90 Hillrise Avenue Sompting West Sussex BN15 0LS Data via plota.co.uk

AWDM/1137/26 - General Permitted Development Extensions Registered

Proposal

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 4m from rear wall of the original dwelling, maximum height 3.5m and height of eaves of the extension 2.5m Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
23 Sept 2026
✓
Consultation
13 Oct 2026
Decision
Expected by 4 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 5 Nov 2026 and 15 Nov 2026, from Adur's recent extensions.

Comments are open until 3 Nov 2026

Comment on this application ↗

Site constraints 8

Local nature reserve about 26 m away: Lancing Ring
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
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 ↗
National park about 27 m away: South Downs
Outside the park; its setting can still be raised.
Landscape, scenic beauty and wildlife carry great weight, and major development is only allowed in exceptional circumstances.
Also on the record
National infrastructure project about 1648 m away: Rampion Offshore Wind Farm; Inside the Lancing and Sompting built-up area; Priority habitat about 26 m away: Deciduous woodland; 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 13 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 £249,950 in January 2017. Semi-detached house, freehold.

27 January 2017£249,950

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

Building

Floor area50 m² (538 sq ft)
Energy ratingD (59 out of 100), could reach B
PropertySemi-detached bungalow, 3 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in October 2016, 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
General Permitted Development Extensions
Postcode
BN15 0LS
Received
23 Sept 2026
Validated
23 Sept 2026
Ward
Cokeham
Parish
Sompting Parish Council
Case officer
Show
Target decision
4 Nov 2026
Applicant
Show
Agent
philipjclay

Decision outlook

Day 35 of the 56-day target. Adur usually decides extensions by day 49.

Day 3521 days to the 56-day target
67%decided within 8 weeks
94%approved
232decided 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.

2 neighbours consulted · Last counted 26 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
13 Oct 2026
Consultation
13 Oct 2026
Comments by
3 Nov 2026
Statutory expiry
4 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.