Old Pye House, West Street, Harrow, HA1 3EH Data via plota.co.uk

PL/2380/26 - Approval of Details Reserved by Condition Pending Consideration
Admin / proceduralCommercial premises

Proposal

Details pursuant to Conditions 11 (Mitigation and Lighting Strategy) and 12 (Written Scheme of Investigation) attached to planning reference PL/1589/24 dated 09/01/2026 for Demolition of lean-to extension and Victorian toilet block; construction of a detached single storey timber frame annex building adjacent to Old Pye House for use as artists live/work studio and overnight accommodation (Class C3) in connection with Old Pye House (as existing Class E); construction of retaining walls, fence, steps and landscaping; installation of free standing enclosed air source heat pump to front Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
8 Sept 2026
Decision
Expected by 3 Nov 2026

This application is under consideration - no decision has been issued yet. A decision is expected by 3 Nov 2026.

Documents 6

Statements & assessments 3

PDF Archaeological assessment Report/Assessment · 8 Sept 2026 View ↗ PDF Bat Survey Report/Assessment · 8 Sept 2026 View ↗ PDF Bat Survey Report/Assessment · 8 Sept 2026 View ↗

Plans & drawings 2

PDF External Lighting Plans · 8 Sept 2026 View ↗ PDF Bat Box Plans · 8 Sept 2026 View ↗

Application forms 1

PDF Application Form Redacted Application Form (Redacted) · 8 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 9

5 listed buildings within 150 m of the postcode pin
Nearest: Mission House, Grade II, about 2 m from the postcode pin · 5 Grade II
The site itself is not listed. 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 all 5 with distances
Historic England ↗
Harrow on the Hill Village Conservation Area 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.
Archaeological priority area: (core area of Harrow on the Hill)
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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
Heritage at risk about 24 m away: Old Pye House, West Street, HA1 3EL; Registered park or garden about 206 m away: Harrow Park (Formerly Flambards); Inside the Harrow built-up area; Metropolitan Open Land about 52 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 18 September 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 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
Approval of Details Reserved by Condition
Postcode
HA1 3EH
Received
8 Sept 2026
Validated
8 Sept 2026
Ward
Harrow on the Hill
Case officer
Show
Target decision
3 Nov 2026
Decision level
Delegated decision
Applicant
Show

Consultation & key dates

Statutory expiry
3 Nov 2026

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Approved
Listed building consent: demolition of a 1960s breezeblock lean-to extension and Victoria…
PL/1590/24
2024
Demolition of lean-to extension and Victorian toilet block; construction of a detached si…
PL/1589/24
Within ~100m

Nearby activity

2025
Metropolitan Police, Harrow On The Hill Police Station, 76 West Street, Harrow On The Hill, Harrow, HA1 3ER
“Change of use of Le Beau House from Office (Use Class E(g)(i) to a teaching facility (…
PL/2559/25
2025 Approved
56 Crown Street, Harrow Hill, Harrow, HA2 0HR
Harrow on the Hill Village Conservation Area Ash (rear garden): Crown Reduce by up to 30%…
PL/2264/25
2025
40 Nelson Road, Harrow, HA1 3ET
Replacement windows in front elevation
PL/2071/25
2025
3 Wellington Terrace, Harrow On The Hill, Harrow, HA1 3EP
Replacement windows in front elevation
PL/1169/25
2025 Approved
19a Nelson Road, Harrow, HA1 3ET
Single storey rear infill extension, External alterations
PL/0855/25
2025 Approved
29 Nelson Road, Harrow, HA1 3ET
Replacement roof light in rear roof slope, Replacement windows in first floor rear elevat…
PL/0733/25
2025
55 West Street, Harrow On The Hill, Harrow, HA1 3EL
Replacement entrance door in front elevation, Replacement windows in front elevation, Ren…
PL/0707/25
2025 Approved
36 Crown Street, Harrow Hill, Harrow, HA2 0HR
Replacement stairs to front elevation, Replacement door and window in ground floor front…
PL/0563/25
2025 Approved
81 West Street, Harrow On The Hill, Harrow, HA1 3EL
Single and two storey rear extension (Demolition of stairs to rear)
PL/0380/25
2024 Withdrawn
29 Nelson Road, Harrow, HA1 3ET
Conversion of loft to habitable room, Rooflights in rear elevation, Replacement windows i…
PL/2728/24
2024 Approved
Mission House West Street, Harrow On The Hill, Harrow, HA1 3EH
L isted Building Consent: External alterations to south and east elevations including sig…
PL/2046/24
2024 Refused
55 West Street, Harrow On The Hill, Harrow, HA1 3EL
Change of use and conversion of 55 and 55b West Street from use class E (Commercial, Busi…
PL/1957/24
2024 Approved
36 Crown Street, Harrow Hill, Harrow, HA2 0HR
Replacement of front door and all windows; existing ground floor level to be lowered; sin…
PL/0469/24
2024 Approved
13 Wellington Terrace, Harrow On The Hill, Harrow, HA1 3EP
Harrow on the Hill Village Conservation Area SG1 - Mixed species shrubs including Viburnu…
PL/0349/24
2023 Approved
18 Nelson Road, Harrow, HA1 3ET
Installation and replacement of front, rear doors and two windows at rear on ground floor…
PL/0483/23
2023 Approved
Srm Plastics Ltd, S R M Works West Street, Harrow On The Hill, Harrow, HA1 3EH
Details pursuant to Condition 8 (landscaping plan/biodiversity) attached to planning perm…
P/1177/23
2023 Approved
Srm Plastics Ltd, S R M Works West Street, Harrow On The Hill, Harrow, HA1 3EH
Details pursuant to conditions 5 (drawings/sample), 8 (landscaping plan), 12 (hard and so…
P/0711/23
2023 Approved
19 Victoria Terrace, Harrow On The Hill, Harrow, HA1 3EW
Details pursuant to Conditions 5 (Materials), 6 (Construction Method Statement and Logist…
P/1645/23
2023 Approved
28 Nelson Road, Harrow, HA1 3ET
Installation and replacement of windows to rear; external alterations
P/1580/23
2023 Approved
8 Nelson Road, Harrow, HA1 3ET
G1 Lilac, Japanese Red Cedar ( rear garden, right-hand boundary of no.8): Reduce hedge he…
P/1069/23
2016 Approved
30 Nelson Road, Harrow, HA1 3ET
Replacement roof tiles (retrospective)
P/1776/16
2016 Approved
31 Nelson Road, Harrow, HA1 3ET
Replacement roof tiles
P/1441/16
2016 Approved
48 Crown Street, Harrow, HA2 0HR
Single storey rear extension
P/0853/16
2016 Approved
3 Nelson Road, Harrow, HA1 3ET
Single storey rear infill extension
P/0759/16
2016
6 Crown Street, Harrow, HA2 0HR
Installation of two rooflights in rear roofslope
P/3967/15/4934
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Major dwellings

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