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

6,028Searchable applications

440Recorded as pending

83%Approval rate · 4,063 approved or refused records

682Refused applications

3,381 approved · 682 refused · 314 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 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

Decided23/0823/HSE
Demolition of existing garage, construction of a two storey side extension, two storey front extension and single storey rear extension to include relocated front entrance with canopy and associated alterations to fenestration. Conversion of loft to habitable space to include an increase in ridge height, 4 x rear dormer windows, insertion of a roof light to both side elevations and chimney stack removal. Associated landscaping to include raised patio area to rear garden, and front boundary works to include re-paved driveway and new front boundary wall with brick piers and metal railings.
38 Newlands Avenue Radlett Hertfordshire WD7 8EL
Received 5 Jun 2023
Decided23/0824/VOC
Application for variation of condition 2 (approved plans) to allow for reduction of ground level and revised site levels, relocation of outdoor amenity space, flat roof alterations to rear outbuilding and amendments to the Tree Protection Fencing following grant of planning permission 22/0639/FUL.
43 Goodyers Avenue Radlett Hertfordshire WD7 8AZ
Received 5 Jun 2023
Unknown23/0825/PD56O
Installation of 22.5m high 5G monopole supporting 6 x antennas on an open headframe, 2 x dishes together with the addition of 3 x equipment cabinets, 1 x meter cabinet and ancillary development thereto within a compound formed by a 2.1m high palisade fence.
Telecommunications Equipment On Land At National Animal Welfare Trust Tylers Way Watford Hertfordshire
Received 6 Jun 2023
Decided23/0826/HSE
Single storey rear extension to lower ground floor, replacement rear sunroom and terrace above rear extension to lower ground floor. New sauna/steam room in existing external brick outbuilding. Enlarged habitable space at loft level with associated roof alterations to include enlarged rear dormer with Juliet balcony, insertion of roof light to each side and removal of centre front roof light. Partial conversion of existing detached garage to form habitable space for use as an annex. (AMENDED PLANS RECEIVED: 27/07/2023 - boundary treatment plans) (AMENDED PLANS RECEIVED: 11/08/2023 - front boundary treatment omitted from proposal).
7 Heath Road Potters Bar Hertfordshire EN6 1LQ
Received 6 Jun 2023
Decided23/0829/DOC
Application for approval of details reserved by conditions 3 (landscaping plan), 4 (details of walls, fencing & means of enclosure), 9 (sustainability statement) and 11 (sample of materials) of planning permission reference 22/2156/FUL
55 Allum Lane Elstree Borehamwood Hertfordshire WD6 3NH
Received 6 Jun 2023
Decided23/0830/HSE
Part single part two storey front and rear extensions, enlarged second floor with associated roof alterations including additional chimney stack, raised ridge height, rear dormer, insertion of front roof light and roof lights to each side elevation, conversion of garage to habitable space, single storey front portico extension and fenestration alterations.
8 The Ridgeway Radlett Hertfordshire WD7 8PR
Received 6 Jun 2023
Decided23/0831/FUL
Demolition of existing building and erection of replacement detached two storey building, comprising of 2 x commercial units (Use Class E) to the frontage at ground floor level and 3 x residential units (2 x 1 bed at first floor level & 1 x 2 bed at ground floor level) with associated landscaping, access, parking and amenity space.
102 - 104 London Road Shenley Radlett Hertfordshire WD7 9BS
Received 6 Jun 2023
Decided23/0832/TPO
T26 HORSE CHESTNUT. Fell. T27 HORSE CHESTNUT. Reduce 1m width and 1m height to leave a final height of 10m and spread of 6m. T24 OAK. Reduce 1m width and 1m height to leave a final height of 10m and spread of 6m. .
Block G Clare Hall Laboratories Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3LD
Received 7 Jun 2023
Decided23/0833/DOC
Application for approval of details reserved by condition 7 (construction management plan) of planning permission reference 21/1180/VOC and APP/N1920/W/22/3300938
Spylaw House Newlands Avenue Radlett Hertfordshire WD7 8EL
Received 7 Jun 2023
Decided23/0834/HSE
Single storey side extension with roof lantern, following demolition of existing outbuilding
82 Oakroyd Avenue Potters Bar Hertfordshire EN6 2EN
Received 7 Jun 2023
Decided23/0835/HSE
Single storey side and rear extension with pitched roof and 4 x roof lights (Amended Plans received 9th August 2023)
21 Wren Crescent Bushey Hertfordshire WD23 1AN
Received 7 Jun 2023
Decided23/0836/HSE
Installation of a dropped kerb and vehicle crossover.
300 Theobald Street Borehamwood Hertfordshire WD6 4PG
Received 7 Jun 2023
Decided23/0837/DOC
Application for approval of details reserved by condition 8 (water supply scheme) of planning permission reference 21/1512/FUL
County End Magpie Hall Road Bushey Heath Bushey WD23 1NY
Received 7 Jun 2023
Decided23/0838/CLP
Conversion of loft to habitable space to include insertion of 1 x front roof light, 3 x rear roof lights and insertion of 2 x windows to side elevation. Certificate of Lawful Development (Proposed).
6 The Clover Field Bushey Hertfordshire WD23 1DN
Received 8 Jun 2023
Decided23/0839/TPO
T1 HORSE CHESTNUT. Reduce by 3-4m from 12m. Excessive shading caused by growing against the building.
2 Christchurch Crescent Radlett Hertfordshire WD7 8AH
Received 8 Jun 2023
Decided23/0840/PD56O
Installation of 25m 5G monopole supporting 6 x antennas, 1 x 300mm dish, 1 x 600mm dish, 1 x equipment cabinet, 1 x metre cabinet within a fence compound along with associated ancillary development.
Telecommunications Equipment At Salters Field Part Of King George V Fields Watling Street Radlett Hertfordshire
Received 8 Jun 2023
Decided23/0841/DOC
Application for approval of details reserved by condition 3 (sample of materials) of planning permission reference 22/2143/LBC.
The Mansion Wrotham Park Barnet Hertfordshire EN5 4SB
Received 8 Jun 2023
Decided23/0842/HSE
Alterations to the front landscaping including the removal of soil and hedges and erection of retaining wall.
136 Watling Street Radlett Hertfordshire WD7 7JH
Received 8 Jun 2023
Decided23/0843/ADV
Installation of 1 x externally illuminated fascia signs, 5x hoarding signs, 1x projecting sign, 1x postercase, 2x disclaimer signs, 2x lanterns, 6x LED floodlights. (Application for Advertisement Consent).
Kiss Kiss High Street Elstree Borehamwood Hertfordshire WD6 3EU
Received 8 Jun 2023
Decided23/0844/PD28O
Installation of hard surfacing to existing farm track (Application for Prior Notification).
Hill Farm Watling Street Radlett Hertfordshire WD7 7HP
Received 8 Jun 2023
Decided23/0845/HSE
Demolition of existing garage, proposed single storey side and rear extensions with raised roof over existing kitchen area and new front porch with alterations to front fenestration (Revised application)
21 Oundle Avenue Bushey Hertfordshire WD23 4QG
Received 8 Jun 2023
Decided23/0846/HSE
Single storey front and rear extensions.
25 Springfield Bushey Heath Bushey Hertfordshire WD23 1GL
Received 9 Jun 2023
Unknown23/0847/MA
Application for a non-material amendment to allow for a change in driveway materials following the grant of planning permission ref 21/0972/FUL
Site Of Former 16 Allum Lane Elstree Hertfordshire
Received 8 Jun 2023
Decided23/0848/TPO
T1 BLUE ATLAS CEDAR. Selectively prune to suitable growth points. Lateral branches to achieve 2m clearance. Reduce overextended limb to E elevation to its 2nd growth points. The tree is approx.15m in height and spread is approx. 18m plus N/S and 13m E/W. T1 and T2 2no. THUJA (WESTERN RED CEDARS). Selectively prune to suitable growth points. Reduce branches encroaching on building to achieve 2m clearance. Annotated photographs.
Kemprow Farm Kemprow Aldenham Watford Hertfordshire WD25 8NR
Received 9 Jun 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.
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