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 dates23,479Searchable applications
447Recorded as pending
80%Approval rate · 21,800 approved or refused records
4,331Refused applications
17,469 approved · 4,331 refused · 914 withdrawn. Received dates in our records: 14 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 Counts reflect the last collected status; some records may be out of date.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
- Approval28960/APP/2021/2007
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights, conversion of roof from hip to gable end and raising of subsidiary ridge line of roof to main ridge level (Application for a Certificate of Lawful Development for a Proposed Development)
137 CORNWALL ROAD RUISLIP
Received 18 May 2021 - Approval77241/APP/2024/2916
Details submitted pursuant to Condition 12 (Selective Catalytic Reduction) of planning permission reference 77241/APP/2022/1407, dated 12-06-2023 (Full planning application for proposed attached tiered gantry structure to Unit 3 (LON 7) to provide plant and 4 no. generators).
Unit 3 CLAYFIELD WAY WEST DRAYTON UB11 1FH
Received 4 Nov 2024 - Refusal35667/APP/2023/962
Erection of new front porch.
19 CORNWALL ROAD UXBRIDGE
Received 31 Mar 2023 - Approval33423/APP/2021/2287
Single storey rear extension
48 HAWTHORNE AVENUE EASTCOTE
Received 7 Jun 2021 - Undecided19679/APP/2026/2303
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. following demolition of a shed and covered area.
99 LYNHURST CRESCENT UXBRIDGE
Received 29 Sept 2026 - Withdrawn (P)66829/APP/2023/2934
Erection of a single storey front extension and conversion of roof space to a habitable space including rear dormer and 3 new roof lights
74 LOWLANDS ROAD EASTCOTE
Received 9 Oct 2023 - Approval30823/APP/2022/2147
Enlargement of existing rear and side dormers (Application for a Certificate of Lawful Development for a Proposed Development)
32 CORWELL LANE HILLINGDON
Received 5 Jul 2022 - Approval79796/APP/2025/2932
Erection of single storey outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)
35 MELLOW LANE EAST HAYES
Received 20 Nov 2025 - Refusal78323/TRE/2026/93
TPO 327 G6 3x Lime Trees to reduce crown by up to 2m and remove over hanging branches.
140 LINDEN AVENUE RUISLIP HA4 8UB
Received 21 Apr 2026 - Approval585/APP/2022/3447
Installation of a docking station for 10 bikes
DOWDING PARK ST ANDREWS PARK ST ANDREW'S ROAD UXBRIDGE
Received 10 Nov 2022 - Refusal78449/APP/2023/3604
Conversion of roof space to habitable use to include a rear dormer with 1 rear roof light, 3 front roof lights. Erection of a single storey extension to the front, side and rear, to include erection of first floor external stairway to the rear.
62 PIPPINS CLOSE WEST DRAYTON UB7 7XH
Received 13 Dec 2023 - Refusal71916/APP/2020/4111
Two storey side extension with pitched roof
3 SHELLEY LANE HAREFIELD UB9 6HP
Received 11 Dec 2020 - Approval14805/APP/2025/792
Details pursuant to the discharge of Condition 9 (Safe and Secure Environment) of planning permission ref. 14805/APP/2024/956 dated 25/07/24 for 'Change of use of Middlesex Suite and Registrar's Office (Part Level 1 and Level 2) within the Civic Centre Complex from Class E (g) (i) / Sui Generis to Class F1 to accommodate a new public library and museum, involving minor internal and external alterations and associated works'.
CIVIC CENTRE HIGH STREET UXBRIDGE
Received 20 Mar 2025 - Refusal15845/APP/2021/731
Alteration to external landscaping works to include a drive through driveway and 2 vehicular access
23 LINKSWAY NORTHWOOD
Received 24 Feb 2021 - Refusal73298/APP/2021/2415
Details pursuant to the discharge of Conditions 17 (Privacy Screens), 18 (Terrace Screening) and 19 (Parking Allocation Scheme) of planning permission reference 73298/APP/2020/1194 (Demolition of existing buildings (Use Class B1a) and redevelopment of the site to provide a new building up to 4 storeys comprising 24 residential units (Use Class C3) and associated landscaping, amenity space, car parking, cycle parking, access and refuse).
LAND TO THE EAST SIDE OF NEWPORT ROAD HAYES UB4 8JX
Received 16 Jun 2021 - Approval54081/APP/2022/798
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights 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)
61 MORAY AVENUE HAYES
Received 9 Mar 2022 - Refusal50785/APP/2021/2964
Conversion of existing house to 2 self contained flats (1 x 2 bed, 3 persons and 1 x 2 bed, 4 persons)
11 AYLES ROAD HAYES
Received 30 Jul 2021 - Approval34218/APP/2022/728
Erection of a single storey extension to the rear
29 MOUNT PARK ROAD EASTCOTE PINNER
Received 4 Mar 2022 - Approval4899/ADV/2026/38
Installation of replacement signs to include, 1x pictorial panel to existing decorative gibbet, 1x name board, 1x fascia sign, 1x menu case, 1x entrance sign, 2x sign written house name and logos, 1x amenity board, 1x brewers board and 2x snap frames
THE THREE MAGPIES BATH ROAD SIPSON
Received 17 Jun 2026 - Refusal20416/APP/2024/314
Erection of a part single storey, part two storey extension to rear and first floor side extension. Erection of an outbuilding to rear garden.
305 LONG DRIVE RUISLIP
Received 6 Feb 2024 - Approval56505/APP/2022/487
Erection of a first floor rear extension.
13 SIPSON ROAD WEST DRAYTON MIDDLESEX UB7 9DP
Received 16 Feb 2022 - Approval79675/APP/2025/2892
Erection of rear extension, rear dormer, and roof lights to front elevation, following the demolition of existing rear conservatory
8 GLASSHOUSE CLOSE HILLINGDON UB8 3UQ
Received 17 Nov 2025 - Approval4793/APP/2024/1534
Conversion of roof space to habitable use to include 2x rear dormers, 2x front dormers with parapet detail, erection of a first floor extension to the rear with the relocation of external staircase to the rear (amended description and drawings)
242A-244A YEADING LANE HAYES
Received 7 Jun 2024 - Approval75227/APP/2021/2277
Part single; part two storey side and rear extension (following demolition of the existing two-storey side extension); hard and soft landscaping; boundary treatment; enlargement of existing dropped kerb and refuse storages.
27-29 SUTTON CLOSE EASTCOTE HA5 2JX
Received 4 Jun 2021
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.
How to search planning applicationsGuides to planning records
All planning guides
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
UK researchPublished Updated
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
UK researchPublished Updated
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.
Check collection coverageMore planning authorities in England
- London Borough of Hounslow
- London Borough of Islington
- London Borough of Lambeth
- London Borough of Lewisham
- London Borough of Merton
- London Borough of Newham