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 dates21,084Searchable applications
448Recorded as pending
81%Approval rate · 19,512 approved or refused records
3,664Refused applications
15,848 approved · 3,664 refused · 850 withdrawn. Received dates in our records: 20 Jan 2021 to 5 Oct 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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
- Approval5756/APP/2021/1280
Conversion of roofspace to habitable use to include a rear dormer and gable end window (Application for a Certificate of Lawful Development for a Proposed Development).
18 WILLOW GARDENS RUISLIP
Received 30 Mar 2021 - Approval27983/APP/2021/1261
Single storey side/rear extension and conversion of roofspace to habitable use to include 6 x side dormers
16 LEES ROAD HILLINGDON
Received 29 Mar 2021 - Undecided5500/APP/2026/2277
Hip to gable loft conversion incorporating a rear dormer extension (Application for a Certificate of Lawful Development for a Proposed Development)
2 MORAY AVENUE HAYES
Received 24 Sept 2026 - Approval79778/APP/2025/2885
Conversion of roof space to habitable use to include rear dormer, and 3x front roof lights (Application for a Certificate of Lawful Development for a proposed Development)
94 VICTORIA AVENUE HILLINGDON UB10 9AJ
Received 17 Nov 2025 - Refusal (Appealed)16477/APP/2025/1616
Conversion of single dwelling house into 1no. 2-bedroom and 1no. 1-bedroom flats with amendments to rear fenestration, associated parking, amenity space, bin storage and bicycle storage (amended description).
60 LANSBURY DRIVE HAYES
Received 10 Jun 2025 - Approval78567/APP/2024/369
Conversion of roof space to habitable use to include a rear dormer with juliette balcony, 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
77 GOSHAWK GARDENS HAYES UB4 8LB
Received 12 Feb 2024 - Approval64208/APP/2025/2822
Erection of an additional storey and a single storey side extension.
Tilers Yard, Unit 1 East Way Ruislip HA4 8GG
Received 6 Nov 2025 - Refusal (Appealed)35361/APP/2023/1736
Erection of a front porch infill, part single storey and part double storey side and rear extension with amendments to fenestration. Conversion of garage to habitable room.
TIMBERS 26 GATEHILL ROAD NORTHWOOD HA6 3QQ
Received 15 Jun 2023 - Approval22147/APP/2022/861
Erection of a single storey side and rear extension.
36 DAYMER GARDENS EASTCOTE PINNER
Received 14 Mar 2022 - Approval77488/APP/2022/3263
Erection of a proposed outbuilding with PV panels, following demolition of existing detached garage; erection of single storey rear extension with patio to rear, PV panels to main roof and roof light to existing side extension
66 SHARPS LANE RUISLIP HA4 7JQ
Received 25 Oct 2022 - Approval15095/APP/2025/2096
Erection of part single storey, part two storey side and rear extensions, a front porch, and conversion of roof space to habitable use to include a rear dormer and 5no. roof lights.
13 HIGHFIELD DRIVE ICKENHAM
Received 4 Aug 2025 - Approval77042/APP/2022/391
Conversion of roofspace to habitable use to include hip to gable extension, gable end window, rear dormer and 2 x front facing rooflights (Application for a Certificate of Lawful Development for a Proposed Development)
4 WEST WALK HAYES UB3 3JH
Received 9 Feb 2022 - No Objection78087/APP/2023/1650
Consultation under Class F of Part 8 of Schedule 2 of the General Permitted Development Order 2015 (Class F of the GPDO 2015) in respect of the installation of two catering units and a prayer room at London Heathrow Airport.
LAND AT NORTHERN PERIMETER ROAD WEST HEATHROW AIRPORT
Received 5 Jun 2023 - Approval49595/APP/2026/208
Erection of single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)
47 COPPERFIELD AVENUE HILLINGDON
Received 26 Jan 2026 - Approval14626/APP/2024/72
A Prior Notification Application submitted under Schedule 2, Part 11, Class B of the Town and Country Planning (General Permitted Development) (England) Order (2015) (as amended) for the demolition of 2no. buildings.
Former Builders Yard adjacent to Eastcote station FIELD END ROAD RUISLIP
Received 11 Jan 2024 - Approval78349/APP/2024/190
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)
22 THE UPLANDS RUISLIP HA4 8QN
Received 24 Jan 2024 - Approval16601/APP/2022/1397
Details pursuant to the discharge of Conditions 5 (Arboricultural method statement) and 6 (Landscape scheme) of planning permission ref. 16601/APP/2021/3770, dated 11 February 2022 (Single storey side and rear extension and the demolition of the existing garages)
1 CHESTER ROAD NORTHWOOD
Received 28 Apr 2022 - Approval20168/APP/2023/1041
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 (Application for a Certificate of Lawful Development for a Proposed Development).
8 MAPLE ROAD HAYES
Received 6 Apr 2023 - Approval31005/APP/2023/1607
Erection of a single storey extension to side following demolition of existing structure (Application for a Certificate of Lawful Development for a Proposed Development)
84 EAST ROAD WEST DRAYTON
Received 1 Jun 2023 - Approval76466/APP/2021/2116
Erection of single storey rear extension and front porch
45 PENDULA DRIVE HAYES UB4 9PG
Received 25 May 2021 - Approval1175/APP/2024/2396
Retention of outbuilding to the rear garden.
31 DENECROFT CRESCENT HILLINGDON
Received 5 Sept 2024 - Undecided41632/APP/2025/2468
Hybrid application consisting of Phase (1) Full planning permission for the creation of a mixed use sustainable vehicle parking facility (Sui Generis) and food and beverage unit (Class E), alongside ancillary welfare and staff buildings, and other supporting infrastructure and site levelling; and Phase (2) Outline planning permission for a future extension to the facility, with all associated matters reserved except for access.
NCP CAR PARK BATH ROAD SIPSON UB7 0DU
Received 19 Sept 2025 - Refusal4521/TRE/2023/80
To carry out tree surgery including a 30% pollard to Nine Limes (T1-T4 & T6-T10 on application) and to Crown reduce by 30% One Oak (T5 on application) all within Woodland 4 on TPO 1.
PARKWOOD FARM SUMMERHOUSE LANE HAREFIELD UB9 6HS
Received 14 Apr 2023 - Approval27685/APP/2024/298
Erection of a stepped single storey rear extension
30 GREAT CENTRAL AVENUE RUISLIP
Received 5 Feb 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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