2 Chapel Walk Mill Road Avenue Angmering BN16 4HS Data via plota.co.uk

Proposal

Proposed bay window and porch extension to the front. Installation of a new window within the front gable. Changes to fenestrations and roof lights. Changes to the garden layout and installation of ramped steps. This application may affect the character and appearance of the Angmering Conservation Area. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
1 Aug 2026
✓
Validated
7 Aug 2026
✓
Approved
30 Sept 2026

Approved on 30 Sept 2026 · Last checked 1 Oct 2026

Site constraints 6

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 ↗
Conservation area about 16 m away: Angmering
The edge of the area; work outside it can still affect its setting.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Also on the record
4 listed buildings within 150 m of the postcode pin; National infrastructure project about 1408 m away: Rampion 2 Offshore Wind Farm; Inside the Rustington 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 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.

Building

Floor area151 m² (1,625 sq ft)
Energy ratingD (68 out of 100), could reach C
PropertyDetached house, 6 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in July 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 4HS
Received
1 Aug 2026
Validated
7 Aug 2026
Parish
Angmering
Case officer
Show
Target decision
2 Oct 2026
Decision
ApproveConditionally
Decision date
30 Sept 2026
Applicant
Show
Agent
NRAS

How this decision compares

Decided in 54 days from validation, about the council's usual 54 days. 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 →

Consultation & key dates

Comments by
11 Sept 2026
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

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.