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
23,063Searchable applications
449Recorded as pending
80%Approval rate · 21,404 approved or refused records
4,220Refused applications

17,184 approved · 4,220 refused · 899 withdrawn. Received dates in our records: 17 Aug 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 Counts reflect the last collected status; some records may be out of date.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

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. Approval75111/APP/2022/3012

    Non-Material Amendment to planning permission ref: 75111/APP/2020/1955, dated 15-04-2021, (Site clearance and preparation, including the demolition of remaining buildings, and the redevelopment of the site to provide: a new data centre (Use Class B8), two MV Energy Centres (including stand-by generation plant and gas storage), a HV Sub-Station, a visitor reception centre, plant, the creation of a new footpath and cycleway link to the canal towpath, works to the highway, car parking, cycle parking, associated infrastructure, enclosures and necessary physical security systems, hard and soft landscaping (including works to the River Crane) and ancillary uses, as well as associated external works) in order to: 1) Amend the description of development; 2) Amend Conditions 2 (Accordance with Approved Plans), 8 (Materials and Details), 9 (Landscape Scheme), 10 (Green Roofs and Walls), and 16 (Sustainable Water Management); and 3) Remove Conditions 7 (Bus Depot/Garage), 11 (Canal Access Ramp Details), 28 (Emission Mitigation Strategy), and 29 (Gas Fired Back-Up Generator Mitigation).

    Land at Bulls Bridge Industrial Estate NORTH HYDE GARDENS HAYES UB3 4QQ

    Received 30 Sept 2022
  2. Approval59845/APP/2023/3375

    Erection of external Insulation (Kooltherm K5), following rendered walls to match existing.

    21 NEW WINDSOR STREET UXBRIDGE

    Received 22 Nov 2023
  3. Refusal78978/APP/2024/2188

    Erection of a part two storey, part single storey side and rear extension. Erection of front porch extension. Conversion of integral garage to habitable accommodation and amendments to fenestrations including new driveway and installation of a new pavement crossover.

    32 HALLAND WAY NORTHWOOD HA6 2BY

    Received 13 Aug 2024
  4. Approval2157/APP/2025/2058

    Alterations to The Lodge (Listed Building Entry No: 1080217) including, demolition of unoriginal internal walls, construction of internal walls and doors, replacement kitchen, balustrade on the roof terrace, replacement WCs, and replacement of a window to be fire rated on the south elevation as well as other decorative minor alterations (Application for Listed Building Consent).

    THE LODGE HARMONDSWORTH LANE HARMONDSWORTH

    Received 31 Jul 2025
  5. Refusal75973/APP/2020/3513

    Conversion of roofspace to habitable use with 3 x rooflights

    7A KINGSEND RUISLIP HA4 7DD

    Received 28 Oct 2020
  6. Approval51312/APP/2025/3024

    Details pursuant to the discharge of Conditions 9 (Electric Vehicle Charging Point) of planning permission ref. 51312/APP/2025/623, dated 15-07-25 (Partial retention of the part single storey, part two storey wraparound extension to the side and rear, involving conversion of existing garage with new front window, erection of cycle/refuse store. and modification to existing dormer to reduce its size together with conversion of a single dwelling house into 2 x self-contained flats with associated parking, cycle and bin stores)

    12 CHURCH ROAD NORTHWOOD

    Received 1 Dec 2025
  7. Approval29650/APP/2025/2526

    Erection of single storey rear extension with amendments to fenestration

    20 MERLE AVENUE HAREFIELD

    Received 30 Sept 2025
  8. Approval20631/APP/2020/3339

    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 gable end window and alterations to fenestration (Application for a Certificate of Lawful Development for a Proposed Development)

    1 LINCOLN ROAD NORTHWOOD

    Received 16 Oct 2020
  9. Approval78285/APP/2023/2728

    Conversion of roof space to habitable use to include a rear dormer and 3 front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)

    15 WIELAND ROAD NORTHWOOD HA6 3QZ

    Received 18 Sept 2023
  10. Approval54950/APP/2023/569

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

    53 HEWENS ROAD HILLINGDON MIDDLESEX UB10 OSR

    Received 26 Feb 2023
  11. Approval52934/APP/2026/898

    Erection of front porch canopy (Retrospective application)

    29 ICKENHAM ROAD RUISLIP

    Received 9 Apr 2026
  12. Approval78222/APP/2023/2426

    Erection of a single storey extension to rear with roof light. Conversion of garage to habitable roof space and roof light. Changes to fenestration including front door and first floor rear window.

    3 VANTAGE MEWS NORTHWOOD HA6 2PW

    Received 14 Aug 2023
  13. Refusal75944/APP/2020/3295

    First floor front extension

    217C FIELD END ROAD EASTCOTE HA5 1QZ

    Received 14 Oct 2020
  14. Refusal (Appealed)75385/APP/2024/878

    Change of use of existing single family dwellinghouse into 2 dwellinghouses with associated external and internal amendments (revised description 01.05.24)

    7 MEADOW CLOSE RUISLIP HA4 8AP

    Received 4 Apr 2024
  15. Refusal (Appealed)69395/APP/2025/797

    Erection of 2 additional storeys to create a flat at first and second floors above ground floor commercial unit.

    58A STATION ROAD HAYES UB3 4DF

    Received 20 Mar 2025
  16. No Further Action(P)78161/APP/2023/2121

    Development to add a pitched roof and an additional floor to current detached block of flats to add 6 flats (2 x 1-bed flats and 4 x 2-bed flats). Total number of flats is 22.

    25-36 SALISBURY ROAD EASTCOTE PINNER

    Received 17 Jul 2023
  17. Approval6624/TRE/2023/219

    To carry out tree surgery to provide 2m clearance to the adjacent house (removing 1.5m to the lowest branch to the south) One Cedar T24 on TPO 481

    9 GREEN LANE NORTHWOOD HA6 2UX

    Received 20 Sept 2023
  18. Approval78247/APP/2023/2516

    Conversion of roof space to habitable use to include a rear dormer roof extension with juliette balcony and 4 front roof lights (Application for a Certificate of Lawful Development for a Proposed Development).

    125 LINDEN AVENUE RUISLIP HA4 8TY

    Received 24 Aug 2023
  19. Approval56993/APP/2020/3792

    Conversion of roof space 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)

    306 COWLEY ROAD UXBRIDGE

    Received 18 Nov 2020
  20. Approval46053/APP/2020/3603

    Installation of new shopfront

    32-36 STATION ROAD HAYES

    Received 26 Oct 2020
  21. Approval78099/APP/2024/642

    Details pursuant to the discharge of Conditions 3 (Sustainable Water Management Scheme), 5 (Step Free Access), 7 (Ground and Finished Floor Levels), 8 (Materials and External Surfaces), 9 (Landscape Scheme), 10 (Method Statement), 11 (Demolition and Construction Management Plan), 14 (Energy Statement) of planning permission ref. 78099/APP/2023/1735, dated 02-11-23 (Alterations to the existing house including the conversion of garage to habitable use and raising of garage roof height and erection of an attached 3-bedroom dwelling on land adjacent).

    2F BEACON CLOSE UXBRIDGE UB8 1PX

    Received 12 Mar 2024
  22. Approval27138/APP/2025/318

    Change of use of single family dwelling house (use class c3) to a small scale HMO (use class c4) for up to 6 people.

    9 CATHERINES CLOSE WEST DRAYTON

    Received 10 Feb 2025
  23. Approval4726/APP/2023/1694

    Alterations to existing Tudor Lodge Hotel building including the extension of existing dormer window on front elevation, replacement of existing French door with windows to match existing and the replacement of existing roof tiles with new tiles to match existing.

    TUDOR LODGE HOTEL, 50 FIELD END ROAD EASTCOTE PINNER

    Received 12 Jun 2023
  24. Approval76507/APP/2024/320

    Conversion of roof space to habitable use to include a rear dormer and two front roof lights

    13 KILPATRICK WAY HAYES UB4 9SX

    Received 6 Feb 2024

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
  • 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.

  • 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.

  • 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.

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.

Check collection coverage