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70 Salisbury Road, Harrow, HA1 1NZ

PL/3352/25Certificate of Lawful Development ExistingApproved
Lawful development certificate

Approved on 9 March 2026

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 Existing Development: Change of use of property from Single dwelling (C3) to HMO for up to 6 People (C4) with associated cycle store to rear and bin store to front; Alterations to roof to form end gable and rear dormer; Roof lights in front roof slope; Steps to rear; External alterations

Received
24 December 2025
Ward
Marlborough
  1. Received24 Dec
  2. Validated
  3. Consult.
  4. Target
  5. Decided9 Mar

Decided in 75 days (council typically 56)

About this application

This is an application to amend a permission at 70 Salisbury Road, Harrow, HA1 1NZ. Harrow has handled 642 applications of this type. This one was decided in 75 days, 3 weeks longer than Harrow's typical decision time. The site is in a conservation area. There have been 4 other applications at this address. In the past year there have been 93 applications across Marlborough. We hold 2,197 applications in total for the HA1 postcode area.

76% of amendment 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 1NZ
Application type
Certificate of Lawful Development Existing

Planning application dates

Validated
24 December 2025

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • 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 (22)

flood storage areas, conservation 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, heritage coasts and brownfield registers.

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.

Planning history at this site

6 other applications at this property, newest first.

  1. 2026
    12 Oct

    70 Salisbury Road / LDC 7-person HMO

    PendingLawful development: Proposed usePL/2681/26
  2. 2026
    10 Sep

    Certificate of lawful development (proposed): Change of use from a 6-bed HMO (Class C4) to a 7-bed, 7-person…

    RefusedApplicationPL/2406/26
  3. 2026
    18 Feb

    Single storey side and rear infill extensions; Change of use from a Small HMO (Class C4) to an 8-person HMO…

    RefusedFull Planning ApplicationPL/0444/26
  4. 2025
    19 Jun

    Change of use from a 6-bed HMO (Class C4) to a 7-bed, 7-person HMO (Sui-Generis); refuse and cycle storage

    PendingFull planning permissionPL/1600/25
  5. 2025
    3 Feb

    Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear…

    ApprovedOutlinePL/0253/25
  6. No date

    TPO No. 433 Salisbury Road (No.2) Harrow T1 Ailanthus (front): Outgrown location. Potential subsidence…

    PendingWorks to Protected TreesPL/1723/26

Source: Harrow

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

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