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 dates23,032Searchable applications
449Recorded as pending
80%Approval rate · 21,373 approved or refused records
4,208Refused applications
17,165 approved · 4,208 refused · 899 withdrawn. Received dates in our records: 19 Aug 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 Counts reflect the last collected status; some records may be out of date.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
- Refusal (Appealed)35377/APP/2021/3311
Erection of two storey attached dwelling with associated parking, amenity space and widening of existing dropped kerb (following demolition of single storey side extension and outbuilding)
11 CARNARVON DRIVE HAYES
Received 31 Aug 2021 - Approval79739/APP/2025/2644
Erection of outbuilding to rear garden
14 ST STEPHENS ROAD YIEWSLEY UB7 7RL
Received 13 Oct 2025 - Approval44934/APP/2024/1960
Erection of a single storey rear extension following demolition of existing extension and conservatory.
40 WINDSOR AVENUE HILLINGDON UB10 9AU
Received 19 Jul 2024 - Refusal71641/APP/2021/1828
Conversion of the existing single family dwelling to 1 x 1 bed and 1 x 2 bed units, replacement of the existing rear conservatory, conversion of the loft for habitable use including the construction of a rear dormer and 3 front roof lights.
948 UXBRIDGE ROAD HAYES UB4 0RL
Received 5 May 2021 - Approval78896/APP/2024/1824
Conversion of garage to habitable use (Application for a Certificate of Lawful Development for a Proposed Development)
51B HALFORD ROAD ICKENHAM UB10 8QA
Received 8 Jul 2024 - Withdrawn (P)75918/APP/2021/1984
Details pursuant to the discharge of Condition 8 (Noise) of planning permission ref: 75918/APP/2020/3171 dated 19-11-20 (Installation of mezzanines, external plant compounds, external changes to elevations, and associated works).
UNIT B, HAYES 180 1-3 UXBRIDGE ROAD HAYES UB4 0JJ
Received 17 May 2021 - Approval13287/APP/2025/2235
Conversion of garage to habitable use, erection of a single storey infill side extension and conversion of roof space to habitable use to include a rear dormer and side roof light
28 PAMELA GARDENS EASTCOTE PINNER
Received 20 Aug 2025 - Approval15368/APP/2021/2914
Conversion of garage to habitable use involving replacement of garage door with window
18 EVERSLEY CRESCENT RUISLIP
Received 27 Jul 2021 - Refusal5255/APP/2022/656
Erection of infill extension to existing outbuilding (Application for a Certificate of Lawful Development for a Proposed Development)
5 CHALFONT ROAD HAYES
Received 28 Feb 2022 - Approval19102/APP/2021/1281
Conversion of roof space to habitable use to include a rear dormer with juliette balcony and conversion of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
28 EVERSLEY CRESCENT RUISLIP
Received 30 Mar 2021 - Approval50761/APP/2020/3773
Repair and restoration works to garden walls, formation of natural pond, new detached outbuilding involving demolition of existing outbuilding, single storey extension to dwelling house and resurfacing existing driveway and hard-standing with new entrance gates (Listed Building Consent)
CHURCH GARDENS CHURCH HILL HAREFIELD
Received 17 Nov 2020 - Withdrawn (P)77289/APP/2022/2628
Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
25 WARREN ROAD ICKENHAM UB10 8AA
Received 22 Aug 2022 - Refusal (Appealed)29754/APP/2023/1806
Erection of a double storey side and part first floor rear extension with new front door and amendments to fenestration.
17 WOODSIDE ROAD NORTHWOOD HA6 3QP
Received 21 Jun 2023 - Approval14791/APP/2026/1549
Erection of a single storey rear extension, a front porch, and alterations to existing side extension including raising of ridge height, following the demolition of the existing rear extensions.
57 HILLINGDON HILL HILLINGDON
Received 22 Jun 2026 - Approval67666/APP/2023/3721
The development of a Centre of Excellence for servicing and repair of Airside Support Vehicles (Use Class B2), consisting of a service building with 7no. service bays and 1no. storage bay, an ancillary two storey office building, with associated hardstanding, parking, a wash bay, plant, solar PVs, landscaping and drainage.
FORMER SIPSON GARDEN CENTRE SIPSON ROAD SIPSON UB7 OHW
Received 10 Jan 2024 - Approval35076/APP/2021/997
Single storey side extension and conversion of garage to habitable use
4 CROFT CLOSE HILLINGDON UB10 9LJ
Received 14 Mar 2021 - Refusal46104/APP/2022/1523
Details pursuant to the Discharge of Conditions 8 (Privacy Screens) and 9 (Parking Allocation) of planning permission ref. 46104/APP/2020/789 dated 25/01/2021 (Erection of a roof extension to provide 9 (5 x 3-bed, 3 x 2-bed and 1 x 4-bed) self-contained residential units with car parking, refuse store, amenity space and associated works).
ALLPORT HOUSE, COWLEY BUSINESS PARK HIGH STREET COWLEY UB8 2AD
Received 11 May 2022 - Approval78986/APP/2024/2262
Erection of single storey rear extension following demolition of existing extension.
30 STIRLING ROAD HAYES UB3 3AH
Received 20 Aug 2024 - Approval51504/APP/2021/2474
Non-material amendment to planning permission Ref: 51504/APP/2021/1380 dated 07/06/2021 (Single storey side/rear extension involving demolition of existing conservatory) involving repositioning of the rooflight
24 ST JAMES CLOSE RUISLIP
Received 21 Jun 2021 - Refusal34423/TRE/2022/20
To carry out tree surgery including a height reduction by 4m and sides by 1.5m to One Hornbeam (T1 on application) and a crown reduction by 4m to One Hornbeam (T2 on application) both within Area 1 on TPO 399
66 COPSE WOOD WAY NORTHWOOD
Received 7 Feb 2022 - Refusal76139/APP/2021/119
Single storey rear extension, porch to front, conversion of garage to habitable use and conversion of roofspace to habitable use to include a rear dormer, Juliette balcony, front dormer and 2 x front rooflights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for an Existing Development).
80B HALFORD ROAD ICKENHAM
Received 12 Jan 2021 - Approval34218/APP/2021/3383
Demolition of existing garage and erection of single storey outbuilding in garden for use as an office and store room, and erection of a single storey rear extension.
29 MOUNT PARK ROAD EASTCOTE PINNER
Received 7 Sept 2021 - Approval79656/APP/2025/2370
Erection of a two storey rear extension.
80 GROSVENOR CRESCENT HILLINGDON UB10 9ET
Received 11 Sept 2025 - Approval16277/APP/2025/1916
Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
61 ST LAWRENCE DRIVE EASTCOTE PINNER
Received 16 Jul 2025
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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