Whispers Sunnybox Lane Slindon West Sussex BN18 0LX Data via plota.co.uk

SDNP/26/00282/HOUS - Householder Approved

Proposal

Hip to gable loft extension and rear facing dormer. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
23 Jan 2026
✓
Approved
17 Mar 2026

Approved on 17 Mar 2026 · SDNPA Delegated Decision · Last checked 25 Jul 2026

Site constraints 5

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.
Also on the record
Radon affected area, class 4; Inside the Slindon built-up area; Priority habitat 31 m away: Deciduous woodland.
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
BN18 0LX
Received
23 Jan 2026
Validated
23 Jan 2026
Ward
Arundel Ward
Parish
Slindon Parish Council
Case officer
Show
Target decision
20 Mar 2026
Decision
Approved
Decision date
17 Mar 2026
Decision level
SDNPA Delegated Decision
Applicant
Show
Agent
Architectura Design

How this decision compares

Decided in 53 days from validation, about the council's usual 56 days. 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 →

Consultation & key dates

Alt. reference
PP-14638433
Planning Portal ref
PP-14638433
Statutory expiry
20 Mar 2026
Env. assessment
No

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use