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

6,161Searchable applications

440Recorded as pending

83%Approval rate · 4,163 approved or refused records

702Refused applications

3,461 approved · 702 refused · 323 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided23/1195/PD28O
Construction of an agricultural building. (Application for Prior Notification).
Harper Lodge Farm Harper Lane Shenley Radlett WD7 7HU
Received 22 Aug 2023
Decided23/1196/CLP
Erection of rear dormer and construction of single storey side and rear extensions to include insertion of rear roof lights. Certificate of Lawful Development (Proposed).
Annexe At 1 Medburn Cottages Watling Street Elstree Hertfordshire
Received 22 Aug 2023
Unknown23/1198/PD56O
Installation of 15.0m 5G phase 9 slimline monopole and associated ancillary works.
Telecommunications Equipment Adjacent To Stuart Court High Street Elstree Hertfordshire
Received 22 Aug 2023
Decided23/1199/HSE
Single storey rear extension (following demolition of existing side extension) and hard and soft landscaping.
12 The Rose Walk Radlett Hertfordshire WD7 7JS
Received 22 Aug 2023
Decided23/1200/CLP
Conversion of loft into habitable space to include rear dormer and insertion of 3 x front roof lights. Construction of a single storey side extension to include alterations to fenestration. Certificate of Lawful Development (Proposed).
92B Whitehouse Avenue Borehamwood Hertfordshire WD6 1HE
Received 23 Aug 2023
Decided23/1202/HSE
Part single; part two-storey rear extension; single storey front infill extension; single storey side extension; replacement and new ground and first floor front, side and rear windows; demolition of side garage and replacement with a shed structure and fencing; land level changes to the rear and creation of patio and widening of existing two crossovers.
14 Lodge Avenue Elstree Borehamwood Hertfordshire WD6 3ND
Received 23 Aug 2023
Decided23/1203/CLP
Erection of 3 x single storey detached outbuildings. Certificate of Lawful Development (Proposed).
Well End Lodge Well End Road Borehamwood Hertfordshire WD6 5PR
Received 23 Aug 2023
Decided23/1204/HSE
Installation of an air source heat pump
21 Quakers Lane Potters Bar Hertfordshire EN6 1RL
Received 24 Aug 2023
Decided23/1206/CLP
Erection of detached garden outbuilding. Certificate of Lawful Development (Proposed).
84 Ripon Way Borehamwood Hertfordshire WD6 2JA
Received 23 Aug 2023
Decided23/1207/DOC
Application for approval of details reserved by condition 3 (soft landscaping scheme) of planning permission reference 23/0897/FUL.
Argosy The Avenue Bushey Hertfordshire WD23 2LL
Received 24 Aug 2023
Decided23/1208/CLP
Conversion of loft to habitable space with hip to gable roof alterations to include rear dormer and insertion of 3 x front roof lights. Certificate of Lawful Development (Proposed).
52 Masefield Avenue Borehamwood Hertfordshire WD6 2HQ
Received 24 Aug 2023
Decided23/1209/TRC
T1 SORBUS. Fell.W/D Not in the CA.
Children's Play Area Adj To. Hawthorn Cottage Back Lane Letchmore Heath Watford Hertfordshire WD25 8EJ
Received 25 Aug 2023
Decided23/1210/TRC
T1 WILD CHERRY. To be uplifted by 3m to improve the safety site line. T2 NORWAY MAPLE. To be uplifted by 3m for the safety of the public walking underneath.
The Green Adj To The Three Compasses Pegmire Lane Aldenham Watford Hertfordshire WD25 8DR
Received 25 Aug 2023
Decided23/1211/HSE
Demolition of existing rear conservatory and construction of two storey side extension. Alterations to fenestration. (Revised application.)
152 Furzehill Road Borehamwood Hertfordshire WD6 2DX
Received 25 Aug 2023
Decided23/1212/CLP
Conversion of garage to habitable space to include removal of garage door and insertion of window to front elevation. Certificate of Lawful Development (Proposed).
120 Organ Hall Road Borehamwood Hertfordshire WD6 4TL
Received 25 Aug 2023
Decided23/1213/HSE
Retrospective application for construction of single storey rear extension.
22 Birch Grove Potters Bar Hertfordshire EN6 1SY
Received 25 Aug 2023
Decided23/1214/HSE
Construction of a single storey front infill extension, front porch and alterations to fenestration. (Revised application following grant of application 22/0010/HSE.)
117A Theobald Street Borehamwood Hertfordshire WD6 4PT
Received 25 Aug 2023
Decided23/1215/FUL
Front and rear dormers including extension of an existing rear dormer to allow the conversion of the existing flat over first floor and roof level into two separate self-contained flats; rear rooflight and refuse/recycle storages.
51A Shenley Road Borehamwood Hertfordshire WD6 1AE
Received 25 Aug 2023
Decided23/1217/FUL
Removal of front Air Conditioning units and installation with new Air Conditioning units to the rear at ground level and installation of solar panels to the existing roof.
Unit 11 Capital Business Park Manor Way Borehamwood Hertfordshire WD6 1GW
Received 29 Aug 2023
Decided23/1218/PD42
Single storey side and rear extension. Depth: 8m, Height: 3.99m, Eaves: 2.28m.
Annexe At 1 Medburn Cottages Watling Street Elstree Hertfordshire
Received 29 Aug 2023
Decided23/1219/HSE
Conversion of loft to habitable room with hip to gable roof alterations to include rear dormer, Juliette balcony and 2 x front roof lights. Single storey side extension and 1 x rear roof light. Alterations to fenestration. (Revised application)
179 Little Bushey Lane Bushey Hertfordshire WD23 4RX
Received 29 Aug 2023
Decided23/1220/TPO
T15 OAK. Reduce height from 16m to 14.5m and width from 10m to 8.5m.
22 Aspen Place Bushey Heath Bushey Hertfordshire WD23 1FW
Received 30 Aug 2023
Decided23/1223/DOC
Application for approval of details reserved by condition 2 (schedule of materials) of planning permission reference 22/0825/HSE. (AMENDED PLANS RECEIVED: 25/10/2023 - new schedule of materials and proposed elevation plan)
15 Elmroyd Avenue Potters Bar Hertfordshire EN6 2ED
Received 30 Aug 2023
Decided23/1224/DOC
Application for approval of details reserved by conditions 4 (details of materials for hard surfaced areas), 5 (details of walls, fences, access gates or other means of enclosure) and 11 (landscaping scheme) of planning permission reference 23/0141/VOC.
10 And 10A Watford Road Radlett Hertfordshire
Received 30 Aug 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