Skip to content

69 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QN

PL/1971/25Certificate of Lawful Development ProposedApproved
Outline / PiP

Approved on 22 September 2025

Council decision: Grant

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: Hip to gable roof alteration and dormer extension. Entrance porch to match with the existing front elevation.

Received
26 July 2025
Ward
Hatch End
  1. Received26 Jul
  2. Validated
  3. Consult.
  4. Target
  5. Decided22 Sep

Decided in 58 days (council typically 56)

About this application

This is an outline application for a dormer extension at 69 Sylvia Avenue, Hatch End, Pinner, Harrow, HA5 4QN. Harrow has handled 2,393 applications of this type. This one was decided in 58 days. The site is in a conservation area. There are no previous applications recorded at this address. We hold 1,739 applications in total for the HA5 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.Planning something similar? See what gets approved on your street

Application details

Postcode
HA5 4QN
Application type
Certificate of Lawful Development Proposed

Planning application dates

Validated
26 July 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.

Source: Harrow

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

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near HA5

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address