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 dates23,420Searchable applications
447Recorded as pending
80%Approval rate · 21,743 approved or refused records
4,314Refused applications
17,429 approved · 4,314 refused · 913 withdrawn. Received dates in our records: 17 Jul 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 Counts reflect the last collected status; some records may be out of date.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
- Approval28890/APP/2021/1495
Single storey rear extension.
11 ETON ROAD HARLINGTON
Received 16 Apr 2021 - Approval79455/TRE/2025/116
TPO 327 G2 1 x Field Maple to reduce spread by removing 2m
41 COLUMBIA AVENUE RUISLIP HA4 9SU
Received 28 Apr 2025 - Approval11824/APP/2022/977
Erection of outbuilding to rear garden
139A SWAKELEYS ROAD ICKENHAM
Received 22 Mar 2022 - Approval31427/APP/2023/2554
Erection of a new dwelling following the demolition of the existing dwelling.
10 OLD HATCH MANOR RUISLIP
Received 30 Aug 2023 - Approval78430/TRE/2023/296
To carry out tree surgery - to crown reduce by 15% One Sycamore at T18 within TPO 41
18 MALLARD WAY NORTHWOOD HA6 2GG
Received 5 Dec 2023 - Approval24825/APP/2025/74
Details pursuant to the discharge of Conditions 3 (materials and external surfaces), 5 (demolition and construction management plan), 7 (heating system details) and 11 (Step Free Access) of planning permission ref. 24825/APP/2023/81, dated 11-10-2024 (Erection of a replacement dwelling)
39 PARKFIELD ROAD ICKENHAM
Received 13 Jan 2025 - Approval69331/APP/2026/1724
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights, conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
22 CRANBORNE WAYE HAYES
Received 9 Jul 2026 - Approval56865/APP/2021/732
Details pursuant to Condition 10 (i)(a and b) (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 24 Feb 2021 - Approval10815/APP/2022/3171
Erection of a single storey side and rear extension, with a front porch extension
22 DRAKES DRIVE NORTHWOOD
Received 17 Oct 2022 - Approval8557/APP/2025/1268
Conversion of roof space to habitable use to include a rear dormer, 2no. front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).
18 THE FAIRWAY RUISLIP
Received 6 May 2025 - Approval25212/APP/2021/2911
First floor side/rear extension
25 WEST END ROAD RUISLIP
Received 27 Jul 2021 - Approval78764/APP/2024/3127
Erection of a part single storey, part two storey side and rear extension, following demolition of existing rear conservatory. Erection of single storey front extension, installation of raised patio to rear and conversion of existing garage to habitable use. Conversion of roof space to habitable use to include rear dormer, 2 x front facing roof lights and 1 x side facing roof light.
184 JOEL STREET NORTHWOOD
Received 27 Nov 2024 - Approval550/APP/2023/1007
Details pursuant to the discharge of Condition 4 (landscape scheme) of planning permission ref. 550/APP/2018/2262, dated 24-02-2022 (Two storey, 3-bed attached dwelling with associated parking and amenity space, single storey rear extension 2 front rooflights and installation of vehicular crossover to front)
376 BALMORAL DRIVE HAYES
Received 4 Apr 2023 - Approval23684/APP/2022/1551
Conversion of rear garage into habitable space; parapet to the front of the existing rear outbuilding; replacement of front existing doors with new sliding doors; new side facing windows (following removal of side door); replaced with two new windows; new side boundary brick and concrete ramp.
12 HILLINGDON HILL HILLINGDON
Received 12 May 2022 - Approval43938/APP/2025/2710
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 2.80 metres.
129 LINDEN AVENUE RUISLIP
Received 23 Oct 2025 - Refusal32265/APP/2021/1437
Demolition of buildings and erection of new 2 storey building containing 3 dwellings, parking and associated facilities including alterations to existing buildings
78 HIGH STREET NORTHWOOD
Received 12 Apr 2021 - Approval23469/APP/2021/3340
Details pursuant to Condition 9 (Sustainable Water Management and Water Efficiency) of Planning Permission ref. 23469/APP/2020/3612 dated 05/08/21 for the Erection of a 3-bed detached bungalow with habitable roofspace involving parking and amenity space
170 HAREFIELD ROAD UXBRIDGE
Received 2 Sept 2021 - Approval58155/TRE/2023/85
To carry out tree surgery including a crown reduction by 2m (3m reduction of the three lowest branches overhanging the garden of 20 Curzon Place) and a crown thin by 15% to one Oak T6 on TPO 341A
7 HORNS END PLACE PINNER
Received 25 Apr 2023 - Approval28577/APP/2024/147
Erection of a single storey extension to the side and rear following the partial demolition of the existing garage.
44 FAIRWAY AVENUE WEST DRAYTON
Received 22 Jan 2024 - Approval18579/APP/2024/2022
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights. (Application for a Certificate of Lawful Development for a Proposed Development).
80 BOTWELL LANE HAYES
Received 29 Jul 2024 - Refusal76144/APP/2023/1592
Non-material amendment to planning permission ref. 51222/APP/2020/3207 dated 21/12/2020 (Single storey rear extension including demolition of existing extension) to re-position windows on the northeast elevation, and re-position and reduce in size a window on the southwest elevation
Copse Wood House 7 PINE TREES DRIVE ICKENHAM
Received 30 May 2023 - Approval45578/APP/2026/1314
Amendments to fenestration to include re-spraying of windows and doors, replacement of existing doors and presenter door, retaining timber walls, re-levelling ground to the entrance access, and new road markings and DOT signage.
McDONALDS RESTAURANT LTD, 15 MONDIAL WAY HARLINGTON
Received 26 May 2026 - Prior Approval N/Req78794/APP/2024/1323
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 2.92 metres, and for which the height of the eaves would be 2.62 metres
153 COWLEY ROAD UXBRIDGE UB8 2AJ
Received 20 May 2024 - Approval57616/APP/2022/514
Erection of a two storey side extension
22 BRAUNSTON DRIVE HAYES
Received 17 Feb 2022
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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