House extensions in Richmond upon Thames

Richmond upon Thames received 1,604 householder applications in the last 12 months - about 31 a week. Rear extensions and dormers are the most common. Of the 1,298 decided so far, 1,114 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 368 applications
Yesterday Registered PA26/3676

43 Selkirk Road Twickenham

Demolition of the existing ground floor rear extension and erection of a single-storey rear extension (6m depth, 2.5m eaves height, 4m overall height)

General Permitted Development Extension Richmond Upon Thames
Yesterday Registered PA26/3651

7 Beverley Close Barnes London SW13 0EH

Demolition of existing garage, conservatory and porch canopy. Erection of side and rear extensions, new porch canopy, loft conversion, replacement win...

Householder Application Richmond Upon Thames
Yesterday Registered PA26/3650

17 Ellison Road Barnes London SW13 0AD

Works include to demolish the existing conservatory, a single-storey side extension to convert the existing shed into habitable space, and to form new...

Householder Application Richmond Upon Thames
Yesterday Registered PA26/3634

68, Westmoreland Road, London, SW13 9RY

Construction of a rear dormer extension and the installation of front pitched roof windows.

Section 192 Permitted Development Richmond Upon Thames
Yesterday Registered PA26/3628

15, Seymour Road, Hampton Hill, Hampton, TW12 1DD

Replace glass to conservatory roof to tiles

Householder Application Richmond Upon Thames
Yesterday Registered PA26/3620

34 Castelnau Gardens Barnes London SW13 8DU

Replacement windows front and rear

Full Application Richmond Upon Thames
Yesterday Registered PA26/3609

44 St Margarets Road Twickenham TW1 2LW

Construction of L-shaped rear dormer roof extension and raising the side hip to a gable.

Section 192 Permitted Development Richmond Upon Thames
Yesterday Registered PA26/3579

17, Sheen Park, Richmond, TW9 1UN

Demolition of existing ground floor rear lean-to and erection of new ground floor side-return extension. Demolition of existing outrigger dormer, rear...

Householder Application Richmond Upon Thames
23 Oct 2026 Registered PA26/3573

2 St Margarets Grove Twickenham TW1 1JG

Rear Ground Floor extension

Householder Application Richmond Upon Thames
23 Oct 2026 Registered PA26/3648

308, Staines Road, Twickenham, TW2 5AS

Erection of a front porch

Householder Application Richmond Upon Thames
23 Oct 2026 Registered PA26/3647

19, Cole Park Road, Twickenham, TW1 1HP

Erection of an outbuilding to provide ancillary residential accommodation following demolition of the existing outbuilding.

Householder Application Richmond Upon Thames
23 Oct 2026 Registered PA26/3613

9 Lawrence Road Hampton TW12 2RJ

Proposed 3m single storey extension, Loft conversion with rear dormer, front porch and outbuilding (ancillary use)

Section 192 Permitted Development Richmond Upon Thames
23 Oct 2026 Registered PA26/3569

1 Bristol Close Whitton Hounslow TW4 5JE

Erection of a two-storey side and rear infill extension, with associated roof alterations.

Householder Application Richmond Upon Thames
22 Oct 2026 Registered PA26/3612

39A Rocks Lane Barnes London SW13 0DA

A small single storey addition to an existing extension, with alterations to the rear elevation and glazing.

Full Application Richmond Upon Thames
22 Oct 2026 Registered PA26/3582

Merlewood, Hazel Lane, Petersham, Richmond, TW10 7AP

Erection of a single-storey detached outbuilding comprising a gym, office and bathroom (eaves height 2.5m, maximum height 3.8m), together with a part ...

Householder Application Richmond Upon Thames
22 Oct 2026 Registered PA26/3572

Wayside Old Farm Road Hampton TW12 3QT

Single storey rear extension and single storey side extension.

Section 192 Permitted Development Richmond Upon Thames
22 Oct 2026 Registered PA26/3454

9, The Green, Richmond, TW9 1PX

Proposed internal alterations comprising: bespoke cabinetry/joinery, wardrobes, shelving and panelling throughout; new kitchen, utility and pantry fit...

Listed Building Consent Richmond Upon Thames
21 Oct 2026 Registered PA26/3584

12, Morland Close, Hampton, TW12 3YX

Single storey front, side and rear extension.

Householder Application Richmond Upon Thames
21 Oct 2026 Registered PA26/3558

HOLY TRINITY C OF E SCHOOL, Holy Trinity C Of E School, Carrington Road, Richmond, TW10 5AA

Provision of new steel weld mesh fence adjacent to the North facing boundary an

Full Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3564

37 Ashburnham Road Ham Richmond TW10 7NG

Single-storey rear and side extension to the existing dwellinghouse at 37 Ashburnham Road, constructed in 2022, together with associated ground-floor ...

Section 191Cert Existing Lawful Use/Dev Richmond Upon Thames
20 Oct 2026 Registered PA26/3560

29 Trinity Church Road Barnes London SW13 8ET

Conversion of a garage into a habitable room, construction of a kitchen extension, and internal renovation and reconfiguration of the existing accommo...

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3557

7, Enmore Gardens, London, SW14 8RF

Erection of a single-storey ground floor link extension connecting the main dwellinghouse to the existing garage, incorporating a new side entrance do...

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3546

26, Strathearn Avenue, Twickenham, TW2 6JX

Single storey rear extension and conversion of garage to room

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3555

27, Elmfield Avenue, Teddington, TW11 8BU

Construction of a single storey rear extension

Section 192 Permitted Development Richmond Upon Thames
20 Oct 2026 Registered PA26/3523

87 Palewell Park East Sheen London SW14 8JJ

Replacement of an existing conservatory and storage unit to the side of the house.

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3466

468 Chertsey Road Twickenham TW2 6LR

Single Storey wrap-around extension with first floor side extension

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3445

13A Paved Court Richmond TW9 1LZ

Replacement of the existing front and rear dormers at 13a Paved Court. The existing dormers are flat-roofed timber structures that have decayed beyond...

Listed Building Consent Richmond Upon Thames
20 Oct 2026 Registered PA26/3218

219, London Road, Twickenham, TW1 1ES

Single storey rear extension with mono pitch roofs, conversion and adaptation of existing roof to create rear gable and installation of 5 skylights an...

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3208

34, Rocks Lane, London, SW13 0DB

Installation of an air conditioning unit, new external door opening to the side elevation and replacement rear rooflight including the removal of the ...

Householder Application Richmond Upon Thames
20 Oct 2026 Registered PA26/3003

20, Montpelier Row, Twickenham, TW1 2NQ

Introduction of a canopy above the front door at the ground floor front elevation; Replacement of existing Crittal window on second floor rear elevati...

Householder Application Richmond Upon Thames
19 Oct 2026 Registered PA26/3542

94 Thompson Avenue Richmond TW9 4JN

First floor rear elevation extension above an existing ground floor extension. Clerestory window to first floor side elevation wall of existing prope...

Householder Application Richmond Upon Thames
19 Oct 2026 Registered PA26/3511

47 Lowther Road Barnes London SW13 9NT

Alterations to the existing roof form, including removal of the extended hipped roof over the two-storey side addition, reinstatement of the original ...

Householder Application Richmond Upon Thames
19 Oct 2026 Registered PA26/3487

19 Cranmer Road Hampton Hill TW12 1DW

single-storey side and rear extensions

Section 192 Permitted Development Richmond Upon Thames
19 Oct 2026 Registered PA26/3297

12 Townshend Road Richmond TW9 1XH

Demolition and removal of two old sheds. Replacing them with a garden room and integrated storage area at the back garden for incidental use.

Householder Application Richmond Upon Thames
16 Oct 2026 Registered PA26/2552

36, The Jolly Gardener, Lower Richmond Road, London, SW14 7EX

Part change of use of the existing public house together with a part 3 storey extension to facilitate creation of two HMO units, comprising 9 and 7 be...

Full Application Richmond Upon Thames
16 Oct 2026 Registered PA26/3517

12, Strathearn Avenue, Twickenham, TW2 6JU

Proposed garage conversion with first floor over and relocated front wall

Householder Application Richmond Upon Thames
16 Oct 2026 Registered PA26/3507

72 Court Way Twickenham TW2 7SW

Proposed Rear Ancillary Garden Room and Storage

Section 192 Permitted Development Richmond Upon Thames
16 Oct 2026 Registered PA26/3502

52, Station Road, London, SW13 0LP

Erection of a first-floor rear extension with conservation-style rooflight, replacement first-floor windows to match approval PA25/3894, enlarged bed...

Householder Application Richmond Upon Thames
16 Oct 2026 Registered PA26/3499

52, Station Road, London, SW13 0LP

Erection of a ground-floor rear extension, associated demolition and minor internal alterations to improve the existing living accommodation.

Householder Application Richmond Upon Thames
16 Oct 2026 Registered PA26/3434

39, First Floor Flat, Morley Road, Twickenham, TW1 2HG

Replacement windows to front elevation.

Full Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3495

Park Gates and Coach House (The Cottage), The Green, Richmond, TW9 1QG

Alterations and extensions to Park Gates and the Coach House (The Cottage), including enlarged basement with rear lightwell, roof alterations to form ...

Full Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3492

7, Grimwood Road, Twickenham, TW1 1BY

Ground floor rear and side extension.

Householder Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3484

19, Alexander Hall, Cromwell Place, London, SW14 7HA

Proposed ground floor rear / side extension; proposed first floor rear / side extension; proposed first floor rear extension; proposed alterations t...

Householder Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3482

179 Argyle Avenue Whitton Hounslow TW3 2LP

Single storey rear extension at a maximum 6m depth and a maximum height of 4m with eaves at 2.265m

Householder Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3480

7 Spencer Gardens East Sheen London SW14 7AH

Demolition of an existing rear single-storey outhouse and erection of a single-storey rear extension and a roof extension with a dormer window.

Householder Application Richmond Upon Thames
15 Oct 2026 Registered PA26/3456

212 And 214 Hospital Bridge Road Twickenham TW2 6LF

Proposed shared vehicular access and driveways to two properties.

Full Application Richmond Upon Thames
15 Oct 2026 Approved 20 Oct PA26/3449

128A, The Coach House, Castelnau, London, SW13 9ET

Minor works to the roof to enable the installation of the PV panels and roofligh

Section 192 Permitted Development Richmond Upon Thames
15 Oct 2026 Registered PA26/3316

14, Strawberry Hill Road, Twickenham, TW1 4PT

Proposed rear infill extension, alterations to existing rear extension, swimming pool, garage conversion, internal alterations, roof alteration, insta...

Householder Application Richmond Upon Thames
14 Oct 2026 Registered PA26/3460

26, Sheen Gate Gardens, London, SW14 7NY

Replacement of the existing garage at its current location

Householder Application Richmond Upon Thames
14 Oct 2026 Registered PA26/3478

72 Bushy Park Road Teddington TW11 9DG

Re-roof with roof tiles to match existing. Remove existing render/pebble dash to existing front & rear elevation. Repoint existing brickwork. Insta...

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

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