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
25,396Searchable applications
442Recorded as pending
79%Approval rate · 23,628 approved or refused records
4,852Refused applications

18,776 approved · 4,852 refused · 975 withdrawn. Received dates in our records: 27 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 Counts reflect the last collected status; some records may be out of date.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

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. Approval48951/APP/2020/4052

    Details pursuant to discharge conditions Nos. 3 (Landscaping) of planning permission Ref: 48951/APP/2020/2146 dated 19/10/2020 (Erection of a fence and shrubs involving demolition/removal of existing brick wall and existing bushes/shrubs)

    22 DEERINGS DRIVE EASTCOTE PINNER

    Received 8 Dec 2020
  2. Approval42255/APP/2022/245

    Conversion of roof space to habitable use to include a rear dormer with juliette balcony 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)

    9 WAVERLEY GARDENS NORTHWOOD

    Received 26 Jan 2022
  3. Approval47248/APP/2021/3697

    Conversion of existing garage into habitable room.

    43 JUNIPER WAY HAYES

    Received 29 Sept 2021
  4. Approval53514/APP/2025/3096

    Erection of a first floor extension to the rear

    56 DAWLEY ROAD HAYES

    Received 10 Dec 2025
  5. Prior Approval N/Req56397/APP/2022/2097

    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 3.80 metres, and for which the height of the eaves would be 2.90 metres

    124 WOODLANDS AVENUE RUISLIP

    Received 1 Jul 2022
  6. Approval35625/APP/2020/2218

    Single storey side and rear extension

    420 FIELD END ROAD RUISLIP

    Received 17 Jul 2020
  7. Undecided80224/APP/2026/2017

    Erection of a single storey rear extension, following the removal of the exiting rear extension

    102 BATH ROAD HEATHROW UB3 5AL

    Received 12 Aug 2026
  8. Approval78792/APP/2024/1211

    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 an Existing Development)

    75 HALSWAY HAYES

    Received 7 May 2024
  9. Approval77097/APP/2026/1917

    Details pursuant to the partial discharge of Condition 11i(b&c) (Contaminated Land) of planning permission ref. 77097/APP/2024/2693, dated 09-07-25 (Erection of a two storey, 2- bed attached dwelling with associated cycle storage and amenity space)

    13 OAK AVENUE WEST DRAYTON UB7 9EP

    Received 3 Aug 2026
  10. Approval18156/APP/2020/4242

    Single storey rear extension

    34 CASTLETON ROAD RUISLIP

    Received 21 Dec 2020
  11. Approval54222/APP/2022/1312

    Proposed single storey rear extension

    31 THE GROVE ICKENHAM

    Received 21 Apr 2022
  12. Approval3708/APP/2023/2655

    Erection of outbuilding to rear garden. (Application for a Certificate of Lawful Development for a Proposed Development)

    8 FORE STREET EASTCOTE PINNER

    Received 11 Sept 2023
  13. Approval77734/APP/2023/332

    Erection of a single storey rear outbuilding for use as a gym/childrens play area and storage

    18 DOUGLAS CRESCENT HAYES UB4 9BT

    Received 3 Feb 2023
  14. Approval77178/APP/2022/1041

    Erection of a single storey rear extension.

    68 ALANDALE DRIVE PINNER HA5 3UY

    Received 28 Mar 2022
  15. Withdrawn (P)9723/APP/2023/1060

    Erection of a single storey rear outbuilding/garage

    28 STATION ROAD COWLEY UB8 3AA

    Received 12 Apr 2023
  16. Approval60403/APP/2020/2902

    Conversion of roof space to habitable use to include a rear dormer, 1 front roof light and erection of a single storey rear extension including demolition of existing garage

    23 GLEDWOOD AVENUE HAYES

    Received 11 Sept 2020
  17. Refusal884/APP/2021/1414

    Installation of new shopfront, entrance door, extractor duct to rear and replacement of AC and cold room condensors

    60 STATION ROAD HAYES

    Received 9 Apr 2021
  18. Approval10038/APP/2021/489

    Conversion of roofspace to habitable use to include a rear dormer roof extension, juliette balcony and 3 x front rooflights (Application for a Certificate of Lawful Development for a Proposed Development)

    125 CORNWALL ROAD RUISLIP

    Received 8 Feb 2021
  19. Approval74890/APP/2024/1597

    Conversion of roof space to habitable use to include a rear dormer, 3 front roof lights and 2 new gable end windows (Application for a Certificate of Lawful Development for a Proposed Development)

    77 WORCESTER ROAD COWLEY UB8 3TH

    Received 18 Jun 2024
  20. Approval20394/APP/2020/2681

    Conversion of roof space to habitable use to include a rear dormer, 4 front rooflights, 1 side rooflight and conversion of both sides of roof from hip to part gable end (Application for a Certificate of Lawful Development for a Proposed Development)

    37 THE GREENWAY ICKENHAM

    Received 25 Aug 2020
  21. Approval72889/APP/2020/3818

    Conversion of roofspace to habitable use to include 2 side dormers, 1 rear dormer and 1 front rooflight (Application for a Certificate of Lawful Development for a Proposed Development)

    12 GRASMERE AVENUE RUISLIP

    Received 19 Nov 2020
  22. Approval1661/APP/2023/2883

    Part two storey, part single storey rear extension, conversion of basement to habitable use and conversion of 1 x 5 bed dwelling to 1 x 1-bed and 1 x 2-bed dwellings with associated parking and amenity space.

    63 HARLINGTON ROAD HILLINGDON

    Received 3 Oct 2023
  23. Refusal23697/APP/2021/2538

    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 3.6 metres, and for which the height of the eaves would be 2.78 metres.

    9 ANGUS DRIVE RUISLIP

    Received 25 Jun 2021
  24. Approval79673/APP/2025/2992

    Request for approval of Plans and Specifications for reconfiguration of previously approved works within the Colne Valley Viaduct Groundworks South Area 1, on land to the north of Moorhall Road and south east of Pier 30 and Korda Lake, in accordance with Paragraph 3 of Schedule 17 to the High Speed Rail (London - West Midlands) Act 2017.

    COLNE VALLEY VIADUCT MOORHALL ROAD HAREFIELD

    Received 26 Nov 2025

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

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How to search planning applications

Guides to planning records

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  • 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.

  • 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.

  • 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.

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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