House extensions in Richmond upon Thames

Richmond upon Thames received 1,376 householder applications in the last 12 months - about 26 a week. Rear extensions and dormers are the most common. Of the 1,043 decided so far, 906 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 442 applications
Yesterday Registered PA26/3114

85, Winchendon Road, Teddington, TW11 0SU

Single storey rear extension

Householder Application Richmond Upon Thames
Yesterday Registered PA26/3091

83 White Hart Lane Barnes London SW13 0PW

New Crittall rear glazed doors/windows, a new enlarged rooflight and the replacement bathroom window.

Section 192 Permitted Development Richmond Upon Thames
Yesterday Registered PA26/3073

131, Latchmere Lane, Kingston Upon Thames, KT2 5NX

Installation of a wall-mounted electric vehicle (EV) charging point, 7kW Single-Phase Smart EV Charger (e.g., myenergi Zappi 7kW) on the private front...

Householder Application Richmond Upon Thames
Yesterday Registered PA26/3026

20 Glasbrook Avenue Twickenham TW2 6AH

A rear loft extension

Householder Application Richmond Upon Thames
Yesterday Registered PA26/2953

183 Waverley Avenue Twickenham TW2 6DJ

Front extension to ground floor, wraparound side and rear extension, front dormer extension and covered patio with associated internal works

Householder Application Richmond Upon Thames
2 days ago Registered PA26/3100

18 Lyndhurst Avenue Twickenham TW2 6BY

hip to gable loft conversion with rear dormer and three roof lights to the front eleation and single storey side and rear extension

Section 192 Permitted Development Richmond Upon Thames
2 days ago Registered PA26/3102

144 Broad Lane Hampton Richmond Upon Thames TW12 3BW

SINGLE STOREY REAR EXTENSION (5m depth, 3m eaves height, 3.2m overall height)

General Permitted Development Extension Richmond Upon Thames
2 days ago Registered PA26/2513

Nos. 5, 7, 9 And 11 Sandy Lane Hampton Wick

Proposed reconfiguration of existing flats; Proposed alterations of existing areas of flat lead roofs to projecting two storey bathroom wings to pitch...

Full Application Richmond Upon Thames
2 days ago Registered PA26/1820

34, Bolton Gardens, Teddington, Richmond upon Thames, TW11 9AY

Construction of a basement level floor & lightwell.

Householder Application Richmond Upon Thames
2 days ago Registered PA26/0617

79 Waldegrave Road Teddington TW11 8LA

Erection of New Single Storey Extension and associated masonry boundary walls adjacent to no. 77 and 81, formation of 2no. dormer roof extensions to ...

Householder Application Richmond Upon Thames
8 Sept 2026 Registered PA26/2997

10, Ferry Road, Teddington, TW11 9NN

Replace existing garden shed with a new garden room.

Section 192 Permitted Development Richmond Upon Thames
8 Sept 2026 Registered PA26/3095

4 Camac Road Twickenham

L shaped dormer loft conversion, one new bathroom on the first floor, removal of chimney breasts and a wall at ground floor (currently dividing livin...

Section 192 Permitted Development Richmond Upon Thames
8 Sept 2026 Registered PA26/3053

57, Blandford Road, Teddington, TW11 0LG

Single-storey side and rear wraparound extension, first floor side extension

Householder Application Richmond Upon Thames
8 Sept 2026 Registered PA26/3060

William Hunt Mansions, 4 Somerville Avenue, London

Replacement of Balcony Railings at Penthouse Level

Listed Building Consent Richmond Upon Thames
8 Sept 2026 Registered PA26/3052

William Hunt Mansions, 4 Somerville Avenue, London

Replacement of Balcony Railings at Penthouse Level

Full Application Richmond Upon Thames
8 Sept 2026 Registered PA26/3048

1 Broom Water Teddington TW11 9QJ

Construction of a single-storey ground floor rear extension, first floor side extension above the existing garage, new entrance porch, and replacement...

Householder Application Richmond Upon Thames
8 Sept 2026 Registered PA26/3012

74A Glentham Road Barnes London SW13 9JJ

Retention and completion of a freestanding timber pergola within the rear garden.

Full Application Richmond Upon Thames
8 Sept 2026 Registered PA26/3008

32 Heathfield North Twickenham TW2 7QW

The construction of a single storey contemporary garden building with A/C to be used as a home office.

Householder Application Richmond Upon Thames
8 Sept 2026 Registered PA26/2706

4-6 Ground floor, Kingsway Building, London Road, Twickenham, TW1 3RR

Relocation of rear fire exit door from the side to the rear.

Full Application Richmond Upon Thames
8 Sept 2026 Registered PA26/1421

14, Strafford Road, Twickenham, TW1 3AE

Proposed basement and ground floor side and rear extension

Householder Application Richmond Upon Thames
8 Sept 2026 Registered PA26/1246

72 Mereway Road Twickenham TW2 6RG

Part single storey rear and side infill extension, and part double storey extension.

Householder Application Richmond Upon Thames
7 Sept 2026 Registered PA26/3077

64 First Avenue Mortlake London SW14 8SR

Outrigger roof extension, new rooflight to existing rear dormer, and replacement rooflights to front roof slope.

Section 192 Permitted Development Richmond Upon Thames
7 Sept 2026 Registered PA26/2760

101, Strawberry House, Church Road, London, SW13 9HL

Comprehensive refurbishment of the existing building, including internal and external reconfiguration and restoration works; demolition of existing at...

Non Material Amendments Richmond Upon Thames
7 Sept 2026 Registered PA26/3078

64 First Avenue Mortlake London SW14 8SR

The demolition of the existing ground floor rear extension, construction of replacement ground floor rear extension and replacement windows to the rea...

Householder Application Richmond Upon Thames
7 Sept 2026 Registered PA26/3069

21, Flat 1b, Cardigan Road, Richmond, TW10 6BJ

Ground floor flat rear extension including the demolition of existing extension/s and erection of new single storey rear extension and associated inte...

Full Application Richmond Upon Thames
7 Sept 2026 Registered PA26/3068

27 Ranelagh Avenue Barnes London SW13 0BL

Single storey side return with a sloping rooflight. Incl replacement windows throughout.

Householder Application Richmond Upon Thames
7 Sept 2026 Registered PA26/3067

27 Ranelagh Avenue Barnes London SW13 0BL

Rear mansard roof extension.

Householder Application Richmond Upon Thames
5 Sept 2026 Registered PA26/3057

23, Manderlea, The Avenue, Hampton, TW12 3RN

Single storey rear extension, single storey side extension, and the installation of an air conditioning unit

Householder Application Richmond Upon Thames
5 Sept 2026 Registered PA26/3061

30 First Avenue Mortlake London SW14 8SR

Removal of SVP at L2 to the rear (Class G) - Removal of partial chimney capping on L2 roof to rear (Class G) - Addition of flat roof parapet to exis...

Section 192 Permitted Development Richmond Upon Thames
5 Sept 2026 Registered PA26/3051

21 and 23 Winchester Road, Twickenham

Raising of the ridge and eaves, replacement of front and rear roof slopes and the erection of rear dormer extensions to the rear roof slope and outrig...

Full Application Richmond Upon Thames
5 Sept 2026 Registered PA26/3005

Stokes House, Ham Street, Ham, Richmond, TW10 7HR

External alterations to the existing dwelling, modern extension and outbuilding, including re-rendering and painting; installation of a green roof to ...

Householder Application Richmond Upon Thames
5 Sept 2026 Registered PA26/2991

53, Ortigia House, Sheen Road, Richmond, Richmond upon Thames, TW9 1YH

Formation of entrance gates and single-storey shed (retrospective).

Householder Application Richmond Upon Thames
4 Sept 2026 Registered PA26/2998

26, Laurel Avenue, Twickenham, TW1 4JA

The proposed works are a single story extension with a pitched roof. All exterior finishing materials i.e. Doors, windows, roof and walls will be like...

Section 192 Permitted Development Richmond Upon Thames
4 Sept 2026 Registered PA26/2850

80A, Mount Ararat Road, Richmond, TW10 6PN

Replace existing garden shed at the rear of garden with a single-storey garden office for incidental use.

Full Application Richmond Upon Thames
3 Sept 2026 Refused PA26/1242

12 Townshend Road Richmond TW9 1XH

Replace two old sheds at the back of the garden with a garden room and integrate

Section 192 Permitted Development Richmond Upon Thames
3 Sept 2026 Pending PA26/2863

26 Mount Ararat Road Richmond

New roof slates, demolition of rear chimney stack, enlargement of side elevatio

Householder Application Richmond Upon Thames
3 Sept 2026 Registered PA26/3045

253, Staines Road, Twickenham, TW2 5AY

Demolition of garage and erection of outbuilding

Section 192 Permitted Development Richmond Upon Thames
3 Sept 2026 Registered PA26/3029

179 Argyle Avenue Whitton Hounslow TW3 2LP

Loft dormer following hip to gable roof extension including front roof lights

Section 192 Permitted Development Richmond Upon Thames
3 Sept 2026 Registered PA26/2798

137, Richmond Road, Twickenham, TW1 3AT

Part retrospective application for the retention of the existing summerhouse within the garden and the erection of a new open metal trellis above the ...

Householder Application Richmond Upon Thames
2 Sept 2026 Pending PA26/3058

253, Staines Road, Twickenham, TW2 5AY

Prior approval for larger household extension (6m depth, 2.3m eaves height, 4m o

General Permitted Development Extension Richmond Upon Thames
2 Sept 2026 Approved PA26/3016

142 Ennerdale Road Richmond TW9 2DG

Replacement and alteration of existing windows and doors, together with the demo

Section 192 Permitted Development Richmond Upon Thames
2 Sept 2026 Recommendation under review PA26/2957

76, Mount Ararat Road, Richmond, TW10 6PN

G1 Bay Group: Lateral reduction back to boundary and height reduction by 3m to maximise light penetration to understory planting.

Works to Tree/s in Conservation Area Richmond Upon Thames
2 Sept 2026 Registered PA26/3049

St Ann's Church, Kingston Hill, Kingston upon Thames

Erection of single storey rear infill extensions to the church hall with internal alterations. Alterations to roof. (RB Kingston ref 26/01632/FUL).

Consultation Other Richmond Upon Thames
2 Sept 2026 Registered PA26/3047

2, Hurst Road, East Molesey, KT8 9AF

Roof extension to provide rooms in the roofspace including side rooflights. (Elmbridge ref 2026/1939).

Consultation Other Richmond Upon Thames
2 Sept 2026 Registered PA26/3004

THE HARRODIAN SCHOOL, Harrodian School, Lonsdale Road, London, SW13 9QN

Alteration of the existing boundary fence at The Harrodian School to install a timber pedestrian gate.

Section 192 Permitted Development Richmond Upon Thames
2 Sept 2026 Registered PA26/2860

9 Beverley Road, Barnes.

Proposed single-storey side and rear extension.

Householder Application Richmond Upon Thames
2 Sept 2026 Registered PA26/2686

Twickenham Ambulance Station, South Road, Twickenham, Richmond upon Thames, TW2 5NT

Part front & rear extension, raised roof and change of use from former Ambulance centre (sui-generis) to mixed use as car wash (sui-generis) and B2 u...

Full Application Richmond Upon Thames
2 Sept 2026 Registered PA26/2463

7, Pembroke Villas, The Green, Richmond, TW9 1QF

Replacement of two flank timber casement windows to the lower ground floor. Removal of stainless-steel gas flue on flank wall, replaced with new flues...

Householder Application Richmond Upon Thames
1 Sept 2026 Registered PA26/3019

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

General Permitted Development Extension Richmond Upon Thames
1 Sept 2026 Registered PA26/2999

14, Gloucester Road, Teddington, TW11 0NU

Single storey rear and side infill extension

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.