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

6,349Searchable applications

440Recorded as pending

83%Approval rate · 4,302 approved or refused records

722Refused applications

3,580 approved · 722 refused · 334 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided24/0016/MA
Application for a non-material amendment to allow for removal of front porch, reduction in size of side extension and construction of open porch following the grant of planning permission reference 23/0845/HSE
21 Oundle Avenue Bushey Hertfordshire WD23 4QG
Received 4 Jan 2024
Decided24/0017/CLP
Conversion of loft to habitable space to include hip to gable roof alteration, rear dormer, insertion of 3x front rooflights and alterations to side fenestration. Certificate of Lawful Development (Proposed).
1 Grosvenor Road Borehamwood Hertfordshire WD6 1BT
Received 5 Jan 2024
Unknown24/0018/PD56M
Change of use of 1st and 2nd floor office space to residential to create 1 x 2 bed apartment.
149 - 151 Sparrows Herne Bushey Hertfordshire WD23 1AQ
Received 4 Jan 2024
Decided24/0019/PD42
Single storey rear extension Depth: 6m, Height: 3m, Eaves: 2.9m
1 Grosvenor Road Borehamwood Hertfordshire WD6 1BT
Received 5 Jan 2024
Decided24/0020/TPO
Within G1. 3no. POPLARS. Fell to 50mm from ground level. (Numbered as G4 in report)
Tesco Stores Ltd And Rear Of 47 WhiteHouse Avenue WD6 1HA Shenley Road Borehamwood Hertfordshire WD6 1JG
Received 8 Jan 2024
Decided24/0021/TRC
4no. ASH. Reduce to approx. 12/15ft. This will include the removal from 30ft of approx.15 ft of growth at their highest points.
2 Scrubbitts Park Road Radlett Hertfordshire WD7 8JW
Received 9 Jan 2024
Decided24/0022/CLP
Construction of single storey rear extension to include alterations to fenestration Certificate of Lawful Development (Proposed).
20A Hartsbourne Avenue Bushey Heath Bushey Hertfordshire WD23 1JL
Received 8 Jan 2024
Decided24/0024/CLP
Single storey side extension with associated alterations to fenestration. Certificate of Lawful Development (Proposed).
20A Hartsbourne Avenue Bushey Heath Bushey Hertfordshire WD23 1JL
Received 8 Jan 2024
Decided24/0025/FUL
Subdivision of land to allow for erection of detached 4x bed two storey dwelling including accommodation at loft level.
23 Heath Drive Potters Bar Hertfordshire EN6 1EN
Received 8 Jan 2024
Decided24/0026/TRC
T1 EUCALYPTUS. Crown reduce from 15m by approx. 4m. Retain lower canopy by only selectively reducing over extended branches. T2 EUCALYPTUS. Crown reduce from 8m by approx 2m from height and 1m from the sides pruning to suitable growth points.
Orchard Mead Crossoaks Lane Ridge Potters Bar Hertfordshire EN6 3LH
Received 9 Jan 2024
Decided24/0028/HSE
Demolition of existing conservatory and construction of rear infill extension to include alterations to fenestration.
1 The Rise Elstree Borehamwood Hertfordshire WD6 3JR
Received 9 Jan 2024
Decided24/0029/HSE
Front and rear dormers (including conversion of roofspace into habitable use).
1 Ranworth Gardens Potters Bar Hertfordshire EN6 3DP
Received 8 Jan 2024
Decided24/0031/TPO
T19 BEECH. Reduce the tree by 2m from an estimated height of 12.75m to leave a final height of 10.75m thereby reducing the crown spread by approx. 2m. See attached survey.
20 Woodlands Road Bushey Hertfordshire WD23 2LR
Received 9 Jan 2024
Decided24/0032/HSE
Demolition of existing garage and construction of a single storey side and rear extension. (Amended plans received: 08/04/2024)
54 Cranborne Crescent Potters Bar Hertfordshire EN6 3AG
Received 8 Jan 2024
Decided24/0034/PD42
Single storey rear extension. Depth: 6.50m, Height: 3.50m, Eaves: 3.10m
42 Williams Way Radlett Hertfordshire WD7 7HB
Received 8 Jan 2024
Decided24/0035/HSE
Conversion of loft to habitable room with insertion of 3 x rooflights to north elevation, and associated internal alterations. (Associated application for Listed Building Consent 24/0036/LBC)
2 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PN
Received 9 Jan 2024
Decided24/0036/LBC
Conversion of loft to habitable room with insertion of 3 x rooflights to north elevation, and associated internal alterations. (Associated Householder application 24/0035/HSE)
2 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PN
Received 9 Jan 2024
Decided24/0037/HSE
Front porch extension (following demolition of existing porch); single storey side/rear extension (following demolition of side/rear storage additions); part single, part two-storey rear extension (following demolition of rear conservatory and storage buildings); new first floor side window; removal of chimney; partially raised patio. (Revised application.)
99 Hillside Avenue Borehamwood Hertfordshire WD6 1HH
Received 9 Jan 2024
Decided24/0038/FUL
Demolition of existing dwelling & erection of replacement 6 bed detached dwelling with integral garage & lower ground accommodation with underground swimming pool and outdoor hot tub (following grant of planning applications 14/0396/FUL, 17/1011/FUL, & 20/1671/FUL).
Elangeni Loom Lane Radlett Hertfordshire WD7 8AB
Received 9 Jan 2024
Decided24/0039/PD42
Demolition of existing conservatory and construction of single storey rear extension. Depth: 5.90m, Height: 2.99m, Eaves: 2.99m.
2 Essex Road Borehamwood Hertfordshire WD6 1BP
Received 8 Jan 2024
Decided24/0040/HSE
Single storey front extension with re-location of entrance, part single part-two storey side and rear extension. (Amended description and plans)
186 Bullhead Road Borehamwood Hertfordshire WD6 1RJ
Received 9 Jan 2024
Decided24/0041/FUL
Replacement of 6x side windows. (Revised application)
Memorial Hall Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Received 10 Jan 2024
Decided24/0042/HSE
Demolition of existing garage, erection of single storey side and rear extensions with raised roof over existing kitchen and open porch to side extension.
21 Oundle Avenue Bushey Hertfordshire WD23 4QG
Received 10 Jan 2024
Decided24/0043/DOC
Application for approval of details reserved by condition 10 (surface water drainage scheme) of planning permission reference 21/2451/FUL and APP/N1920/W/22/3302108.
Churchill House Stirling Way Borehamwood Hertfordshire WD6 2HP
Received 10 Jan 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