31 Highdown Southwick West Sussex BN42 4QT Data via plota.co.uk

AWDM/1156/26 - Certificate Proposed Lawful Use/Dev Registered

Proposal

Application for Certificate of Lawfulness for hip to gable roof extension and rear dormer Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
1 Oct 2026
✓
Validated
2 Oct 2026
Decision
Expected by 27 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 14 Nov 2026 and 24 Nov 2026, from Adur's recent extensions.

Site constraints 3

Also on the record
Radon affected area, class 4; National park about 276 m away: South Downs; Inside the Southwick (Adur) 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 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 £315,000 in November 2018. Semi-detached house, freehold.

2 November 2018£315,000

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

Building

Floor area96 m² (1,033 sq ft)
Energy ratingD (59 out of 100), could reach B
PropertySemi-detached house, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in June 2018, 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
Certificate Proposed Lawful Use/Dev
Postcode
BN42 4QT
Received
1 Oct 2026
Validated
2 Oct 2026
Ward
Hillside
Case officer
Show
Target decision
27 Nov 2026
Applicant
Show
Agent
Krona Design Ltd.

Decision outlook

Day 7 of the 56-day target. Adur usually decides extensions by day 49.

Day 749 days to the 56-day target
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

No public comments yet.

Last counted 3 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15257437
Planning Portal ref
PP-15257437
Statutory expiry
27 Nov 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.