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 dates22,547Searchable applications
449Recorded as pending
81%Approval rate · 20,914 approved or refused records
4,072Refused applications
16,842 approved · 4,072 refused · 886 withdrawn. Received dates in our records: 29 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 Counts reflect the last collected status; some records may be out of date.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
- Approval9011/APP/2025/2502
Removal of existing generator and associated equipment serving Substations 2 and 3, and installation of new replacement generators with associated works.
HAREFIELD HOSPITAL HILL END ROAD HAREFIELD MIDDLESEX UB9 6JH
Received 26 Sept 2025 - Approval44772/APP/2025/1997
Conversion of garage into a habitable space, including amendments to fenestration.
1 CHESTWOOD GROVE HILLINGDON
Received 24 Jul 2025 - Withdrawn (P)4000/APP/2022/3459
Erection of a part single storey, part double storey rear extension, first floor side extension, double storey front extension, new crown roof and rear facing dormer extensions.
252 SWAKELEYS ROAD ICKENHAM
Received 13 Nov 2022 - Withdrawn (P)18878/APP/2023/1718
Erection of a single storey side extension, first floor rear extension and internal alterations to public house (Part retrospective application).
THE GARDENERS ARMS PH, 119 PARK ROAD UXBRIDGE
Received 14 Jun 2023 - Refusal66228/APP/2023/2465
Erection of a two storey extension to the front and side of the dwelling and new front door.
33 RESERVOIR ROAD RUISLIP HA4 7TT
Received 17 Aug 2023 - Approval49618/APP/2025/2950
Erection of first floor side extension, ground floor rear extension to the existing side garage, and conversion of existing side garage into habitable use.
16 DORSET CLOSE HAYES
Received 21 Nov 2025 - Withdrawn (P)49177/APP/2023/1072
Conversion of garage into habitable space, first floor extension over front entrance, part first floor/part two storey side extensions, part single storey/part two storey rear extension, loft conversion with rear dormers, side roof lights and removal of chimney stack, alterations to fenestration and solar panels to south facing roof.
5 MOOR PARK ROAD NORTHWOOD
Received 12 Apr 2023 - Approval66378/APP/2025/1594
Erection of a first floor rear roof extension. Installation of 7no. roof light windows. Raising of existing ridge height by 500mm.
13 STANLEY ROAD NORTHWOOD
Received 10 Jun 2025 - Approval40614/APP/2024/740
Erection of a single storey extension to the side/rear following the demolition of the existing store. Erection of a front porch.
24 WARREN DRIVE RUISLIP
Received 19 Mar 2024 - Withdrawn (P)30932/APP/2025/1343
Variation of Condition 2 (approved plans) of planning permission ref. 30932/APP/2025/543, dated 24-04-2025 (Erection of a single storey to the side and rear. Extension and conversion of roof space to habitable use to include extension of existing roof over rear extension, 4 no. side facing dormers.) to include the addition of a single storey rear extension.
90 HALFORD ROAD ICKENHAM
Received 13 May 2025 - Refusal23251/APP/2022/477
Demolition of existing detached property and erection of a new build comprising of 5 self-contained flats.
20 CHURCH ROAD UXBRIDGE
Received 15 Feb 2022 - Approval47112/APP/2023/2009
Conversion of roof space to include rear dormer, 4 front roof lights and 1 rear roof light to existing flat roof.
320 HIGH STREET HARLINGTON
Received 7 Jul 2023 - Approval40229/APP/2021/2600
Part single storey, part two storey rear extension
19 WHITBY ROAD RUISLIP
Received 30 Jun 2021 - Prior Approval N/Req79108/APP/2024/2758
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 3.00 metres, and for which the height of the eaves would be 3.00 metres.
5 BLUNTS AVENUE SIPSON UB7 0DR
Received 16 Oct 2024 - Refusal23137/TRE/2022/2
To carry out tree surgery, including to cut back to boundary branches overhanging the garden of 15 Briarwood Drive to Two Oaks, T2 and T3 on TPO 691
16 BRIARWOOD DRIVE NORTHWOOD
Received 2 Jan 2022 - Approval8499/APP/2022/2610
Part single; part two-storey side/rear extension (following removal of rear extensions); hip to gable end extension; rear dormer roof extension; pitched roof to existing flat roof two-storey side extension and front rooflights to create two separate residential dwellings; removal of rear outbuildings; sub-division of the site; private amenity spaces; hard and soft landscaping; boundary treatment; retention of rear garage; car parking and cycle/refuse storages.
63 VICTORIA AVENUE HILLINGDON
Received 17 Aug 2022 - Refusal (Appealed)76034/APP/2020/4095
Conversion of roof space to habitable use to include, increase in ridge height, addition of pitched roof over flat roof element, a rear dormer and 1 front rooflight
96 BOURNE AVENUE HAYES UB3 1QP
Received 9 Dec 2020 - Refusal45334/APP/2020/3213
Two storey side extension and part two storey, part single storey rear extension
69 HARVEY ROAD HILLINGDON
Received 7 Oct 2020 - Refusal (Appealed)56582/APP/2022/3337
Raising of roof to provide habitable accommodation within loft space, to include a double hip to gable conversion, roof lights, front and rear dormers, and erection of a two-storey side/rear extension, rear patio and external alterations to property (Revised description, no changes to the submitted drawings)
2 HALFORD ROAD ICKENHAM
Received 1 Nov 2022 - Refusal28154/APP/2022/1113
Erection of first floor and roof level extensions including a new staircase and dormer. Conversion of upper floors into two self contained units.
767 UXBRIDGE ROAD HAYES
Received 4 Apr 2022 - Approval68489/APP/2021/2859
Single storey rear extension
49 AVONDALE DRIVE HAYES
Received 21 Jul 2021 - Approval75277/APP/2020/3940
Single storey rear extension including demolition of existing conservatory
8 HALLOWELL ROAD NORTHWOOD HA6 1DW
Received 30 Nov 2020 - Refusal42228/APP/2022/1505
Change of use from offices (Use Class E(g)(i)) to residential use (Use Class C3) to provide 22 residential units (Application for Prior Approval under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended)).
Salamander Quay PARK LANE HAREFIELD UB9 6NZ
Received 18 May 2022 - Approval61125/APP/2024/1109
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights, conversion of roof from hip to gable end with new gable end window, and the erection of outbuilding to side garden following the demolition of existing garage (Application for a Certificate of Lawful Development for a Proposed Development).
16 WENTWORTH CRESCENT HAYES MIDDLESEX
Received 28 Apr 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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