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 dates24,108Searchable applications
447Recorded as pending
80%Approval rate · 22,395 approved or refused records
4,505Refused applications
17,890 approved · 4,505 refused · 936 withdrawn. Received dates in our records: 19 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 Counts reflect the last collected status; some records may be out of date.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
- Approval1192/APP/2024/210
Conversion of roof space to habitable use to include a rear dormer, two hip to gable roof conversions and 4 front roof lights. Erection of a front porch. (Application for a Certificate of Lawful Development for a Proposed Development
1 WEST WAY RUISLIP
Received 26 Jan 2024 - Refusal14756/APP/2022/1475
Construction of an outbuilding for a laboratory and storage purpose
34 KINGSEND RUISLIP
Received 6 May 2022 - Prior Approval N/Req76422/APP/2021/1835
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 3.6 metres, and for which the maximum height of the eaves would be 2.7 metres
35 NORTHOLT AVENUE RUISLIP HA4 6SS
Received 7 May 2021 - Withdrawn (P)18875/APP/2022/3487
Conversion of garage to habitable use (Application for a Certificate of Lawful Development for a Proposed Development)
11 TREESIDE CLOSE WEST DRAYTON
Received 15 Nov 2022 - Approval75117/APP/2020/3389
Single storey outbuilding to rear for use as a gym/garden/household store room (Application for a Certificate of Lawful Development for a Proposed Development)
19 WEST AVENUE HAYES UB3 2EY
Received 20 Oct 2020 - Approval77464/APP/2022/2499
Erection of single storey extension to rear (Application for a Certificate of Lawful Development for a Proposed Development)
4 WYTELEAF CLOSE RUISLIP HA4 7SP
Received 9 Aug 2022 - Refusal22022/APP/2020/4064
Part two storey, part single storey side/rear extension and conversion of roof space to habitable use to include 1 front dormer, 2 rear dormers, 1 front rooflight and associated alterations to roof
191 LONG LANE HILLINGDON
Received 7 Dec 2020 - Approval25527/APP/2024/1053
Proposed Change of Use from Class C3 Dwellinghouse to Class C4 House in Multiple Occupation (Application for a Certificate of Lawful Development for a Proposed Use)
74 DAWLEY ROAD HAYES
Received 23 Apr 2024 - Approval50632/APP/2023/2313
Erection of a single storey side extension, amendments to fenestration including relocation of dormer and upgrade of building materials. New front boundary gate
20A FRITHWOOD AVENUE NORTHWOOD
Received 4 Aug 2023 - Refusal4115/APP/2021/192
Single storey side and rear extension (Application for a Certificate of Lawful Development for a Proposed Development)
128 EVELYN AVENUE RUISLIP
Received 18 Jan 2021 - Refusal76229/APP/2021/1090
Conversion of roofspace to habitable use to include a rear dormer roof extension, 2 x rooflights and conversion of roof from hip to gable end and single storey side/rear extension with alterations to fenestration.
146 SWAKELEYS ROAD ICKENHAM UB10 8BA
Received 19 Mar 2021 - Approval45109/APP/2020/2968
New entrance door, redecoration of shopfront and cladding
78-80 HIGH STREET YIEWSLEY
Received 17 Sept 2020 - Approval73587/APP/2024/1599
Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
132 BOURNE AVENUE HAYES UB3 1QS
Received 17 Jun 2024 - Approval43049/APP/2021/767
Part two storey, part single storey side/rear extension and porch to front involving demolition of existing garage
11 WAVERLEY CLOSE HAYES
Received 26 Feb 2021 - Approval70262/APP/2024/2866
Change of use from dwelling house (Class C3) to children's home (Class C2).
2 WIMBORNE AVENUE HAYES UB4 0HG
Received 29 Oct 2024 - Refusal76797/APP/2021/3726
Erection of single storey side and rear extension together with erection of a detached single storey outbuilding for use as a garden office.
7 NORWICH ROAD NORTHWOOD HA6 1ND
Received 4 Oct 2021 - Refusal58951/APP/2022/2501
Installation of external duct work to rear elevation (retrospective)
109 PINNER ROAD NORTHWOOD
Received 9 Aug 2022 - Approval79688/APP/2025/2434
Conversion of garage to habitable use, including the replacement of the garage door with a window (Retrospective Planning Application)
4 ALDRIDGE AVENUE RUISLIP HA4 9JU
Received 19 Sept 2025 - Approval14627/APP/2024/2376
Details pursuant to the discharge of Conditions 4 (Construction Management Plan), 5 (Sustainable Water Management), 6 (Accessibility), 7 (M4(2) Dwelling Technical Specifications), 8 (Landscaping), and 13 (Energy Efficiency) of planning permission ref. 14627/APP/2021/4567, dated 21-04-2022 (Construction of new 2 storey, 3-bed end-of terrace house with associated landscaping and on-site parking).
32 CHUDLEIGH WAY RUISLIP
Received 3 Sept 2024 - Approval66441/APP/2021/2722
Single storey rear extension and conversion of garage to habitable use including replacement of garage door with window
38 NORTHOLT AVENUE RUISLIP
Received 10 Jul 2021 - Approval4331/APP/2026/916
Details pursuant to the discharge of Conditions 2 (Materials) and 3 (Construction Logistics Plan) of planning permission ref. 4331/APP/2025/2982, dated 30-01-2026 (Proposal for additional 3rd floor to create 5 new units with associated parking, refuse area and cycle parking under the provisions of Schedule 2 Part 20 Class AA of the Town and Country Planning (General Permitted Development) (England) Order 2015.)
GOLF HOUSE 63 NICHOLLS AVENUE HILLINGDON
Received 13 Apr 2026 - Approval49399/APP/2026/1907
Conversion of roof space to habitable use to include hipped to gabled ends, rear dormer with a vent vipe, rooflights to the front, erection of a single storey rear extension, addition of windows to first floor, flat to sloped front porch roof, material change of external finish to brick, all following the demolition of the existing rear conservatory.
31A THE AVENUE UXBRIDGE
Received 31 Jul 2026 - Refusal50387/TRE/2021/289
To carry out tree surgery including a crown reduction by 2-3m and crown lift to 5m from ground level to One Oak T3 on TPO 297
131 PARK AVENUE RUISLIP
Received 20 Oct 2021 - Approval10697/APP/2020/2275
Part two storey, part single storey rear extension
12 WHITETHORN AVENUE YIEWSLEY
Received 22 Jul 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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