50, Heath Gardens, Twickenham, TW1 4LZ Data via plota.co.uk

PA26/2736 - Section 192 Permitted Development Approved
Extensions & alterations

Proposal

Erection of a dormer over the rear projection, chimney removal and installation Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
6 Aug 2026
✓
Validated
10 Aug 2026
✓
Approved
9 Oct 2026

Approved on 9 Oct 2026 · Last checked 8 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 7

Air quality management area: Richmond AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
Registered park or garden 176 m away: Pope's Garden; National infrastructure project 518 m away: Expansion of Heathrow Airport (Third Runway), at pre-application; Inside the Richmond upon Thames built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square; Designated open space 18 m away; Town centre 24 m away: Twickenham.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 3

Last sold for £1,130,000 in July 2025. Other property, freehold.

More than one property is recorded at this address: HM Land Registry does not always give the flat or unit.

25 July 2025£1,130,000Recorded as a transfer outside a standard sale
2 December 2005£550,000Terraced house
30 March 2001£380,000Terraced house

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area126 m² (1,356 sq ft)
Energy ratingE (47 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2017, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

15 May 2026Approved

17 Heath Gardens Twickenham TW1 4LY

L shaped dormer and loft conversion. Two rooflights to front elevation.

PA26/1666

Nearby new applications

27 Oct 2026Pending

26, Wellesley Crescent, Twickenham, TW2 5RT

Existing Outbuilding Extension

PA26/3655
27 Oct 2026Pending

90 Bonser Road Twickenham TW1 4RG

Communal garden of no.90 T1 Oak x 1 (Quercus robur) This 13m mature oak tree ha...

PA26/3682
27 Oct 2026Pending

27, The Green, Twickenham, TW2 5TU

Rear Garden: Self-sown Fell in sections to ground level and grind out the st...

PA26/3536
27 Oct 2026Pending

34 Queens Road Twickenham TW1 4EX

T0686 T2 - Crown reduction by up to 3 meters back to historical pruning points. ...

PA26/3578
21 Oct 2026Approved

SRCC, St Richard Reynolds Catholic Secondary School, Clifden Road, Twickenham, TW1 4LT

5 DAY DANGEROUS TREE NOTICE - remove a declining Horse Chestnut

PA26/3524
19 Oct 2026Pending

Arches 12-14, Heath Road, Twickenham

Retrospective consent to establish temporary 10 year new Use Class B2 to three o...

PA25/3775

Important details

Council
Richmond upon Thames
Application type
Section 192 Permitted Development
Postcode
TW1 4LZ
Received
6 Aug 2026
Validated
10 Aug 2026
Ward
South Twickenham Ward [STT]
Case officer
Show
Target decision
1 Oct 2026
Decision date
9 Oct 2026
Applicant
Show
Agent
Nikos Petropoulos

How this decision compares

Decided in 60 days from validation, 12 days slower than Richmond upon Thames's median of 48 for extensions. Approved, as 86% of extensions here are.

78%decided within 8 weeks
86%approved
1,289decided in the last year

Plota live figures for extensions decided by Richmond upon Thames in the last twelve months, from validation. Richmond upon Thames decision record →

Consultation & key dates

Alt. reference
PP-15133318

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
34 Upper Grotto Road Twickenham TW1 4NF
Proposed single storey rear / side extension.
PA25/4267
2025 Approved
11 Radnor Gardens Twickenham TW1 4NA
Single storey side-infill and rear extension, rear dormer roof extension
PA25/2943
2025 Approved
36 Upper Grotto Road Twickenham TW1 4NF
Erection of a single storey rear/side extension.
PA25/0979
2024 Approved
50 Upper Grotto Road Twickenham TW1 4NF
Proposed roof conversion over the main and outrigger, the front slope of the roof will ha…
24/2067/PS192
2024 Approved
50 Upper Grotto Road Twickenham TW1 4NF
Proposed single storey ground floor rear and side extension following demolition of exist…
24/2066/HOT
2024 Approved
38 Upper Grotto Road Twickenham TW1 4NF
square off the existing mansard dormer , build a new dormer on the existing outrigger
24/2023/PS192
2023 Refused
33 Saville Road Twickenham TW1 4BQ
Demolition of existing and erection of a single storey rear extension, alterations to exi…
23/3340/HOT
2024 Approved
13 Radnor Gardens Twickenham TW1 4NA
Rear dormer roof extension. Rooflights to front elevation.
24/0236/PS192
2023 Approved
65 Heath Gardens Twickenham TW1 4LY
Outrigger dormer roof extension. New french windows with guard rail to main rear dormer…
23/2800/PS192
2023 Approved
72 Heath Gardens Twickenham TW1 4LZ
Demolition of existing single storey ground floor extension. Build new single storey grou…
23/1761/HOT
2023 Approved
65 Heath Gardens Twickenham TW1 4LY
Dormer roof extensions to rear outrigger. Rooflights to front elevation. Rooflight to fla…
23/1558/PS192
2023 Approved
1 Upper Grotto Road Twickenham TW1 4NG
Pitched roof over rear two storey outrigger
23/1097/HOT
2022 Approved
60 Radnor Road Twickenham TW1 4ND
proposing to install a minimal 1.5m internal extension to the existing single storey gabl…
22/2321/HOT
2022 Approved
60 Radnor Road Twickenham TW1 4ND
Hip to gable and rear dormer roof extensions. Rooflights to front elevation
22/2385/PS192
2022 Approved
14 And 15 Radnor Gardens Twickenham TW1 4NA
Joint application for the ground floor single storey rear infill extension for the proper…
22/0831/HOT
2022 Approved
9 Radnor Gardens Twickenham TW1 4NA
Porch to front of property
22/1045/PS192
2022 Approved
71 Radnor Road Twickenham TW1 4NB
Demolition of existing extension and new ground floor extension.
22/1116/PS192
2021 Approved
14 Radnor Gardens Twickenham TW1 4NA
Single storey rear infill extension
21/3846/HOT
2021 Approved
15 Radnor Gardens Twickenham TW1 4NA
Construction of a single storey rear/side infill extension and rear dormer, double pitche…
21/3497/HOT
2021 Approved
14 Radnor Gardens Twickenham TW1 4NA
A rear dormer loft conversion and 2 rooflights to the front slope.
21/3847/PS192
2016 Approved
79 Heath Gardens Twickenham TW1 4LY
Extension of existing loft conversion with outrigger dormer.
16/2321/PS192
2016 Approved
73 Heath Gardens Twickenham TW1 4LY
Proposed dormer roof extension to existing outrigger and installation of 1 No.flat roof w…
16/1282/PS192
2016 Refused
44 - 46 Upper Grotto Road Twickenham
Conversion of the roof space above the existing out rigger to form new bedrooms at Nos 44…
16/1557/HOT
2016 Refused
67 Radnor Road Twickenham TW1 4NB
Single storey side extension.
16/1601/HOT
2016 Approved
31 Upper Grotto Road Twickenham TW1 4NG
Single storey rear extension.
16/0275/HOT
Richmond upon Thames
Planning Authority Score
4.4/10
Below average
#182 of 296 councils
Relevant to this application:
Householder decisions

Richmond upon Thames ranks #130 out of 296 councils for householder decision speed. Richmond upon Thames is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Richmond upon Thames decision statistics
Based on MHCLG data, the year to March 2026
81%
Overall approval rate
Below avg (87%) #257 of 296
82%
Householder approved
Below avg (90%) #268 of 296
69%
Decided in 8 weeks
Above avg (63%) #130 of 296
35%
Extended time limit
Below avg (41%) #104 of 296
68%
Minor dwellings approved
181 decided (1-9 homes)
100%
Major dwellings approved
3 decided (10+ homes)
47%
Change of use approved
17 decided
1,888
Total decisions
358 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.