House extensions in Dartford

Dartford received 465 householder applications in the last 12 months - about 9 a week. Rear extensions and garage works are the most common. Of the 367 decided so far, 276 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 130 applications
23 Oct 2026 Awaiting decision 26/01228/FUL

35 Dickens Avenue Dartford Kent DA1 5NL

Erection of a single storey detached outbuilding in the rear garden for use as a gym, with WC and store, ancillary to the residential use of 35 Dicken...

Full Application Dartford
23 Oct 2026 Awaiting decision 26/01226/FUL

4 Rectory Meadow Southfleet Kent DA13 9NY

Conversion of the existing integral garage into habitable accommodation, including replacement of the garage door with a window, erection of a front d...

Full Application Dartford
23 Oct 2026 Awaiting decision 26/01205/FUL

49 Squires Way Wilmington Kent DA2 7NN

Erection of a single storey rear extension and partial rear garage conversion with assosicated alterations, excavation works to rear to create patio

Full Application Dartford
21 Oct 2026 Awaiting decision 26/01219/FUL

205 Main Road Longfield Kent DA3 7PJ

Demolition of existing rear extension, and garage and erection of a single storey rear, side and front extension.

Full Application Dartford
21 Oct 2026 Awaiting decision 26/01216/FUL

4 Birch Place Horns Cross Greenhithe Kent DA9 9DP

Erection of a single storey side extension

Full Application Dartford
20 Oct 2026 Awaiting decision 26/01210/FUL

91 Shepherds Lane Dartford Kent DA1 2PA

Erection of a part single-storey and part two-storey side and rear extension, and erection of a front porch

Full Application Dartford
20 Oct 2026 Awaiting decision 26/01208/FUL

30 Maple Road Dartford Kent DA1 2QZ

Demolition of the existing rear porch and erection of a part single-storey, part two-storey rear extension, installation of a sun tunnel to the rear r...

Full Application Dartford
19 Oct 2026 Awaiting decision 26/01206/FUL

81 Wentworth Drive Dartford Kent DA1 3NQ

Erection of a single storey rear extension

Full Application Dartford
19 Oct 2026 Awaiting decision 26/01113/FUL

Moorcourt Gorsewood Road Longfield Kent DA3 7AD

Ancillary domestic development and landscape works comprising a garden gym, sauna and spa structure, outdoor kitchen and dining pavilion, timber pergo...

Full Application Dartford
16 Oct 2026 Awaiting decision 26/01198/FUL

123 The Brent Dartford Kent DA1 1YH

Erection of a single storey rear and side extension

Full Application Dartford
16 Oct 2026 Awaiting decision 26/01180/FUL

13 Marina Drive Dartford Kent DA1 1RD

Erection of a single storey rear extension

Full Application Dartford
15 Oct 2026 Awaiting decision 26/01188/FUL

13A Lowfield Street Dartford Kent DA1 1EN

Erection of a single-storey rear extension with associated external alterations including refurbished shop frontage.

Full Application Dartford
15 Oct 2026 Awaiting decision 26/01197/VCON

5 Coopers Drive Dartford Kent DA2 7WS

Erection of a single storey rear extension, new side window to living room and associated alterations (variation of condition 2 (approved drawings) of...

Variation of Condition Dartford
15 Oct 2026 Awaiting decision 26/01136/FUL

95 High Road Wilmington Kent DA2 7BW

Erection of single-storey front, side and rear extensions

Full Application Dartford
14 Oct 2026 Awaiting decision 26/01190/FUL

1 Stanley Cottages Green Street Green Road Darenth Kent DA2 7JE

Erection of a single-storey rear/side extension

Full Application Dartford
14 Oct 2026 Awaiting decision 26/01186/FUL

1 Barn End Drive Wilmington Kent DA2 7BX

Erection of a front porch, single storey rear extension, rear dormer to create a loft extension and roof lights to front roof slope.

Full Application Dartford
14 Oct 2026 Awaiting decision 26/01187/PDE

63 Valley View Greenhithe Kent DA9 9LU

Determination pursuant to Schedule 2, Part 1 (Class A.1 (g) of the Town and Country Planning (General Permitted Development) (England) Order 2015 as t...

General Permitted Dev - Extensions Dartford
14 Oct 2026 Awaiting decision 26/01183/FUL

The Nursery Green Street Green Road Darenth Kent DA2 8DP

Erection of an extension link between existing dwelling house and pool house.

Full Application Dartford
14 Oct 2026 Awaiting decision 26/01171/LDC

15 Essex Road Longfield Kent DA3 7QL

Application for a Lawful Development Certificate for proposed loft conversion comprising raising height of and alteration to roof from hip end to gabl...

Lawful Development Certificate Dartford
13 Oct 2026 Awaiting decision 26/01133/LDC

82 Highfield Road Dartford Kent DA1 2JJ

Application for a Lawful Development Certificate for proposed alterations and conversion of 2 two-bedroom flats into a single family dwelling

Lawful Development Certificate Dartford
13 Oct 2026 Awaiting decision 26/01178/FUL

1 Heathlands Rise Dartford Kent DA1 3HS

Erection of a single storey side extension

Full Application Dartford
12 Oct 2026 Awaiting decision 26/01142/FUL

204 Princes Road Dartford Kent DA1 3HR

Loft conversion including a rear dormer with a Juliet balcony; installation of one rear and two front rooflights; enlarged front porch; conversion of ...

Full Application Dartford
9 Oct 2026 Awaiting decision 26/01168/LDC

85 Chestnut Grove Wilmington Kent DA2 7PQ

Application for a Lawful Development Certificate for proposed loft conversion incorporating and rear dormer and roof lights in front roof slope

Lawful Development Certificate Dartford
9 Oct 2026 Awaiting decision 26/01164/FUL

Maple View 13 Bradbrook Drive Longfield Kent DA3 7BF

Erection of a single storey rear extension, replacement of ground floor side elevation window to a door and alterations to patio

Full Application Dartford
9 Oct 2026 Awaiting decision 26/01096/FUL

8 Fawkham Avenue Longfield Kent DA3 7HF

Raising height of roof for erection of a first floor extension and open porch

Full Application Dartford
8 Oct 2026 Awaiting decision 26/01126/FUL

Land Adjacent 37 Capel Place Wilmington Kent DA2 7PU

Use of land for storing vehicles for private use (non-business purposes), erection of a double garage, formation of hardstanding and access to highway

Full Application Dartford
8 Oct 2026 Awaiting decision 26/01147/VCON

65 Heath Lane Dartford Kent DA1 2QF

Demolition of existing detached garage and erection of a part two/part single storey side & rear extension with front porch (variation of condition 2 ...

Variation of Condition Dartford
7 Oct 2026 Awaiting decision 26/01146/FUL

5 Drudgeon Way Bean Kent DA2 8BJ

Erection of a single storey side extension

Full Application Dartford
7 Oct 2026 Awaiting decision 26/01072/LDC

17 Knockhall Chase Greenhithe Kent DA9 9EW

Application for a Lawful Development Certificate for proposed erection of a single-storey rear/side extension

Lawful Development Certificate Dartford
6 Oct 2026 Awaiting decision 26/01137/FUL

57 Knole Road Dartford Kent DA1 3JN

Erection of part first floor and part single storey side/rear extensions, single storey front extension to the garage, infill of existing porch, and a...

Full Application Dartford
5 Oct 2026 Awaiting decision 26/01103/FUL

52 Kent Road Dartford Kent DA1 2FJ

Change of use from gym to flat with rear and side infill extension with alterations to rear elevation windows and door

Full Application Dartford
2 Oct 2026 Awaiting decision 26/01139/FUL

21 Lawson Gardens Dartford Kent DA1 5BJ

Application for main entrance door to be moved to the front of the property

Full Application Dartford
2 Oct 2026 Awaiting decision 26/01134/FUL

45A Alfred Road Hawley Kent DA2 7SG

Erection of a single storey side/rear and front wraparound extension

Full Application Dartford
1 Oct 2026 Awaiting decision 26/01120/FUL

8 Clearwater Lane Dartford Kent DA1 1AP

Erection of a single storey rear extension, together with alterations to the existing garage to facilitate its conversion into additional recreational...

Full Application Dartford
1 Oct 2026 Awaiting decision 26/01129/FUL

7 Latham Close Darenth Kent DA2 6NS

Alterations to existing conservatory roof, with associated alterations to existing side elevations

Full Application Dartford
1 Oct 2026 Awaiting decision 26/00991/FUL

Phoenix Court Black Eagle Drive Northfleet Kent

Removal and replacement of existing combustible cladding and external wall elements with new non-combustible alternatives and associated works

Full Application Dartford
30 Sept 2026 Awaiting decision 26/01128/FUL

24A Hedge Place Road Greenhithe Kent DA9 9JZ

Erection of a timber framed shed

Full Application Dartford
30 Sept 2026 Awaiting decision 26/01063/FUL

139 Charles Street Stone Kent DA9 9AN

Demolition of the conservatory and erection of a single storey side extension

Full Application Dartford
29 Sept 2026 Awaiting decision 26/01038/FUL

15 Couzins Walk Dartford Kent DA1 5GD

Erection of a single-storey detached outbuilding in the rear garden, used as a home office and store incidental to the dwellinghouse, with solar panel...

Full Application Dartford
28 Sept 2026 Awaiting decision 26/01117/FUL

15 Norfield Road Wilmington Kent DA2 7NY

Erection of a single storey rear extension

Full Application Dartford
28 Sept 2026 Awaiting decision 26/01116/LDC

15 Norfield Road Wilmington Kent DA2 7NY

Application for a Lawful Development Certificate for proposed loft conversion

Lawful Development Certificate Dartford
28 Sept 2026 Awaiting decision 26/01078/LDC

49 Attlee Drive Dartford Kent DA1 5DN

Application for a Lawful Development Certificate for proposed erection of a single storey rear and side extension

Lawful Development Certificate Dartford
24 Sept 2026 Awaiting decision 26/01036/FUL

374 Phoenix Place Dartford Kent DA1 2XE

Conversion of an existing garage into a habitable room with associated alteration to front elevation

Full Application Dartford
24 Sept 2026 Awaiting decision 26/01041/FUL

Larmer Church Hill Wilmington Kent DA2 7EH

Erection of a new replacement fence

Full Application Dartford
23 Sept 2026 Awaiting decision 26/01105/VCON

40 Fernheath Way Wilmington Kent DA2 7PF

Erection of a single storey rear/side extension and loft conversion comprising alterations to roof to provide dormer window in rear elevation, window ...

Variation of Condition Dartford
22 Sept 2026 Awaiting decision 26/01091/FUL

19 Eagles Road Greenhithe Kent DA9 9QZ

Erection of a two storey rear/side extension and partial conversion of existing garage

Full Application Dartford
22 Sept 2026 Awaiting decision 26/01098/FUL

24 Clayton Croft Road Wilmington Kent DA2 7AU

Erection of a single-storey rear and side extension and a loft conversion with a rear dormer and roof light on front roof slope

Full Application Dartford
22 Sept 2026 Awaiting decision 26/01099/FUL

Badgers Rake Red Street Southfleet Kent DA13 9QJ

Loft conversion with rear dormer and roof windows, garage conversion, single storey rear extension and change in colour of windows and doors to white

Full Application Dartford
21 Sept 2026 Awaiting decision 26/01018/FUL

29 Oakes Crescent Dartford Kent DA1 5UF

Proposed loft conversion with rear dormer and roof lights on front roof slope

Full Application Dartford
21 Sept 2026 Awaiting decision 26/01048/FUL

20 Hallford Way Dartford Kent DA1 3AF

Application for loft conversion comprising alterations to roof from hip end to gable end for dormer window, Juliette balcony in rear roof slope and th...

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

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