1, Michelham Gardens, Twickenham, TW1 4SD Data via plota.co.uk

PA26/1264 - Householder Application Approved
Extensions & alterations

Proposal

Conversion of existing garage to habitable room and associated alterations. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
17 Apr 2026
✓
Approved
10 Jun 2026

Approved on 10 Jun 2026 · Delegated Decision · Last checked 12 Jul 2026

Documents

View the documents on the council's website ↗

Site constraints 8

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
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 ↗
Registered park or garden 45 m away: Strawberry Hill
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Local nature reserve 223 m away: Ham Lands
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Richmond upon Thames built-up area; Metropolitan Open Land 45 m away; Priority habitat 45 m away: Deciduous woodland.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.

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Other new applications on this street

15 Jul 2026Pending

17 Michelham Gardens Twickenham TW1 4SD

Demolition of an existing conservatory. Erection of a single-storey rear extensi...

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30 Jul 2026Approved

22, Michelham Gardens, Twickenham, TW1 4SB

Proposed loft dormer conversion, internal alterations and addition of Velux to f

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PA26/2984
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9, Popes Grove, Twickenham, TW2 5TA

Front Garden (Centre) T1: Silver birch tree o Reduce height by approximately

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28 Aug 2026Pending

23 Upper Grotto Road Twickenham TW1 4NG

Ground floor rear and side extension, internal alterations and minor alterations...

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34 Abbottsmede Close Twickenham TW1 4RL

Proposal is for 3m rear extension with pitched roof and internal changes.

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Important details

Council
Richmond upon Thames
Application type
Householder Application
Postcode
TW1 4SD
Received
17 Apr 2026
Validated
17 Apr 2026
Ward
South Twickenham Ward [STT]
Case officer
Show
Target decision
12 Jun 2026
Decision
Granted Permission
Decision date
10 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Bischell Construction Ltd.

How this decision compares

Decided in 54 days from validation, 6 days slower than Richmond upon Thames's median of 48 for extensions. Approved, as 87% of extensions here are.

79%decided within 8 weeks
87%approved
1,012decided 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-14848923
Statutory expiry
11 May 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
17 Michelham Gardens Twickenham TW1 4SD
Demolition of existing rear conservatory and erection of a single-storey rear extension…
PA25/4449
2025 Decided
49C, Strawberry Vale, Twickenham, TW1 4RX
Outside No.49C T1-Evergreen Holm Oak(Quercus ilex)-double stem at low crown break -reduce…
PA25/4538
2025 Withdrawn
17 Strawberry Vale Twickenham TW1 4RX
Replacement ground floor extension, replacement windows and a replacement front porch (de…
PA25/4293
2025 Decided
49B Strawberry Vale Twickenham TW1 4RX
Amended spec with new dimensions T2-Evergreen Holm Oak(Quercus ilex)-double stem at low c…
PA25/3674
2025 Approved
37 Strawberry Vale Twickenham TW1 4RX
Roof windows to be inserted into existing roof planes
PA25/3450
2025 Approved
32 Strawberry Vale Twickenham TW1 4RU
Removal and replacement of the existing garage door with a window to match the existing…
PA25/2686
2025 Withdrawn
17 Strawberry Vale Twickenham TW1 4RX
Replacement ground floor extension which matches the existing building line. Replacement…
PA25/2345
2024 Approved
20 Strawberry Vale Twickenham TW1 4RU
Conversion of garage into habitable space and proposed first floor extension above existi…
24/1552/HOT
2024 Approved
39 Strawberry Vale Twickenham TW1 4RX
Replace existing shed structure with new temporary structure astride existing raised pave…
24/0692/PS192
2024 Approved
49 Strawberry Vale Twickenham TW1 4RX
Front by Drive Holm Oak - Evergreen Oak (Quercus ilex) Crown Lift to provide 5m clearance…
24/T0148/TPO
2023 Withdrawn
41 Strawberry Vale Twickenham TW1 4RX
Erection of a new shed to replace existing shed.
23/3287/PS192
2023 Approved
39 Strawberry Vale Twickenham TW1 4RX
The improvement and maintenance of a section of inland waterway
23/1498/PS192
2022 Refused
41 Strawberry Vale Twickenham TW1 4RX
Erection of a single storey detached outbuilding to the rear of the property.
22/2760/HOT
2022 Refused
39 Strawberry Vale Twickenham TW1 4RX
The existing windows are currently white PVC to be replaced with black-grey wood (Accoya)…
22/2955/PS192
2022 Refused
18 Strawberry Vale Twickenham TW1 4RU
Amendments to existing ground floor rear extension and loft conversion
22/2894/PS192
2019 Approved
39 Strawberry Vale Twickenham TW1 4RX
loft conversion with rear dormer and balcony, extending the previously approved side exte…
19/3858/HOT
2022 Approved
31 Strawberry Vale Twickenham TW1 4RX
Ground floor rear extension, ground and first floor side extensions, rear dormer and roof…
22/1623/HOT
2022 Refused
31 Strawberry Vale Twickenham TW1 4RX
Ground floor rear extension, ground and first floor side extension, ground floor front po…
22/0620/HOT
2022 Approved
47 Strawberry Vale Twickenham TW1 4RX
The improvement and maintenance of a section of inland waterway
22/0175/PS192
2021 Approved
25 Strawberry Vale Twickenham TW1 4RX
Details pursuant to conditions U0093005 (Hard/Soft Landscaping works), U0093006 (External…
20/0300/DD01
2017 Approved
47 Strawberry Vale Twickenham TW1 4RX
T1 - Tulip - Crown Reduction by 1.5m T2 - Walnut - Crown Reduction by 1.5m
17/T0796/TPO
2017 Approved
43 Strawberry Vale Twickenham TW1 4RX
Details pursuant to conditions U20129 - Construction Method Statement, BD12 -material, U2…
16/2502/DD01
2017 Approved
17 Michelham Gardens Twickenham TW1 4SD
Hip to gable and rear dormer roof extensions; 2 side dormers and one rooflight to the fro…
17/1795/PS192
2016 Approved
43 Strawberry Vale Twickenham TW1 4RX
Demolition of existing dwelling and erection of a new six bedroom house with basement.
16/2502/FUL
2016 Approved
39 And 41 Strawberry Vale Twickenham
Proposed first floor rear extensions, roof extension to No.41 Strawberry Vale and rear do…
16/1333/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