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Holly Wood House, 4 Roxborough Avenue, Harrow, HA1 3BU

P/1413/23Cert.Lawful Proposed Devt.(DEL)Approved
Outline / PiP

Approved on 11 July 2023

Council decision: GrantDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Certificate of lawful development (proposed): single storey rear extension

Received
16 May 2023
Decision level
Delegated (officer decision)
Ward
Greenhill
  1. Received16 May
  2. Validated22 May
  3. Consult.
  4. Target
  5. Decided11 Jul

Decided in 50 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at Holly Wood House, 4 Roxborough Avenue, Harrow, HA1 3BU. Harrow has handled 2,393 applications of this type. This one was decided in 56 days. The site is in a conservation area. There have been 2 other applications at this address. In the past year there have been 115 applications across Greenhill. We hold 2,197 applications in total for the HA1 postcode area.

84% of outline applications at London Borough of Harrow were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
HA1 3BU
Application type
Cert.Lawful Proposed Devt.(DEL)
Scale / size
Small

Planning application dates

Date validated
22 May 2023
Application expires
11 July 2023

Applicant and agent

Agent address
Unit 126 Desbox East Richardson Street High Wycombe Hp112Gg United Kingdom

Planning decision

Statutory period
50 days

Additional information

Planning Portal ID
PP-12153430
UPRN
100023028264
Documents
10

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Harrow on-the-Hill / Roxborough Park and The Grove
  • Brownfield land register: Bessborough Road, 71A, Carspecs House, HarrowRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (20)

flood storage areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Harrow

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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