House extensions in Sevenoaks

Sevenoaks received 876 householder applications in the last 12 months - about 17 a week. Rear extensions and garage works are the most common. Of the 693 decided so far, 588 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 223 applications
23 Oct 2026 Awaiting decision 26/02683/LDCPR

5 Carleton Place Horton Kirby Kent DA4 9DL

Removal of existing rear extension, proposed rear single story extension and providing front porch.

Lawful Development Certificate Proposed Sevenoaks
20 Oct 2026 Awaiting decision 26/02655/HOUSE

6 Colets Orchard Otford Kent TN14 5RA

Demolition of the existing detached garage. Part-one, part-two storey side extension with green roof. Associated internal and external alterations, in...

Householder Application Sevenoaks
20 Oct 2026 Awaiting decision 26/02759/ADJ

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.

Adjoining Authority Consultation Sevenoaks
19 Oct 2026 Awaiting decision 26/02586/LBCALT

Lion Hotel High Street Farningham Kent DA4 0DP

New sections of fixed seating. New Bar fitout and extension. New handrails to existing steps/ Replacement of 2 internal lobby doors. Replacment extern...

Listed Building Consent (Alt/Ext) Sevenoaks
19 Oct 2026 Awaiting decision 26/02106/HOUSE

1 Leonard Avenue Otford Kent TN14 5RB

Demolition of garage. Erection of a two-storey side extension, single-storey rear extension, single-storey front porch extension and associated intern...

Householder Application Sevenoaks
19 Oct 2026 Awaiting decision 26/02589/HOUSE

14 Millbro Hextable Kent BR8 7LF

Demolition of part of existing garage. Erection of a single storey rear and side extensions. Installation of rooflights. Creation of additional parkin...

Householder Application Sevenoaks
19 Oct 2026 Awaiting decision 26/02324/HOUSE

2 Cherry Trees Hartley Kent DA3 8DS

Removal of existing hedgerow and erection of new front boundary fencing. Installation of a boundary wall along the remaining front boundary.

Householder Application Sevenoaks
19 Oct 2026 Awaiting decision 26/02646/LDCPR

Hagersville Ash Road Hartley Kent DA3 8EX

Two side extensions and three outbuildings, with associated alterations to fenestration.

Lawful Development Certificate Proposed Sevenoaks
16 Oct 2026 Awaiting decision 26/02644/MMA

Pitfield Woodhouse White House Road Bayleys Hill Sevenoaks Weald Kent TN14 6HS

Amendment to 24/03157/FUL to alter the house for the inclusion of second floor plan including pitched rooflight windows. Alter the garage to include p...

Minor Material Amendment Sevenoaks
15 Oct 2026 Awaiting decision 26/02577/HOUSE

Woodstock Old Carriageway Chevening Kent TN13 2RL

Demolition of existing conservatory. Single-storey rear extension with roof lantern. Two-storey side extension. Roof extension and re-tiling to link r...

Householder Application Sevenoaks
15 Oct 2026 Awaiting decision 26/02614/HOUSE

Chestnut Lodge 27 Larkfield Road Bessels Green Kent TN13 2QH

Replacing garage with two storey side extension with rooflight.

Householder Application Sevenoaks
14 Oct 2026 Awaiting decision 26/02709/LDCPR

The Cottage Hartley Bottom Road Hartley Kent DA3 8LF

Siting of Mobile Single Unit Caravan Structure to Provide Ancillary Accommodation.

Lawful Development Certificate Proposed Sevenoaks
14 Oct 2026 Awaiting decision 26/02612/HOUSE

Oaklands Four Elms Road Edenbridge Kent TN8 6AG

Proposed driveway, landscaping, alterations to the existing vehicular access and detached garage/store and open car port.

Householder Application Sevenoaks
14 Oct 2026 Awaiting decision 26/02467/HOUSE

Lanterncroft Powder Mill Lane Leigh Kent TN11 8QE

Proposed dormer extension, replacement pitched roof coverings and rooflight alterations

Householder Application Sevenoaks
14 Oct 2026 Awaiting decision 26/02344/HOUSE

Romneys Highlands Hill Swanley Kent BR8 7NB

Demolition of existing single-storey rear structure. New single-storey rear extension and two-storey side extension, loft conversion with a rear dorme...

Householder Application Sevenoaks
14 Oct 2026 Awaiting decision 26/01389/HOUSE

138B Main Road Sundridge Kent TN14 6ET

Construct a hard standing of a permeable material (type-3 aggregate subbase) topped with a multi colour gravel that matches the surrounding area with ...

Householder Application Sevenoaks
13 Oct 2026 Awaiting decision 26/02471/LBCALT

The Croft Church Street Seal Kent TN15 0AR

Demolition of existing rear extension and erection of a new rear extension. Alterations to fenestration. Internal alterations to existing chimney stac...

Listed Building Consent (Alt/Ext) Sevenoaks
13 Oct 2026 Awaiting decision 26/02470/HOUSE

The Croft Church Street Seal Kent TN15 0AR

Demolition of existing rear extension and erection of a new rear extension. Alterations to fenestration. Internal alterations to existing chimney stac...

Householder Application Sevenoaks
13 Oct 2026 Awaiting decision 26/02590/LDCPR

14 Millbro Hextable Kent BR8 7LF

Loft conversion with dormer to rear elevation and insertion of 3no rooflights to front roof slope. Associated alterations to fenestration.

Lawful Development Certificate Proposed Sevenoaks
13 Oct 2026 Awaiting decision 26/02118/HOUSE

Birchcroft 6 Chipstead Park Close Sevenoaks Kent TN13 2SJ

Erection of a 2no brick walls and piers around property boundary

Householder Application Sevenoaks
13 Oct 2026 Awaiting decision 26/00974/HOUSE

Farningham Hill House Farningham Hill Road Farningham Kent DA4 0JR

Permission to regularise the introduction of a portico to the principal elevation of the main dwelling, alterations to fenestrations, boundary enclosu...

Householder Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02679/HOUSE

4 Hunters Way Edenbridge Kent TN8 6GB

Conversion of existing detached garage to gym - garden room, with associated alterations to fenestration.

Householder Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02600/HOUSE

37 Bradbourne Road Sevenoaks Kent TN13 3PZ

Demolition of the existing single storey side garage extension and replacement with a partial double storey and partial single storey side extension. ...

Householder Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02579/HOUSE

150 Seal Road Sevenoaks Kent TN14 5AA

Single storey flat roofed rear extension with roof lights and raised rear patio with steps and privacy screen. Infill doorway. Interal changes.

Householder Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02222/FUL

St Botolphs Church Chevening Road Chevening Kent TN14 6HG

Erection of a garden room with timber decking. Associated landscaping including relocation of two headstones and removal of two shrubs.

Full Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02439/FUL

Watling Tyres 65 High Street Swanley Kent BR8 8AF

Erection of single storey side extension to form new storage area

Full Application Sevenoaks
12 Oct 2026 Awaiting decision 26/02523/HOUSE

6 Springhead Road Kemsing Kent TN15 6QL

First floor rear extension

Householder Application Sevenoaks
9 Oct 2026 Awaiting decision 26/02486/FUL

Bridgeview Place Horton Road Horton Kirby Kent DA4 9BS

Erection of gates, brick walls, brick pillars and lighting, with associated hard and soft landscaping.

Full Application Sevenoaks
9 Oct 2026 Awaiting decision 26/02469/LBCALT

The Croft Church Street Seal Kent TN15 0AR

Removal of existing single-storey rear kitchen projection, and replacement with new single-storey rear extension. Alterations to rear fenestration and...

Listed Building Consent (Alt/Ext) Sevenoaks
9 Oct 2026 Awaiting decision 26/02468/HOUSE

The Croft Church Street Seal Kent TN15 0AR

Removal of existing single-storey rear kitchen projection, and replacement with new single-storey rear extension. Alterations to rear fenestration and...

Householder Application Sevenoaks
8 Oct 2026 Awaiting decision 26/02591/HOUSE

Braeside Knatts Valley Road Knatts Valley Kent TN15 6AE

Demolition of detached garage and outbuilding. Reconfiguration of dwelling roof with the introduction of roof lights. Proposed west facing balcony.

Householder Application Sevenoaks
8 Oct 2026 Awaiting decision 26/02596/HOUSE

Lillison Manor Drive Hartley Kent DA3 8AW

Erection of a two-storey front and a two-storey rear extension. Conversion of loft, creation of dormers and installation of Juliet balcony. Installati...

Householder Application Sevenoaks
8 Oct 2026 Awaiting decision 26/02561/HOUSE

34 Bayham Road Sevenoaks Kent TN13 3XE

Demolition of existing conservatory and replacement with new conservatory including the installation of a rooflight. Creation of a new window in front...

Householder Application Sevenoaks
7 Oct 2026 Awaiting decision 26/02520/LBCALT

7 The Square Riverhead Kent TN13 2AA

Repair and reinstatement works comprising removal of gypsum plaster and bonding coats, internal cement render, impermeable external paint coatings and...

Listed Building Consent (Alt/Ext) Sevenoaks
7 Oct 2026 Awaiting decision 26/02455/HOUSE

6 Delaware Cottages Hever Road Edenbridge Kent TN8 7LD

Demolition of existing single-storey rear extension. New single-storey rear extension with roof lights, with associated hard landscaping.

Householder Application Sevenoaks
6 Oct 2026 Awaiting decision 26/02558/LDCPR

Oaklands Four Elms Road Edenbridge Kent TN8 6AG

Roof alterations including the formation of hip-to-gable end extension and a rear dormer.

Lawful Development Certificate Proposed Sevenoaks
6 Oct 2026 Awaiting decision 26/02563/HOUSE

44 Quakers Hall Lane Sevenoaks Kent TN13 3TT

Roof extension, converting hipped roof to gable, second floor dormer extension to rear elevation and flush fitting roof windows to front elevation. Si...

Householder Application Sevenoaks
6 Oct 2026 Awaiting decision 26/02490/FUL

Field Opposite Mountross Farm Main Road Knockholt Kent TN14 7NT

Modifications to existing highway access and creation of access track.

Full Application Sevenoaks
5 Oct 2026 Awaiting decision 26/02620/HOUSE

20 Witches Lane Riverhead Kent TN13 2AX

Single storey front and rear extensions, removal of chimney and roof alterations. alteration to fenestration. Alteration to patio area.

Householder Application Sevenoaks
5 Oct 2026 Awaiting decision 26/02615/HOUSE

Crittleshaw Main Road Knockholt Kent TN14 7NT

Demolition of existing barn outbuilding and conservatory, erection of single storey side/rear extension, and introduction of two single storey outbuil...

Householder Application Sevenoaks
5 Oct 2026 Awaiting decision 26/02554/HOUSE

Fairview Bakers Avenue West Kingsdown Kent TN15 6HA

Proposed first floor extension and installation of rooflights.

Householder Application Sevenoaks
5 Oct 2026 Awaiting decision 26/02252/HOUSE

Robsacks Kennels Shoreham Road Eynsford Kent DA4 0HX

Demolition of existing garage, outbuildings, porch and meter housing. Erection of single-storey rear, side and front extensions, including new porch, ...

Householder Application Sevenoaks
2 Oct 2026 Awaiting decision 26/02603/LDCPR

Tall Trees Goodley Stock Road Crockham Hill Kent TN8 6TA

Erection of single storey rear extension.

Lawful Development Certificate Proposed Sevenoaks
1 Oct 2026 Awaiting decision 26/02394/FUL

Longwood Carters Hill Underriver Kent TN15 0SN

Erection of a greenhouse and a potting shed.

Full Application Sevenoaks
30 Sept 2026 Awaiting decision 26/02578/HOUSE

3 Hopfield Close Otford Kent TN14 5FB

Additional windows to side elevation at first and second floor levels.

Householder Application Sevenoaks
29 Sept 2026 Awaiting decision 26/02458/FUL

Quoin House 15 Park Lane Seal Kent TN15 0EE

The formation of an opening within the rear boundary wall to the south of the parking area, incorporating a concealed oak sliding door and steps provi...

Full Application Sevenoaks
28 Sept 2026 Awaiting decision 26/02555/LBCALT

4 Forge Square The Green Leigh Kent TN11 8QR

Proposed replacement rear window.

Listed Building Consent (Alt/Ext) Sevenoaks
28 Sept 2026 Awaiting decision 26/02407/HOUSE

Tillydene London Road West Kingsdown Kent TN15 6EP

Alterations and reconstruction of roof to roof to facilitate loft conversion. Construction of two front dormer windows and installation of four rear r...

Householder Application Sevenoaks
28 Sept 2026 Awaiting decision 26/02136/HOUSE

2 Madison Way Sevenoaks Kent TN13 3EF

Single storey front and side extension with internal alterations and entrance canopy.

Householder Application Sevenoaks
28 Sept 2026 Awaiting decision 26/01427/FUL

Pucknells Camp Hill Chiddingstone Causeway Kent TN11 8LE

Single Storey structure comprising of a self contained multifunctional room with a separate bathroom for the purposes of a two person holiday let.

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

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