House extensions in Adur

Adur received 295 householder applications in the last 12 months - about 6 a week. Rear extensions and dormers are the most common. Of the 244 decided so far, 229 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 86 applications
22 Oct 2026 Registered AWDM/1210/26

Highview Mount Way Lancing West Sussex BN15 0QD

Single-storey rear/side extension, first-floor front extension above the existing entrance hallway, external alterations and associated works.

Householder Application Adur
21 Oct 2026 Registered AWDM/1191/26

27 Whitelot Way Southwick West Sussex BN42 4YF

Single storey rear extension

Householder Application Adur
21 Oct 2026 Registered AWDM/1239/26

7 Kings Road Southwick West Sussex BN42 4RJ

Proposed side dormers

Householder Application Adur
21 Oct 2026 Registered AWDM/1241/26

4 Mountview Road Sompting West Sussex BN15 0JZ

Proposed loft conversion to include side hip to gable roof extension and front and rear dormers

Householder Application Adur
21 Oct 2026 Registered AWDM/1233/26

2 Curvins Way Lancing West Sussex BN15 9JQ

Proposed Two Storey Side Extension.

Householder Application Adur
16 Oct 2026 Registered AWDM/1174/26

Monks Recreation Ground Crabtree Lane Lancing West Sussex

Ground floor front and side extensions and first floor extension of Youth Hub building

Full Application Adur
15 Oct 2026 Registered AWDM/1213/26

13 Firle Road Lancing West Sussex BN15 0NY

Lower ground floor rear extension with balcony above, single storey rear extension, loft conversion with hip to gable roof extensions, rear dormer and...

Householder Application Adur
13 Oct 2026 Registered AWDM/1170/26

27 Ingleside Crescent Lancing West Sussex BN15 8EN

Loft conversion incorporating hip to side gable roof extension, front and rear dormers, front rooflight and side first floor window in new gable

Householder Application Adur
13 Oct 2026 Registered AWDM/1105/26

Meadway Old Salts Farm Road Lancing West Sussex BN15 8JD

Proposed single storey rear extension, porch and internal alterations.

Householder Application Adur
7 Oct 2026 Registered AWDM/1175/26

54 Grand Avenue Lancing West Sussex BN15 9PZ

Application for Certificate of Lawfulness for proposed loft conversion with rear dormer, front roof lights and front porch

Certificate Proposed Lawful Use/Dev Adur
7 Oct 2026 Registered AWDM/1122/26

53 South Street Lancing West Sussex BN15 8AN

Proposed replacement windows and doors

Full Application Adur
6 Oct 2026 Registered AWDM/0545/26

8 Seahaven Gardens Shoreham-by-sea West Sussex BN43 5NX

Work cabin built on the rear of the garage (Retrospective)

Householder Application Adur
2 Oct 2026 Registered AWDM/1169/26

3 Upper Kingston Lane Shoreham-by-sea West Sussex BN43 6TG

Single storey front extension

Householder Application Adur
2 Oct 2026 Registered AWDM/1156/26

31 Highdown Southwick West Sussex BN42 4QT

Application for Certificate of Lawfulness for hip to gable roof extension and rear dormer

Certificate Proposed Lawful Use/Dev Adur
1 Oct 2026 Registered AWDM/1152/26

36 The Crescent Lancing West Sussex BN15 8PJ

Proposed single storey rear extension

Householder Application Adur
30 Sept 2026 Registered AWDM/1123/26

9 Holmbush Way Southwick West Sussex BN42 4YA

Proposed hip to gable roof extension; front and rear dormers

Householder Application Adur
29 Sept 2026 Registered AWDM/0381/26

11 Carisbrooke Close Lancing West Sussex BN15 0HF

Single storey side extension

Householder Application Adur
29 Sept 2026 Registered AWDM/1142/26

13 Old Shoreham Road Southwick West Sussex BN42 4RD

Replacement of conservatory with single storey rear extension

Householder Application Adur
23 Sept 2026 Registered AWDM/1137/26

90 Hillrise Avenue Sompting West Sussex BN15 0LS

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 4m from rear wall of th...

General Permitted Development Extensions Adur
22 Sept 2026 Registered AWDM/1124/26

3 Rectory Walk Sompting West Sussex BN15 0DU

Installation of new timber feather-edge boundary fencing and associated pedestrian gates to the front and side garden boundaries, together with remova...

Householder Application Adur
17 Sept 2026 Registered AWDM/1095/26

18 Cokeham Road Sompting West Sussex BN15 0AA

Single storey front extension to existing garden 'granny' annex.

Householder Application Adur
17 Sept 2026 Registered AWDM/1108/26

50 Clarendon Road Shoreham-by-sea West Sussex BN43 6YG

First floor rear extension

Householder Application Adur
16 Sept 2026 Awaiting decision AWDM/1097/26

83 Howard Road Sompting West Sussex BN15 0LP

Retrospective planning permission for a replacement detached ancillary garden room.

Householder Application Adur
16 Sept 2026 Registered AWDM/1093/26

56 Dankton Gardens Sompting West Sussex BN15 0DX

Retrospective application for retention of existing fencing to Western boundary

Householder Application Adur
15 Sept 2026 Approved 20 Oct AWDM/1086/26

27 Park Lane Southwick West Sussex BN42 4DL

The addition of a new entrance lobby, proposed roof extension to form 1st floor observatory, conversion of existing internal badminton court into a ho...

Householder Application Adur
15 Sept 2026 Registered AWDM/1087/26

3 Winterton Way Shoreham-by-sea West Sussex BN43 5RE

Extensions and alterations to an existing chalet bungalow comprising garage conversion with first floor extension over, additional front dormer, two s...

Householder Application Adur
15 Sept 2026 Approved 16 Oct AWDM/1064/26

6 Park Lane Southwick West Sussex BN42 4DL

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 4.5m from rear wall of ...

General Permitted Development Extensions Adur
11 Sept 2026 Approved 5 Oct AWDM/1069/26

24 Park Lane Southwick West Sussex BN42 4DL

Householder application for permitted development for prior approval for single storey extension to rear of property measuring 4.77m from rear wall of...

General Permitted Development Extensions Adur
10 Sept 2026 Approved 23 Oct AWDM/1042/26

36 Ring Road Lancing West Sussex BN15 0QE

Demolition and rebuilding of the existing attached garage and utility accommodation; erection of a first-floor side extension above the garage and par...

Householder Application Adur
10 Sept 2026 Registered AWDM/0817/26

139 West Way Lancing West Sussex BN15 8NB

Alterations to existing side addition including new flat roof and single storey rear extension across full width. (Revised description).

Householder Application Adur
8 Sept 2026 Approved 8 Oct 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 Approved 23 Oct 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 Approved 21 Oct 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/1036/26

1 Liverpool Terrace Worthing West Sussex

Replacement of existing internal doors with new FD30S fire doors.

Listed Building Consent Adur
2 Sept 2026 Approved 21 Oct AWDM/1007/26

11 Greenoaks Lancing West Sussex BN15 0HN

Front dormer

Householder Application Adur
2 Sept 2026 Approved 30 Sep 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 Withdrawn 2 Oct AWDM/1038/26

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

Garden room to replace garage

Householder Application Adur
1 Sept 2026 Approved 8 Oct 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 Approved 12 Oct AWDM/0985/26

90 Upper Brighton Road Sompting West Sussex BN15 0LB

Single storey rear infill extension

Householder Application Adur
1 Sept 2026 Approved 21 Oct AWDM/1022/26

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

Single storey rear extension (retrospective)

Householder Application Adur
28 Aug 2026 Approved 29 Sep 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 Approved 21 Oct 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 Withdrawn 15 Oct 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 Approved 21 Oct AWDM/0992/26

36 Greet Road Lancing West Sussex BN15 9NS

Application for Certificate of Lawfulness for proposed hip to gable roof extension and rear dormer

Certificate Proposed Lawful Use/Dev 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.