Hm Prison Lewes 1 Brighton Road Lewes East Sussex BN7 1EA Data via plota.co.uk

SDNP/26/03481/LIS - Listed Building Application in Progress

Proposal

Intrusive investigation works to the existing boundary wall at HMP Lewes, including localised opening-up and trial investigations to establish the construction, condition and structural arrangement of the historic wall. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
8 Sept 2026
Decision
Expected by 3 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 4 Nov 2026 and 25 Nov 2026, from South Downs's recent listed building works.

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 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 ↗
Registered battlefield 85 m away: Battle of Lewes 1264
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
2 listed buildings within 150 m; Inside the Lewes built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument 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
Listed Building
Postcode
BN7 1EA
Received
8 Sept 2026
Validated
8 Sept 2026
Ward
Lewes Priory Ward
Parish
Lewes Town Council
Case officer
Show
Target decision
3 Nov 2026
Decision level
SDNPA Delegated Decision
Applicant
Show
Agent
Box Architects

Decision outlook

Day 31 of the 56-day target. South Downs usually decides listed building works by day 66.

Day 3135 days to the predicted decision (day 66)
39%decided within 8 weeks
94%approved
215decided in the last year

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

Public comments

No public comments yet.

2 neighbours consulted · Last counted 1 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15195822
Planning Portal ref
PP-15195822
Statutory expiry
3 Nov 2026
Env. assessment
No