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 dates23,628Searchable applications
447Recorded as pending
80%Approval rate · 21,943 approved or refused records
4,375Refused applications
17,568 approved · 4,375 refused · 916 withdrawn. Received dates in our records: 2 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 Counts reflect the last collected status; some records may be out of date.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
- Approval54252/APP/2024/840
Erection of outbuilding to rear garden and demolition of the existing garage(Application for a Certificate of Lawful Development for a Proposed Development)
8 SKIPTON DRIVE HAYES
Received 2 Apr 2024 - Approval51119/TRE/2023/261
To carry out tree surgery - to cut back branches away from the building One Turkey Oak at T127 within TPO 7
1 SYLVANA CLOSE HILLINGDON
Received 26 Oct 2023 - No Further Action(P)78954/APP/2025/1996
Out of borough consultation from Buckinghamshire County Council for 'Outline planning application for proposed development of data centre building (Use Class B8), ancillary offices, plant and equipment, substation, new access/egress, internal road and bridge, landscaping, biodiversity and drainage features, upgrade works to the public right of way, and associated works (matter to be considered at this stage: access).'
Woodlands Park Landfill Site, Land South Of Slough Road OUTBOROUGH MIDDLESEX
Received 24 Jul 2025 - Approval3255/APP/2023/592
Retention of single storey rear extension involving demolition of existing extension, conversion of roof space to habitable use to include 1 x rear dormer, 2 x front dormers, installation of 2 x roof lights to the front roof slope and 3 x roof lights to the rear roof slope and conversion of roof from hip to gable end with alterations to fenestration (Retrospective Application).
18 ST EDMUNDS AVENUE RUISLIP
Received 1 Mar 2023 - Approval31400/TRE/2024/57
To carry out tree surgery - to reduce to previous points the large stems overhanging numbers 33 and 35 only One Weeping Willow at T26 within TPO 89
23 TUDOR WAY HILLINGDON
Received 13 Mar 2024 - Approval12797/APP/2021/3657
Loft conversion including the erection of rear dormer and 8 x roof lights.
7 HAYSTALL CLOSE HAYES
Received 28 Sept 2021 - Approval34028/TRE/2024/21
To carry out tree surgery - to crown reduce laterally by 2m and crown lift to 5m One Sycamore within Group 4 within TPO 88
21 THE AVENUE NORTHWOOD
Received 24 Jan 2024 - Approval76766/APP/2021/3531
Part single; part two storey side and rear extension (following part demolition of side garage); replacement garage door with window; new ground floor side door and window including removal and side/rear steps.
54 MARLBOROUGH AVENUE RUISLIP HA4 7NP
Received 17 Sept 2021 - Approval65107/APP/2025/1363
Erection of a single storey extension to the rear, following amendments to fenestration.
14 RAISINS HILL EASTCOTE MIDDLESEX HA5 2BS
Received 15 May 2025 - Refusal32280/APP/2023/1443
Erection of first floor extension to the rear (Application for a Certificate of Lawful Development for a Proposed Development)
52 GATEHILL ROAD NORTHWOOD
Received 16 May 2023 - Approval43969/APP/2021/4085
Erection of replacement single storey rear extension (existing conservatory extension to be demolished).
381 VICTORIA ROAD RUISLIP
Received 4 Nov 2021 - Refusal4445/APP/2020/2297
Conversion of second floor from 1 x 3 bedroom flat to 1 x 2 bedroom and 2 x one bedroom self contained flats
OAKLANDS COURT 360 CRANFORD LANE HARLINGTON UB3 5HD
Received 23 Jul 2020 - Approval2216/APP/2024/562
Temporary change of use of existing hardsurfaced carpark area associated with the existing Class F1/F2(c) (Previously Class D1/D2) to Sui Generis to allow the sale of cars.
C&L COUNTRY CLUB WEST END ROAD RUISLIP UB5 6RD
Received 4 Mar 2024 - Approval24399/APP/2024/1166
Erection of a single storey extension to the rear of existing retail shop (Class E).
37 VICTORIA ROAD RUISLIP
Received 2 May 2024 - Refusal77929/ADV/2023/15
Retrospective application for the installation of one internally illuminated fascia sign and one internally illuminated projecting sign to shopfront.
59 HIGH STREET RUISLIP HA4 7BD
Received 23 Mar 2023 - Approval78084/APP/2025/1822
Conversion of roof space to habitable use to include a rear dormer and 2 front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
32A STAR ROAD HILLINGDON UB10 0QH
Received 2 Jul 2025 - Approval57612/APP/2025/783
Erection of a single storey wraparound extension to the side and rear
90 ST MARY'S ROAD HAREFIELD
Received 19 Mar 2025 - Approval16335/APP/2024/1344
Erection of a single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development).
14 THORNTON AVENUE WEST DRAYTON
Received 20 May 2024 - Refusal (Appealed)78160/APP/2024/2562
Erection of a single storey front, rear and side extension including infill of front porch and patio to rear, following demolition of existing rear conservatory. Conversion of roof space to habitable accommodation including roof extension with conversion of roof from hip to half gable ends, rear dormer and roof lights. Alterations to front driveway, fenestration and materials.
43 ROCHESTER ROAD NORTHWOOD HA6 1NJ
Received 24 Sept 2024 - Approval21989/APP/2021/4342
Erection of a single storey rear extension
22 NORFOLK ROAD UXBRIDGE
Received 26 Nov 2021 - Approval5804/APP/2020/3794
Proposed two storey one-bedroom detached house with new crossover, associated parking, amenity space, bin space and bike store.
97 CROMWELL ROAD HAYES
Received 18 Nov 2020 - Approval35755/APP/2023/48
Details pursuant to condition 8 (noise management plan) of planning permission ref. 35755/APP/2021/4136 dated 29-04-2022 (Demolition of existing buildings and the construction of a Class E(g)ii, E(g)iii, B2 and B8 use employment unit with ancillary office accommodation, including new vehicular access, associated external yard areas, HGV and car parking, servicing, external lighting, landscaping, infrastructure and associated works)
RIVER HOUSE RIVERSIDE WAY UXBRIDGE UB8 2YF
Received 6 Jan 2023 - Prior Approval N/Req77955/APP/2023/1018
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 2.87 metres
7 WILLENHALL DRIVE HAYES UB3 2UT
Received 5 Apr 2023 - Refusal58404/APP/2024/1174
Erection of single storey side extension following demolition of detached garage.
80 SHARPS LANE RUISLIP
Received 2 May 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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