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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
44,678Searchable applications
491Recorded as pending
77%Approval rate · 42,013 approved or refused records
9,824Refused applications

32,189 approved · 9,824 refused · 1,456 withdrawn. Received dates in our records: 11 Oct 2007 to 14 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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. Approval3324/APP/2016/1669

    Conversion of roofspace to habitable use to include a rear dormer, 3 front rooflights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)

    49 COLBROOK AVENUE HAYES

    Received 3 May 2016
  2. Approval63034/APP/2017/663

    Single storey rear extension

    48 FLORISTON AVENUE HILLINGDON

    Received 22 Feb 2017
  3. Approval19758/APP/2023/3328

    A Prior Notification Application submitted under Schedule 2, Part 11, Class B of the Town and Country Planning (General Permitted Development) (England) Order (2015) (as amended) for the demolition of buildings and structures situated at 371a High Street, Harlington.

    The Elms 371A HIGH STREET HARLINGTON

    Received 16 Nov 2023
  4. Approval23300/APP/2017/425

    Reinstate House in Multiple Occupation (Use Class C4) to a single family dwelling (Use Class C3)

    9 PRINCES PARK PARADE HAYES

    Received 7 Feb 2017
  5. Approval37202/APP/2025/1572

    Erection of single storey front extension.

    5 ROUNDWOOD AVENUE STOCKLEY PARK

    Received 4 Jun 2025
  6. Approval15729/APP/2017/3420

    Single storey side/rear extension

    43 BOLDMERE ROAD EASTCOTE

    Received 20 Sept 2017
  7. Approval77057/TRE/2022/27

    To carry out tree surgery including a crown reduction back to previous points to one Willow T2 on TPO 474

    Community Areas 1 To 18 CARLTON PLACE NORTHWOOD HA6 2JX

    Received 15 Feb 2022
  8. Approval47163/APP/2025/1513

    Installation of a condenser unit and enclosure, at ground level adjacent to the western building elevation, and associated works (Retrospective).

    UNIT 203 RIVERSIDE WAY UXBRIDGE MIDDLESEX

    Received 30 May 2025
  9. Approval19016/APP/2023/20

    Demolition of existing dwelling and erection of 4 x self-contained units including 1 x studio unit, 2 x 1-bed units and 1 x 3-bed unit with associated landscaping, parking, refuse and recycling.

    18 IVER LANE COWLEY UXBRIDGE

    Received 4 Jan 2023
  10. Refusal65701/APP/2019/1239

    First floor front extension (Retrospective)

    64 MAYFIELD CLOSE HILLINGDON

    Received 9 Apr 2019
  11. Refusal66702/APP/2021/2237

    Single storey side extension and new front porch involving demolition of existing garage

    94 BURY STREET RUISLIP

    Received 2 Jun 2021
  12. Refusal70340/APP/2021/620

    Installation of vehicular crossover

    187 WEST END ROAD RUISLIP HA4 6LD

    Received 16 Feb 2021
  13. Prior Approval N/Req56466/APP/2018/575

    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 3.168 metres, and for which the height of the eaves would be 2.656 metres.

    21 CAMPDEN ROAD ICKENHAM MIDDLESEX UB10 8EU

    Received 14 Feb 2018
  14. Approval15353/APP/2020/1980

    Non-material amendment to Planning Permission Ref: 15353/APP/2017/2585 (Single storey rear extension and conservatory to rear) to change pitched glazed conservatory roof to a flat roof with rooflights

    26 PARK LANE HAYES

    Received 30 Jun 2020
  15. Approval14387/APP/2021/1861

    Details pursuant to condition 5 (Materials) of Listed Building Consent Ref: 14387/APP/2020/4128 dated 19/02/2021 (Proposed barn extension to provide an extended dining area at ground floor and 8 no. guest rooms at first floor (Application for Listed Building Consent))

    THE SIX BELLS PH DUCKS HILL ROAD RUISLIP

    Received 6 May 2021
  16. Refusal70342/APP/2021/113

    Installation of drop kerb and installation of driveway.

    125 MOUNT PARK ROAD EASTCOTE HA5 2JY

    Received 11 Jan 2021
  17. Approval76321/APP/2021/2449

    Single storey side/rear extension, first floor rear extension and conversion of garage to habitable use

    23 CRANFORD PARK ROAD HAYES UB3 4PG

    Received 19 Jun 2021
  18. Approval8294/APP/2024/2325

    Details pursuant to the discharge of Conditions 17 (Secured by Design) of planning permission ref. 8294/APP/2022/2576, dated 25/01/2023 (Demolition of the single storey building and glazed link, in connection with the formation of a service yard and alterations to the warehouse building, including the insertion of loading bays and formation of parking for HGV's and cars.)

    FORMER EMI SITE DAWLEY ROAD HAYES UB3 1HH

    Received 28 Aug 2024
  19. Approval65669/APP/2018/2094

    Conversion of roofspace to habitable use to include a rear dormer and 2 front rooflights, involving 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)

    3 WALNUT WAY RUISLIP MIDDLESEX HA4 6TA

    Received 6 Jun 2018
  20. Approval5698/APP/2020/1367

    Part single storey, part two storey side and rear extension and front porch

    118 DULVERTON ROAD RUISLIP

    Received 29 Apr 2020
  21. Approval10951/APP/2026/2335

    Proposed conversion of roof space to habitable use to include a hip to gable extension, rear dormer, gable end window and 3 front roof lights (Certificate of Lawful Development).

    51 PARKFIELD AVENUE UXBRIDGE

    Received 5 Oct 2026
  22. Refusal56466/APP/2018/54

    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 3.589 metres, and for which the height of the eaves would be 2.856 metres

    21 CAMPDEN ROAD ICKENHAM MIDDLESEX UB10 8EU

    Received 3 Jan 2018
  23. Approval74693/APP/2019/1578

    Single storey side extension and part two storey, part single storey rear extension

    24 OAK GROVE RUISLIP HA4 8UF

    Received 10 May 2019
  24. Approval63974/APP/2025/1690

    Conversion of roof space to habitable use to include a 2x side dormers (Application for a Certificate of Lawful Development for a Proposed Development)

    24 DAWLEY AVENUE HILLINGDON

    Received 18 Jun 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

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

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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

    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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