4 Mountview Road Sompting West Sussex BN15 0JZ Data via plota.co.uk

AWDM/0829/26 - Householder Application Refused

Proposal

Proposed loft conversion with hip-to-gable and roof extension, front and rear facing dormers Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Jul 2026
✓
Validated
20 Aug 2026
✓
Consultation
21 Aug 2026
✗
Refused
22 Sept 2026
Appeal
Not lodged

Refused on 22 Sept 2026 · Delegated Decision · Last checked 27 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 park about 171 m away: South Downs; Local nature reserve about 348 m away: Lancing Ring; National infrastructure project about 1322 m away: Rampion Offshore Wind Farm; Inside the Lancing and Sompting 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. 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 2

Last sold for £298,000 in July 2017. Terraced house, freehold.

28 July 2017£298,000
27 March 2006£154,400

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

Building

Floor area89 m² (958 sq ft)
Energy ratingC (70 out of 100), could reach B
PropertySemi-detached bungalow, 4 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in February 2017, 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
Adur
Application type
Householder Application
Postcode
BN15 0JZ
Received
10 Jul 2026
Validated
20 Aug 2026
Ward
Cokeham
Parish
Sompting Parish Council
Case officer
Show
Target decision
15 Oct 2026
Decision
Refusal
Decision date
22 Sept 2026
Decision level
Delegated Decision
Applicant
Show

How this decision compares

Decided in 33 days from validation, 16 days faster than Adur's median of 49 for extensions. Refused, as 6% of extensions here are.

66%decided within 8 weeks
94%approved
221decided in the last year

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

Public comments

1comment received
1 supporting

4 neighbours consulted · Last counted 27 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
21 Aug 2026
Consultation
21 Aug 2026
Comments by
11 Sept 2026
Statutory expiry
15 Oct 2026
Env. assessment
No
Adur
Planning Authority Score
6/10
Average
#103 of 296 councils
Relevant to this application:
Householder decisions

Adur ranks #181 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (96%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Adur decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #49 of 296
96%
Householder approved
Above avg (90%) #48 of 296
60%
Decided in 8 weeks
Below avg (63%) #181 of 296
38%
Extended time limit
Below avg (41%) #125 of 296
70%
Minor dwellings approved
20 decided (1-9 homes)
100%
Major dwellings approved
2 decided (10+ homes)
100%
Change of use approved
5 decided
298
Total decisions
20 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.