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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
24,645Searchable applications
442Recorded as pending
80%Approval rate · 22,911 approved or refused records
4,633Refused applications

18,278 approved · 4,633 refused · 952 withdrawn. Received dates in our records: 24 Mar 2020 to 5 Oct 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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/Req20565/APP/2024/1723

    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 2.70 metres

    456 SIPSON ROAD SIPSON

    Received 28 Jun 2024
  2. Approval33285/APP/2023/2784

    Demolition of garage, outbuilding, passageway, rear and front porch. Reconstruction of roof profile and conversion of roof space to habitable use to include front and rear dormers. Erection of a single storey side extension set under new roof. Erection of a single storey rear extension.

    1 PIELD HEATH AVENUE HILLINGDON

    Received 21 Sept 2023
  3. Refusal75511/APP/2020/1130

    Part single storey, part two storey rear extension, single storey front extension and conversion of roof space to habitable use to include extensions to front and rear of the existing roof space, 2 side dormers, 4 rear roof lights, 4 side roof lights, conversion of the both side of roof from hip to dutch gables, alterations to elevations and demolition of existing rear conservatory

    26 KESWICK GARDENS RUISLIP HA4 7XN

    Received 6 Apr 2020
  4. Prior Approval N/Req20169/APP/2021/1025

    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 3.35 metres and for which the height of the eaves would be 2.79 metres

    3 NORFOLK ROAD UXBRIDGE

    Received 16 Mar 2021
  5. Refusal35387/APP/2023/3371

    Replacement of existing single glazed windows of the listed dwelling with a mixture of timber/metal framed double glazed replacements.

    CANNONS BRIDGE FARM BURY STREET RUISLIP

    Received 22 Nov 2023
  6. Approval71182/APP/2026/666

    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 (Application for a Certificate of Lawful Development for a Proposed Development)

    48 BURNHAM AVENUE ICKENHAM UB10 8RT

    Received 16 Mar 2026
  7. Approval42185/APP/2025/1207

    Regularisation of opening hours of Units 144 and 144a High Street (hours of 05:00 AM and 23:00 PM (all days).

    144 & 144a HIGH STREET RUISLIP

    Received 29 Apr 2025
  8. Approval69699/APP/2021/986

    Single storey rear extension

    37 ROCHESTER ROAD NORTHWOOD HA6 1NJ

    Received 12 Mar 2021
  9. Undecided76551/APP/2026/441

    Details pursuant to the discharge of Condition 8 of planning permission 76551/APP/2021/4502 dated 28-09-2022. Hybrid planning application seeking OUTLINE permission (with all matters reserved) for residential floorspace (Class C3) including demolition of all existing buildings and structures; erection of new buildings; new pedestrian and vehicular accesses; associated amenity space, open space, landscaping; car and cycle parking spaces; plant, refuse storage, servicing area and other works incidental to the proposed development; and FULL planning permission for Block A comprising 30 residential units (Class C3); new pedestrian access; associated amenity space and landscaping; cycle parking, refuse storage, and other associated infrastructure.

    LAND AT AVONDALE DRIVE HAYES

    Received 20 Feb 2026
  10. Withdrawn (P)4973/APP/2025/1706

    Erection of a part single storey, part two storey side and rear extension, and a front porch.

    55 DEANE CROFT ROAD EASTCOTE PINNER

    Received 19 Jun 2025
  11. Approval80208/APP/2026/1918

    Erection of double storey side extension, and single storey rear extension and side/rear extension.

    5 LANCASTER ROAD UXBRIDGE UB8 1AW

    Received 3 Aug 2026
  12. Approval78849/APP/2024/1788

    Erection of part single storey, part two storey extension to the rear.

    50 APPLE TREE AVENUE YIEWSLEY

    Received 5 Jul 2024
  13. Refusal8388/APP/2020/1863

    Raising of ridge height of existing roof, conversion of roof from hip to gable end, single storey front/side extension, single storey rear extension and alterations to roof of existing two storey rear element, enlargement of roof space to create additional habitable roof space to include 1 front dormer, 3 front rooflights and alterations to elevations

    16 ELGAR CLOSE ICKENHAM

    Received 19 Jun 2020
  14. Approval60349/APP/2025/2834

    Conversion of roof space to habitable use to include hip to gable extension, gable end window, rear dormer, Juliette balcony to rear, 2x front roof lights, erection of outbuilding to rear garden, and erection of a front porch (Application for a Certificate of Lawful Development for a Proposed Development)

    34 HERCIES ROAD HILLINGDON MIDDLESEX UB10 9NA

    Received 10 Nov 2025
  15. Approval25944/APP/2021/4272

    Erection of a single storey rear extension

    78 PARKFIELD CRESCENT RUISLIP

    Received 19 Nov 2021
  16. Prior Approval N/Req77128/APP/2022/787

    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 metres, and for which the height of the eaves would be 2.95 metres, following demolition of existing single storey rear extension.

    20 HOLLYWOOD GARDENS HAYES UB4 0DX

    Received 14 Mar 2022
  17. Approval77142/APP/2022/2063

    Details pursuant to the discharge of Conditions 4 (electric vehicle charging points) and 5 (cycle storage) of planning permission ref. 77142/APP/2022/871, dated 07-06-2022 (Change of use from Class C3 (Residential Home) to Class C2 (Children's care home).

    80 HOWLETTS LANE RUISLIP

    Received 29 Jun 2022
  18. Approval33667/APP/2023/1769

    Erection of plant machinery and steel gantry with acoustic screen, comprising of two gas coolers, two refrigeration compressor packs and two false load evaporators to the rear service yard of supermarket.

    J SAINSBURYS PLC LONG DRIVE RUISLIP

    Received 19 Jun 2023
  19. Approval3656/APP/2022/2363

    Retention of a single storey rear extension (retrospective application).

    336 VICTORIA ROAD RUISLIP

    Received 22 Jul 2022
  20. Approval17934/APP/2024/1775

    Construction of a single-storey side/rear conservatory infill extension

    42 CARFAX ROAD HAYES

    Received 4 Jul 2024
  21. Approval1704/APP/2025/2569

    Erection of single storey part side, part rear extension, conversion of existing internal garage to habitable use.

    19A KINGSWAY HAYES

    Received 3 Oct 2025
  22. Undecided795/APP/2026/1984

    Details pursuant to the discharge of Conditions 3 (Construction Management Plan), 6 (Boundary Treatment) and 9 (Cycle Parking) of planning permission ref. 795/APP/2026/358, dated 08-07-2026 (Proposed subdivision of existing dwelling house into two separate private units. Proposals to comprise of a ground floor two-bedroom unit with disabled access and a three-bedroom unit to first and second floors. Both with associated private amenity space and parking.)

    ASHLEIGH THE GREEN HAREFIELD

    Received 11 Aug 2026
  23. Approval57416/APP/2026/175

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

    11 HENLEY GARDENS PINNER MIDDLESEX HA5 2DE

    Received 21 Jan 2026
  24. Approval21661/APP/2025/1082

    Erection of a side and rear extension for medical practice training and consultation rooms NHS use.

    20 PIELD HEATH ROAD HILLINGDON

    Received 14 Apr 2025

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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  • 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.

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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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    Published Updated

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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