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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
5,899Searchable applications
440Recorded as pending
83%Approval rate · 3,964 approved or refused records
661Refused applications

3,303 approved · 661 refused · 305 withdrawn. Received dates in our records: 4 Sept 2020 to 7 Oct 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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. Decided23/0192/HSE

    Single storey side extension to facilitate new entrance, single storey side extension to include replacement of existing garage and roof alterations, single storey rear extension and alterations to fenestration.

    45 Baker Street Potters Bar Hertfordshire EN6 2DZ

    Received 3 Feb 2023
  2. Decided23/0193/FUL

    Installation of all weather artificial pitch and 1.2m high rebound side boards.

    Bhaktivedanta Manor Primary School Hartspring Cottage Elton Way Watford Hertfordshire WD25 8HB

    Received 3 Feb 2023
  3. Decided23/0194/HSE

    Conversion of loft to habitable space to include insertion of two rear dormers and associated internal alterations.

    5 Earls Corner Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PF

    Received 6 Feb 2023
  4. Decided23/0195/DOC

    Application for approval of details reserved by condition 11 (surface water drainage) of planning permission reference 20/0315/FULEI.

    Land East Of Rowley Lane Borehamwood Hertfordshire

    Received 2 Feb 2023
  5. Decided23/0196/HSE

    Single storey side extension.

    35 Pinewood Close Borehamwood Hertfordshire WD6 5NU

    Received 3 Feb 2023
  6. Decided23/0197/HSE

    First floor side extension with pitched roof and 2 rooflights.

    2 Reddings Avenue Bushey Hertfordshire WD23 3PB

    Received 3 Feb 2023
  7. Decided23/0198/HSE

    Demolition of existing side structures, construction of a two storey side extension with new integral garage, single story rear extension and alterations to fenestration to include 2 x front roof lights.

    129 Cowley Hill Borehamwood Hertfordshire WD6 5NA

    Received 6 Feb 2023
  8. Decided23/0199/HSE

    Demolition of existing rear extension, construction of single storey rear extension, single storey side extension to include new front entrance and alterations to fenestration.

    43 Cobden Hill Radlett Hertfordshire WD7 7JL

    Received 6 Feb 2023
  9. Decided23/0200/DOC

    Application for approval of details reserved by condition 5 (Arboricultural Method Statement) of planning permission reference 22/1865/FUL

    Argosy The Avenue Bushey Hertfordshire WD23 2LL

    Received 3 Feb 2023
  10. Decided23/0201/CLP

    Construction of a rear dormer extension to create additional habitable space at first floor level and insertion of 2 x front roof lights. Certificate of Lawful Development (Proposed).

    23 Robert Close Potters Bar Hertfordshire EN6 2DH

    Received 3 Feb 2023
  11. Decided23/0202/FUL

    Change of use from a former education centre to office use.

    Former Education Centre Building Within Bushey Heath Reservoir Site Off Windmill Lane Bushey Heath Hertfordshire

    Received 3 Feb 2023
  12. Decided23/0203/TPO

    G2 2no. OAK. Crown lift to crown break only and crown thin by 15% remove epicormic growth.

    8 Blattner Close Elstree Borehamwood Hertfordshire WD6 3PD

    Received 8 Feb 2023
  13. Decided23/0204/TPO

    G1 2no. OAK. Crown lift to crown break only and crown thin by 15% remove epicormic growth.

    9 Blattner Close Elstree Borehamwood Hertfordshire WD6 3PD

    Received 8 Feb 2023
  14. Decided23/0205/TPO

    T21 OAK. Crown lift to crown break only and crown thin by 15% remove epicormic growth.

    10 Blattner Close Elstree Borehamwood Hertfordshire WD6 3PD

    Received 8 Feb 2023
  15. Decided23/0206/TPO

    T1 ASH. Crown reduce by 1.5m height and 1.5m width to leave a height of 7m and width of 5m.

    63 Hartfield Avenue Elstree Borehamwood Hertfordshire WD6 3JJ

    Received 8 Feb 2023
  16. Decided23/0207/HSE

    Installation of air conditioning and air source heat pump units to rear flat roof (retrospective application).

    80 Billy Lows Lane Potters Bar Hertfordshire EN6 1XL

    Received 6 Feb 2023
  17. Decided23/0209/HSE

    Part demolition of existing ground floor areas and rear conservatory. Construction of a part single, part two storey side and rear extension with alterations to fenestration, new front porch canopy and erection of a single storey detached outbuilding to rear garden (Amended plans received 02.06.23 and 02.08.23).

    1 Gables Avenue Borehamwood Hertfordshire WD6 4SP

    Received 6 Feb 2023
  18. Decided23/0211/CLP

    Conversion of loft to form habitable space including hip to gable roof alterations, rear dormer and 2 roof lights to front. Certificate of Lawful Development (Proposed).

    77 Hillside Avenue Borehamwood Hertfordshire WD6 1HQ

    Received 7 Feb 2023
  19. Decided23/0212/FUL

    Change of use of Agricultural building to Class E(d) gym use with parking, refuse/recycle and cycle storages.

    Lower Kitts End Farm Kitts End Road Barnet Hertfordshire EN5 4RL

    Received 7 Feb 2023
  20. Decided23/0213/HSE

    Single storey rear extension. (Accompanying Listed building application 23/0214/LBC) (AMENDED PLAN RECEIVED: 06/04/2023 - change in materials)

    Brew Cottage Otterspool Lane Aldenham Watford Hertfordshire WD25 8AX

    Received 8 Feb 2023
  21. Decided23/0214/LBC

    Single storey rear extension. (Listed Building Consent) (Accompanying Householder application 23/0213/HSE) (AMENDED PLAN RECEIVED: 06/04/2023 - change in materials)

    Brew Cottage Otterspool Lane Aldenham Watford Hertfordshire WD25 8AX

    Received 8 Feb 2023
  22. Decided23/0215/TPO

    T002 OAK Reduce limbs back from powerline by up to 3m. T027 OAK. Remove small limb rubbing on most Easterly stem at approx. 4m. T029 PENDULATE OAK. Remove all dead wood over 2.5 cm in diameter and remove any significant crossing limbs. T037 OAK. Crown reduce by up to 5m. T043 ASH. Remove lower limb to the east back to or near to the main Union. Reduce the height of the central limb with habitat holes to approx. 1m above the habitat holes. Reduce the remaining crown by 30%.T079 CHERRY. Crown reduce by1.5m and crown thin by 20%. T094 HORNBEAM. Reduce to 5m T095 GREY WILLOW. Fell. T100 OAK. Fell. Please see attached tree report for all work and tree specifications and locations.

    Manor Lodge School Ridge Hill Shenley Radlett Hertfordshire WD7 9BG

    Received 9 Feb 2023
  23. Decided23/0216/FUL

    Demolition of existing dwelling and construction of replacement detached, 6 bed dwelling with habitable loft accommodation and associated new boundary treatment.

    44 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PN

    Received 8 Feb 2023
  24. Unknown23/0217/MA

    Application for a non-material amendment to allow for internal alterations and enlarged opening following the grant of planning permission ref 22/2101/HSE.

    32 Alexandra Road Borehamwood Hertfordshire WD6 5PB

    Received 8 Feb 2023

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

  • 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.

    UK research
    Published Updated

  • 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 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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