8 Darlington Close Angmering BN16 4GS Data via plota.co.uk

A/95/26/CLP Approved

Proposal

Application for certificate of lawfulness for a proposed single storey flat roof rear extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
9 Jul 2026
✓
Validated
10 Jul 2026
✓
Approved
27 Aug 2026

Approved on 27 Aug 2026 · Last checked 5 Sept 2026

Site constraints 5

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
National infrastructure project about 1705 m away: Rampion 2 Offshore Wind Farm; National park about 415 m away: South Downs; Inside the Rustington built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 1, 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 scheduled monument at the site

Checked on 6 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 Planning Inspectorate, 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 £299,500 in December 2002. Detached house, freehold.

9 December 2002£299,500New build

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

Building

Floor area147 m² (1,582 sq ft)
Energy ratingC (74 out of 100), could reach B
PropertyDetached house, 7 habitable rooms
Built2003 to 2006
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in November 2025, 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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Important details

Council
Arun
Postcode
BN16 4GS
Received
9 Jul 2026
Validated
10 Jul 2026
Parish
Angmering
Case officer
Show
Target decision
4 Sept 2026
Decision
PP Not Required
Decision date
27 Aug 2026
Applicant
Show
Agent
M J Humphrey ltd

How this decision compares

Decided in 48 days from validation, 6 days faster than Arun's median of 54 for extensions. Approved, as 93% of extensions here are.

74%decided within 8 weeks
93%approved
364decided in the last year

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

Arun
Planning Authority Score
8.9/10
Excellent
#4 of 296 councils
Relevant to this application:
Householder decisions

Arun is one of the fastest councils in England for householder decisions, ranking #2 out of 296. Only 12% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Arun decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #187 of 296
94%
Householder approved
Above avg (90%) #97 of 296
99%
Decided in 8 weeks
Above avg (63%) #2 of 296
12%
Extended time limit
Below avg (41%) #4 of 296
45%
Minor dwellings approved
66 decided (1-9 homes)
75%
Major dwellings approved
20 decided (10+ homes)
86%
Change of use approved
35 decided
794
Total decisions
113 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.