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

6,394Searchable applications

440Recorded as pending

83%Approval rate · 4,338 approved or refused records

729Refused applications

3,609 approved · 729 refused · 335 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 Control Contact planning Planning Permission Advice Local plan Draft Local Plan 2026: A new sustainable Local Plan for Hertsmere Pre-application advice Pre-Application Advice Article 4 directions Article 4 Directions - Conservation

Council contacts

Planning enquiries02082072277 Council source

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

Decided24/0179/HSE
Demolition of existing conservatory and construction of two storey side and rear extension to include alterations to fenestration, 5x rooflights and roof alterations to rear.
33 Peregrine Close Watford Hertfordshire WD25 9AP
Received 8 Feb 2024
Decided24/0180/FUL
Change of use of vacant office to residential maisonette. (Retrospective application)
6A Furzehill Parade Shenley Road Borehamwood Hertfordshire WD6 1DX
Received 8 Feb 2024
Decided24/0181/PD42
Single storey rear extension Depth: 3m, Height: 2.9m, Eaves: 2.3m.
25 Danziger Way Borehamwood Hertfordshire WD6 5DA
Received 8 Feb 2024
Decided24/0182/TRC
Remove LAWSONIA and HOLLY within hedge. Replant with YEW hedging.
16 Loom Lane Radlett Hertfordshire WD7 8AD
Received 8 Feb 2024
Decided24/0183/HSE
Demolition of existing garage and single storey rear extension and construction of single storey side and rear extension to include 1x rooflight and extension to front canopy.
83 Hatfield Road Potters Bar Hertfordshire EN6 1HZ
Received 8 Feb 2024
Decided24/0184/HSE
Demolition of garage and single storey rear extension and construction of part single part two storey side and rear extension with associated roof alterations to include 1x rooflight, extension to front canopy and removal of chimney stack.
83 Hatfield Road Potters Bar Hertfordshire EN6 1HZ
Received 8 Feb 2024
Decided24/0185/CLP
Conversion of loft to habitable room with new roof, including hip to gable roof alterations, rear dormer and insertion of 3 x front rooflights, and removal of chimney stack. Certificate of Lawful Development (Proposed).
2 Hartfield Close Elstree Borehamwood Hertfordshire WD6 3JD
Received 9 Feb 2024
Decided24/0187/DOC
Application for approval of details reserved by condition 7 (Schedule of internal surface materials, internal and external joinery) of planning permission reference 21/1206/LBC.
Wild Farm Harper Lane Radlett WD7 9HJ
Received 9 Feb 2024
Decided24/0188/DOC
Application for approval of details reserved by condition 10 (Schedule of internal surface materials, internal and external joinery) of planning permission reference 21/1205/HSE.
Wild Farm Harper Lane Radlett WD7 9HJ
Received 9 Feb 2024
Decided24/0189/HSE
Part single part two storey rear extension and erection of outbuilding in rear garden.
50 Bullhead Road Borehamwood Hertfordshire WD6 1HT
Received 9 Feb 2024
Decided24/0190/PD42
Single storey rear extension. Depth: 6.00m, Height: 3.00m, Eaves: 2.85m.
61 Whitehouse Avenue Borehamwood Hertfordshire WD6 1HA
Received 9 Feb 2024
Decided24/0191/CLP
Single storey rear extension with alterations to fenestration and erection of outbuilding in garden. Certificate of Lawful Development (Proposed).
Alexandra Cottage Woodhall Lane Shenley Radlett Hertfordshire WD7 9AU
Received 9 Feb 2024
Decided24/0192/DOC
Application for approval of details reserved by Conditions 3 (External Materials), 5 (Hard and Soft Landscaping including Boundary Treatment), 6 (Refuse Storage), and 10 (Tree Protection) of planning permission reference 23/1009/FUL.
8 Williams Way Radlett Hertfordshire WD7 7EZ
Received 9 Feb 2024
Decided24/0193/DOC
Application for approval of details reserved by condition 9 (landscaping details) of planning permission reference 20/0457/FUL.
The Old Engine Shed Brickfields Watling Street Radlett Hertfordshire WD7 8BS
Received 9 Feb 2024
Decided24/0194/FUL
Erection of new Automation Training Cabin.
Bio Products Laboratory Dagger Lane Elstree Borehamwood Hertfordshire WD6 3BX
Received 9 Feb 2024
Decided24/0195/FUL
Removal of 8no. existing cabins, relocation of 4no. welfare cabins, relocation of store cabins, relocation of 2no. office cabins, installation of 1no. two storey welfare cabin and installation of 2no. contractor cabins. (Amended plans and description)
Bio Products Laboratory Dagger Lane Elstree Borehamwood Hertfordshire WD6 3BX
Received 9 Feb 2024
Decided24/0196/HSE
Conversion of loft to habitable space with roof alterations to include increase in ridge height, insertion of 3 x rear dormer windows, insertion of roof lights to front and both side elevations, and chimney stack removal.
9 Aldenham Avenue Radlett Hertfordshire WD7 8HZ
Received 9 Feb 2024
Decided24/0197/HSE
Construction of a part single part two storey rear extension and single storey front extension with pitched roof and 3 x rooflights, and alterations to fenestration. (Revision to approved application 23/1134/HSE.)
5 Kenilworth Close Borehamwood Hertfordshire WD6 1QF
Received 9 Feb 2024
Decided24/0198/HSE
Part Retrospective application for: Parapet walls on ground floor rear extension, air-conditioning units and lean to roof over side passage.
18 Craigweil Avenue Radlett Hertfordshire WD7 7EX
Received 12 Feb 2024
Decided24/0199/FUL
Erection of detached three storey 4x bed dwelling including accommodation at loft level following subdivision of plot at 61 High Street.
61 High Street Bushey Hertfordshire WD23 1BL
Received 12 Feb 2024
Decided24/0200/DOC
Application for approval of details reserved by condition 3 (details of side boundary treatments) of planning permission reference 22/0966/HSE.
103 Newberries Avenue Radlett Hertfordshire WD7 7EN
Received 12 Feb 2024
Unknown24/0201/TRC
T1 HORSE CHESTNUT. Reduce by up to 2.5m. As per annotated photograph.
9 Oakroyd Avenue Potters Bar Hertfordshire EN6 2EH
Received 13 Feb 2024
Unknown24/0202/MA
Application for a non-material amendment to allow for aluminium in place of timber window and door frames, and rear roof lantern in place of flat rooflight following the grant of planning permission 23/1460/HSE.
23 The Grove Radlett Hertfordshire WD7 7NF
Received 12 Feb 2024
Decided24/0203/HSE
Two storey rear extension and conversion of loft to habitable space with rear dormer and front roof light.
61 High Street Bushey Hertfordshire WD23 1BL
Received 12 Feb 2024

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
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 6 Aug 2026Updated 13 Sept 2026
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.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

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.

Check collection coverage