Skip to content

Ruislip, HA4 0DG

80217/APP/2026/1996Lawful development: Proposed usePermitted
Lawful development certificate

Proposal

Conversion of roof space to habitable use to include a rear dormer roof extension with juliet balcony, 3 front roofights (Application for a Certificate of Lawful Development for a Proposed Development)

Received
12 August 2026
Decided
6 October 2026 · Approval
Ward
RUISLIP MANOR 2022
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.

  1. Received12 Aug
  2. Validated12 Aug
  3. Consult.
  4. Target7 Oct
  5. Decided6 Oct

Decided in 55 days (council typically 56)

8 weeks typical decision time in Hillingdon95% of lawful development: proposed use applications approved

This is a planning application for a dormer extension at Ruislip, HA4 0DG. Hillingdon has handled 527 applications of this type and approves nearly all of them, typically deciding them in 48 days. This one was decided in 55 days, 7 days longer than Hillingdon's median. There are no previous applications recorded at this address. In the past year there have been 75 applications across RUISLIP MANOR 2022. We hold 745 applications in total for the HA4 postcode area.

Application Details

Reference
80217/APP/2026/1996
Address
Ruislip, HA4 0DG
Postcode
HA4 0DG
Local Authority
Hillingdon
Application Type
Lawful development: Proposed use
Decision Status
Permitted
Ward
RUISLIP MANOR 2022

Applicant & Agent

Planning Application Dates

Date Received
12 August 2026
Target Decision Date
7 October 2026
Date Decided
6 October 2026
Date Validated
12 August 2026
Date Submitted
12 August 2026

Planning Decision

Decision
Approval
Case Officer
Samuel Patten

Publicity

Appeal

Additional Information

Coordinates
51.563370, -0.405381
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Hillingdon

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 HA4

New planning applications delivered to your inbox weekly.

Planning constraints

Designations that overlap or adjoin the site outline.

  • Flood zone 2: Medium probability (rivers and sea)
  • Article 4 direction: Residential extensions

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 2026-10-09. 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.

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report