STANMORE HALL Wood Lane, Stanmore, Harrow Data via plota.co.uk

PL/2202/26 - Listed Building Consent Pending Decision

Proposal

Listed Building Consent: Conversion of third floor penthouse flat into two, two-bedroom flats; with external alterations including adapting two dormer windows to create roof terrace access doors; rooflights, air vents, automatic opening vents, installation of two air source heat pumps, dry riser cabinet, cold roof vents. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
18 Aug 2026
✓
Validated
1 Sept 2026
Decision
Expected by 27 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 28 Oct 2026, from Harrow's recent changes of use.

Documents 22

All documents on the council site ↗

Site constraints 9

Grade II* listed: Stanmore Hall
List entry 1194606 · 22 m away · 9 more listed buildings within 150 m (9 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 9 with distances
Historic England ↗
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 ↗
Stanmore and Edgware / Little Common conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
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.
Local nature reserve 285 m away: Stanmore Country Park
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.
Also on the record
SSSI 498 m away: Bentley Priory SSSI; 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 · No scheduled monument 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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Important details

Council
Harrow
Application type
Listed Building Consent
Postcode
HA7 4JZ
Received
18 Aug 2026
Validated
1 Sept 2026
Ward
Stanmore
Case officer
Show
Target decision
27 Oct 2026
Decision level
Delegated decision
Applicant
Show
Agent
Planning Resolution Ltd

Decision outlook

Day 57, past the statutory target. 72% of changes of use in Harrow are decided within thirteen weeks, which runs to 1 Dec 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 27 Oct 2026.

Day 571 days past the 56-day target
59%decided within 8 weeks
40%approved
256decided in the last year

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

Consultation & key dates

Statutory expiry
27 Oct 2026
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Other 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