House extensions in Adur

Adur received 257 householder applications in the last 12 months - about 5 a week. Rear extensions and dormers are the most common. Of the 174 decided so far, 164 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 90 applications
Yesterday Registered AWDM/0817/26

139 West Way Lancing West Sussex BN15 8NB

Single storey rear extension

Householder Application Adur
2 days ago Registered AWDM/1059/26

7 Broomfield Avenue Worthing West Sussex BN14 7RY

Erection of a two-storey side extension and a single-storey rear extension.

Householder Application Adur
8 Sept 2026 Registered AWDM/0684/26

16 Thirlmere Crescent Sompting West Sussex BN15 9UE

Front porch.

Householder Application Adur
8 Sept 2026 Registered AWDM/1043/26

39 Crown Road Shoreham-by-sea West Sussex BN43 6GD

Loft conversion with hip to gable roof extension and front and rear dormers. Single storey rear extension. Removal of existing chimney and flue

Householder Application Adur
7 Sept 2026 Registered AWDM/1011/26

31 Kingston Lane Southwick West Sussex BN42 4SJ

Widening of dropped kerb

Householder Application Adur
7 Sept 2026 Registered AWDM/1024/26

36 East Meadway Shoreham-by-sea West Sussex BN43 5RF

Remove front dormer and pitched roof to existing 1.5 storey element to north side of the existing house. Addition of a part 1st floor, part 2-storey e...

Householder Application Adur
7 Sept 2026 Registered AWDM/1044/26

378 Upper Shoreham Road Shoreham-by-sea West Sussex BN43 5ND

Proposed rear dormer with 3no. new rooflights to front

Householder Application Adur
7 Sept 2026 Registered AWDM/1049/26

26 Mile Oak Road Southwick West Sussex BN42 4QE

Application for Certificate of Lawfulness for proposed siting of a mobile home ancillary to the main dwellinghouse to accommodate a dependant relative...

Certificate Proposed Lawful Use/Dev Adur
4 Sept 2026 Registered AWDM/1048/26

66 Hill Farm Way Southwick West Sussex BN42 4YH

Single storey rear extension. Hip to gable roof extension, front and rear dormers

Householder Application Adur
3 Sept 2026 Registered AWDM/1039/26

6 Ennerdale Drive Sompting West Sussex BN15 9UH

Single-storey front extension, replacement garage, widened driveway entrance.

Householder Application Adur
3 Sept 2026 Registered AWDM/1001/26

Land At Former Site Of 11 And 17 To 27 Albion Street Southwick West Sussex

Application to vary Condition 1 (Approved Plans) of previously approved AWDM/1999/21. Amendments: Remedial work required to solve water ingress issue,...

Removal of Condition Adur
2 Sept 2026 Registered AWDM/1007/26

11 Greenoaks Lancing West Sussex BN15 0HN

Front dormer

Householder Application Adur
2 Sept 2026 Registered AWDM/1030/26

71 Ullswater Road Sompting West Sussex BN15 9UG

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 5m from rear wall of th...

General Permitted Development Extensions Adur
2 Sept 2026 Registered AWDM/1038/26

4 Mill Avenue Shoreham-by-sea West Sussex BN43 5GF

Garden room to replace garage

Householder Application Adur
1 Sept 2026 Registered AWDM/0499/26

27 Southview Road Southwick West Sussex BN42 4TW

Single storey rear extension and single storey infill/side extension.

Householder Application Adur
1 Sept 2026 Registered AWDM/0985/26

90 Upper Brighton Road Sompting West Sussex BN15 0LB

Single storey rear infill extension

Householder Application Adur
1 Sept 2026 Registered AWDM/1022/26

25 Stoney Lane Shoreham-by-sea West Sussex BN43 6LA

Single storey rear extension (retrospective)

Householder Application Adur
28 Aug 2026 Registered AWDM/1016/26

74 Old Fort Road Shoreham-by-sea West Sussex BN43 5HA

Amendment to approved application AWDM/0189/26 to include a turret to the rear elevation and remodelled front facing dormer windows. ORIGINAL DESCRIPT...

Householder Application Adur
28 Aug 2026 Registered AWDM/0957/26

94 High Street Shoreham-by-sea West Sussex BN43 5DB

Retrospective application for the retention of white-painted faux-stone cladding to the ground-floor front and side elevations and retractable fabric ...

Full Application Adur
28 Aug 2026 Registered AWDM/1018/26

2 New Barn Close Shoreham-by-sea West Sussex BN43 6HJ

Proposed rooms in roof consisting of rear dormer with Juliet balcony, side gable and rooflights to front elevation.

Householder Application Adur
27 Aug 2026 Registered AWDM/1009/26

24 The Marlinespike Shoreham-by-sea West Sussex BN43 5RD

Single storey front extension, single storey rear extension, single storey side extension to extend the existing garage. New velux windows on North an...

Householder Application Adur
25 Aug 2026 Approved AWDM/1002/26

113 The Crescent Southwick West Sussex BN42 4LH

Application for Certificate of Lawfulness for Proposed loft conversion with gable-end and rear dormer and rooflights to front

Certificate Proposed Lawful Use/Dev Adur
24 Aug 2026 Registered AWDM/0990/26

22 Kings Road Southwick West Sussex BN42 4RJ

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 4.3m from rear wall of ...

General Permitted Development Extensions Adur
24 Aug 2026 Registered AWDM/0767/26

54 Hillrise Avenue Sompting West Sussex BN15 0LU

Proposed balcony to the rear on top of the existing rear extension, and erection of outbuilding (pool room) in the rear garden with glass roof

Householder Application Adur
24 Aug 2026 Registered AWDM/0787/26

3 Queens Road Lancing West Sussex BN15 8ED

Single storey rear extension and external cladding (retrospective)

Householder Application Adur
24 Aug 2026 Registered AWDM/0983/26

41 Howard Road Sompting West Sussex BN15 0LW

Demolition of existing conservatory and garage. New single storey rear extension.

Householder Application Adur
24 Aug 2026 Registered AWDM/0998/26

68 Kingston Lane Shoreham-by-sea West Sussex BN43 6YQ

Single storey rear extension

Householder Application Adur
20 Aug 2026 Registered AWDM/0979/26

10 Manor Hall Road Southwick West Sussex BN42 4NB

Single storey rear extension

Householder Application Adur
20 Aug 2026 Registered AWDM/0829/26

4 Mountview Road Sompting West Sussex BN15 0JZ

Proposed loft conversion with hip-to-gable extension, and front and rear facing dormers

Householder Application Adur
20 Aug 2026 Registered AWDM/0924/26

17 Hammy Way Shoreham-by-sea West Sussex BN43 6GH

Proposed wrap-around extension to the rear and side, raised patio at the rear, replacement and enlargement of existing porch, loft conversion with hip...

Householder Application Adur
19 Aug 2026 Decided AWDM/0958/26

7 Burnside Crescent Sompting West Sussex BN15 9TN

Application for Certificate of Lawfulness for proposed side dormers to north and south roof slopes, first floor window to West elevation

Certificate Proposed Lawful Use/Dev Adur
19 Aug 2026 Registered AWDM/0968/26

1 Parkhaven Court Crabtree Lane Lancing West Sussex BN15 9PH

Two-storey front and side extensions

Householder Application Adur
19 Aug 2026 Registered AWDM/0978/26

14 Rectory Road Shoreham-by-sea West Sussex BN43 6EA

Proposed dropped kerb and permeable hardstanding to form driveway in front garden.

Householder Application Adur
18 Aug 2026 Registered AWDM/0884/26

219 Harbour Way Shoreham-by-sea West Sussex BN43 5HZ

Single storey side extension and new replacement boundary wall treatment

Householder Application Adur
18 Aug 2026 Registered AWDM/0959/26

19 Oxen Avenue Shoreham-by-sea West Sussex BN43 5AF

Application for Certificate of Lawfulness to re-model existing garage to a utility room and ground floor shower room with a pitched lean-to roof and t...

Certificate Proposed Lawful Use/Dev Adur
17 Aug 2026 Approved AWDM/0936/26

90 Victoria Road Shoreham-by-sea West Sussex BN43 5WS

Application for Certificate of Lawfulness for proposed replacement sash windows.

Certificate Proposed Lawful Use/Dev Adur
13 Aug 2026 Registered AWDM/0947/26

Katherines Lodge Penhill Road Lancing West Sussex

Replacement door and windows to the common parts.

Full Application Adur
12 Aug 2026 Approved AWDM/0939/26

201 Old Shoreham Road Southwick West Sussex BN42 4LS

Construction of a new dropped kerb and vehicle access to property. Existing grassed area will be replaced with permeable block paving.

Householder Application Adur
12 Aug 2026 Registered AWDM/0943/26

69 Crown Road Shoreham-by-sea West Sussex BN43 6GD

Single storey rear extension

Householder Application Adur
11 Aug 2026 Registered AWDM/0938/26

15 Oldfield Crescent Southwick West Sussex BN42 4GA

Demolition of existing garage and single storey side extension. Erection of single storey side extension with flat roof/parapet detail.

Householder Application Adur
10 Aug 2026 Approved AWDM/0915/26

398 Upper Shoreham Road Shoreham-by-sea West Sussex BN43 5ND

Application for Certificate of Lawfulness for proposed single storey rear extension

Certificate Proposed Lawful Use/Dev Adur
10 Aug 2026 Registered AWDM/0927/26

63 Boundstone Lane Sompting West Sussex BN15 9QU

Vehicle access onto Cokeham Road

Householder Application Adur
10 Aug 2026 Registered AWDM/0923/26

137 Manor Hall Road Southwick West Sussex BN42 4NQ

Single storey rear extension

Householder Application Adur
10 Aug 2026 Approved AWDM/0928/26

94 Eastern Avenue Shoreham-by-sea West Sussex BN43 6PE

Application for Certificate of Lawfulness for proposed single storey 4m rear extension (already granted under AWDM/0796/26) and loft conversion compri...

Certificate Proposed Lawful Use/Dev Adur
7 Aug 2026 Approved AWDM/0800/26

18 Lynchmere Avenue Lancing West Sussex BN15 0PD

Hip to gable roof extension, enlargement of rear dormer; rooflights to front elevation

Householder Application Adur
7 Aug 2026 Registered AWDM/0596/26

60 Chester Avenue Lancing West Sussex BN15 8PG

Hip to gable roof extension with front and rear dormers

Householder Application Adur
6 Aug 2026 Registered AWDM/0897/26

1 Lisher Road Lancing West Sussex BN15 9EY

Two storey side extension

Householder Application Adur
6 Aug 2026 Registered AWDM/0916/26

22 Erringham Road Shoreham-by-sea West Sussex BN43 5NQ

Proposed single storey rear extension; extension of part hipped roof to form side gables with new second floor window to north side; roof extension to...

Householder Application Adur
5 Aug 2026 Registered AWDM/0903/26

31 Albert Road Southwick West Sussex BN42 4GE

Conversion of existing roof into habitable space with a new rear dormer and two conservation style front rooflights. Demolition and rebuild rear exten...

Householder Application Adur
5 Aug 2026 Approved AWDM/0905/26

39 Rectory Farm Road Sompting West Sussex BN15 0ED

Two storey side extension

Householder Application Adur
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Adur?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Adur. You can also narrow the alert to a postcode, street, or drawn area.

We check Adur's planning portal daily. New extensions applications appear here within a day of being published.