House extensions in Canterbury

Canterbury received 573 householder applications in the last 12 months - about 11 a week. Rear extensions and side extensions are the most common. Of the 419 decided so far, 412 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 140 applications
21 Oct 2026 Awaiting decision CA/26/01696

Tarbarn 31 Tyler Hill Road Blean Kent CT2 9HT

Application for lawful development certificate for proposed replacement of garage door with window.

Cert of proposed lawful use or devt Canterbury
16 Oct 2026 Awaiting decision CA/26/01727

14 Westerham Close Canterbury Kent CT2 7TZ

Single storey rear extension.

Full Application Canterbury
16 Oct 2026 Awaiting decision CA/26/01679

134 Beltinge Road Herne Bay Kent CT6 6HT

Application for lawful development certificate for proposed dropped kerb.

Cert of proposed lawful use or devt Canterbury
16 Oct 2026 Awaiting decision CA/26/01661

26 Field Avenue Canterbury Kent CT1 1TR

Subdivision of dwelling into two dwellings together with single storey rear extension.

Full Application Canterbury
15 Oct 2026 Awaiting decision CA/26/01723

141 Ashford Road Thanington Without Kent CT1 3XR

Two-storey side extension, single-storey rear extension together with 2 roof lights to front elevation, following demolition of existing extension rea...

Full Application Canterbury
15 Oct 2026 Awaiting decision CA/26/01719

9 Strangford Road Whitstable Kent CT5 2EP

Two-storey rear and first-floor extensions together with raised patio.

Full Application Canterbury
15 Oct 2026 Awaiting decision CA/26/01716

Stratford Cottage 8 Chestfield Road Chestfield Kent CT5 3LJ

Single storey rear extension.

Full Application Canterbury
15 Oct 2026 Awaiting decision CA/26/01715

46 Norman Road Whitstable Kent CT5 4JZ

Application for lawful development certificate for proposed single storey rear extension.

Cert of proposed lawful use or devt Canterbury
15 Oct 2026 Awaiting decision CA/26/01427

9 Calais Hill Tyler Hill Kent CT2 9LT

Outdoor swimming pool & plant room together with fencing to Southern boundary.

Full Application Canterbury
14 Oct 2026 Awaiting decision CA/26/01711

47 South Street Whitstable Kent CT5 3DX

Two storey side extension and single storey rear and side extensions following demolition of existing garage and extension.

Full Application Canterbury
13 Oct 2026 Awaiting decision CA/26/01702

14 Stanley Road Whitstable Kent CT5 4NJ

Single-storey rear extension.

Full Application Canterbury
12 Oct 2026 Awaiting decision CA/26/01676

22 Carriage Mews Canterbury Kent CT2 8AL

Replacement doors and windows from timber to upvc to front elevation.

Full Application Canterbury
12 Oct 2026 Awaiting decision CA/26/01699

19 Church Lane Westbere Kent CT2 0HA

Single-storey detached outbuilding.

Full Application Canterbury
12 Oct 2026 Awaiting decision CA/26/01690

6 Elm Wood West Whitstable Kent CT5 2QS

Single-storey rear and side extension and replacement porch together with raised terrace to rear following the demolition existing porch and rear exte...

Full Application Canterbury
12 Oct 2026 Awaiting decision CA/26/01686

39 Nelson Road Whitstable Kent CT5 1EA

Single-storey side and rear extension, first floor rear extension together with single-storey detached outbuilding.

Full Application Canterbury
9 Oct 2026 Awaiting decision CA/26/01681

2 South View Road Whitstable Kent CT5 4NT

Two-storey side extension and first floor side extension together with enlargement of front porch.

Full Application Canterbury
9 Oct 2026 Awaiting decision CA/26/01202

39 Black Griffin Lane Canterbury Kent CT1 2DG

Replacement of windows from timber to timber to front and rear elevation.

Full Application Canterbury
8 Oct 2026 Awaiting decision CA/26/01598

Podlinge Farm Hastingleigh Canterbury Kent TN25 5JF

Single-storey side extension to stables together with single-storey rear extension to barn with canopy to front elevation.

Full Application Canterbury
8 Oct 2026 Awaiting decision CA/26/01435

Oak Lodge The Drove Chestfield Kent CT5 3NY

Replacement of all windows from wood to upvc.

Full Application Canterbury
7 Oct 2026 Awaiting decision CA/26/01668

North East Wing Ground Floor To Second Floor Office Riding Gate House 37 Old Dover Road Canterbury Kent CT1 3JB

Installation of security gate, cycle store, access ramp with handrail together with external condensers with acoustic enclosure.

Full Application Canterbury
7 Oct 2026 Awaiting decision CA/26/01667

St Patrick Joy Lane Whitstable Kent CT5 4LS

Application for lawful development certificate for proposed Air Source Heat Pump to rear elevation.

Cert of proposed lawful use or devt Canterbury
7 Oct 2026 Awaiting decision CA/26/01634

Bleangate Bungalow Braggs Lane Herne Kent CT6 7NP

Single-storey rear and first floor extension.

Full Application Canterbury
6 Oct 2026 Awaiting decision CA/26/01666

11 Sherwood Close Herne Kent CT6 7DX

Two-storey front extension.

Full Application Canterbury
6 Oct 2026 Awaiting decision CA/26/01663

1 Newport Cottages Bekesbourne Hill Bekesbourne Kent CT4 5EF

Single storey rear extension, roof extension with dormers to front and rear together with replacement outbuilding following demolition of conservatory...

Full Application Canterbury
6 Oct 2026 Awaiting decision CA/26/01662

87 St Dunstans Street Canterbury Kent CT2 8AE

Retrospective application for gate within existing rear courtyard entrance.

Full Application Canterbury
6 Oct 2026 Awaiting decision CA/26/01660

19 Oaks Park Rough Common Kent CT2 9DP

Single storey extension rear extension.

Full Application Canterbury
5 Oct 2026 Awaiting decision CA/26/01652

Quinton House Shalloak Road Broad Oak Kent CT2 0PR

Two-storey extension with roof terrace and external staircase.

Full Application Canterbury
5 Oct 2026 Awaiting decision CA/26/01646

40 Martyrs' Field Road Canterbury Kent CT1 3PX

Single-storey side extension and first-floor rear extension following the demolition of existing detached garage.

Full Application Canterbury
5 Oct 2026 Awaiting decision CA/26/01647

136 Beltinge Road Herne Bay Kent CT6 6HT

Application for lawful development certificate for proposed new vehicular access to front.

Cert of proposed lawful use or devt Canterbury
5 Oct 2026 Awaiting decision CA/26/01626

29 Beacon Hill Herne Bay Kent CT6 6JP

Second floor extension with increase roof height together with single storey rear extension.

Full Application Canterbury
5 Oct 2026 Awaiting decision CA/26/01654

23 Cockering Road Thanington Without Kent CT1 3UP

Prior notification received on 05.10.26 and expiring on 16.11.26 for a single-storey rear extension with a depth of 5 metres, eaves height of 2.73 met...

Prior - larger home extension Canterbury
5 Oct 2026 Awaiting decision CA/26/01635

8 Canterbury Hill Tyler Hill Kent CT2 9LS

Single-storey three bay detached garage.

Full Application Canterbury
5 Oct 2026 Awaiting decision CA/26/01605

33A Gordon Road Canterbury Kent CT1 3PW

Single-storey extension to existing garage for use as ancillary accommodation.

Full Application Canterbury
2 Oct 2026 Awaiting decision CA/26/01640

67 High Street Bridge Kent CT4 5LA

Single-storey rear extension following demolition of existing conservatory.

Full Application Canterbury
2 Oct 2026 Awaiting decision CA/26/01636

2 Church Street St Dunstans Canterbury Kent CT2 8AS

Replacement of all windows and doors from timber to timber to front and rear elevation.

Full Application Canterbury
2 Oct 2026 Awaiting decision CA/26/01596

The Granary Sweech Farm Herne Bay Road Sturry Kent CT3 4FZ

Single-storey side extension

Full Application Canterbury
1 Oct 2026 Awaiting decision CA/26/01631

3 High Street Whitstable Kent CT5 1AP

Formation of a recessed entrance lobby, replacement entrance steps, installation of ventilation grilles together with alterations to existing roof-lev...

Full Application Canterbury
30 Sept 2026 Awaiting decision CA/26/01628

2 Wave Crest Whitstable Kent CT5 1EH

Single storey infill and rear extension with part balcony roof and stair access, together with replacement timber double glazed windows and doors, enl...

Full Application Canterbury
29 Sept 2026 Awaiting decision CA/26/01622

12 Shipwrights Lee Island Wall Whitstable Kent CT5 1EW

Replacement of the existing first-floor timber double doors, removal or decorative shutters and replacement of the existing first-floor timber balcony...

Full Application Canterbury
29 Sept 2026 Awaiting decision CA/26/01619

49 Queens Road Whitstable Kent CT5 2JJ

First-floor side extension and second-floor roof extension with balcony.

Full Application Canterbury
29 Sept 2026 Awaiting decision CA/26/01618

39 St Michael's Place Canterbury Kent CT2 7HQ

Single-storey rear extension.

Full Application Canterbury
29 Sept 2026 Approved 12 Oct CA/26/01617

20 Stour Road Chartham Kent CT4 7JE

Application for lawful development certificate for proposed single-storey rear extension following demolition existing conservatory.

Cert of proposed lawful use or devt Canterbury
29 Sept 2026 Awaiting decision CA/26/01616

6 Milner Road Seasalter Kent CT5 4SH

Application for lawful development certificate for proposed single-storey rear extension following demolition of existing conservatory.

Cert of proposed lawful use or devt Canterbury
29 Sept 2026 Awaiting decision CA/26/01586

28 Downs Avenue Whitstable Kent CT5 1RP

Application for lawful development certificate for proposed siting of mobile home as ancillary to the main dwelling.

Cert of proposed lawful use or devt Canterbury
28 Sept 2026 Awaiting decision CA/26/01603

Podlinge Farm Hastingleigh Canterbury Kent TN25 5JF

Single-storey side extension.

Full Application Canterbury
24 Sept 2026 Awaiting decision CA/26/01595

Cherry Wood Clapham Hill Whitstable Kent CT5 3DQ

Retrospective application for single-storey side extension and first floor extension and detached single-storey outbuilding to the rear.

Full Application Canterbury
24 Sept 2026 Awaiting decision CA/26/01523

Land At Junction With May Street Sweechbridge Road Herne Bay Kent

Change of use to veterinary practice together with cladding to elevations and alterations to the windows.

Full Application Canterbury
24 Sept 2026 Withdrawn 7 Oct CA/26/01590

6 The Villas Island Road Hersden Kent CT3 4HA

Prior notification received on 24.09.2026 and expiring on 05.11.2026 for a single-storey rear extension with a depth of 5 metres, eaves height of 2.7 ...

Prior - larger home extension Canterbury
23 Sept 2026 Awaiting decision CA/26/01587

19 Borstal Hill Whitstable Kent CT5 4NA

Single-storey detached outbuilding for use as ancillary accommodation following demolition of attached garage.

Full Application Canterbury
22 Sept 2026 Awaiting decision CA/26/01580

87 Station Road Herne Bay Kent CT6 5QQ

Single-storey side and rear extension following demolition of existing garage and rear extension.

Full Application Canterbury
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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 Canterbury?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Canterbury. You can also narrow the alert to a postcode, street, or drawn area.

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