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England · Local authority

Hertsmere Borough Council
Planning applications.

Explore collected planning applications and decisions for Hertsmere Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
6,405Searchable applications
440Recorded as pending
83%Approval rate · 4,346 approved or refused records
732Refused applications

3,614 approved · 732 refused · 336 withdrawn. Received dates in our records: 4 Sept 2020 to 7 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 Counts reflect the last collected status; some records may be out of date.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
Planning information Planning and Building ControlContact planning Planning Permission AdviceLocal plan Draft Local Plan 2026: A new sustainable Local Plan for HertsmerePre-application advice Pre-Application AdviceArticle 4 directions Article 4 Directions - Conservation

Council contacts

Contact details were found on council pages. Check the source for opening hours and which enquiries the service handles.

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 areas16 mapped area records
Article 4 direction areasNo boundary records available in this collection

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. Decided24/0233/MA

    Application for a non-material amendment to allow for alterations to garage orientation and alterations to fenestration following the grant of planning permission reference 22/0825/HSE.

    15 Elmroyd Avenue Potters Bar Hertfordshire EN6 2ED

    Received 20 Feb 2024
  2. Decided24/0234/CLP

    Construction of a single storey outbuilding with gable roof at rear of garden. Certificate of Lawful Development (Proposed).

    64 Dugdale Hill Lane Potters Bar Hertfordshire EN6 2DN

    Received 20 Feb 2024
  3. Decided24/0235/HSE

    Single storey rear extension.

    250 Aycliffe Road Borehamwood Hertfordshire WD6 4EN

    Received 20 Feb 2024
  4. Decided24/0238/CLP

    Construction of swimming pool, oak-frame gazebo and boundary fence to rear garden. Certificate of Lawful Development (Proposed) (Revised application).

    Deeves Hall Deeves Hall Lane Ridge Potters Bar Hertfordshire EN6 3LS

    Received 20 Feb 2024
  5. Decided24/0239/HSE

    Part two, part single storey front and side extension, single storey rear extension and alterations to fenestration and materials. (AMENDED PLANS RECEIVED: 10/05/2024 - design of two storey front extension altered).

    16 Cragg Avenue Radlett Hertfordshire WD7 8DW

    Received 21 Feb 2024
  6. Decided24/0240/FUL

    Erection of front porch and single storey rear extension following demolition of conservatory (amendments received on 23.04.2024).

    1 Park Avenue Maisonettes Park Avenue Bushey Hertfordshire WD23 2BR

    Received 21 Feb 2024
  7. Decided24/0241/HSE

    Installation of 2x air source heat pumps and 4x air-conditioning units. (Retrospective application)

    36 Shenley Hill Radlett Hertfordshire WD7 7BD

    Received 21 Feb 2024
  8. Decided24/0242/HSE

    Erection of an outbuilding (Garden Room) in the rear garden to accommodate a home gym and an associated swimming pool.

    14 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PN

    Received 21 Feb 2024
  9. Decided24/0243/DOC

    Application for approval of details reserved by condition 5 (external materials) of planning permission reference 23/1761/HSE.

    21 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PW

    Received 22 Feb 2024
  10. Decided24/0244/HSE

    Single storey rear extension to include 2 x roof lights, increasing the depth of the existing single storey addition by 4359mm; relocation of rear patio steps; alterations to fenestration to include replacement of existing garage door.

    64 Deepdene Potters Bar Hertfordshire EN6 3DE

    Received 22 Feb 2024
  11. Decided24/0245/HSE

    Demolition of existing rear conservatory, construction of single storey rear extension and alterations to fenestration.

    24 Elmroyd Avenue Potters Bar Hertfordshire EN6 2EE

    Received 22 Feb 2024
  12. Decided24/0246/HSE

    Installation of dropped kerb, vehicle crossover and hardstanding to front garden to provide 2 x off road parking spaces with EV charging point.

    77 Aberdale Gardens Potters Bar Hertfordshire EN6 2JF

    Received 22 Feb 2024
  13. Decided24/0248/FUL

    Change of use of residential dwelling (C3) to Monks' accommodation (Sui Generis) (retrospective application).

    2 The Green Letchmore Heath Watford Hertfordshire WD25 8ER

    Received 22 Feb 2024
  14. Decided24/0249/DOC

    Application for approval of details reserved by conditions 3 (Landscaping Scheme) and 4 (Arboricultural Method Statement and Tree Protection Plan) of planning permission reference 22/0029/HSE.

    Cherries Hartspring Lane Watford Bushey Hertfordshire WD25 8AD

    Received 22 Feb 2024
  15. Unknown24/0251/MA

    Application for a non-material amendment to allow for amendment of the description of development to "Construction of a permanent film and television stage set (the Back Lot), demolition works, alterations to existing buildings, new boundary treatment, landscaping and associated work", and removal of an additional tree within the site boundary following grant of planning permission reference 23/0279/FUL.

    BBC Elstree Centre Clarendon Road Borehamwood Hertfordshire WD6 1JF

    Received 23 Feb 2024
  16. Decided24/0253/CLP

    Conversion of loft to habitable space with hip to gable roof alterations to include rear dormer and insertion of 3 x front roof lights. Certificate of Lawful Development (Proposed).

    127 Mill Way Bushey Hertfordshire WD23 2AE

    Received 23 Feb 2024
  17. Decided24/0254/HSE

    Demolition of existing conservatory and construction of single storey rear extension to include 3x rooflights, alterations to fenestration and extension to patio to include bbq area.

    127 Mill Way Bushey Hertfordshire WD23 2AE

    Received 23 Feb 2024
  18. Decided24/0255/FUL

    Conversion of loft to habitable space including rear dormer and 2x front roof lights. (AMENDED PLANS RECEIVED: 12/04/2024 - alterations to fenestration and increased set in from the left side wall).

    102 Ashfield Avenue Bushey Hertfordshire WD23 4HN

    Received 23 Feb 2024
  19. Decided24/0256/TPO

    T10 LIME. Remove lower branches to a vertical height of 4m, above ground level or raised surface, removing entire branches, or part of same that extend below the specific clearance height, with final cuts made to the branch collar or nearest growing point, B.S.3998:13.5. AS per annotated photograph.

    Springhill The Warren Radlett Hertfordshire WD7 7DU

    Received 26 Feb 2024
  20. Decided24/0257/HSE

    Construction of single storey side and rear extensions, conversion of loft to habitable space at first floor level with associated hip to gable roof alterations and front, both sides and rear dormers, window to front gable and rear juliet balcony. Alterations to fenestration to include relocation of front entrance (amendments received on 30.05.2024).

    3 The Crest Mount Grace Road Potters Bar Hertfordshire EN6 1RF

    Received 26 Feb 2024
  21. Decided24/0258/CLP

    Conversion of loft to habitable space with associated hip to gable roof alterations, rear dormer and juliet balcony, and insertion of 3 x front rooflights. Certificate of Lawful Development (Proposed).

    55 Highwood Avenue Bushey Hertfordshire WD23 2AL

    Received 26 Feb 2024
  22. Decided24/0259/CLE

    Conversion of loft to habitable space to include rear dormer and 3x rooflights to front. Construction of single-storey outbuilding. Certificate of Lawful Development (Existing).

    36 Willow Way Radlett Hertfordshire WD7 8DY

    Received 26 Feb 2024
  23. Decided24/0260/DOC

    Application for approval of details reserved by conditions 3 (Community use agreement) and 4 (Trees) of planning permission reference 23/1562/FUL.

    St Margarets School Merry Hill Road Bushey Hertfordshire WD23 1DT

    Received 26 Feb 2024
  24. Decided24/0261/CLP

    Conversion of loft to habitable space to include rear dormer, insertion of 3x rooflights to front and hip to gable roof alterations. Certificate of Lawful Development (Proposed).

    14 Drayton Avenue Potters Bar Hertfordshire EN6 2LF

    Received 27 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 Hertsmere Borough Council

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 Hertsmere Borough Council, 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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