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

6,262Searchable applications

440Recorded as pending

83%Approval rate · 4,245 approved or refused records

716Refused applications

3,529 approved · 716 refused · 329 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided23/1529/HSE
Regularisation of replacement front gate.
Nelson Cottage Rowley Lane Borehamwood Hertfordshire WD6 5PD
Received 27 Oct 2023
Decided23/1530/HSE
Regularisation of existing external brick appearance used on two storey side and rear extension. (Associated Listed Building application 23/1531/LBC) (AMENDED PLANS RECEIVED: 07/12/2023 - plans annotated to show the external brick work would be painted white).
Nelson Cottage Rowley Lane Borehamwood Hertfordshire WD6 5PD
Received 27 Oct 2023
Decided23/1531/LBC
Regularisation of existing external brick appearance used on two storey side and rear extension. (Application for Listed Building Consent) (Associated Householder application 23/1530/HSE) (AMENDED PLANS RECEIVED: 07/12/2023 - plans annotated to show the external brick work would be painted white).
Nelson Cottage Rowley Lane Borehamwood Hertfordshire WD6 5PD
Received 27 Oct 2023
Decided23/1532/HSE
Conversion of loft to habitable space with associated roof alterations, to include side pitched roof extension over existing flat roof, rear dormer and insertion of 3x front rooflights and 1x rooflight to each side. Construction of single storey rear extension, reconstruction of front porch, and alterations to fenestration and rear wall details.
12 Rose Lawn Bushey Heath Bushey Hertfordshire WD23 1HW
Received 27 Oct 2023
Decided23/1533/HSE
Single storey side and rear extension, construction of new rear patio area with steps. (Amended plans received: 04.04.2024)
163 Cranborne Crescent Potters Bar Hertfordshire EN6 3AF
Received 27 Oct 2023
Decided23/1534/CLP
Construction of single story front extension to facilitate downstairs WC for disabled occupant. Certificate of Lawful Development (Proposed).
68 Thornbury Gardens Borehamwood Hertfordshire WD6 1RE
Received 27 Oct 2023
Unknown23/1535/MA
Application for a non-material amendment to allow for amendment of front dormer window roofs from flat to curved, amendment to entrance portico and decrease in floor levels following the grant of planning permission ref 21/1804/FUL.
7 Hartsbourne Avenue Bushey Heath Bushey Hertfordshire WD23 1JP
Received 27 Oct 2023
Decided23/1536/HSE
Conversion of loft to habitable space with associated roof alterations to include crown roof, 2x gables to front and rear, insertion of 1x front and rear rooflights and 2x rooflights to each side. Conversion of garage to habitable space. Construction of part single, part two storey front extension to include new porch and front entrance. Construction of lower ground, part ground and part first floor rear extension following demolition of existing garden room. Alterations to fenestration and removal of chimney stack.
7 Beech Avenue Radlett Hertfordshire WD7 7DD
Received 27 Oct 2023
Decided23/1537/CLP
Garage conversion into habitable space including removal of garage door and insertion of window and changes to fenestration at the rear. Certificate of Lawful Development (Proposed).
34 Little Potters Bushey Hertfordshire WD23 4QT
Received 27 Oct 2023
Decided23/1538/TPO
T1 OAK. Lateral reduction on horizontal limbs overhanging garden of 20 Field View Road by removing 2.5m from 10.5m to 8m spread
82 Elmroyd Avenue Potters Bar Hertfordshire EN6 2EF
Received 30 Oct 2023
Decided23/1542/HSE
Demolition of existing conservatory and construction of single storey rear extension to include single roof light.
66 Scottswood Road Bushey Hertfordshire WD23 2DN
Received 30 Oct 2023
Decided23/1544/HSE
Single storey rear extension to include 2 x roof lights.
36 Harris Lane Shenley Radlett Hertfordshire WD7 9EG
Received 30 Oct 2023
Decided23/1545/HSE
Removal of conifer hedge section from side boundary and installation of replacement high vertical close-boarded timber fence bordering footway. (AMENDED PLAN RECEIVED: 21/11/2023 - updated location plan)
193 Aycliffe Road Borehamwood Hertfordshire WD6 4AU
Received 30 Oct 2023
Decided23/1546/DOC
Application for approval of details reserved by condition 4 (Arboricultural impact assessment and tree protection plan) of planning permission reference 23/0933/HSE.
Timins Hilfield Lane South Bushey Hertfordshire WD23 4EL
Received 31 Oct 2023
Decided23/1548/CLP
Proposed provision of twin-unit mobile home within rear garden for use of additional accommodation Certificate of Lawful Development (Proposed)
41 Aldenham Avenue Radlett Hertfordshire WD7 8HZ
Received 31 Oct 2023
Decided23/1553/HSE
Construction of a single storey front porch extension and alterations to first floor front window.
1 Stangate Crescent Borehamwood Hertfordshire WD6 2PZ
Received 1 Nov 2023
Decided23/1554/HSE
Construction of a single storey rear infill extension in orangery style, with glass roof lantern. (Associated LBC application under reference 23/1555/LBC).
The Fourtrees Common Lane Letchmore Heath Watford Hertfordshire WD25 8EE
Received 1 Nov 2023
Decided23/1555/LBC
Construction of a single storey rear infill extension in orangery style, with glass roof lantern. (Application for Listed Building Consent and associated HSE application under reference 23/1554/HSE).
The Fourtrees Common Lane Letchmore Heath Watford Hertfordshire WD25 8EE
Received 1 Nov 2023
Decided23/1556/HSE
Construction of a single storey side conservatory extension.
1 Stangate Crescent Borehamwood Hertfordshire WD6 2PZ
Received 1 Nov 2023
Decided23/1557/HSE
Single and two storey side extensions, front gable extension and dormer alteration, first floor rear extension, conversion of garage to habitable space, front porch and alterations to fenestration and materiality. Terracing work to sloping rear garden.
9 Medow Mead Radlett Hertfordshire WD7 8ES
Received 1 Nov 2023
Decided23/1560/HSE
Conversion of garage to habitable space including alterations to fenestration.
32 Barham Avenue Elstree Borehamwood Hertfordshire WD6 3PN
Received 1 Nov 2023
Decided23/1562/FUL
Erection of cricket nets.
St Margarets School Merry Hill Road Bushey Hertfordshire WD23 1DT
Received 2 Nov 2023
Decided23/1563/DOC
Application for approval of details reserved by conditions 3 (Arboricultural method statement) and 4 (soft landscaping) of planning permission reference 23/0938/HSE.
Hilfield View 24A Wayside Avenue Bushey Hertfordshire WD23 4SQ
Received 2 Nov 2023
Decided23/1564/HSE
Single storey front/side extension with patio/terrace (following demolition of outbuilding and shed); alteration of an existing first floor front window and new first floor front window.
70 Thornbury Gardens Borehamwood Hertfordshire WD6 1RE
Received 3 Nov 2023

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