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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 dates
25,653Searchable applications
441Recorded as pending
79%Approval rate · 23,876 approved or refused records
4,911Refused applications

18,965 approved · 4,911 refused · 983 withdrawn. Received dates in our records: 7 Jan 2020 to 5 Oct 2026. Most recent record check: 14 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026
Planning 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

  1. Prior Approval N/Req76090/APP/2020/4123

    Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 2.95 metres.

    24 DOUGLAS CRESCENT HAYES UB4 9BT

    Received 13 Dec 2020
  2. Approval75796/APP/2020/2520

    Conversion of garage to habitable use and porch to front

    4 WILLENHALL DRIVE HAYES UB3 2UT

    Received 11 Aug 2020
  3. Undecided78364/APP/2026/2041

    Variation of Condition 2 (Approved Plans) of planning permission ref. 78364/APP/2024/2722, dated 04-02-2025 (Change of use from Use Class E to Use Class C3 (dwellinghouses) and the construction of a part three and part four-storey residential apartment with three two-bedroom units and four one-bedroom units, following the demolition of the existing building) to [demolish the sub station and landscaping]

    Conex House 148 FIELD END ROAD EASTCOTE PINNER HA5 1RJ

    Received 17 Aug 2026
  4. Refusal61161/APP/2024/2391

    Erection of a part single storey, part two storey wraparound extension to the side and rear.

    413 LANSBURY DRIVE HAYES MIDDLESEX

    Received 5 Sept 2024
  5. Approval5369/APP/2025/2641

    Retention and extension of an outbuilding (Part-retrospective Application) (revised proposal description)

    7 WENTWORTH CRESCENT HAYES

    Received 13 Oct 2025
  6. Approval3800/APP/2024/2691

    Erection of a single storey rear extension.

    11 WILLOW GROVE RUISLIP

    Received 11 Oct 2024
  7. Prior Approval N/Req57780/APP/2025/582

    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 BARNHILL LANE HAYES MIDDLESEX UB4 9HD

    Received 3 Mar 2025
  8. Refusal45069/APP/2021/2073

    Conversion of dwelling into 1 x 1-bed and 1 x 2-bed self-contained flats with associated parking and amenity space

    141 GROSVENOR AVENUE HAYES

    Received 21 May 2021
  9. Approval76582/APP/2021/2715

    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 with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)

    23 DOWN BARNS ROAD RUISLIP HA4 0NQ

    Received 10 Jul 2021
  10. Approval30339/ADV/2021/14

    Installation of 1 internally illuminated fascia sign and 1 hanging sign

    48 THE BROADWAY JOEL STREET NORTHWOOD

    Received 27 Apr 2021
  11. Approval43885/APP/2020/3093

    Single storey rear extension

    5 CHERRY CLOSE RUISLIP

    Received 30 Sept 2020
  12. Refusal34512/APP/2024/593

    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. Erection of a front porch and single storey extension to rear (Application for a Certificate of Lawful Development for a Proposed Development)

    23 MANSFIELD DRIVE HAYES

    Received 6 Mar 2024
  13. Approval12853/TRE/2020/366

    1no. Raywood ash - fell 2no. Raywood Ash - reduce crown to 4m and remove broken limbs/stub ends 1no. poplar - remove branch 19no. Leyland cypress - fell 1no. silver maple - Re pollard 1no. London plane - Re pollard And in the validation letter advise them deadwood removal does not require an application.

    HAYES PARK HAYES END ROAD HAYES

    Received 15 Dec 2020
  14. Approval77188/APP/2022/1085

    Erection of a single storey rear extension with flat roof

    212b COLDHARBOUR LANE HAYES UB3 3HQ

    Received 1 Apr 2022
  15. Approval45949/APP/2025/632

    Erection of a front extension, following the conversion of garage to habitable accommodation

    40 HILLSIDE GARDENS NORTHWOOD

    Received 10 Mar 2025
  16. Prior Approval N/Req47929/APP/2022/1999

    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 3.50 metres, and for which the height of the eaves would be 3.00 metres

    64 PINE GARDENS RUISLIP

    Received 27 Jun 2022
  17. Approval1331/APP/2022/1966

    Details pursuant to the partial discharge of Condition 83 (Noise - Unit 4) of planning permission ref. 1331/APP/2021/751, dated 10/11/2021 (Section 73 application seeking a variation to Condition 61 (Approved Drawings) of planning permission ref: 1331/APP/2019/1666 dated 11-09-20 (Section 73 application to vary Condition 9 (Residential Condition - Approved Plans) of planning permission ref: 1331/APP/2017/1883 dated 28/06/2018 (Part demolition of existing factory buildings and associated structures, and redevelopment to provide residential dwellings (Use Class C3), office, retail, community and leisure uses (Use Class A1/A3/A4/B1/B8/D1/D2), commercial floorspace (Use Classes B1c/B2/B8) and Data Centre (Sui Generis), amenity and playspace, landscaping, allotments, access, service yards, associated car parking and other engineering works) (as amended by application ref: 1331/APP/2020/50 dated 06/02/20)).

    Unit 4, Former Nestle Factory NESTLES AVENUE HAYES UB3 4RF

    Received 20 Jun 2022
  18. Approval75147/APP/2020/2947

    Part two storey, part single storey rear extension and alterations to hardstanding

    74 ADDISON WAY NORTHWOOD HA6 1SZ

    Received 16 Sept 2020
  19. Refusal27431/TRE/2020/376

    To carry out tree surgery including a crown reduction by 3m to One Oak T31 on TPO 85A

    4 ARDEN MHOR PINNER

    Received 30 Dec 2020
  20. Refusal77246/APP/2026/456

    Change of use from Class C3 (dwellinghouse) to Class C4 (small HMO for up to 5-persons)

    70 BRACKENBRIDGE DRIVE RUISLIP HA4 0LZ

    Received 23 Feb 2026
  21. Approval18444/APP/2024/3071

    Conversion of roof space to habitable use to include a rear dormer, 3 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)

    26 CROSIER WAY RUISLIP

    Received 22 Nov 2024
  22. Approval75319/APP/2020/2167

    Single storey side extension

    59A EXMOUTH ROAD RUISLIP HA4 0UN

    Received 14 Jul 2020
  23. Refusal (Appealed)70467/APP/2021/1223

    Conversion of garage to habitable use for use as an annex with alterations to elevations (Application for a Certificate of Lawful Development for a Proposed Development).

    COPSE COTTAGE RICKMANSWORTH ROAD NORTHWOOD HA6 2QN

    Received 26 Mar 2021
  24. Withdrawn (P)6616/APP/2021/4540

    Variation of Condition 2 (Accordance with Approved Plans) of planning permission ref. 6616/APP/2019/3268, dated 02/10/2020 (Demolition of the existing car showroom building and the construction of a three-storey building with 7 residential units (6 x 2-bed, 1 x 1-bed), together with the creation of a new vehicular access point, car parking, landscaping and associated works) to allow for the increase of units to 9 units comprising, 4no. 2 bedroom (4P) maisonettes, 1no. 1 bedroom (2P) maisonettes and 4no. 1 bedroom (1P) flats; the height of the building has been raised by 450mm; alterations to fenestration including an obscured glazed to top floor balconies.

    LAND REAR OF 122-123 HIGH STREET UXBRIDGE UB8 1JT

    Received 15 Dec 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching 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 applications

Guides to planning records

All planning guides

  • 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.

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  • 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.

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  • 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.

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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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