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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
25,325Searchable applications
442Recorded as pending
79%Approval rate · 23,560 approved or refused records
4,831Refused applications

18,729 approved · 4,831 refused · 973 withdrawn. Received dates in our records: 3 Feb 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 Counts reflect the last collected status; some records may be out of date.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. Refusal62697/APP/2021/1791

    Two storey side extension and part two storey part single storey rear extension

    159 WINDSOR AVENUE HILLINGDON MIDDX UB10 9BA

    Received 4 May 2021
  2. Approval28262/APP/2026/419

    Conversion of roof space to habitable use to include hip to gable extension, rear dormer, gable end window, and 3 x front roof lights, following the removal of the chimney (Application for a Certificate of Lawful Development for a proposed Development)

    39 SPENCER AVENUE HAYES

    Received 17 Feb 2026
  3. Approval62030/TRE/2020/253

    To carry out tree surgery including a Crown lift to 3-4m by removing epicormic growth to One Yew T4 on TPO 4

    4 SWAKELEYS ROAD ICKENHAM

    Received 16 Sept 2020
  4. Approval62397/TRE/2026/32

    TPO 7 T202 1x Oak to remove.

    140B VINE LANE HILLINGDON

    Received 13 Feb 2026
  5. Prior Approval N/Req21356/APP/2020/513

    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 3 metres

    254 WEST END ROAD RUISLIP HA4 6DX

    Received 17 Feb 2020
  6. Approval28022/APP/2022/2511

    Erection of two storey side and rear extensions, part single storey rear extension, single storey front extension and demolition of existing garage.

    31 SWAKELEYS DRIVE ICKENHAM

    Received 10 Aug 2022
  7. Withdrawn (P)77156/APP/2022/948

    Conversion of roof space to habitable use to include a rear dormer with 3 front roof lights, conversion of roof from hip to gable end and installation of side soil vent pipe (Application for a Certificate of Lawful Development for a Proposed Development)

    97 LONG LANE ICKENHAM

    Received 22 Mar 2022
  8. Approval49655/APP/2021/3009

    Single storey rear extension

    90 DICKENS AVENUE HILLINGDON

    Received 4 Aug 2021
  9. Approval58492/APP/2020/4185

    Conversion of garage to habitable use to include alterations of front elevation.

    81 KNOLL CRESCENT NORTHWOOD MIDDLESEX HA6 1HH

    Received 16 Dec 2020
  10. Approval79286/APP/2025/478

    Conversion of roof space to habitable use to include a rear dormer, conversion of roof from hip to gable end with new gable end window and 3 front facing roof lights. Erection of a front porch (Application for a Certificate of Lawful Development for a Proposed Development).

    25 STORMOUNT DRIVE HAYES UB3 1RG

    Received 21 Feb 2025
  11. Refusal27914/ADV/2024/48

    Installation of 1no. non-illuminated fascia sign (Retrospective application).

    23 HIGH STREET UXBRIDGE

    Received 10 Oct 2024
  12. Refusal21305/APP/2020/3610

    Installation of a window to the side (Retrospective)

    80 SEATON GARDENS RUISLIP

    Received 28 Oct 2020
  13. Approval10885/APP/2025/2749

    Erection of single storey rear extension with a side window, following the demolition of existing rear conservatory.

    33 LOTHIAN AVENUE HAYES

    Received 28 Oct 2025
  14. Prior Approval N/Req9217/APP/2020/2811

    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 4 metres, and for which the height of the eaves would be 2.58 metres

    61 GRANVILLE ROAD HILLINGDON

    Received 4 Sept 2020
  15. Approval77840/APP/2023/2558

    Erection of a single storey rear extension and conversion of roofspace to habitable use including 2 rear dormers and 3 front facing rooflights

    24 LAWRENCE GROVE UXBRIDGE UB10 0FF

    Received 30 Aug 2023
  16. Refusal18794/APP/2023/1934

    Erection of an attached 2-bedroom dwelling

    1 SEDGWICK AVENUE HILLINGDON

    Received 3 Jul 2023
  17. Approval19024/APP/2024/769

    Erection of a single storey rear extension following the demolition of the existing extension and garage.

    45 HARLINGTON ROAD HILLINGDON

    Received 22 Mar 2024
  18. Approval66841/APP/2021/3104

    Two storey side and rear extension, and single storey rear extension

    70 HAIG ROAD HILLINGDON

    Received 12 Aug 2021
  19. Approval4058/APP/2025/2129

    Section 73 application to vary Condition 1 (Temporary Time Limit) of application reference 4058/APP/2021/3691 dated 11-07-2022. Section 73 application to vary Condition 2 (Approved Plans) of application reference 4058/APP/2020/1003 (Construction of a new 90-bed three-storey ward building (Ward Building South); an additional two storeys to be constructed on the site of the ground-floor 28-bed Decant Ward Building (Ward Building North) and the provision of 117 replacement car parking spaces, involving the demolition of the existing Paediatric building and relocation of the existing waste compound and its associated parking) to amend the elevations of Ward Building South.

    Hillingdon Hospital PIELD HEATH ROAD HILLINGDON UB8 3NN

    Received 7 Aug 2025
  20. Approval43243/APP/2024/1524

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

    35 SNOWDEN AVENUE HILLINGDON

    Received 7 Jun 2024
  21. Approval76795/APP/2026/633

    Details pursuant to the partial discharge of Condition 29 parts C and D for the Otterfield Road phase only, of planning permission ref. 76795/APP/2023/2503 dated 14-09-2023 for 'Demolition of existing Yiewsley Library Building and the erection of a new residential building on the Yiewsley Library site (Falling Lane) and the erection of a new mixed use building on the former Yiewsley Swimming Pool site (Otterfield Road), with a replacement library at ground floor level, residential uses above and new pedestrian access off of the High Street'. Detailed Description: Demolition of existing Yiewsley Library Building and the erection of a 5-storey residential building, comprising 50 dwellings, with 28 undercroft parking spaces (13 for residential and 15 for use by Rabbsfarm Primary School). The Otterfield Road site proposes the erection of a 5-storey building, comprising 45 dwellings, with 25 car parking spaces (23 for residential and 2 for library users))

    LAND AT YIEWSLEY LIBRARY & FORMER YIEWSLEY POOL FALLING LANE OTTERFIELD ROAD YIEWSLEY UB7 8AB

    Received 11 Mar 2026
  22. Approval34843/APP/2026/1525

    Erection of part single part two storey front, side and rear extensions, and conversion of roof space to habitable use including 1 no side dormer and 2no. rear dormers.

    33 CEDARS DRIVE HILLINGDON

    Received 18 Jun 2026
  23. Refusal49834/APP/2021/488

    Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with gable end window and alterations to fenestration (Application for a Certificate of Lawful Development for a Proposed Development)

    24 CARDINAL ROAD RUISLIP

    Received 8 Feb 2021
  24. Approval25520/APP/2021/2220

    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)

    138 WEST END ROAD RUISLIP

    Received 1 Jun 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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    Published 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.

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