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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
41,049Searchable applications
501Recorded as pending
77%Approval rate · 38,549 approved or refused records
9,045Refused applications

29,504 approved · 9,045 refused · 1,349 withdrawn. Received dates in our records: 11 Oct 2007 to 12 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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. Prior Approval N/Req31959/APP/2021/324

    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 2.4 metres

    6 RAISINS HILL EASTCOTE PINNER

    Received 26 Jan 2021
  2. Undecided29950/APP/2026/415

    Demolition of existing garages to create 5 self-contained units with amenities and bike stands, including emergency access and parking.

    306 HIGH STREET HARLINGTON

    Received 17 Feb 2026
  3. Approval77902/APP/2025/2938

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

    37 HERCIES ROAD HILLINGDON UB10 9LS

    Received 20 Nov 2025
  4. Approval78333/APP/2026/240

    non-material amendment to planning permission ref. 78333/APP/2024/723, dated 05/06/2024 (Erection of a single storey detached building to the rear for use as a residential annexe) to add a Shower and WC

    21 ADELPHI CRESCENT HAYES UB4 8LZ

    Received 28 Jan 2026
  5. Approval51618/TRE/2018/199

    to reduce Pagoda by approximately 3m to previous reduction points, reshaping to live growth and lift to 6m (T1 on TPO 589)

    39 SUMMERHOUSE LANE HARMONDSWORTH

    Received 25 Oct 2018
  6. Approval29094/APP/2024/1379

    Erection of a single-storey side/rear wraparound extension and front extension. Conversion of integral garage to habitable accommodation following the demolition of the rear outbuilding.

    38 CORWELL LANE HILLINGDON

    Received 22 May 2024
  7. Refusal40229/APP/2021/1763

    Part two storey part single storey rear extension.

    19 WHITBY ROAD RUISLIP

    Received 30 Apr 2021
  8. Approval31772/APP/2025/3070

    Erection of single-storey wrap-around extension with a pitched roof, extension to the rear of the existing habitable loft space, amendments to the existing front window dormer, and fenestrations, and shrub fencing along the curtilage. All following the demolition of the existing attached garage and rear extension

    1 TREETOPS CLOSE NORTHWOOD

    Received 5 Dec 2025
  9. Undecided80151/APP/2026/1580

    Erection of a single storey rear extension, following the removal of a storage container.

    246 KINGSHILL AVENUE HAYES UB4 8BZ

    Received 24 Jun 2026
  10. Approval64076/APP/2017/1920

    Front porch and installation of vehicular crossover

    116B GREEN LANE NORTHWOOD Middlesex

    Received 24 May 2017
  11. Approval63959/APP/2023/2459

    Erection of a single storey extension to side/rear and erection of an outbuilding to rear garden.

    2 KENMORE CRESCENT HAYES MIDDLESEX

    Received 16 Aug 2023
  12. Refusal2645/APP/2019/3377

    Details pursuant to condition 5 (Trees) of planning permission Ref: 2645/APP/2016/4571 dated 08/06/2017 (Two storey, 7-bed detached dwelling with habitable roofspace, parking and amenity space involving demolition of existing dwelling)

    8 LINKSWAY NORTHWOOD

    Received 14 Oct 2019
  13. Withdrawn (P)65106/APP/2018/4064

    Non Material Amendment to Planning Permission Ref: 65106/APP/2017/4230 (Single storey side/rear extension and detached garage to side) to reduce the size of the proposed extension and leave the garage as existing

    13 MILL CLOSE WEST DRAYTON MIDDX UB7 7EW

    Received 18 Nov 2018
  14. Refusal23556/APP/2017/92

    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)

    8 FALLING LANE YIEWSLEY

    Received 10 Jan 2017
  15. Prior Approval N/Req60241/APP/2017/3368

    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 2.7 metres

    3 GRANVILLE ROAD HILLINGDON MIDDLESEX UB10 9AD

    Received 19 Sept 2017
  16. Withdrawn (P)74869/APP/2021/3534

    Non-material amendment to planning permission ref. 74869/APP/2020/1472, dated 8th July 2020 (Single storey rear extension) to make amendments to change the roof from pitched to flat, replacement rear windows with door and window and replacement rooflight above extension.

    89 GLEBE AVENUE ICKENHAM

    Received 20 Sept 2021
  17. Approval79457/APP/2025/1195

    Erection of a single-storey rear extension, a front porch, and conversion of roof space to habitable use, including the construction of a rear dormer and installation of two front roof lights, along with amendments to fenestration, including removal of the front bay window and side porch canopy.

    6 WINGFIELD WAY RUISLIP HA4 6RH

    Received 28 Apr 2025
  18. Approval18607/APP/2021/557

    Porch to front (Retrospective).

    53 MIDHURST GARDENS HILLINGDON

    Received 11 Feb 2021
  19. Approval77946/APP/2023/1165

    Demolition of existing timber constructed conservatory and erection of 4m ground floor rear extension.

    54 PROVIDENCE ROAD YIEWSLEY UB7 8HJ

    Received 20 Apr 2023
  20. Approval10137/APP/2021/3722

    Conversion of roof space to habitable use to include rear dormer and roof lights to front and side roof lights; and installation of first floor side elevation window

    44 PARK AVENUE RUISLIP

    Received 4 Oct 2021
  21. Approval61866/APP/2023/2196

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

    56 NINE ELMS AVENUE COWLEY MIDDLESEX

    Received 25 Jul 2023
  22. Approval3132/APP/2018/2079

    Two storey rear extension and demolition of existing single storey front extension and conversion of garage to habitable use with a new a bay window

    27 DERBY ROAD UXBRIDGE

    Received 5 Jun 2018
  23. Approval47162/APP/2020/2364

    Single storey side/rear extension

    10 SHERWOOD AVENUE RUISLIP

    Received 29 Jul 2020
  24. Approval14973/APP/2018/4173

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

    11 PRINCES PARK LANE HAYES

    Received 27 Nov 2018

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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