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 dates22,879Searchable applications
449Recorded as pending
80%Approval rate · 21,228 approved or refused records
4,165Refused applications
17,063 approved · 4,165 refused · 896 withdrawn. Received dates in our records: 1 Sept 2020 to 5 Oct 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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
- Approval76567/APP/2023/2362
Erection of a part single, part double storey side extension with alterations to rear fenestrations.
146 GROSVENOR CRESCENT HILLINGDON UB10 9EY
Received 8 Aug 2023 - Refusal (Appealed)45997/APP/2024/2944
Erection of part single storey, part double storey rear and side extensions including roof extensions and amendment to fenestration.
23 DAYMER GARDENS EASTCOTE PINNER
Received 6 Nov 2024 - Approval48998/APP/2026/1914
Erection of a part single part double storey rear extension and a front porch, following demolition of existing single storey rear extension
34 WEYMOUTH ROAD HAYES
Received 31 Jul 2026 - Refusal40757/TRE/2022/215
To remove One Cedar T8 on TPO 337
IBIS HOTEL, 112-114 BATH ROAD HARLINGTON
Received 13 Oct 2022 - Withdrawn (P)8248/APP/2023/959
Repainting of existing shop front, erection of non-illuminated fascia signs and an externally illuminated projecting sign and internal illuminated roundel sign. Internal fit out as coffee shop (Application for Listed Building Consent).
25-26 HIGH STREET UXBRIDGE UB8 1JN
Received 31 Mar 2023 - Approval19731/TRE/2025/101
TPO 382 T4 1 x Oak crown lift 2.5m. T6 1 x Oak prune away from school, 3m clearance. T3 1 x Oak reduce lateral limb growing from low limb at 6m north.
BISHOP RAMSEY C OF E SCHOOL WARRENDER WAY RUISLIP
Received 9 Apr 2025 - Approval76101/APP/2021/125
Conversion of garage to habitable use and single storey side/rear extension including demolition of existing conservatory
26 SUSSEX ROAD ICKENHAM UB10 8PL
Received 13 Jan 2021 - Approval47726/APP/2024/2506
Erection of a single storey rear extension, following partial demolition of existing rear extension.
30 BEECH AVENUE RUISLIP
Received 18 Sept 2024 - Undecided6843/APP/2026/2264
Installation of a combined heat and power (CHP) system and associated infrastructure.
HOLIDAY INN SIPSON ROAD WEST DRAYTON
Received 23 Sept 2026 - Approval19777/APP/2024/3273
Conversion of roof space to habitable use to include a rear dormer and 3no. front roof lights.
47 MILDRED AVENUE HAYES
Received 16 Dec 2024 - Prior Approval N/Req76096/APP/2020/4177
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 3.65 metres and for which the height of the eaves would be 2.7 metres
34 ADELPHI CRESCENT HAYES UB4 8LZ
Received 17 Dec 2020 - Approval4803/APP/2022/238
Conversion of roof space to habitable use to include rear and side dormers and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
49 ST MARTINS APPROACH RUISLIP
Received 26 Jan 2022 - Approval44204/APP/2020/3672
Single storey rear extension, conversion of roofspace to habitable use to include 2 x rear dormers, 2 x front rooflights, alteration to front elevation and conversion of dwelling from Use Class C3(b) to Use Class C2, extension of vehicular crossover and detached outbuilding to be used as gym/recreation room with attached smoking shelter (Part Retrospective)
THE RELIANT CARE HOME 180 CHURCH ROAD HAYES UB3 2LS
Received 10 Nov 2020 - Approval565/APP/2026/1090
Erection of rear conservatory (Application for a Certificate of Lawful Development for an Existing Development)
1 WEST HATCH MANOR RUISLIP
Received 30 Apr 2026 - Approval31048/APP/2023/588
Erection of a single storey outbuilding to rear of garden.
38 CAMPDEN ROAD ICKENHAM
Received 28 Feb 2023 - Approval10453/APP/2021/4325
Erection of a single storey rear and two storey side and rear extensions.
95 CORONATION ROAD HAYES
Received 24 Nov 2021 - Objection39707/APP/2022/3243
Out of borough consultation for Buckinghamshire County Council: Outline planning application with all matters reserved except for principal points of access for the redevelopment of the former landfill site to comprise a data centre development (Use Class B8 (Data Centre)) of up to 163,000 sq.m (GEA) delivered across 3 buildings to include ancillary offices, internal plant and equipment and emergency back-up generators and associated fuel storage. The scheme includes site wide landscaping and the creation of parkland, and may also include cycle and car parking, internal circulation routes, soft and hard landscaping, security perimeter fence, lighting, earthworks, District Heating Network, sustainable drainage systems, ancillary infrastructure and a substation.
Woodlands Park Landfill Site Land South Of Slough Road Iver Buckinghamshire
Received 24 Oct 2022 - Approval38074/APP/2026/1405
Replacement of existing rear ramp and construction of rear terrace with associated structures. Refurbishment of the existing fourth floor terrace with associated structures and landscaping. Construction of front entrance canopy. Alterations to existing facade glazing. Reorganisation and provision of car and cycle parking, hard and soft landscaping works and associated development.
PROSPECT HOUSE 97 OXFORD ROAD UXBRIDGE UB8 1LU
Received 5 Jun 2026 - Withdrawn (P)76641/APP/2026/457
Conversion of 5 office car parking spaces into hand car wash, including the installation of a canopy on Moorhall Road.
Chaplin House MOORHALL ROAD HAREFIELD UB9 6NS
Received 22 Feb 2026 - Refusal (Appealed)15193/APP/2021/2180
Conversion of roof space to habitable use to include a rear dormer and 3 front roof lights
40A WINDMILL HILL RUISLIP
Received 28 May 2021 - Approval34917/APP/2023/13
Retention of existing outbuilding as use as a gym/home office (retrospective application)
4 WINDSOR GARDENS HAYES
Received 3 Jan 2023 - Approval79704/APP/2026/75
Conversion of roof space to habitable use to include a hip to gable extension, rear dormer, front roof lights, and the erection of a single storey rear extension and front porch (part retrospective)(amended description)
78 LYNHURST CRESCENT HILLINGDON UB10 9EQ
Received 12 Jan 2026 - Approval36720/APP/2025/209
Erection of a part double storey side/rear extension.
84 DEANE CROFT ROAD EASTCOTE PINNER
Received 28 Jan 2025 - Refusal48333/APP/2023/2020
Confirmation of existing use as 2no self-contained flats (Application for a Certificate of Lawful Development for a Proposed Development)
59 PENNINE WAY HARLINGTON
Received 10 Jul 2023
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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