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

6,083Searchable applications

440Recorded as pending

83%Approval rate · 4,102 approved or refused records

689Refused applications

3,413 approved · 689 refused · 318 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Decided23/0989/PD42
Single storey rear extension. Depth: 6m, Height: 4m, Eaves: 2.75m.
64 Dugdale Hill Lane Potters Bar Hertfordshire EN6 2DN
Received 7 Jul 2023
Decided23/0990/TRC
T4 DOWNY BIRCH. Fell.
23 The Grove Radlett Hertfordshire WD7 7NF
Received 10 Jul 2023
Decided23/0991/HSE
Construction of single storey rear extension with flat roof and roof lantern, and detached outbuilding to rear garden.
7 Fenton Close Potters Bar Hertfordshire EN6 5EY
Received 7 Jul 2023
Decided23/0992/CLP
Conversion of loft to habitable room with rear dormer and roof lights to the front and rear elevations. Certificate of Lawful Development (Proposed)
11 Phillimore Place Radlett Hertfordshire WD7 8NH
Received 7 Jul 2023
Decided23/0993/HSE
Construction of a part single, part two storey rear extension and alterations to fenestration.
9 Essex Road Borehamwood Hertfordshire WD6 1BP
Received 10 Jul 2023
Decided23/0994/CLP
Conversion of loft to habitable space with hip to gable roof alterations to include rear dormer with Juliet balcony and insertion of 3 x front roof lights. Certificate of Lawful Development (Proposed).
9 Essex Road Borehamwood Hertfordshire WD6 1BP
Received 10 Jul 2023
Decided23/0995/HSE
Conversion of loft to habitable space with associated roof alterations to include an increase in ridge height, roof extension, and insertion of 2 x rear roof lights and 2 x side roof lights (revised application).
66 Shenley Hill Radlett Hertfordshire WD7 7BD
Received 10 Jul 2023
Decided23/0996/PD42
Single storey rear extension. Depth: 5.5m, Height: 3m, Eaves: 2.9m.
9 Essex Road Borehamwood Hertfordshire WD6 1BP
Received 10 Jul 2023
Decided23/0997/FUL
Construction of pergola structures to the rear with a raised patio/platform including access steps and balustrading and removal of ground floor rear doors/windows with new bi-folding doors (following part demolition of existing patio/stepped access).
Kiss Kiss High Street Elstree Borehamwood Hertfordshire WD6 3EU
Received 10 Jul 2023
Decided23/0998/HSE
Removal of oil tank and installation of 2x air source heat pumps. (Associated Listed Building Consent application under 23/0999/LBC)
Nell Gwynne Cottage Salisbury Hall Drive London Colney St Albans Hertfordshire AL2 1BU
Received 10 Jul 2023
Decided23/0999/LBC
Removal of oil tank and installation of 2x air source heat pumps. (Application for Listed Building Consent) (Accompanying householder application under 23/0998/HSE)
Nell Gwynne Cottage Salisbury Hall Drive London Colney St Albans Hertfordshire AL2 1BU
Received 10 Jul 2023
Decided23/1000/CLE
Retention of existing outbuilding in rear garden. Certificate of Lawful Development (Existing).
12 Ash Hill Close Bushey Hertfordshire WD23 1BW
Received 10 Jul 2023
Decided23/1001/TPO
A1 MiIXED SPECIES. Crown lift by 3m. approx to clear the footpath. T2 HOLLY. Fell. T3; T4; T5; T7; T8;T21;T32; T33; T34; T36 LIME. 10 no. LIMES. Remove basal and epicormic growth to leave 5.0 M clear stem. T9 CEDAR. Prune back branches to leave 1.0 M clearance from telephone line. T35 BEECH. Remove the epicormic basal growth and clear the stem of epicormic growth to a height of 5m.
Fuller Close Bushey Hertfordshire WD23 4JD
Received 11 Jul 2023
Decided23/1002/TRC
T1 HOLM OAK. Remove close to ground level. T4 HOLM OAK. Remove close to ground level. T5 BEECH. Remove close to ground level. G7 MIXED. Remove close to ground level. T9 HOLLY. Remove close to ground level. T10 WESTERN RED CEDAR. Remove close to ground level.
174 High Road Bushey Heath Bushey Hertfordshire WD23 1NP
Received 11 Jul 2023
Decided23/1003/FUL
Redevelopment of existing site to provide residential development (Use Class C3) with commercial space at ground floor (Class E) with associated amenity space, car parking, cycle storage and landscaping.
Potters Bar Railway Station Car Park Darkes Lane Potters Bar Hertfordshire
Received 10 Jul 2023
Decided23/1004/CLP
Conversion of loft to habitable space with new rear dormer and construction of 2 x outbuildings ancillary to the main house. Certificate of Lawful Development (Proposed)
15 Gables Avenue Borehamwood Hertfordshire WD6 4SP
Received 11 Jul 2023
Unknown23/1005/MA
Application for a non-material amendment to allow for removal of cladding requirement and amendment to external colour of property following the grant of planning permission ref 21/2420/FUL
4 Harris Lane Shenley Radlett Hertfordshire WD7 9EB
Received 11 Jul 2023
Decided23/1006/TPO
T26 OAK. Fell. T69 SYCAMORE. Pollard to stump. T157 LIME. Cut growth at the base. T216 and T221 2no. ASH. Fell.
Wall Hall Estate Wall Hall Drive Aldenham Hertfordshire
Received 11 Jul 2023
Decided23/1007/HSE
Construction of part single, part two storey side and rear extension and first floor side extension. (AMENDED PLAN RECEIVED: 01/09/2023 - site plan to show 45 degree line)
41 Homefield Road Radlett Hertfordshire WD7 8PX
Received 11 Jul 2023
Unknown23/1008/MA
Application for a non-material amendment to allow for adjustment to building position and changes to site plan following the grant of planning permission ref 19/0213/FUL
Former Garage Site South Of 77 Eldon Avenue Borehamwood Hertfordshire
Received 11 Jul 2023
Decided23/1009/FUL
Construction of a two-storey detached dwellinghouse (following demolition of the existing dwelling); hard/soft landscaping including boundary treatment; private amenity space; car parking; refuse/recycle storage and cycle storage.
8 Williams Way Radlett Hertfordshire WD7 7EZ
Received 11 Jul 2023
Unknown23/1010/PD56O
Installation of 15.0m 5G phase 8 monopole, 10 x paving slabs, 3 x cabinets and associated ancillary works.
Telecommunications Equipment At The Junction Of Croxdale Road And Theobald Street Borehamwood Hertfordshire
Received 11 Jul 2023
Decided23/1011/TRC
T1 UNKNOWN SPECIES. Fell.
47 Elmroyd Avenue Potters Bar Hertfordshire EN6 2EF
Received 12 Jul 2023
Decided23/1012/FUL
Fenestration changes to front elevation to include removal of existing window, and insertion of 3 x light sliding sash and 2 x fixed lights with sliding centre sash.
114 - 116 Watling Street Radlett Hertfordshire WD7 7AB
Received 12 Jul 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