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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
29,545Searchable applications
509Recorded as pending
78%Approval rate · 27,547 approved or refused records
5,970Refused applications

21,577 approved · 5,970 refused · 1,068 withdrawn. Received dates in our records: 11 Jun 2012 to 9 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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. Approval74290/APP/2025/1638

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

    21 RIVER CLOSE RUISLIP HA4 7UY

    Received 12 Jun 2025
  2. Approval77867/ADV/2023/25

    Installation of 1 no. internally illuminated fascia and 1 no. vinyl sign applied to window.

    4 OLD DAIRY LANE RUISLIP

    Received 9 Jun 2023
  3. Approval18819/APP/2026/2054

    Conversion of roofspace to habitable use to include a rear dormer with a juliette balcony and two front rooflights and an upper floor level side facing window. Conversion from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).

    47 SIPSON ROAD WEST DRAYTON

    Received 19 Aug 2026
  4. Approval4147/APP/2019/3339

    Single storey rear extension

    UXBRIDGE GOSPEL HALL JCTN DERBY ROAD COWLEY ROAD UXBRIDGE

    Received 10 Oct 2019
  5. Approval4058/APP/2021/421

    Installation of a single storey building for retail use (Use Class E(a))

    HILLINGDON HOSPITAL PIELD HEATH ROAD HILLINGDON UB8 3NN

    Received 2 Feb 2021
  6. Approval3837/APP/2026/1492

    Proposed Enlargement of Existing Vehicular Entrance and Conservation Repairs to Grade II Listed Boundary Wall (Application for Listed Building Consent)

    50 CHURCH ROAD WEST DRAYTON

    Received 17 Jun 2026
  7. Approval20161/APP/2022/3672

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

    24B PINGLESTONE CLOSE HARMONDSWORTH

    Received 6 Dec 2022
  8. Approval59062/APP/2022/2750

    Erection of single storey extension to the front, conversion of garage to habitable accommodation and amendments to wall and fenestration at rear

    5 POTTER STREET NORTHWOOD MIDDX HA6 1QJ

    Received 2 Sept 2022
  9. Approval15381/APP/2019/2982

    Variation of Conditions 2 (Approved Plans) of planning permission Ref: 15381/APP/2019/1360 dated 13/06/2019 (Single storey side/rear extension and conversion of roof space to habitable use to include a rear dormer and gable end window)

    6 SPENCER CLOSE COWLEY UXBRIDGE

    Received 9 Sept 2019
  10. Approval35190/APP/2022/2118

    Erection of single storey side extension and conversion of roof space to habitable use to include a rear dormer roof extension with 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)

    4 CHERRY GROVE HAYES

    Received 4 Jul 2022
  11. Approval79779/APP/2025/2829

    Erection of single storey outbuilding to rear garden

    12 MONTCALM CLOSE HAYES UB4 9HF

    Received 10 Nov 2025
  12. Refusal (Appealed)14548/APP/2024/1563

    Erection of a first floor side extension

    87 WIMBORNE AVENUE HAYES

    Received 12 Jun 2024
  13. Approval61992/APP/2025/364

    Conversion of roof space to habitable use to include a rear dormer and 4 front roof lights.

    29 COLUMBIA AVENUE RUISLIP

    Received 13 Feb 2025
  14. Refusal22735/APP/2020/316

    Conversion of part of property into 1 x studio flat

    255 STATION ROAD HAYES

    Received 30 Jan 2020
  15. Approval75339/APP/2020/117

    Conversion of roof space to habitable use to include a rear dormer, 1 front roof light and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).

    55 VICTORIA AVENUE HILLINGDON UB10 9AH

    Received 14 Jan 2020
  16. Approval74281/APP/2019/2024

    Partial raising of the roof and conversion of roof space to provide two additional bedrooms

    13 MAHLON AVENUE RUISLIP HA4 6SY

    Received 14 Jun 2019
  17. Refusal40883/APP/2024/10

    Existing use of a Class C3 dwelling (Application for a Certificate of Lawful Development for an Existing Use).

    23/24 NEW WINDSOR STREET UXBRIDGE

    Received 2 Jan 2024
  18. Refusal45118/APP/2022/2835

    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 3.00 metres

    131 CORNWALL ROAD RUISLIP

    Received 12 Sept 2022
  19. Approval21376/APP/2023/2637

    Conversion of roof space to habitable use to include a rear dormer and two rooflights to the front roof slope.

    301 HIGH STREET HARLINGTON

    Received 7 Sept 2023
  20. Approval20652/APP/2023/2071

    Details pursuant to the discharge of Condition 6 (Details of weatherboarding - Listed Building) of Listed Building Consent ref. 20652/APP/2023/840, dated 26-05-2023 (Proposed improvements/alterations to front loggia including replacement of existing roof tiles, window sills and the repair of timer side windows. Installation of a tiled floor and replacement of brick dwarf walls below metal windows with insulation).

    THE OLD SHOOTING BOX HIGH ROAD EASTCOTE

    Received 11 Jul 2023
  21. Approval73466/APP/2019/4092

    Conversion of roofspace to habitable use to include a rear dormer and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for an Proposed Development)

    1 GLISSON ROAD HILLINGDON

    Received 19 Dec 2019
  22. Approval78019/APP/2024/119

    Details pursuant to the discharge of Condition 7 (Detailed Drawings) of planning permission ref. 78019/APP/2023/1347, dated 21-07-2023 (Erection of a two storey rear extension, single storey front extension and first floor side extension. Conversion of roof space to habitable use to include 12 no. roof lights to front and rear and raising of the ridge height. Changes to fenestration, formation of new gable roof over existing garage and parapet roof to be formed to rear existing single storey rear extension.)

    2 BIRKEN MEWS NORTHWOOD HA6 2GY

    Received 17 Jan 2024
  23. Approval49081/APP/2024/2322

    Erection of a single storey extension to the rear, following the conversion of integral garage to habitable accommodation

    4 LEWIS CLOSE HAREFIELD

    Received 28 Aug 2024
  24. Approval40050/APP/2026/335

    Details pursuant to the discharge Condition 4 (External Materials) of prior approval reference 40050/APP/2025/1876, dated 10-10-25, for 'Change of use from Commercial (Use Class E) to Residential (Use Class C3) to create 56 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)).

    Riverview OXFORD ROAD UXBRIDGE UB8 1HS

    Received 9 Feb 2026

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

    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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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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