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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
22,092Searchable applications
449Recorded as pending
81%Approval rate · 20,474 approved or refused records
3,927Refused applications

16,547 approved · 3,927 refused · 877 withdrawn. Received dates in our records: 29 Oct 2020 to 5 Oct 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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. Approval79377/APP/2025/861

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

    40 NORTHWOOD WAY NORTHWOOD HA6 1AT

    Received 25 Mar 2025
  2. Approval29179/APP/2026/1882

    Erection of a single storey extension to the side and front (Partially Retrospective Application)

    32 BARNHILL ROAD HAYES

    Received 29 Jul 2026
  3. Approval35810/APP/2023/2106

    Minor material amendment (s73) to vary Conditions 2 (Approved Plans) and 13 (Energy) of Planning Inspectorate decision letter dated 21-09-2022 for appeal reference APP/R5510/W/21/3288333 (LPA planning reference 35810/APP/2021/1234) for the Demolition of existing building and replacement with an up to 8-storey building comprising residential units, landscaping and amenity space. The proposed amendments include the replacement of the winter gardens with balconies and the replacement of the reference to the energy statement within Condition 13 to reflect an updated energy statement.

    TAVISTOCK WORKS TAVISTOCK ROAD YIEWSLEY

    Received 17 Jul 2023
  4. Refusal76168/APP/2021/4552

    Erection of a single storey extension to the side and rear

    81 NORTHWOOD WAY NORTHWOOD

    Received 16 Dec 2021
  5. Refusal (Appealed)12629/APP/2021/1144

    First floor side extension

    17 BONIFACE ROAD ICKENHAM

    Received 22 Mar 2021
  6. Approval56257/APP/2024/2934

    Erection of a single storey infill extension to the rear.

    1 PRIORY CLOSE RUISLIP

    Received 6 Nov 2024
  7. Approval34251/APP/2026/1655

    Conversion of roof space to habitable use to include a rear dormer with Juliette balcony, 2 roof lights, conversion of roof from hip to gable end with new gable end window (Application for a Certification of Lawful Development for a Proposed Development)

    29 POTTER STREET NORTHWOOD

    Received 2 Jul 2026
  8. Approval73794/APP/2025/371

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

    5 CLEMENT GARDENS HAYES UB3 4AP

    Received 13 Feb 2025
  9. Approval77549/APP/2022/2901

    Erection of a single storey front porch and rear extension

    13 LINCOLN ROAD NORTHWOOD HA6 1LB

    Received 19 Sept 2022
  10. Approval23917/APP/2025/1636

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

    162 ASHFORD AVENUE HAYES

    Received 12 Jun 2025
  11. Approval15807/APP/2021/618

    Variation of Condition No.2 (Approved Plans) attached to Planning Decision Ref: 15807/APP/2020/2995 dated 17/11/2020 to allow for changes to the porch and front dormer roof extension together with introducing a balcony and privacy screens to the rear elevation (Single storey rear extension, conversion of garage to habitable use and conversion of roofspace to habitable use to include 2 rear dormers, 2 front rooflights and a side rooflight with alterations to fenestration)

    114 COPSE WOOD WAY NORTHWOOD

    Received 16 Feb 2021
  12. Approval7140/APP/2026/2103

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

    87 BRIXHAM CRESCENT RUISLIP

    Received 26 Aug 2026
  13. Approval14395/APP/2023/3459

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

    4 HAZELDENE GARDENS HILLINGDON

    Received 30 Nov 2023
  14. Undecided39003/TRE/2026/223

    TPO 152 T70 1x Weeping Willow to dismantle, remove and replace the tree in sections to ground level. Stump to be ground out to facilitate replanting

    21 KIRBY CLOSE NORTHWOOD

    Received 17 Sept 2026
  15. Approval10871/APP/2026/64

    Erection of a Single Storey Rear Extension

    THE RETREAT TROUT ROAD YIEWSLEY

    Received 9 Jan 2026
  16. Approval42413/APP/2025/3240

    Part demolition, alterations and extension to the dwellinghouse and barn

    OLD CLACK FARM TILE KILN LANE HAREFIELD

    Received 23 Dec 2025
  17. Approval51749/APP/2025/580

    Erection of front porch and handrail in front yard.

    74 FARMLANDS EASTCOTE PINNER

    Received 4 Mar 2025
  18. Approval17412/APP/2022/854

    Variation of Condition 2 (Approved Plans) and Condition 5 (Obscure Glazing) of planning permission ref. 17412/APP/2019/2186 dated 16/10/2019 'Single storey side extensions, single storey rear extension and for conversion of roof space to habitable use to include, raising of ridge of roof, 6 side dormers, 5 side rooflights and extension and conversion of front and rear of roof from hip to gable end with new gable end windows' to allow minor fenestration changes, changes to the rooflights and dormers, internal layout changes and the ground floor side windows to remain obscure glazed but be restricted opening to allow for natural ventilation (AMENDED PLANS AND DESCRIPTION).

    43 SWEETCROFT LANE HILLINGDON

    Received 14 Mar 2022
  19. Refusal58406/APP/2023/349

    Erection of a porch/side extension and internal layout changes to convert the garage

    34 KINGSASH DRIVE HAYES MIDDLESEX UB4 9RG

    Received 6 Feb 2023
  20. Approval75839/APP/2024/2686

    Erection of a single storey extension to the rear

    1 ARCON DRIVE HAYES UB5 6FJ

    Received 11 Oct 2024
  21. Approval48216/APP/2023/147

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

    19 BOLDMERE ROAD EASTCOTE

    Received 17 Jan 2023
  22. Approval76449/APP/2023/3116

    Retrospective erection of two storey side and rear extension, part single storey rear extension, conversion of roof space to habitable use to include rear dormer and two front and two side roof lights

    2 HATHERLEIGH ROAD RUISLIP HA4 6AS

    Received 27 Oct 2023
  23. Refusal (Appealed)15877/APP/2022/3623

    Erection of a first floor side extension

    57 WARLEY ROAD HAYES

    Received 29 Nov 2022
  24. Approval78109/APP/2023/2272

    Erection of a double storey side and a part single storey, part double storey rear extension with the main entrance relocated and alterations to fenestration (revised description)

    83 GLEBE AVENUE ICKENHAM UB10 8PF

    Received 31 Jul 2023

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

    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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