House extensions in Tunbridge Wells

Tunbridge Wells received 686 householder applications in the last 12 months - about 13 a week. Rear extensions and side extensions are the most common. Of the 555 decided so far, 520 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 165 applications
21 Oct 2026 Awaiting decision 26/02320/FULL

22 Farmcombe Road Royal Tunbridge Wells Kent TN2 5DF

Roof extensions and first floor side extension

Full Application Tunbridge Wells
21 Oct 2026 Awaiting decision 26/01984/FULL

Whisketts View The Down Lamberhurst Tunbridge Wells Kent TN3 8HD

Single storey front infill extension

Full Application Tunbridge Wells
20 Oct 2026 Awaiting decision 26/02268/LAWPRO

The Oak Tree Bishops Down Park Road Royal Tunbridge Wells Kent TN4 8XS

Lawful Development: Demolition and replacement of conservatory with extension

Lawful Development Cert. (Proposed) Tunbridge Wells
19 Oct 2026 Awaiting decision 26/02207/FULL

Kings Fish And Chips 169 Silverdale Road Royal Tunbridge Wells Kent TN4 9HT

(Part-retrospective) replacement first floor rear extension and external staircase

Full Application Tunbridge Wells
16 Oct 2026 Awaiting decision 26/02273/FULL

Holmewood House School Barrow Lane Langton Green Tunbridge Wells Kent TN3 0EB

Removal of covered area over existing bin store and fence, relocation of bin store and associated landscaping

Full Application Tunbridge Wells
16 Oct 2026 Awaiting decision 26/02270/FULL

Bream House 7 Hungershall Park Royal Tunbridge Wells Kent TN4 8NE

(Part retrospective) Demolition and replacement of single storey side extension, reinstatement of basement lightwells, construction of pool house, ass...

Full Application Tunbridge Wells
15 Oct 2026 Awaiting decision 26/02262/FULL

4 Poundfield Sandhurst Cranbrook Kent TN18 5LA

Demolition of garage. Roof extension with associated rear dormer windows and rooflights, and new single storey outbuilding

Full Application Tunbridge Wells
15 Oct 2026 Awaiting decision 26/02214/FULL

18 Clarendon Gardens Royal Tunbridge Wells Kent TN2 5LA

Car port

Full Application Tunbridge Wells
15 Oct 2026 Awaiting decision 26/02300/FULL

51 Wheatfield Way Cranbrook Kent TN17 3NB

Alterations to conservatory roof, and replacement outbuilding

Full Application Tunbridge Wells
14 Oct 2026 Awaiting decision 26/02267/FULL

Barnford House Furzefield Avenue Speldhurst Tunbridge Wells Kent TN3 0LD

First floor and single storey rear extensions, associated roof extension, alterations to fenestration/external materials

Full Application Tunbridge Wells
14 Oct 2026 Awaiting decision 26/02302/FULL

12 Shirley Gardens Rusthall Tunbridge Wells Kent TN4 8TG

Removal of porch and addition of single storey side extension

Full Application Tunbridge Wells
14 Oct 2026 Awaiting decision 26/02259/FULL

47 Summervale Road Royal Tunbridge Wells Kent TN4 8JL

Replacement single-storey side extension/first floor side window, addition of porch

Full Application Tunbridge Wells
14 Oct 2026 Awaiting decision 26/02056/FULL

25 Admiral Walk Royal Tunbridge Wells Kent TN2 3XY

Single storey first floor rear extension and rooflights

Full Application Tunbridge Wells
13 Oct 2026 Awaiting decision 26/02264/FULL

18 Fernhurst Crescent Southborough Tunbridge Wells Kent TN4 0TD

Window to dwelling and alterations to driveway

Full Application Tunbridge Wells
13 Oct 2026 Awaiting decision 26/02254/FULL

49 Stone Street Royal Tunbridge Wells Kent TN1 2QU

Single storey side and rear extensions

Full Application Tunbridge Wells
12 Oct 2026 Awaiting decision 26/01679/FULL

Park Gate Cottage School Hill Lamberhurst Tunbridge Wells Kent TN3 8DG

(Retrospective) Retaining walls and associated engineering works

Full Application Tunbridge Wells
12 Oct 2026 Awaiting decision 26/02244/FULL

13 Stephens Road Royal Tunbridge Wells Kent TN4 9JD

Single storey rear extension and fenestration alterations

Full Application Tunbridge Wells
9 Oct 2026 Awaiting decision 26/02232/FULL

52 Sherwood Road Royal Tunbridge Wells Kent TN2 3LQ

Single storey side extension

Full Application Tunbridge Wells
9 Oct 2026 Awaiting decision 26/02136/FULL

15 Lansdowne Road Royal Tunbridge Wells Kent TN1 2NG

Conversion of 3no residential flats into 1no detached dwelling, two storey rear extension and fenestration changes, extension of driveway

Full Application Tunbridge Wells
8 Oct 2026 Awaiting decision 26/02190/FULL

Redhouse Barn Goddards Green Road Benenden Cranbrook Kent TN17 4AR

Conversion of stable into annexe accommodation (Retrospective)

Full Application Tunbridge Wells
8 Oct 2026 Awaiting decision 26/02206/FULL

146 Green Way Royal Tunbridge Wells Kent TN2 3JW

Two storey side extension, single storey extension and associated alterations to garage

Full Application Tunbridge Wells
7 Oct 2026 Awaiting decision 26/02204/FULL

Easter Cottage Furnace Lane Lamberhurst Tunbridge Wells Kent TN3 8LD

Rear dormer, side rooflights & fenestration changes

Full Application Tunbridge Wells
7 Oct 2026 Awaiting decision 26/02205/LBC

Easter Cottage Furnace Lane Lamberhurst Tunbridge Wells Kent TN3 8LD

LBC: rear dormer, side rooflights & fenestration changes

Listed Building Consent Tunbridge Wells
7 Oct 2026 Awaiting decision 26/02212/FULL

West House Ferndale House 3 Ferndale Royal Tunbridge Wells Kent TN2 3RL

Single storey rear extension

Full Application Tunbridge Wells
6 Oct 2026 Awaiting decision 26/02192/LAWPRO

36 Dorking Road Royal Tunbridge Wells Kent TN1 2LP

Lawful Development (proposed) - side dormer window and removal of chimney

Lawful Development Cert. (Proposed) Tunbridge Wells
5 Oct 2026 Awaiting decision 26/02183/FULL

26 Herons Way Pembury Tunbridge Wells Kent TN2 4DN

Increase to garage roof height

Full Application Tunbridge Wells
5 Oct 2026 Awaiting decision 26/02178/FULL

Abrahams Franks Hollow Road Bidborough Tunbridge Wells Kent TN3 0UB

Construction of shelter and pool

Full Application Tunbridge Wells
2 Oct 2026 Awaiting decision 26/02155/LAWPRO

17 Mereworth Road Royal Tunbridge Wells Kent TN4 9PL

Lawful Development (proposed): hip to gable roof extension, rear dormer window, rooflight and rear extension

Lawful Development Cert. (Proposed) Tunbridge Wells
1 Oct 2026 Awaiting decision 26/02114/FULL

The Nurseries Pralls Lane Matfield Tonbridge Kent TN12 7DX

Single-storey extension to an existing residential outbuilding

Full Application Tunbridge Wells
1 Oct 2026 Awaiting decision 26/02154/FULL

Ferbies End Ferbies Speldhurst Tunbridge Wells Kent TN3 0NT

Erection of outbuilding

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02116/FULL

Galen Pennington Road Southborough Tunbridge Wells Kent TN4 0SS

Infill rear extension, replacement porch and new driveway gates

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02151/FULL

10 Princes Street Royal Tunbridge Wells Kent TN2 4SL

Single storey side & rear extensions, addition of rear dormer window, fenestration changes, porch replacement

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02147/FULL

11 Acer Avenue Royal Tunbridge Wells Kent TN2 5JQ

Single storey rear extensions and front fenestration alterations

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02144/FULL

The Forum The Common Royal Tunbridge Wells Kent TN4 8YU

Single storey rear extension

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02142/FULL

2 Manor Road Rusthall Tunbridge Wells Kent TN4 8UE

Single storey rear extension and rear dormer (part retrospective)

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/02102/FULL

Tilsden Farm Tilsden Lane Cranbrook Kent TN17 3PJ

Demolition of buildings, conversion of a building (B5) into 4 dwellings, erection of garage with associated garden land, parking and biodiversity enha...

Full Application Tunbridge Wells
30 Sept 2026 Awaiting decision 26/01813/FULL

13 Furnace Avenue Lamberhurst Tunbridge Wells Kent TN3 8LB

Increase to roof height at rear

Full Application Tunbridge Wells
29 Sept 2026 Awaiting decision 26/02113/FULL

Frame Farm Iden Green Road Iden Green Cranbrook Kent TN17 4EZ

Erection of garage

Full Application Tunbridge Wells
29 Sept 2026 Awaiting decision 26/02143/LAWPRO

15 Colebrook Road Southborough Tunbridge Wells Kent TN4 9BS

Lawful Development: Rear dormer window, front rooflights and removal of chimney stack

Lawful Development Cert. (Proposed) Tunbridge Wells
28 Sept 2026 Awaiting decision 26/02137/PNEXT

81 Allington Road Paddock Wood Tonbridge Kent TN12 6AP

Prior notification: single storey rear extension

Prior Notifcation - Extensions Tunbridge Wells
28 Sept 2026 Awaiting decision 26/02096/FULL

Little Tile Barn Farm Ayleswade Lane Biddenden Ashford Kent

Retention of mobile home and timber decking (retrospective)

Full Application Tunbridge Wells
24 Sept 2026 Awaiting decision 26/01836/FULL

1 High View Terrace Hartley Road Cranbrook Kent TN17 3QU

Demolition of conservatory and addition of single storey rear extension

Full Application Tunbridge Wells
24 Sept 2026 Awaiting decision 26/02100/FULL

The Rectory Bodiam Road Sandhurst Cranbrook Kent TN18 5LE

Annexe

Full Application Tunbridge Wells
24 Sept 2026 Awaiting decision 26/02107/FULL

Little Owl House Mount Pleasant Lamberhurst Tunbridge Wells Kent TN3 8LY

Part two and part single storey rear and side extension

Full Application Tunbridge Wells
23 Sept 2026 Awaiting decision 26/02111/LAWPRO

4 Oatfield Close Cranbrook Kent TN17 3NH

Lawful Development: demolition of conservatory and replacement rear extension

Lawful Development Cert. (Proposed) Tunbridge Wells
23 Sept 2026 Awaiting decision 26/02105/FULL

Golford Stables Tenterden Road Cranbrook Kent TN17 3PA

Single storey rear extension and changes to fenestration

Full Application Tunbridge Wells
22 Sept 2026 Awaiting decision 26/02050/FULL

Hill Place London Road Southborough Tunbridge Wells Kent TN4 0PY

Single storey side extension, replace rear windows with doors, addition of steps to rear, rooflights & removal of chimney

Full Application Tunbridge Wells
22 Sept 2026 Awaiting decision 26/02085/FULL

3 Stone Court Lane Pembury Tunbridge Wells Kent TN2 4DF

First floor side extension

Full Application Tunbridge Wells
21 Sept 2026 Awaiting decision 26/02059/FULL

82A St James Road Royal Tunbridge Wells Kent TN1 2HN

First floor terrace with obscure glass screens

Full Application Tunbridge Wells
21 Sept 2026 Awaiting decision 26/02053/LAWPRO

82A & 82B St James Road Royal Tunbridge Wells Kent TN1 2HN

Lawful Development (proposed): Conversion of 2 No flats into a single dwelling with extended dormer roof

Lawful Development Cert. (Proposed) Tunbridge Wells
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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 Tunbridge Wells?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Tunbridge Wells. You can also narrow the alert to a postcode, street, or drawn area.

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