Planning authority · 2026
Hertsmere planning applications 2026
1,151 public planning records from 2026 in the production OGL dataset, newest first, linked to council source pages.
Applications
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Hertsmere/25/1828/PD42
122 Mead Way Bushey Hertfordshire WD23 2DP
Single storey rear extension. Depth: 4.5m, Height: 2.93m, Eaves: 2.81m.
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Hertsmere/25/1830/CLP
64 Gills Hill Lane Radlett Hertfordshire WD7 8PE
Conversion of loft to habitable space including rear dormer and 4x front roof lights. Certificate of lawful development (Proposed).
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Hertsmere/25/1831/CLP
3 Headingley Close Shenley Radlett Hertfordshire WD7 9HY
Alterations to fenestration to replace the existing windows. Certificate of lawful development (Proposed).
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Hertsmere/26/0017/DOC
1 Howard Drive Borehamwood Hertfordshire WD6 2NY
Application for approval of details reserved by conditions 3 (noise impact assessment), 5 (air quality) and 6 (parking management plan) of planning permission reference 25/1052/FUL.
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Hertsmere/26/0160/FUL
Burness Cottages Aldenham Road Elstree Hertfordshire
Subdivision of single dwelling into 2x dwellings, and alterations to fenestration.
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Hertsmere/25/1219/VOC
7 Pound Lane Shenley Radlett Hertfordshire WD7 9BU
Variation of conditions 3 (window at first floor level), 5 (samples of materials), 6 (details of materials for hard surfaced areas), 7 (approved plans and drawings), 9 (details of provision...
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Hertsmere/25/1439/HSE
44 Mount Grace Road Potters Bar Hertfordshire EN6 1RB
Part single, part two storey side extension and single storey rear extension; alterations to fenestration.
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Hertsmere/25/1798/PD42
19 Gateshead Road Borehamwood Hertfordshire WD6 4NH
Single storey rear extension. Depth: 6.0m, Height: 3.0m, Eaves: 3.0m.
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Hertsmere/25/1809/FUL
Unit 507 Centennial Park Centennial Avenue Elstree Borehamwood Hertfordshire WD6 3FG
Installation of 6x air conditioning compressors to side of building.
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Hertsmere/25/1857/PD42
34 Northfield Road Borehamwood Hertfordshire WD6 5AQ
Single storey rear extension. Depth: 6m, Height: 2.96m, Eaves: 2.72m.
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Hertsmere/25/1769/CLP
Foster House Maxwell Road Borehamwood Hertfordshire
Replacement of the existing balcony timber decking with aluminium decking. Certificate of Lawful Development (Proposed).
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Hertsmere/25/1800/HSE
28 Aldenham Avenue Radlett Hertfordshire WD7 8HX
Demolition of front porch and erection of replacement porch. Part single part two storey rear extension. Conversion of loft to habitable space including 3x rear dormer windows and 3x front...
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Hertsmere/26/0036/HSE
77 Aberdale Gardens Potters Bar Hertfordshire EN6 2JF
Conversion of loft to habitable space including hip to gable roof alterations with rear dormer and front roof light.
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Hertsmere/26/0180/HSE
15 Radlett Park Road Radlett Hertfordshire WD7 7BG
Part single part two storey side extension, single storey rear extension, conversion of loft to habitable space with alterations to fenestration and new external finishes.
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Hertsmere/25/1706/CLP
218 Barnet Road Potters Bar Hertfordshire EN6 2SH
Conversion of loft to habitable space with associated hip to gable roof alterations including rear dormer and Juliette balcony, and insertion of 3x front rooflights. Certificate of Lawful D...
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Hertsmere/25/1762/FUL
31 Tempest Avenue Potters Bar Hertfordshire EN6 5JU
Change of use from class C3 to sui generis 12 bedroom HMO use facilitated by a demolition of existing outbuilding and construction of a part single, part two storey side and rear extension...
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Hertsmere/25/1794/DOC
Tamworth Court Belle Vue Lane Bushey Hertfordshire
Application for approval of details reserved by conditions 4 (construction method statement), 5 (drainage) and 10 (climate change & sustainability statement) of planning permission referenc...
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Hertsmere/25/1795/VOC
56 Aldenham Avenue Radlett Hertfordshire WD7 8HY
Variation of condition 2 (plans) to allow for roof alterations and extension of rear patio following grant of planning permission 24/1402/FUL.
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Hertsmere/25/1854/TRC
Garden Cottage Summerhouse Lane Aldenham Watford Hertfordshire WD25 8DL
T1 SYCAMORE. Fell. replace with hedgerow.
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Hertsmere/26/0078/FUL
2A Aldenham Grove Radlett Hertfordshire WD7 7BN
Demolition of dwelling at 2a and garage at 4 with plot alterations to allow for construction of replacement 6x bed dwelling basement level garage and swimming pool in rear garden. Associate...
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Hertsmere/26/0148/OUT
4 - 6 Aldenham Grove Radlett Hertfordshire
Demolition of existing dwellings, boundary alterations and erection of two replacement dwellings (as amended by plans and documents received on 04.06.2026) (Outline application with all mat...
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Hertsmere/26/0165/DOC
Home Farm Aldenham Road Elstree Borehamwood Hertfordshire WD6 3AZ
Application for approval of details reserved by conditions 4 (Drainage condition 2 of 3 (pre-commencement)) and 7 (Biodiversity Net Gain Report (pre-commencement)) of planning permission re...
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Hertsmere/25/1331/CLE
27 Park View Potters Bar Hertfordshire EN6 5PY
Erection of new outbuilding to rear garden for ancillary use. Certificate of Lawful Development (Existing).
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Hertsmere/25/1741/HSE
22 Robert Close Potters Bar Hertfordshire EN6 2DH
Single storey rear extension following demolition of existing garage; part single, part two storey side extension to include extension to existing front and rear dormers; and alterations to...
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Hertsmere/25/1759/HSE
3 Station Road Radlett Hertfordshire WD7 8JY
Conversion of loft to habitable space including rear dormer and 2x front roof lights.
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Hertsmere/25/1776/HSE
91 Strafford Gate Potters Bar Hertfordshire EN6 1PR
Retrospective application for single storey rear extension.
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Hertsmere/26/0157/HSE
8 The Drive Radlett Hertfordshire WD7 7DA
Demolition of existing garage; construction of part single, part two storey side and rear extensions and front porch; alterations to levels and hard landscaping to front and rear; alteratio...
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Hertsmere/26/0162/ADV
88 High Street Potters Bar Hertfordshire EN6 5AT
Installation of 3.no externally lit fascia signboards with advertisement stickers to glass panels and awning. (Application for Advertisment Consent.) (Associated planning application 26/016...
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Hertsmere/26/0164/FUL
88 High Street Potters Bar Hertfordshire EN6 5AT
Shopfront alteration including installation of a sliding door and installation of awning to front and side elevations. (Associated advertisment consent application 26/0162/ADV.)
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Hertsmere/25/1609/CLE
11 St Leonards Close Bushey Hertfordshire WD23 2DB
Single storey side extension, front porch, and conversion of garage to habitable space including removal of garage door and replacement window. Certificate of lawful development (Existing).
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Hertsmere/25/1677/HSE
15 Loom Lane Radlett Hertfordshire WD7 8AA
Demolition and replacement of existing detached garage. Alterations to hard and soft landscaping, to include widening of driveway and alterations to boundary treatment.
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Hertsmere/25/1720/TPO
23 Heath Road Potters Bar Hertfordshire EN6 1LW
Within G4. T1 LIME. Height approx. 10m and after a re-pollard to approx. 6m.
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Hertsmere/25/1731/HSE
Springfield King Edward Road Shenley Radlett Hertfordshire WD7 9BY
Demolition of existing conservatory and garage to facilitate construction of part single, part two storey front, side and rear extensions with associated roof works including side dormer.
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Hertsmere/25/1733/HSE
11 The Close Radlett Hertfordshire WD7 8HA
Demolition of existing conservatory to facilitate part single, part two storey rear extension. Conversion of loft to habitable space to include 3x rear dormers, increase to ridge height and...
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Hertsmere/25/1773/CLP
91 Grantham Green Borehamwood Hertfordshire WD6 2JH
Single storey rear extension and conversion of loft to habitable space including rear dormer. Certificate of lawful development (Proposed).
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Hertsmere/25/1775/DOC
25 Mountway Potters Bar Hertfordshire EN6 1ER
Application for approval of details reserved by condition 4 (materials) of planning permission reference 25/1226/HSE.
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Hertsmere/25/1779/DOC
Dayson House Warwick Road Borehamwood Hertfordshire WD6 1US
Application for approval of details reserved by condition 3 (proposed new crossover) of planning permission reference 25/0606/FUL.
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Hertsmere/25/1783/TPO
1 Windmore Hall Mutton Lane Potters Bar Hertfordshire EN6 3BH
T12 PIN OAK. Fell
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Hertsmere/25/1812/TPO
6 Newberries Avenue Radlett Hertfordshire WD7 7EW
T13 OAK. Crown reduce all round by 2-3m to leave a height of 10m tall and 5m spread all round to maintain size and prevent any further damage to the front wall.
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Hertsmere/25/1814/TPO
2 Lowther Close Elstree Borehamwood Hertfordshire WD6 3PY
T9 OAK. Reduce from height 12m to 10.5m and width 10m to 8m to retain a suitable size for the garden
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Hertsmere/25/1850/TPO
15 Williams Way Radlett Hertfordshire WD7 7EZ
T5 OAK. Overall crown reduction by approximately 2m, remove crossing branches and deadwood. Approximately 15m x14m before reduction, approximately 13m x12m after reduction.
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Hertsmere/25/0305/HSE
48 Elmroyd Avenue Potters Bar Hertfordshire EN6 2EE
Single story side extension, conversion of loft to habitable space including 1x side dormer and 1x rear dormer, alterations to fenestration and replacement of existing glass conservatory ro...
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Hertsmere/25/1233/HSE
26 Knebworth Path Borehamwood Hertfordshire WD6 2QW
Construction of single storey front and rear extension and construction of outbuilding.
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Hertsmere/25/1577/LBC
15 London Road Shenley Radlett Hertfordshire WD7 9EW
Refurbishment works to include replacement of rear roof felt and main and rear roof tiles with original clay peg tiles, replacement timber casement window and frame to existing rear dormer,...
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Hertsmere/25/1756/HSE
3 Tennison Avenue Borehamwood Hertfordshire WD6 2BG
Conversion of loft to habitable space including hip to gable roof alterations, raising of the ridge height, rear dormer, 2x front roof lights and side window.
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Hertsmere/25/1765/CLP
17 Sunnybank Road Potters Bar Hertfordshire EN6 2NW
Conversion of existing attached garage to office room, exchanging the existing garage doors with window and changing flat to hipped roof. Internal reconfiguration to kitchen/dining area wit...
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Hertsmere/25/1766/DOC
First Place Nursery Falconer Road Bushey Hertfordshire WD23 3AQ
Application for approval of details reserved by condition 13 (waste management plan) of planning permission reference 21/2391/VOC.
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Hertsmere/25/1849/CLP
35 Ashfield Avenue Bushey Hertfordshire WD23 4HG
Conversion of loft to habitable space including rear dormer, 2x front roof lights and side window. Certificate of lawful development (Proposed).
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Hertsmere/25/1647/FUL
22 Pinewood Close Borehamwood Hertfordshire WD6 5NW
Change of use from residential institution (Use Class C2) to single detached dwellinghouse (Use Class C3) with construction of part single, part two storey rear extension and replacement of...
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Hertsmere/25/1685/HSE
40 Farm Way Bushey Hertfordshire WD23 3SY
Single storey rear extension, conversion of garage to habitable space including raising/renewal of garage roof and removal of door with replacement window and alterations to fenestration.
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Hertsmere/25/1743/CLP
11 Battlers Green Drive Radlett Hertfordshire WD7 8NE
Conversion of loft to habitable space to include rear dormer and insertion of 3x front rooflights. Certificate of Lawful Development (Proposed).
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Hertsmere/25/1755/LBC
South Medburn Farm Watling Street Radlett Hertfordshire
The works seek to carry out trial pits in Barns 1 and 4. The trial pits will allow us to study the make-up and structure of the floor and perimeter walls to better understand how to underta...
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Hertsmere/26/0016/MA
50 Scottswood Road Bushey Hertfordshire WD23 2DN
Application for a non-material amendment to allow for alterations to first floor front window following the grant of planning permission ref 25/0469/HSE.
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Hertsmere/26/0061/FUL
15 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3NY
Demolition of existing detached bungalow to facilitate construction of 3x two storey dwellings (2x semi-detached and 1x detached) to include hard and soft landscaping, front boundary works...
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Hertsmere/25/1070/FUL
Land Opposite Junction With Butterfly Lane And East Of Watling Street Radlett Hertfordshire
The construction and operation of a Battery Energy Storage System (BESS) and associated infrastructure including battery container units, medium voltage stations, 132 kV substation, 33kV cu...
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Hertsmere/25/1523/FUL
Dayson House Warwick Road Borehamwood Hertfordshire WD6 1US
Raising of the roof over the existing warehouse, construction of a mezzanine floor, and installation of external cladding to the elevations of the existing building.
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Hertsmere/25/1629/TPO
69 Hartfield Avenue Elstree Borehamwood Hertfordshire WD6 3JJ
T1 CRAB APPLE. Crown reduction to leave a final height of 5.5m and a final width of 5m on tree. Crown lift to 2m to give more visibility for reversing vehicles.
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Hertsmere/25/1751/HSE
26 The Grove Radlett Hertfordshire WD7 7NF
Part single part two storey side and rear extensions, first floor rear extension and erection of pool and outbuilding in rear garden.
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Hertsmere/25/1022/DOC
Land North Of Watford Road And West Of High Street Elstree Hertfordshire
Application for approval of details reserved by conditions 8 (offsite works) of planning permission reference 23/1123/FUL.
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Hertsmere/25/1171/VOC
Land Adjacent To Bridgefoot Cottages Watling Street Radlett Hertfordshire AL2 2EJ
Variation of conditions 1 (approved plans and elevations) and 10 (scheme of landscaping and boundary treatments) to allow for an increase to the extent of existing hardstanding within the s...