56 Silverston Way, Stanmore, Harrow, HA7 4HR Data via plota.co.uk

PL/1815/26 - Prior Notification - Larger Home Extension Approved
Extensions & alterations

Proposal

Single storey rear extension: 6.00 metres deep, 3.60 metres maximum height and 3.00 metres high to the eaves Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
6 Jul 2026
✓
Approved
13 Aug 2026

Approved on 13 Aug 2026 · Delegated decision · Last checked 30 Sept 2026

Documents 3

Plans & drawings 1

PDF Proposed & existing floor plans & elevations Plans · 6 Jul 2026 View ↗

Application forms 1

PDF Application Form Redacted Application Form (Redacted) · 6 Jul 2026 View ↗

Other documents 1

PDF DN - PRICOM and PRIEXT PA NREQ DN - PRICOM and PRIEXT PA NREQ · 13 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 5

Air quality management area: Harrow 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 ↗
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
Registered park or garden 181 m away: Canons Park; Inside the Harrow built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 17 October 2026. Historic England, the Environment Agency, Natural England, 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.

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Other new applications on this street

21 Oct 2026Pending

3 Silverston Way, Stanmore, Harrow, HA7 4HS

Single storey rear extension: 6.00 metres deep, 3.20 metres maximum height and 3...

PL/2786/26

Nearby new applications

21 Oct 2026Pending

3 Silverston Way, Stanmore, Harrow, HA7 4HS

Single storey rear extension: 6.00 metres deep, 3.20 metres maximum height and 3...

PL/2786/26
13 Oct 2026Pending

178 Marsh Lane, Stanmore, Harrow, HA7 2SL

Alterations to roof to form end gable and rear dormer; installation of two roof ...

PL/2586/26
13 Oct 2026Pending

29 The Ridgeway, Stanmore, Harrow, HA7 4BE

Variation of condition 2 (Approve plan) attached to planning permission PL/2612/...

PL/2700/26
6 Oct 2026Pending

12 Charlbury Avenue, Stanmore, Harrow, HA7 4TS

Single storey side to rear extension

PL/2642/26
5 Oct 2026Pending

Eastern ELEC Sub Station, Gordon, Avenue, Harrow, , Stanmore, HA7 2RN

Electronic Communications Notification: The installation of 3 no. replacement an...

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5 Oct 2026Pending

STANMORE COLLEGE Elm Park, Harrow, Stanmore, HA7 4BQ

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Important details

Council
Harrow
Application type
Prior Notification - Larger Home Extension
Postcode
HA7 4HR
Received
6 Jul 2026
Validated
6 Jul 2026
Ward
Belmont
Case officer
Show
Target decision
17 Aug 2026
Decision
Prior Approval not required
Decision date
13 Aug 2026
Decision level
Delegated decision
Applicant
Show
Agent
Mistry Design

How this decision compares

Decided in 38 days from validation, 18 days faster than Harrow's median of 56 for extensions. Approved, as 79% of extensions here are.

80%decided within 8 weeks
79%approved
1,936decided in the last year

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

Consultation & key dates

Statutory expiry
17 Aug 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
70 Silverston Way, Stanmore, Harrow, HA7 4HR
Front porch; single and two storey side to rear extension; single storey rear extension…
PL/2202/25
2025 Approved
70 Silverston Way, Stanmore, Harrow, HA7 4HR
Single storey rear extension: 6.30 metres deep, 3.25 metres maximum height and 3.00 metre…
PL/1415/25
2025 Approved
60 Silverston Way, Stanmore, Harrow, HA7 4HR
Alterations to porch roof, Replace window with garage door in front elevation, Single sto…
PL/0657/25
2024 Withdrawn
60 Silverston Way, Stanmore, Harrow, HA7 4HR
Replacement roof over front porch, Replacement of window with garage door in front elevat…
PL/3303/24
2024 Approved
24 Silverston Way, Stanmore, Harrow, HA7 4HR
Single storey front extension incorporating porch, Single storey side to rear extension…
PL/2963/24
2024 Refused
15 Silverston Way, Stanmore, Harrow, HA7 4HS
First floor side extension; external alterations
PL/2083/24
2024 Approved
15 Silverston Way, Stanmore, Harrow, HA7 4HS
Front porch; single storey side to rear extension; external alterations (demolition of de…
PL/1205/24
2024 Approved
15 Silverston Way, Stanmore, Harrow, HA7 4HS
Single storey rear extension
PL/0245/24
2023 Refused
15 Silverston Way, Stanmore, Harrow, HA7 4HS
Two single storey rear extensions: 4.00 metres deep, 3.45 metres maximum height and 2.45…
PL/0684/23
2023 Approved
6 Silverston Way, Stanmore, Harrow, HA7 4HR
Single storey front extension incorporating porch; part conversion of garage to habitable…
P/2348/23
2023 Approved
35 Silverston Way, Stanmore, Harrow, HA7 4HS
Excavation to create basement level; single storey front extension incorporating porch; s…
P/2297/23
2023 Approved
35 Silverston Way, Stanmore, Harrow, HA7 4HS
Single Storey Rear Extension: 5.30 metres deep, 3.20 metres maximum height, 3.00 metres h…
P/1468/23/PRIOR
2023 Approved
50 Silverston Way, Stanmore, Harrow, HA7 4HR
Front porch; single and two storey side extension; single and two storey rear extension…
P/0871/23
2023 Approved
32 Silverston Way, Stanmore, Harrow, HA7 4HR
Single Storey Rear Extension: 4.00 metres deep, 3.70 metres maximum height, 2.63 metres h…
P/0767/23/PRIOR
2021 Approved
32 Silverston Way, Stanmore, Harrow, HA7 4HR
Single Storey Rear Extension: 4.00 metres deep, 4.00 metres maximum height, 2.80 metres h…
P/2849/21/PRIOR
2021 Approved
68 Silverston Way, Stanmore, Harrow, HA7 4HR
First floor side extension; two storey side to rear extension; single storey rear extensi…
P/0907/21
2020 Approved
41 Silverston Way, Stanmore, Harrow, HA7 4HS
Single storey front extension incorporating front porch, side to rear extension; external…
P/2090/20
2020 Approved
56a Silverston Way, Stanmore, Harrow, HA7 4HR
Single storey front extension; first floor side to rear extension; single storey rear ext…
P/2043/20
2019 Approved
30 Silverston Way, Stanmore, Harrow, HA7 4HR
Single storey side to rear extension
P/3713/19
2019 Approved
5 Silverston Way, Stanmore, HA7 4HS
Reduction to width of rear dormer
P/0668/19/5582
2018 Approved
12 Silverston Way, Stanmore, HA7 4HR
Single storey side extension; single storey rear extension; conversion of garage to room…
P/1974/18
2017 Approved
5 Silverston Way, Stanmore, HA7 4HS
Single and two storey rear extensions; rear dormer to create habitable roofspace; rooflig…
P/5569/16/5127
2016 Approved
5 Silverston Way, Stanmore, HA7 4HS
Single and two storey rear extensions; rear dormer to create habitable roofspace; rooflig…
P/5569/16
2016 Approved
31 Silverston Way, Stanmore, HA7 4HS
Single storey front extension incorporating front porch first floor side extension and tw…
P/4589/16
2016 Approved
31 Silverston Way, Stanmore, HA7 4HS
Single storey front extension incorporating front porch two storey side to rear extension…
P/3512/16
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Householder decisions

Harrow ranks #115 out of 296 councils for householder decision speed. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

One of the strictest councils
only 83% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Harrow decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #273 of 296
83%
Householder approved
Below avg (90%) #261 of 296
71%
Decided in 8 weeks
Above avg (63%) #115 of 296
33%
Extended time limit
Below avg (41%) #77 of 296
44%
Minor dwellings approved
133 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
38%
Change of use approved
26 decided
1,330
Total decisions
298 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings