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 dates24,071Searchable applications
447Recorded as pending
80%Approval rate · 22,361 approved or refused records
4,498Refused applications
17,863 approved · 4,498 refused · 935 withdrawn. Received dates in our records: 22 May 2020 to 5 Oct 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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
- Refusal20621/APP/2023/2949
Erection of a single storey side and rear extension (Application for a Certificate of Lawful Development for an Existing Use)
45 CRANBORNE WAYE HAYES
Received 10 Oct 2023 - Approval56865/APP/2021/982
Details pursuant to Condition 10 (i)(c) (Contaminated Land) of planning permission Ref: 56865/APP/2020/459 (Erection of 4 x 2 bedroom two bedroom and 1 x 3 bedroom houses with associated car parking, landscaping and external works)
LAND ADJACENT TO 1 ST HELEN CLOSE COWLEY
Received 12 Mar 2021 - Approval50818/APP/2026/1308
Erection of outbuilding and gazebo (structure) to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
3D COURT ROAD ICKENHAM
Received 26 May 2026 - Approval10237/APP/2025/486
Change of use from a Class C3 (Dwellinghouse) to a Class C4 (Small HMO) for up to 6 people(Application for a Certificate of Lawful Development for a Proposed Development)
87 BLYTH ROAD HAYES
Received 24 Feb 2025 - Approval78278/APP/2023/2682
Erection of a single storey extension to rear.
45 HARLYN DRIVE PINNER HA5 2DF
Received 12 Sept 2023 - Refusal13135/APP/2022/1883
Erection of single storey extension to side (Application for a Certificate of Lawful Development for a Proposed Development)
360 BATH ROAD HARMONDSWORTH
Received 10 Jun 2022 - Refusal72265/APP/2022/2830
Conversion of garage to a studio (Application for a Certificate of Lawful Development for an Existing Use)
21 GATEWAY CLOSE NORTHWOOD MIDDLESEX HA6 2RW
Received 2 Sept 2022 - Prior Approval N/Req1616/APP/2025/1257
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.09 metres, and for which the height of the eaves would be 3.00 metres
53 OWEN ROAD HAYES
Received 6 May 2025 - Approval46571/APP/2024/100
Part retrospective application for the change of use from Use Class E to Hot Food Takeaway (Sui Generis) including works to extraction fan/flue pipe (amended description).
UNIT 5 TAVISTOCK ROAD YIEWSLEY UB7 7QT
Received 15 Jan 2024 - Refusal77989/APP/2023/1779
Change of use of Agricultural Buildings to a flexible use (Application for Prior Approval under Schedule 2, Part 3, Class R of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended)).
Manor Farm ST CHRISTOPHER ROAD COWLEY
Received 19 Jun 2023 - Approval75945/APP/2020/3314
Change of use from Class C1 Hotels to a Sui Generis temporary homeless accommodation (41 rooms)
RIVERSIDE HOTEL TROUT ROAD YIEWSLEY UB7 7RT
Received 15 Oct 2020 - Approval49035/APP/2024/823
Demolition of existing sheds and erection of new shed.
BUILDING 550 SHOREHAM ROAD EAST HEATHROW AIRPORT
Received 28 Mar 2024 - Approval16110/APP/2021/642
Single storey side extension
26 MIDDLETON DRIVE PINNER
Received 17 Feb 2021 - Approval21826/APP/2024/3052
Construction of a single-storey rear conservatory extension
83 ADELPHI CRESCENT HAYES
Received 18 Nov 2024 - Approval20560/APP/2021/3982
Conversion of roofspace to habitable use to include a hip to gable roof enlargement with side facing window, rear dormer roof extension, 3 x front facing roof lights and erection of a single storey outbuilding to rear of property (Application for a Certificate of Lawful Development for a Proposed Development)
48 FERNCROFT AVENUE RUISLIP
Received 26 Oct 2021 - Approval1884/APP/2026/486
Increase in existing garage roof height.
20 WINCHESTER ROAD NORTHWOOD
Received 24 Feb 2026 - Refusal (Appealed)22134/APP/2021/1580
Single storey side/rear extension (Application for a Certificate of Lawful Development for a Proposed Development)
3 COPSE WOOD WAY NORTHWOOD
Received 21 Apr 2021 - Approval20093/APP/2026/928
Variation of Condition 2 (Approved Plans) of planning permission ref. 20093/APP/2025/2315, dated 09-10-2025 (Variation of Condition 2 (Approved Plans) of planning permission ref. 20093/APP/2025/1111, dated 13-06-2025 (Erection of part single-storey, part two-storey front, side, and rear extensions, including conversion of existing garage into habitable space, conversion of roof space into habitable space including the construction of two rear dormers, two front dormers, the installation of four roof lights, and amendments to fenestration.) to alter internal layouts and depth of proposed extensions.) to amend the fenestration, including repositioning of the principal entrance door, revised window proportions and glazing patterns, and the addition of a large window above the entrance; removal of the semi-circular bay windows and replacement of the associated hipped roof with a gable feature; introduction of a portico entrance detail; installation of an additional rear roof light; and incorporation of reconstituted Bath Stone quoins and stone banding to the front elevation.
24 THE DRIVE ICKENHAM
Received 13 Apr 2026 - Approval75822/APP/2020/2652
Retention of existing outbuilding to rear for use as a garden room
14 SPRINGWOOD CLOSE HAREFIELD
Received 24 Aug 2020 - Approval4501/APP/2024/1618
Installation of an acoustic wall around service yard.
LBH CENTRAL DEPOT 128 HARLINGTON ROAD HILLINGDON
Received 18 Jun 2024 - Refusal49070/APP/2020/3111
Conversion of second floor flat to provide 1 x studio flat, 1 x 1 bedroom flat and alteration of existing flat roofs to dual pitched hipped roofs
RAIL LODGE RYEFIELD CRESCENT NORTHWOOD HA6 1LJ
Received 30 Sept 2020 - Refusal (Appealed)8692/APP/2023/2858
Conversion of roof space to habitable use including erection of 6 no. dormers and erection of a single storey rear extension with habitable roof space. Fenestration changes to rear and side elevations (amended drawings)
123 CHARVILLE LANE HAYES
Received 29 Sept 2023 - Undecided4477/APP/2026/1974
Erection of an Outbuilding to rear garden
129 HERCIES ROAD UXBRIDGE
Received 11 Aug 2026 - Refusal5695/APP/2024/3011
Siting of caravan to rear garden, following demolition of existing outbuilding (Application for a Certificate of Lawful Development for a Proposed Development)
42 CENTRAL AVENUE HAYES
Received 13 Nov 2024
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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