Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
England · Local authority
London Borough of Hillingdon
Planning applications.
Explore collected planning applications and decisions for London Borough of Hillingdon. Search an address, application reference or proposal to find a record.
Collected application statistics
Collected records · All available dates24,979Searchable applications
442Recorded as pending
80%Approval rate · 23,227 approved or refused records
4,719Refused applications
18,508 approved · 4,719 refused · 965 withdrawn. Received dates in our records: 27 Feb 2020 to 5 Oct 2026. Most recent record check: 14 Oct 2026. Counts reflect the last collected status; some records may be out of date.
Local planning information
Council sources checked 14 Sept 2026Planning information Planning and building controlLocal plan Planning policyPre-application advice Pre-application process and feesArticle 4 directions Article 4 Directions
Conservation areas and Article 4 directions
Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.
Conservation areas39 mapped area records
Article 4 direction areas149 mapped area records1 identified HMO area records; remaining records unclassified
Interactive planning map loads with JavaScript. Dataset sources are linked below.
Download Article 4 coverage for all authorities (CSV)
Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.
Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.
More application records
- Approval76823/ADV/2021/55
Installation of 1 no. externally illuminated fascia sign, 1 no. non-illuminating projecting sign, 1 no. awning and window graphics.
30 HIGH STREET RUISLIP HA4 7AN
Received 21 Oct 2021 - Approval70840/APP/2023/3445
Retrospective application for retention of installation of air conditioning unit on side elevation at first floor level.
38 WARREN DRIVE RUISLIP HA4 9RD
Received 29 Nov 2023 - Approval17412/APP/2021/2904
Variation of condition 2 (Approved Plans) of planning permission Ref: 17412/APP/2019/2186 (Single storey side extensions, single storey rear extension and for conversion of roofspace to habitable use to include, raising of ridge of roof, 6 side dormers, 5 side rooflights and extension and conversion of front and rear of roof from hip to gable end with new gable end windows) to allow for fenestration alterations and additional accommodation within roofspace
43 SWEETCROFT LANE HILLINGDON
Received 26 Jul 2021 - Approval29266/APP/2021/2026
Conversion of roofspace to habitable use and external alterations to the building to create 2 x studio flats involving infilling of space between the existing rear projections and installation of 2 dormers to rear and 4 front rooflights
17-19 LONG LANE ICKENHAM
Received 19 May 2021 - Refusal49176/APP/2020/2141
Retention of shopfront
193 FIELD END ROAD EASTCOTE PINNER
Received 13 Jul 2020 - Approval28493/APP/2022/483
Erection of a single storey rear extension.
100 MERTON AVENUE HILLINGDON
Received 16 Feb 2022 - Approval24272/APP/2022/236
Erection of a first floor rear extension with internal alterations and rear conservatory (part - retrospective)
20 SWANAGE WAYE HAYES
Received 26 Jan 2022 - Approval10935/APP/2022/2122
Erection of a pair of semi-detached houses involving the demolition of existing dwelling and outbuilding.
78 THE DRIVE ICKENHAM
Received 3 Jul 2022 - Prior Approval N/Req62687/APP/2020/3948
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 2.9 metres, and for which the height of the eaves would be 2.9 metres.
144 ASHFORD AVENUE HAYES MIDDLESEX
Received 30 Nov 2020 - Approval76231/APP/2021/776
Part two storey, part single storey side/rear extension
2 PRINCES PARK LANE HAYES UB3 1JS
Received 26 Feb 2021 - Approval28374/APP/2024/350
Demolition of conservatory to the front elevation and refurbishment works
THE OLD WORKHOUSE BREAKSPEAR ROAD NORTH HAREFIELD
Received 12 Feb 2024 - Approval60090/APP/2023/1302
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end with new gable end window and removal of chimney (Application for a Certificate of Lawful Development for a Proposed Development)
111 SOUTHBOURNE GARDENS RUISLIP
Received 3 May 2023 - Approval76269/APP/2021/2801
Conversion of roof space to habitable use to include a rear dormer with two juliette balconies, 3 front roof lights and conversion of both sides of roof from hip to gable end with 3 side facing windows (Application for a Certificate of Lawful Development for a Proposed Development)
20 HAZELWOOD DRIVE PINNER HA5 3TT
Received 16 Jul 2021 - Withdrawn (P)40305/APP/2021/4208
Non-Material Amendment to planning permission ref. 40305/APP/2021/363, dated 30 March 2021 (Single storey rear extension with roof light, two storey side extension and conversion of roofspace to habitable use to include a rear dormer, 2 x front rooflights) to lower the finish floor level with only one step down to patio; revised roof lights; revised fenestrations in the rear and side elevations and add screens either side of the patio.
37 BURWOOD AVENUE EASTCOTE
Received 12 Nov 2021 - Approval32378/TRE/2021/65
To carry out tree surgery including the removal of the lowest limb over garden back to source one Oak, T11 on TPO 295
77 PARK AVENUE RUISLIP
Received 11 Mar 2021 - Approval7668/APP/2023/1558
Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
38 WARWICK CRESCENT HAYES
Received 30 May 2023 - Approval76741/APP/2021/3466
Erection of a single storey side and rear extension following demolition of existing conservatory.
28 NAPIER CLOSE WEST DRAYTON UB7 9LB
Received 13 Sept 2021 - Approval9011/APP/2020/1598
Details pursuant to Conditions 3 (tree protection), 4 (landscaping) and 5 (drainage plan) of planning permission Ref: 9011/APP/2019/4072, dated 20-03-20 (Creation of 2 formal hospital gardens including planting, furniture and paths)
HAREFIELD HOSPITAL HILL END ROAD HAREFIELD MIDDLESEX UB9 6JH
Received 23 May 2020 - Approval44346/APP/2024/1137
Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
55 NIELD ROAD HAYES
Received 30 Apr 2024 - Refusal16522/APP/2024/1203
Erection of single storey extension to rear (Application for a Certificate of Lawful Development for a Proposed Development)
12 BESSINGBY ROAD RUISLIP
Received 7 May 2024 - Approval24166/APP/2025/2915
Erection of single storey wraparound extension to the side and rear, following demolition of existing rear and side extension
16 HUGHES ROAD HAYES
Received 18 Nov 2025 - Approval77460/APP/2024/2878
Details pursuant to the discharge of Condition 25 (Impact on London Underground Infrastructure) of planning permission ref. 77460/APP/2023/2671, dated 09-01-2024 (Replacement of vacant car sales centre with a 3-storey mixed use development comprising of 1 x 1-bed apartment, 7 x 2-bed apartments and 1 x 3-bed apartment, with associated ground floor undercroft car and cycle parking and ground floor commercial space (Use Class E).)
Northwood Commercial Sales/Autocentre Northwood Ltd PINNER ROAD NORTHWOOD HA6 1DD
Received 30 Oct 2024 - Refusal36375/APP/2025/1322
Erection of a part two storey side and rear extension, including access to roof space, rear conservatory and extension and modification of the existing outbuilding.
24 CHERRY GROVE HILLINGDON
Received 12 May 2025 - Approval54054/APP/2020/2781
Conversion of roof space to habitable use to include a rear dormer with Juliette balcony, 2 front rooflights and gable end window and single storey side extension (Application for a Certificate of Lawful Development for a Proposed Development).
17 QUEENS ROAD HAYES
Received 3 Sept 2020
Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.
View all applicationsResearching a proposal in London Borough of Hillingdon
Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.
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What these statistics cover
These figures describe applications collected by PlanningTrack for London Borough of Hillingdon, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.
The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.
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