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
23,213Searchable applications
451Recorded as pending
80%Approval rate · 21,543 approved or refused records
4,256Refused applications

17,287 approved · 4,256 refused · 904 withdrawn. Received dates in our records: 4 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 Counts reflect the last collected status; some records may be out of date.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. Approval14048/APP/2020/3507

    Conversion of roof space 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)

    2 SWANAGE WAYE HAYES

    Received 28 Oct 2020
  2. Approval49964/TRE/2023/157

    To carry out tree surgery - to remove limb on south eastern side, to reduce lateral limb on northern side by 3-4m and to crown reduce by 2-3m one Tree of Heaven at T54 within TPO 30.

    3 BLONDELL CLOSE HARMONDSWORTH

    Received 19 Jul 2023
  3. Split Decision (P)29931/TRE/2023/259

    To carry out tree surgery including a Crown Lift to 2.4m to Three Sycamore, T3, T4, T7 and To re-pollard One Ash, T11 all on TPO 427. To crown lift to 2.4m Three Cherries and one to also be cut back from the building by 1m protected by their location within Harefield Village Conservation Area.

    MANOR COURT CHURCH HILL HAREFIELD

    Received 25 Oct 2023
  4. Approval79369/APP/2025/1411

    Erection of a single storey rear extension

    17 HELMSDALE CLOSE HAYES UB4 9QS

    Received 20 May 2025
  5. Approval18399/APP/2026/1729

    Non-material amendment to planning permission ref. 18399/APP/2026/586, dated 05-06-2026 (Additional access into the site at the front, with widening of the existing access road with fencing; erection of a canopy and welfare unit to the front; lowered concrete yard area with 3 x dock doors and wheel guides; 1 x level loading door; installation of fencing and bollards, and an additional waste area) to amend the height of the approved canopy, removal of ramp and installation of stairs, and the installation of a new arm barrier.

    UNIT B Prologis Park STOCKLEY ROAD WEST DRAYTON UB7 9FN

    Received 9 Jul 2026
  6. Approval65404/APP/2021/182

    Single storey rear extension including demolition of existing conservatory and outbuildings

    18 SPRINGFIELD GARDENS RUISLIP MIDDLESEX HA4 9TQ

    Received 16 Jan 2021
  7. Prior Approval N/Req50267/APP/2025/356

    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 3.00 metres, and for which the height of the eaves would be 2.90 metres.

    104 HUNTERS GROVE HAYES

    Received 12 Feb 2025
  8. Withdrawn (P)4161/APP/2022/244

    Change of use from existing commercial unit to an MOT test station (sui generis)

    UNIT 3 RIVERSIDE BUSINESS PARK THE COMMON WEST DRAYTON UB7 7EG

    Received 26 Jan 2022
  9. Approval19076/APP/2021/4382

    Replacement of the existing conservatory with a rear extension. Erection of a ground floor side/rear extension, erection of a first floor side/rear extension. Conversion of side garage to for habitable use. Conversion of roofspace to habitable use to include a rear dormer and 2 side rooflights.

    111 LONG LANE ICKENHAM

    Received 30 Nov 2021
  10. Approval75111/APP/2023/3272

    Details pursuant to the partial discharge of Condition 9 (Landscape Scheme) in relation to Data Centre Block UP1 only (and excluding part 2.C relating to means of enclosure and boundary treatments) as attached 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).

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

    Received 10 Nov 2023
  11. Approval45455/APP/2026/386

    Change of use of the ground floor from Commercial (Use Class E) to Residential (Use Class C3) to create 16 dwellings (Application for Prior Approval under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended)).

    CAPITAL COURT, 30 WINDSOR STREET UXBRIDGE MIDDLESEX UB8 1AB

    Received 11 Feb 2026
  12. Refusal68512/APP/2022/1826

    Erection of part two storey, part single storey rear/side extension and rear outbuilding.

    21 WOODSTOCK DRIVE ICKENHAM MIDDLESEX UB10 8EG

    Received 8 Jun 2022
  13. Approval73955/APP/2024/3160

    Details pursuant to the discharge of Condition 8 (Details of External Lighting) of planning permission ref. 73955/APP/2022/2613, dated 20-03-2023 Section 73 application to vary Conditions 2, 3 and 5 of application reference 73955/APP/2021/3362 dated 20-01-2022 (Section 73 application to vary Conditions 2 and 3 of application reference 73955/APP/2020/139 (Demolition of existing buildings for residential-led mixed use development comprising buildings between 3 and 11 storeys to provide residential units (Use Class C3) and ground floor employment floorspace (Use Class B1) with associated access and car and cycle parking, landscape and amenity areas and associated servicing) to link internal corridors, relocate the consented gym use, relocate a duplex unit, change duplex units to single level, amend the refuse strategy and amend the layout of the car park & cycle stores) to include a second staircase, reduction in car parking, change to energy strategy, internal flat changes to address fire regulations, change to residential unit mix, and amendments to landscaping.

    CROWN TRADING CENTRE CLAYTON ROAD HAYES HILLINGDON UB3 1DU

    Received 3 Dec 2024
  14. Approval61313/APP/2022/426

    Existing use of subdivision of a Class C3 dwelling house into two separate residential units (Application for a Certificate of Lawful Development for an Existing Use)

    10 EASTHOLME HAYES UB3 2HZ

    Received 11 Feb 2022
  15. Approval77459/APP/2023/791

    Erection of a single storey extension to the rear of dwelling with new side facing window.

    129 CROMWELL ROAD HAYES UB3 2PU

    Received 16 Mar 2023
  16. Refusal (Appealed)77359/APP/2025/2851

    Erection of 1no. dwellinghouse including associated landscaping, parking provision, bin storage and cycle storage.

    10 LAWN AVENUE WEST DRAYTON UB7 7AQ

    Received 12 Nov 2025
  17. Approval8956/APP/2025/1393

    Demolition of existing rear extensions, erection of a single storey side and rear extension, including a front porch element.

    5 GREENCROFT AVENUE RUISLIP

    Received 19 May 2025
  18. Refusal64929/APP/2026/840

    Erection of a granny annex to rear garden.

    73 LABURNUM ROAD HAYES MIDDLESEX UB3 4JY

    Received 30 Mar 2026
  19. Approval78810/APP/2024/1426

    Erection of a single storey rear and side extension and boundary treatment.

    1 CANAL COTTAGES SPRINGWELL LANE HAREFIELD WD3 8UU

    Received 28 May 2024
  20. Approval78387/APP/2024/994

    Erection of a front porch, single storey rear extension, conversion of roof space to habitable use to include a rear dormer and front roof lights with installation/amendments to fenestration.

    1A CLIFFORD GARDENS HAYES UB3 1NX

    Received 17 Apr 2024
  21. Approval13127/APP/2024/1899

    Erection of a single storey rear extension following demolition of existing conservatory and amendments to front porch (amended description)

    39 BRIDGE ROAD UXBRIDGE

    Received 15 Jul 2024
  22. Approval78095/APP/2023/1709

    Erection of a front porch (Application for a Certificate of Lawful Development for a Proposed Development)

    55 LINDEN AVENUE RUISLIP HA4 8TZ

    Received 13 Jun 2023
  23. Approval47180/APP/2026/1684

    Existing use of property as a Class C4 HMO (Application for a Certificate of Lawful use for an Existing Use)

    8 LODGE CLOSE COWLEY UXBRIDGE

    Received 6 Jul 2026
  24. Approval31982/APP/2024/353

    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)

    38 COLNE AVENUE WEST DRAYTON

    Received 12 Feb 2024

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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