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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
26,432Searchable applications
441Recorded as pending
79%Approval rate · 24,619 approved or refused records
5,139Refused applications

19,480 approved · 5,139 refused · 1,004 withdrawn. Received dates in our records: 21 Oct 2019 to 5 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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. Undecided (On Hold)64645/APP/2026/1997

    Details pursuant to the discharge of Conditions 3 (dimensions of car parking) of planning permission ref. 64645/APP/2025/2624, dated 08-12-2025 (Change of use of the existing residential property (Use Class C3) to a small House in Multiple Occupation (Use Class C4). Retrospective.)

    2 ROBINS CLOSE COWLEY MIDDX UB8 2LF

    Received 12 Aug 2026
  2. Approval79956/ADV/2026/18

    Installation of an internally illuminated freestanding double-sided digital advertisement unit

    BUS SHELTER OUTSIDE 23 STATION ROAD HAYES UB3 4DA

    Received 6 Mar 2026
  3. Approval56804/APP/2022/3192

    Details Pursuant to Conditions 3 (ground levels), 4 (materials), 5 (landscape scheme), 8 (SUDs), 9 (Parking allocation scheme), 10 (Secured by Design accreditation), 11 (construction logistics plan), 12 (demolition plan), 13 (fire strategy report), 14 (step free access), and 15 (building regulations) of planning permission ref. 56804/APP/2021/1354 dated 06-04-2021 for a Section 73 application seeking variation of Condition 2 (Approved Plans) of planning permission Ref: 56804/APP/2019/3696 dated 22-04-20 (Demolition of existing disused garages and erection of 2 x 4-bedroom semi-detached houses and associated external works) to amend proposed boundary to include existing garage walls.

    Garage Block Rear Of Hazeldene Gardens HAZELDENE GARDENS HILLINGDON Uxbridge UB10 9DJ

    Received 18 Oct 2022
  4. Approval20357/APP/2020/2460

    Part two storey, part single storey front/side/rear extension, conversion of garage to habitable use and conversion of roofspace to habitable use to include 1 front, 1 rear and 2 side rooflights involving demolition of existing structures

    7 THE FAIRWAY HILLINGDON

    Received 6 Aug 2020
  5. Approval4429/APP/2025/1899

    Erection of single storey detached outbuilding at bottom of rear garden of dwellinghouse.

    33 KEWFERRY ROAD NORTHWOOD

    Received 14 Jul 2025
  6. Approval8675/APP/2024/2734

    Installation of a vehicle crossover and hardstanding to front of dwelling.

    333 HIGH STREET HARLINGTON

    Received 14 Oct 2024
  7. Approval28621/TRE/2020/288

    To fell one Oak tree, T1 on TPO 688.

    23 EASTBURY ROAD NORTHWOOD

    Received 8 Oct 2020
  8. Approval52652/APP/2019/3482

    Single story rear extension

    48 HERLWYN AVENUE RUISLIP

    Received 23 Oct 2019
  9. Refusal73047/APP/2021/336

    Two x 3-bed semi-detached dwellings with associated parking and amenity space involving demolition of existing garages

    GARAGES OFF GREEN WALK RUISLIP HA4 8NL

    Received 27 Jan 2021
  10. Refusal78764/APP/2024/1187

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

    184 JOEL STREET NORTHWOOD

    Received 3 May 2024
  11. Approval49261/APP/2026/985

    Details pursuant to the discharge of Condition 21(i) (Contaminated Land) of planning permission ref. 49261/APP/2024/2904 dated 12-03-2026 (Demolition of the existing building and structures on site, and all other associated site clearance works. Construction of a data centre building (Class B8) with plant at roof level with an emergency generator (1no.) and associated flue (provided within an external compound adjoining the data centre building), sprinkler tank and pumphouse, security guard house, and provision of one kiosk substation and MV Building. The development also comprises the construction of a new access and internal road and circulation areas, footpaths, provision of car and bicycle parking, hard and soft landscaping and other associated works and ancillary site infrastructure.)

    UNIT 4, SILVERDALE INDUSTRIAL ESTATE SILVERDALE ROAD HAYES

    Received 20 Apr 2026
  12. Withdrawn (P)36573/APP/2019/3954

    Change of Use of existing internal space at roof level from Use Class B1 (Business) to Use Class C3 (Dwelling house) for use a flat (Prior Approval)

    ARMSTRONG HOUSE 38 MARKET SQUARE UXBRIDGE UB8 1LH

    Received 6 Dec 2019
  13. Refusal19030/APP/2021/105

    Single storey rear extension, single storey side extension, conversion of roofspace to habitable use to include a rear dormer and a raised platform (Application for a Certificate of Lawful Development for a Proposed Development)

    14 BAWTREE ROAD UXBRIDGE

    Received 12 Jan 2021
  14. Refusal77483/APP/2022/2580

    Part single; part two-storey side and rear extension and front porch extension.

    29 GLEBE ROAD HAYES

    Received 16 Aug 2022
  15. Approval6862/TRE/2025/205

    TPO 254 T3 1x Horse Chestnut to reduce to previous points approx 3 metres.

    19 COPSE WOOD WAY NORTHWOOD

    Received 5 Aug 2025
  16. Refusal46465/APP/2020/4320

    Part two storey, part single storey rear extension with alterations to front and rear fenestration (Application for a Certificate of Lawful Development for a Proposed Development)

    21 NORTH ROAD WEST DRAYTON

    Received 30 Dec 2020
  17. Approval6374/APP/2021/820

    Single storey side/rear extension including partial raising of roof by 400mm

    131 NORTHWOOD WAY NORTHWOOD

    Received 2 Mar 2021
  18. Refusal60872/APP/2021/3669

    Part single storey side extension on ground floor and part double storey side return with Velux skylight on the roof above the staircase

    36 RALEIGH AVENUE HAYES MIDDLESEX UB4 0EE

    Received 29 Sept 2021
  19. Withdrawn (P)53055/APP/2023/2911

    Erection of an annex to rear garden following the demolition of existing garage.

    1 WOLFE CLOSE HAYES

    Received 6 Oct 2023
  20. Approval76906/APP/2026/1254

    Erection of a single storey rear extension with patio to the rear.

    184 HERLWYN AVENUE RUISLIP HA4 6HJ

    Received 20 May 2026
  21. Approval75255/APP/2019/3763

    Proposed demolition of all existing storage buildings and erection of 5 x 2-storey 3-bed terraced houses, 4 new storage units and ancillary development

    LAND AT THE REAR OF 113-127 MOORFIELD ROAD COWLEY UB8 3SH

    Received 20 Nov 2019
  22. Refusal53686/APP/2026/2048

    Convert a single dwelling (C3 use) into a 5 persons HMO (Class C4).

    33 PARKFIELD AVENUE HILLINGDON

    Received 18 Aug 2026
  23. Approval585/APP/2022/131

    Non-material amendment to application reference 585/APP/2019/829 dated 18-02-2020 (Erection of a building containing 72 assisted living apartments and communal facilities (Use Class C2) with associated parking and landscaping) to amend internal layouts, alter external elevations, introduce a stepped secondary access at ground floor level and roof terraces at 5th and 6th floor level.

    Land off Thompson Road & St Lukes Road Former RAF Uxbridge HILLINGDON ROAD UXBRIDGE

    Received 17 Jan 2022
  24. Approval26834/APP/2020/1572

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

    30 DARTMOUTH ROAD RUISLIP

    Received 21 May 2020

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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