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England · Local authority

Hillingdon planning applications

PlanningTrack collects planning applications and decisions from the public planning register of London Borough of Hillingdon. Search an address, application reference or proposal. Official Hillingdon website

Collected application statistics

Collected records · All available dates
54,498Searchable applications
483Recorded as pending
75%Approval rate · 51,493 approved or refused records
12,635Refused applications

38,858 approved · 12,635 refused · 1,685 withdrawn. Received dates in our records: 11 Oct 2007 to 15 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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. Refusal (Appealed)69207/APP/2024/271

    Erection of a double storey extension to the side, conservatory and single storey extension to the rear following the demolition of existing side garages.

    1 HATCH LANE HARMONDSWORTH UB7 0BH

    Received 2 Feb 2024
  2. Refusal59248/APP/2019/3528

    Single storey outbuilding to side for use as a garden room /home office

    3 FIELD WAY RUISLIP

    Received 27 Oct 2019
  3. Approval5946/APP/2025/720

    Conversion of roof space to habitable use to include a wrap around dormer to the sides and rear to include 2x Juliette balconies (Application for a Certificate of Lawful Development for a Proposed Development)

    81 HILLSIDE ROAD NORTHWOOD

    Received 19 Mar 2025
  4. Approval23713/APP/2025/227

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

    37 COTTINGHAM CHASE RUISLIP

    Received 30 Jan 2025
  5. Approval74825/APP/2019/2506

    Conversion of garage to habitable use to include alterations to front and porch infill

    8 FALCON CLOSE NORTHWOOD HA6 2GU

    Received 29 Jul 2019
  6. Refusal (Appealed)13010/APP/2020/2853

    Construction of two additional storeys measuring 6.1 metres maximum height to provide 11 residential units (Application for Prior Approval under Schedule 2, Part 20, Class AA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended))

    FRAYS COURT, 71-73 COWLEY ROAD UXBRIDGE UB8 2AE

    Received 3 Sept 2020
  7. Approval63535/TRE/2015/193

    To carry out tree surgery, including a crown reduction by up to 3m, to the two Sycamores on the northern (only) side of Group G2 on TPO 62a

    32 COUNTESS CLOSE HAREFIELD

    Received 1 Dec 2015
  8. Approval79489/APP/2025/1378

    Partial conversion of garage space to habitable use to include installation of new window.

    26 MERLE AVENUE HAREFIELD UB9 6DG

    Received 16 May 2025
  9. Refusal9585/APP/2023/3587

    Installation of Replaced Hardstanding (Application for a Certificate of Lawful Development for a Existing Development)

    ROSEDALE THE COMMON WEST DRAYTON

    Received 12 Dec 2023
  10. Approval75358/APP/2021/1420

    Conversion of roof space to habitable use to include a side dormer, 4 side roof lights and gable end window to rear (Application for a Certificate of Lawful Development for a Proposed Development)

    19 LAWN AVENUE WEST DRAYTON UB7 7AQ

    Received 10 Apr 2021
  11. Approval33649/APP/2015/3474

    Part two storey, part single storey side extension and single storey rear extension involving demolition of existing conservatory to rear

    168 JOEL STREET EASTCOTE PINNER

    Received 10 Sept 2015
  12. Refusal (Appealed)13272/APP/2025/1976

    Erection of front porch, erection of single storey extension to the front (Part retrospective application)

    24 SWEETCROFT LANE HILLINGDON

    Received 22 Jul 2025
  13. Approval71178/APP/2015/3231

    Single storey side extension involving demolition of existing garage to rear and enlargement of existing hardstanding to front

    33 GROVE ROAD NORTHWOOD HA6 2AP

    Received 26 Aug 2015
  14. Refusal (Appealed)16103/APP/2014/854

    Single storey side/front extension (Retrospective application)

    42 CAMDEN AVENUE HAYES

    Received 12 Mar 2014
  15. Approval69472/APP/2013/3510

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

    30 STATION APPROACH SOUTH RUISLIP HA4 6RY

    Received 26 Nov 2013
  16. Approval45753/APP/2015/3147

    Details pursuant to partial discharge of condition 14 (part 1;soil contamination) of planning permission ref: 45753/APP/2013/1980, dated 09-09-13 (Variation of condition 14 (contamination) of planning permission ref: 45753/APP/2012/2029, dated 05-07-13 (Erection of five storey building to provide 13,880sq.m of Class B1 (a) office floor space, provision of car parking spaces at surface and basement level, associated landscaping and ancillary works)

    HPH 5 MILLINGTON ROAD HAYES

    Received 19 Aug 2015
  17. Approval70958/APP/2017/4344

    Installation of canopy and side screen over car wash area (Retrospective).

    NORTHWOOD COACHWORKS STATION APPROACH NORTHWOOD HA6 2XN

    Received 30 Nov 2017
  18. Approval30752/APP/2014/656

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

    40 WEYMOUTH ROAD HAYES

    Received 26 Feb 2014
  19. Approval70099/APP/2016/2646

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

    54 HYDE WAY HAYES UB3 4PB

    Received 8 Jul 2016
  20. Approval77107/APP/2022/1419

    Erection of a single storey rear extension following demolition of existing rear conservatory

    33 APPLE TREE AVENUE YIEWSLEY UB7 8BY

    Received 3 May 2022
  21. Refusal (Appealed)78391/APP/2024/378

    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 2.60 metres.

    105 THE LARCHES HILLINGDON

    Received 14 Feb 2024
  22. Approval30908/APP/2017/106

    Conversion of garage to habitable use involving alterations to front elevation and installation of mono-pitched roof to garage and porch

    25 KNOLL CRESCENT NORTHWOOD

    Received 9 Jan 2017
  23. Approval53216/APP/2014/2300

    Change of use of ten (10) existing leisure moorings to residential moorings

    PACKET BOAT MARINA PACKET BOAT LANE COWLEY

    Received 30 Jun 2014
  24. Refusal (Appealed)10285/APP/2015/12

    Part conversion of existing single storey outbuilding to habitable use for use as a granny annex involving alterations to front elevation

    15 ROSS CLOSE HAYES

    Received 5 Jan 2015

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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    Planning application documents: what to read first

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

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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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