug 2026

Site constraints 6

South Downs National Park
The park authority decides applications here. Great weight to conserving the landscape; major development restricted.
Landscape, scenic beauty and wildlife carry great weight, and major development is only allowed in exceptional circumstances.
Habitat network: Network Enhancement Zone 1
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 ↗
Also on the record
Nature improvement area: South Downs Way Ahead; Inside the Rodmell built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
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.

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Important details

Application type
Householder
Postcode
BN7 3HS
Received
26 Feb 2026
Validated
26 Feb 2026
Ward
Kingston Ward
Parish
Rodmell Parish Council
Case officer
Show
Target decision
23 Apr 2026
Decision
Approved
Decision date
23 Jul 2026
Decision level
SDNPA Delegated Decision
Applicant
Show
Agent
Rathbone Miller Architects Limited

How this decision compares

Decided in 147 days from validation, 91 days slower than South Downs's median of 56 for extensions. Approved, as 92% of extensions here are.

50%decided within 8 weeks
92%approved
657decided in the last year

Plota live figures for extensions decided by South Downs in the last twelve months, from validation. South Downs decision record →

Public comments

No public comments yet.

5 neighbours consulted · Last counted 2 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14677503
Planning Portal ref
PP-14677503
Statutory expiry
23 Apr 2026
Env. assessment
No