GREEN TILES Priory Drive, Stanmore, Harrow, HA7 3HL Data via plota.co.uk

PL/2285/26 - Householder Pending Consideration
Extensions & alterations

Proposal

Replacement front portico; single storey rear extensions; rear balcony removed and replaced with glazing; replacement windows; external alterations Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
26 Aug 2026
Decision
Expected by 21 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 21 Oct 2026, from Harrow's recent extensions.

Documents 20

Statements & assessments 2

PDF Design and Access Statement Supporting Info (Redacted) · 10 Sept 2026 View ↗ PDF Design & Access Statement Report/Assessment · 27 Aug 2026 View ↗

Plans & drawings 11

PDF existing ground Floor Plan(s) Plans · 27 Aug 2026 View ↗ PDF Proposed & Existing Ground Floor Plan(s) Plans · 27 Aug 2026 View ↗ PDF Existing First Floor Plan(s) Plans · 27 Aug 2026 View ↗ PDF Proposed & Existing First Floor Plan(s) Plans · 27 Aug 2026 View ↗ PDF Block plan of the site Plans · 27 Aug 2026 View ↗ PDF location plan Plans · 27 Aug 2026 View ↗ PDF location plan Plans · 27 Aug 2026 View ↗ PDF Proposed & Existing Side Elevation(s) Plans · 27 Aug 2026 View ↗ PDF proposed & existing Front Elevation(s) Plans · 27 Aug 2026 View ↗ PDF Proposed & existing Rear Elevations Plans · 27 Aug 2026 View ↗ PDF Proposed & Existing Side Elevation(s) Plans · 27 Aug 2026 View ↗

Application forms 1

PDF Application Form Redacted Application Form (Redacted) · 27 Aug 2026 View ↗

Consultation & comments 1

PDF Outgoing invalid email response Email · 9 Sept 2026 View ↗

Other documents 5

PDF Email Email · 10 Sept 2026 View ↗ PDF Email Email · 7 Sept 2026 View ↗ PDF Screenshot Supporting Info (Redacted) · 7 Sept 2026 View ↗ PDF Screenshot Supporting Info (Redacted) · 7 Sept 2026 View ↗ PDF Screenshot Supporting Info (Redacted) · 7 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 10

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
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 ↗
Local nature reserve about 187 m away: Bentley Priory
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.
Registered park or garden about 56 m away: Bentley Priory
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 ↗
SSSI about 187 m away: Bentley Priory SSSI
Natural England may need consulting, depending on what is proposed.
Sites of special scientific interest are the best wildlife and geological sites in the country. Development likely to harm one is rarely permitted.
Also on the record
Heritage at risk about 56 m away: Bentley Priory; Inside the Harrow built-up area; Public transport access: PTAL 1a (very poor), TfL 2023, for the 100 m square; Priority habitat about 34 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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

27 Aug 2026Pending

BARLOGAN Priory Drive, Stanmore, Harrow, HA7 3HL

Demolition and redevelopment to provide new 2 storey dwelling with habitable roo...

PL/2296/26

Nearby new applications

9 Sept 2026Pending

TURF HILLS Priory Close, Stanmore, Harrow, HA7 3HW

Removal of Condition 5 (General Permitted Development) attached to planning perm...

PL/2393/26
27 Aug 2026Pending

BARLOGAN Priory Drive, Stanmore, Harrow, HA7 3HL

Demolition and redevelopment to provide new 2 storey dwelling with habitable roo...

PL/2296/26
26 Aug 2026Pending

GREEN TILES Priory Drive, Stanmore, Harrow, HA7 3HL

Single storey rear extension: 5.50 metres deep, 3.90 metres maximum height and 3...

PL/2281/26
26 Aug 2026Pending

GREEN TILES Priory Drive, Stanmore, Harrow, HA7 3HL

Single storey rear extension: 7.00 metres deep, 3.77 metres maximum height and 3...

PL/2282/26

Important details

Council
Harrow
Application type
Householder
Postcode
HA7 3HL
Received
26 Aug 2026
Validated
26 Aug 2026
Ward
Stanmore
Case officer
Show
Target decision
21 Oct 2026
Decision level
Delegated decision
Applicant
Show
Agent
PBARC LTD

Decision outlook

Day 44 of the 56-day target. Harrow usually decides extensions by day 56.

Day 4412 days to the 56-day target
84%decided within 8 weeks
78%approved
1,726decided 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
21 Oct 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
Barlogan Priory Drive, Stanmore, Harrow, HA7 3HL
Single storey rear extension: 6.80 metres deep, 4.00 metres maximum height and 3.75 metre…
PL/1998/25
2025 Approved
Barlogan Priory Drive, Stanmore, Harrow, HA7 3HL
Single storey rear extension: 7.67 metres deep, 4.00 metres maximum height and 3.00 metre…
PL/1573/25
2025 Refused
Barlogan Priory Drive, Stanmore, Harrow, HA7 3HL
Single storey rear extension: 6.80 metres deep, 4.90 metres maximum height and 3.75 metre…
PL/1576/25
2025 Approved
Hunters Moon Priory Drive, Stanmore, Harrow, HA7 3HL
TPO No. 263 Priory Drive (No.2) Stanmore G1 Lawson cypress x 4 (front boundary) Reduce by…
PL/0416/25
2024 Approved
Ad Astra Priory Drive, Stanmore, Harrow, HA7 3HL
TPO No.633 Priory Drive (No.1) Stanmore A1 Cedar (rear garden): Selective weight reductio…
PL/1262/24
2023 Approved
Ad Astra Priory Drive, Stanmore, Harrow, HA7 3HL
(all trees within A1: contractor's tree numbering used below): T1, T2, T4, T5, T8 - T12 O…
P/1687/23
2021 Approved
Mallory, Priory Drive, Stanmore, HA7 3HN
Variation of condition 2 (approved plans) attached to planning permission p/1404/18 dated…
P/0848/21/5932
2020 Approved
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Single storey outbuilding and linked garage in rear garden (retrospective)
P/1463/20
2020 Approved
Mallory, Priory Drive, Stanmore, HA7 3HN
Variation of condition 2 (approved plans) attached to planning permission p/1404/18 dated…
P/1977/19/5717
2019 Approved
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Details Pursuant To Condition 5 (Disposal of Sewage), Condition 6 (Disposal of Surface Wa…
P/1905/19
2019 Withdrawn
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
INVALID - First floor extension with roof modifications to suit new layout, new main entr…
P/1131/19
2018 Approved
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Details pursuant to condition 9 (landscaping) and 12 (boundary treatment) attached to pla…
P/4032/18
2018 Approved
Hunters Moon, Priory Drive, Stanmore, HA7 3HL
Single storey front extension and single storey side extensions
P/1688/18
2018 Approved
Ad Astra Priory Drive, Stanmore, Harrow, HA7 3HL
A1 Mixed Oak & Beech group (rear of detached garage and near front boundary with Priory D…
P/0573/18
2017 Approved
Green Verges, Priory Drive, Stanmore, HA7 3HL
Excavation works to provide basement level with swimming pool; single storey front extens…
P/3577/17
2017 Approved
Dormers, Priory Drive, Stanmore, HA7 3HL
A1 poplar (front left-hand side): prune back to previous reduction points (approx. 5 Yrs…
P/1233/17
2017 Approved
Mallory, Priory Drive, Stanmore, HA7 3HN
Redevelopment to provide a two storey replacement dwelling
P/4492/16/5092
2016 Approved
Mallory, Priory Drive, Stanmore, HA7 3HN
Redevelopment to provide a two storey replacement dwelling
P/4492/16
2016 Approved
Mallory, Priory Drive, Stanmore, HA7 3HN
Redevelopment to provide a two storey replacement dwelling with habitable roofspace; deta…
P/3330/16
2016 Approved
White House, Priory Drive, Stanmore, HA7 3HL
Front garden t1 amelanchier - approximately 3.00M thin crown density by 30% t2 t4 3 x bir…
P/0510/16
2025 Approved
Barlogan Priory Drive, Stanmore, Harrow, HA7 3HL
Certificate of Lawful Development Proposed: Two storey rear extension.
PL/1582/25
2025
Barlogan Priory Drive, Stanmore, Harrow, HA7 3HL
Certificate of Lawful Proposed Development: Single storey detached outbuilding in the rea…
PL/1518/25
2023 Refused
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Variation of Condition 2 (approved plans) attached to planning permission P/1392/22 dated…
P/0592/23
2022 Approved
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Variation of Condition 2 (Approved plans) attached to planning permission P/1404/18 dated…
P/1392/22
2021 Refused
Mallory Priory Drive, Stanmore, Harrow, HA7 3HN
Variation of condition 2 (approved plans) attached to planning permission P/1404/18 dated…
P/5003/21
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