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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
32,552Searchable applications
509Recorded as pending
78%Approval rate · 30,415 approved or refused records
6,790Refused applications

23,625 approved · 6,790 refused · 1,141 withdrawn. Received dates in our records: 11 Jun 2012 to 9 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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. Approval10651/APP/2021/923

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

    17 OXFORD AVENUE HARLINGTON

    Received 10 Mar 2021
  2. Approval11866/APP/2024/2341

    Erection of a single storey side extension and conversion of roof space into habitable use to include a first floor rear extension, 4 x side facing dormers, 4 x side facing roof lights, 1 x rear gable end window, 2 x front gable end windows, the raising of the properties ridge height. Retention of existing single storey rear extension (Part - Retrospective Application).

    59 HOYLAKE CRESCENT ICKENHAM

    Received 29 Aug 2024
  3. Undecided (On Hold)1331/APP/2022/1348

    Details pursuant to condition 25 (post installation noise assessment) of as attached to planning permission ref. 1331/APP/2019/1666 dated 11/09/2020 (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))

    Block F1, Former Nestle Factory NESTLES AVENUE HAYES UB3 4RF

    Received 25 Apr 2022
  4. Approval58546/APP/2021/1516

    Single storey rear extension

    33 CASTLETON ROAD RUISLIP MIDDX HA4 9QQ

    Received 16 Apr 2021
  5. Refusal (Appealed)62674/APP/2018/3880

    Part two storey, part single storey side/rear extension

    39 FERNDOWN NORTHWOOD MIDDX HA6 1PH

    Received 1 Nov 2018
  6. Approval77082/APP/2022/576

    Conversion of roofspace to habitable use to include a rear dormer roof extension, 2 front facing rooflights, conversion of roof from hip to gable end together with the erection of a single storey outbuilding to the rear of the property (Application for a Certificate of Lawful Development for a Proposed Development).

    54 PINKWELL AVENUE HAYES UB3 1NQ

    Received 21 Feb 2022
  7. Approval62633/APP/2020/2772

    Single storey side and rear extension.

    49 WOODLANDS AVENUE RUISLIP MIDDX HA4 9RQ

    Received 2 Sept 2020
  8. Undecided50610/APP/2026/2209

    Installation of external ductwork and AC/coldroom condensers.

    UNIT 7 COWLEY MILL TRADING ESTATE LONGBRIDGE WAY UXBRIDGE

    Received 14 Sept 2026
  9. Prior Approval N/Req39891/APP/2021/146

    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 3.4 metres and for which the height of the eaves would be 2.1 metres

    8 PARK WAY RUISLIP

    Received 14 Jan 2021
  10. Approval24234/APP/2022/1013

    Change of use from Class C3 (single dwelling house) to Class C4 (HMO between three and six unrelated individuals) (Application for a Lawful Development Certificate for a Proposed Use).

    84 FROGMORE AVENUE HAYES

    Received 25 Mar 2022
  11. Approval18399/APP/2025/16

    An application submitted under Section 73 of the Town and Country Planning Act 1990 to vary Conditions 2 (Approved Drawings) and 3 (Compliance with supporting documentation) of planning permission reference 18399/APP/2022/411, dated 03-05-2023 (Installation of plant and equipment to unit DC6 including external plant equipment, external louvres and associated security fencing and landscaping, to facilitate use of the building as a data centre) to make changes to the design of the development.

    UNIT D Prologis Park STOCKLEY ROAD WEST DRAYTON UB7 9FN

    Received 3 Jan 2025
  12. Refusal49984/APP/2023/917

    Details pursuant to the discharge of Condition 6 (Land Contamination) of planning permission ref. 49984/APP/2014/3806 , dated 01-09-2015 (Changes to open storage areas associated with existing non-hazardous waste treatment and transfer facility including 2 x replacement trommels and waste picking stations, new baler, boundary treatment and landscaping involving replacement of workshop building following demolition of existing workshop building).

    YARD D SKIP LANE HAREFIELD

    Received 28 Mar 2023
  13. Refusal20352/APP/2024/649

    Erection of first floor rear extensions to numbers 123 & 123a Central Avenue

    123 & 123a CENTRAL AVENUE HAYES UB3 2BS

    Received 12 Mar 2024
  14. Approval13091/APP/2021/91

    Single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)

    83 NORTHWOOD WAY NORTHWOOD

    Received 10 Jan 2021
  15. Approval23887/APP/2026/1630

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

    18 BRADENHAM ROAD HAYES

    Received 30 Jun 2026
  16. Approval16086/APP/2022/2661

    Erection of rear dormer

    26 WESTBOURNE CLOSE HAYES

    Received 24 Aug 2022
  17. Approval21955/APP/2026/142

    Erection of single storey side and rear extension, following demolition of rear extension

    120 HAIG ROAD HILLINGDON

    Received 19 Jan 2026
  18. Approval75671/APP/2020/1886

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

    70 HARLINGTON ROAD HILLINGDON

    Received 22 Jun 2020
  19. Approval30506/APP/2024/1200

    Change of use from a single dwelling (C3) to a 4 person HMO (C4) (Application for a Certificate of Lawful Development for a Proposed Development)

    12 CROYDE AVENUE HAYES

    Received 7 May 2024
  20. Approval79274/APP/2025/262

    Conversion of roof space to habitable use to include a rear dormer with 2 front roof lights and conversion of roof from hip to gable end with new gable end window. Erection of a single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)

    43 SUMMER DRIVE WEST DRAYTON UB7 9GD

    Received 4 Feb 2025
  21. Approval51175/APP/2022/1901

    Details pursuant to condition 13 (Crane Operation Plan) of planning permission ref. 51175/APP/2020/2543 dated 25-01-2022: Demolition of existing buildings and redevelopment to provide a building up to 11 storeys comprising residential accommodation, associated landscaping, access, car parking and cycle parking.

    STANFORD HOUSE, 9 NESTLES AVENUE HAYES

    Received 14 Jun 2022
  22. Approval48976/APP/2018/2637

    Single storey rear extension

    1 SALCOMBE WAY HAYES

    Received 17 Jul 2018
  23. Withdrawn (P)58024/APP/2022/2578

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

    103 YEW AVENUE YIEWSLEY

    Received 16 Aug 2022
  24. Approval25331/APP/2021/4240

    Erection of a single storey side to rear (infill) extension

    11 CHANDOS ROAD EASTCOTE

    Received 17 Nov 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

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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.

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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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