HOLLY WOOD HOUSE, 4 Roxborough Avenue, Harrow, HA1 3BU Data via plota.co.uk

Approved PL/1838/26 - Approval of Details Reserved by Condition
Admin / procedural
Council
Harrow 4.9/10
Date received
15 Jul 2026
Postcode
HA1 3BU
Type
Approval of Details Reserved by Condition

Description

Details pursuant to condition 3 (materials) attached to planning permission PL/0826/26 dated 22/05/2026 for Replacement roof tiles; Roof light in rear roof slope Data via plota.co.uk

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Last checked

Associated applications 2

Site constraints 3

Roxborough Park and The Grove 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.
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 ↗
Also on the record
Inside the Harrow built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · 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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Historical activity at this location

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

This property

Previous applications at this address

2025 Approved
Outbuilding at rear for use as a games room and storage
PL/2448/25
2023 Approved
Certificate of lawful development (proposed): single storey rear extension
P/1413/23
2022 Approved
Single storey side infill extension; single storey side to rear extension; single storey…
P/4140/22
2021 Approved
T1 Oak of MWA Arb Report (front of 4 Roxborough Ave, on side bdry) Remove to near ground…
P/1991/21
2021 Refused
Single storey rear extension: 8.00 metres deep, 3.00 metres maximum height and 3.00 metre…
P/1087/21/PRIOR
Within ~100m

Nearby activity

2025 Approved
Flat 3, 10 Roxborough Avenue, Harrow, HA1 3BU
Timber outbuilding (retrospective)
PL/1257/25
2023 Withdrawn
3 Roxborough Avenue, Harrow, HA1 3BT
WITHDRAWN - INCORRECT APPLICATION - REFUND REQUESTED Proposed ground floor rear extension…
P/2420/23
2023 Withdrawn
3 Roxborough Avenue, Harrow, HA1 3BT
Single and two storey rear extension; external alterations (demolition of rear extension)
P/1767/23
2022 Withdrawn
Flat 24, 2 Roxborough Avenue, Harrow, HA1 3BU
INVALID
P/3910/22
2022 Withdrawn
Flat 24, 2 Roxborough Avenue, Harrow, HA1 3BU
INVALID
P/3911/22
2022 Withdrawn
Flat 24, 2 Roxborough Avenue, Harrow, HA1 3BU
INVALID - Confirmation of compliance of conditions attached to planning permission P/4467…
P/3912/22
2022 Approved
25 Roxborough Avenue, Harrow, HA1 3BT
Single storey rear extension; External alterations
P/0394/22
2021 Refused
25 Roxborough Avenue, Harrow, HA1 3BT
Removal of condition 13 (permitted development) attached to planning permission EAST/351/…
P/4826/21
2021
25 Roxborough Avenue, Harrow, HA1 3BT
Single storey rear extension; conversion of garage to habitable room; external alterations
P/4644/21
2021 Refused
25 Roxborough Avenue, Harrow, HA1 3BT
Single storey rear extension: 5.00 metres deep, 2.90 metres maximum height and 2.90 metre…
P/3925/21/PRIOR
2020 Approved
3 Roxborough Avenue, Harrow, HA1 3BT
Alterations to roof to form wrap around dormer to side and rear roofslopes
P/3945/20
2020 Approved
8 Roxborough Avenue, Harrow, HA1 3BU
T1 Lime: Reduce back to previous points T2 Lawson Cypress: Trim back on all sides T3 Lime…
P/3557/20
2018 Approved
Jato Dynamics, Carspecs House Bessborough Road, Harrow, HA1 3XW
Installation of T.V aerial and satellite dish on roof
P/0209/18
2017 Approved
19 Roxborough Avenue, Harrow, HA1 3BT
Vehicle access
P/5649/17
2017 Approved
Carspecs House, 71A Bessborough Road, Harrow, HA1 3XW
Details pursuant to condition 4 (hard and soft landscape work) of planning permission p/4…
P/5485/17
2018 Withdrawn
Jato Dynamics, Carspecs House Bessborough Road, Harrow, HA1 3XW
INVALID - Three storey side extension to create three flats; extension of two residential…
P/0068/18
2017 Approved
Flat 3, 10 Roxborough Avenue, Harrow, HA1 3BU
Installation and replacement of two timber sash windows to rear elevation
P/3570/17
2017 Withdrawn
Carspecs House, 71a Bessborough Road, Harrow, HA1 3XW
NEW APP - Conversion of Offices (Class B1a) to 29 Self-Contained Flats (Class C3) (PRIOR…
P/4638/17
2016 Approved
8 Roxborough Avenue, Harrow, HA1 3BU
Lime x 2 (front): reduce crown back to previous points lawson cypress (front): reduce hei…
P/3983/16
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