46 Coniston Road Worthing West Sussex BN12 6JT Data via plota.co.uk

AWDM/0929/26 - Householder Application Approved

Proposal

Single-storey rear extension. Rooms in roof with rear (North) dormer and two rooflights to the front (south) roofslope Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Aug 2026
✓
Validated
11 Aug 2026
✓
Consultation
12 Aug 2026
✓
Approved
16 Sept 2026

Approved on 16 Sept 2026 · Delegated Decision · Last checked 17 Sept 2026

Site constraints 2

Also on the record
Radon affected area, class 3; Inside the Worthing 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.

Building

Floor area71 m² (764 sq ft)
Energy ratingD (60 out of 100), could reach C
PropertySemi-detached bungalow, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2026, 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
Worthing
Application type
Householder Application
Postcode
BN12 6JT
Received
10 Aug 2026
Validated
11 Aug 2026
Ward
Castle
Case officer
Show
Target decision
6 Oct 2026
Decision
Application Permitted
Decision date
16 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Highcroft Designs

How this decision compares

Decided in 36 days from validation, 14 days faster than Worthing's median of 50 for extensions. Approved, as 92% of extensions here are.

77%decided within 8 weeks
92%approved
275decided in the last year

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

Public comments

No public comments yet.

5 neighbours consulted · Last counted 17 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15085746
Planning Portal ref
PP-15085746
Neighbours
12 Aug 2026
Consultation
12 Aug 2026
Comments by
2 Sept 2026
Statutory expiry
6 Oct 2026
Env. assessment
No
Worthing
Planning Authority Score
4/10
Below average
#194 of 296 councils
Relevant to this application:
Householder decisions

Worthing is slower than most councils at deciding householder applications, ranking #226 out of 296. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Worthing decision statistics
Based on MHCLG data, the year to March 2026
91%
Overall approval rate
Above avg (87%) #105 of 296
94%
Householder approved
Above avg (90%) #124 of 296
53%
Decided in 8 weeks
Below avg (63%) #226 of 296
44%
Extended time limit
Above avg (41%) #188 of 296
72%
Minor dwellings approved
39 decided (1-9 homes)
100%
Major dwellings approved
4 decided (10+ homes)
78%
Change of use approved
36 decided
573
Total decisions
54 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.