Planning authority · 2026
Three Rivers planning applications 2026
1,178 public planning records from 2026 in the production OGL dataset, newest first, linked to council source pages.
Applications
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Three Rivers/26/1048/TCA
6 Astons Road Moor Park Northwood Hertfordshire HA6 2LD
T1 - Common Yew tree, to remove many dead branches, some of which are dangerous, and to increase clearance between ground and crown byCrown Lifting to 2.5m and better shape the crown by Cro...
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Three Rivers/26/1049/FUL
42 Margeholes Carpenders Park Watford Hertfordshire WD19 5AR
Single storey front extension.
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Three Rivers/26/0673/FUL
National Westminster Bank 159 - 161 High Street Rickmansworth Hertfordshire WD3 1BA
Extension and conversion of existing building to provide 2 commercial units (Use Class E) and erection of 7no. self-contained residential dwellings (Use Class C3) including a two storey rea...
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Three Rivers/26/0681/FUL
Oaklands Harthall Lane Kings Langley Hertfordshire WD4 8JN
Construction of single storey rear extension; front porch; rear patio extension, loft conversion including rear dormer window and front and side rooflights; alterations to flank window; and...
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Three Rivers/26/0909/FUL
62 Station Road Kings Langley Hertfordshire WD4 8LB
Construction of single storey side extension and erection of replacement detached garage to rear.
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Three Rivers/26/0948/FUL
The Willows Shire Lane Chorleywood Rickmansworth Hertfordshire WD3 5NT
Substantial demolition of existing dwelling; re-construction of dwelling to include part single-storey, part two-storey front, side and rear extensions; construction of new hipped roof, inc...
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Three Rivers/26/1035/CLPD
90 Sherborne Way Croxley Green Rickmansworth Hertfordshire WD3 3PG
Certificate of Lawfulness Proposed Development: Single storey rear extension; loft conversion including hip to gable extension, rear dormer and front rooflights.
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Three Rivers/26/1037/FUL
Edgehill Sandy Lane Northwood HA6 3ES
Conversion of garage into habitable accommodation including alterations to fenestration and rooflights.
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Three Rivers/26/0039/FUL
The Dell Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5DJ
Erection of two self-build detached dwellings, alterations to existing vehicular access and land levels and proposed associated landscaping.
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Three Rivers/26/0374/FUL
40 Wolsey Road Moor Park Northwood Hertfordshire HA6 2EN
Construction of part single-storey, part two-storey rear extension with basement level; single-storey front extensions; loft conversion including rear dormer window; storm porch; alteration...
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Three Rivers/26/0574/FUL
31 Parkfield Chorleywood Rickmansworth Hertfordshire WD3 5AZ
Demolition of existing store, conservatory, indoor swimming pool and pond; construction of part-single storey, part-two storey front and rear extension, single storey side extension, front...
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Three Rivers/26/0592/FUL
35 Langley Lane Abbots Langley Hertfordshire WD5 0LX
Erection of a dropped kerb and installation of a drive
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Three Rivers/26/0622/RSP
Corner Hall Old Uxbridge Road West Hyde Rickmansworth Hertfordshire WD3 9YA
Part-retrospective: Demolition of existing outbuilding and erection of carport with garage and workshop
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Three Rivers/26/0623/LBC
Corner Hall Old Uxbridge Road West Hyde Rickmansworth Hertfordshire WD3 9YA
Listed Building Consent: Demolition of existing outbuilding and erection of carport with garage and workshop
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Three Rivers/26/0631/CLPD
Clovelly Bell Lane Bedmond Abbots Langley Hertfordshire WD5 0QS
Certificate of Lawfulness Proposed Development: Loft conversion including hip to dutch hip roof extension, rear juliet dormer with windows
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Three Rivers/26/0657/CWC
29 Mary Way South Oxhey Watford Hertfordshire WD19 6HN
Compliance with Conditions pursuant to planning permission 23/1086/FUL
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Three Rivers/26/0740/FUL
44 Berry Lane Mill End Rickmansworth Hertfordshire WD3 4DD
Installation of air source heat pump
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Three Rivers/26/0804/PDE
80 Hayling Road South Oxhey Watford Hertfordshire WD19 7BP
Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 2.50 metres, maximum eaves height 2.50 metres)
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Three Rivers/26/0875/NAC
Plots A2-A5, Zone A, Harrow View East Masterplan Site (Former Kodak Factory Site), Headstone Drive, Harrow HA1 4TY
Neighbouring Authority Consultation: London Borough Of Harrow - Full planning application for development of residential homes (Use Class C3), commercial uses (Use Class E), and health cent...
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Three Rivers/26/0990/CWC
Farriers Way Garston Watford Hertfordshire WD25 9BS
Comfirmation of compliance with conditions pursuant to planning permissions 17/2549/AOD and 18/1313/FUL.
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Three Rivers/26/0995/DDD
Land At Woodside Road Woodside Road Abbots Langley Hertfordshire
5 - day notice Copper Beech removal
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Three Rivers/26/1025/DIS
The Fisheries Solesbridge Lane Chorleywood Rickmansworth Hertfordshire WD3 5SS
Discharge of Condition 3 (External Materials) Pursuant to planning permission 25/0739/FUL
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Three Rivers/26/0619/FUL
63 Clarkfield Mill End Rickmansworth Hertfordshire WD3 8FL
Alterations to roof including increase in eaves height to front, installation of rooflights and alterations to fenestration detail including installation of first floor front windows.
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Three Rivers/26/0648/RSP
30 Highfield Carpenders Park Watford Hertfordshire WD19 5DZ
Retrospective: Construction of single storey side/rear extension to use as shed
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Three Rivers/26/0677/FUL
Bay Tree Farm Bucks Hill Kings Langley Hertfordshire WD4 9AU
Construction of an outdoor riding manege
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Three Rivers/26/0696/FUL
Old Plough House Plough Lane Sarratt Rickmansworth Hertfordshire WD3 4NN
Demolition of existing conservatory and construction of two storey rear extension; external materials including timber cladding
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Three Rivers/26/0697/LBC
Old Plough House Plough Lane Sarratt Rickmansworth Hertfordshire WD3 4NN
Listed Building Consent: Demolition of existing conservatory and construction of two storey rear extension; external materials including timber cladding
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Three Rivers/26/0703/FUL
12 Fulford Grove South Oxhey Watford Hertfordshire WD19 7QG
Erection of under ground concrete garden bunker in the rear garden
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Three Rivers/26/0712/FUL
5 Field Way Rickmansworth Hertfordshire WD3 7EL
Construction of single storey front and side extensions, alterations to fenestration, external materials including white render
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Three Rivers/26/0715/RSP
6 Berry Way Rickmansworth Hertfordshire WD3 7EY
Part-Retrospective: Substantial demolition of existing dwelling and demolition of garage and storage; construction of part-single, part-two storey side and rear extension, single storey fro...
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Three Rivers/26/0748/PDE
3 Lewes Way Croxley Green Rickmansworth Hertfordshire WD3 3SN
Prior Approval: Single storey rear extension (depth 7.00 metres, maximum height 3.00 metres, maximum eaves height 3.00 metres)
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Three Rivers/26/0846/PDE
8 Hillsborough Green South Oxhey Watford Hertfordshire WD19 7PZ
Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 3.30 metres, maximum eaves height 2.75 metres)
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Three Rivers/26/0857/TCA
11 Pembroke Road Moor Park Northwood Hertfordshire HA6 2HP
9 Conifers and 1 Beech tree, prune 600-800mm to bring all in line. Height will remain the same.
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Three Rivers/26/0922/HCR3
FormerSir James Altham Pool Altham Way South Oxhey Hertfordshire
Hertfordshire County Council Regulation 3 Application: Demolition of vacant swimming pool building at former Sir James Altham School, installation of cladding to existing wall connecting th...
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Three Rivers/26/0963/FUL
Warner Bros. Studios Leavesden Warner Drive Watford Hertfordshire WD25 7LP
Extensions to temporary school building in association with on-site filming activities.
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Three Rivers/26/1005/RSP
Conifers 11 Grovewood Close Chorleywood Rickmansworth Hertfordshire WD3 5PU
Retrospective: Replacement of pre-existing glazed pitched conservatory roof with flat roof.
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Three Rivers/26/1028/PDE
52 Barton Way Croxley Green Rickmansworth Hertfordshire WD3 3QA
Prior Approval: Single storey rear extension (depth 6.00m, maximum height: 2.95m, maximum eaves height: 2.95m)
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Three Rivers/26/1038/TCA
The Land At Clockhouse Mews Chorleywood Hertfordshire WD3 5GN
Line of 11 Conifers - Reduce in height from approx 7.2m to 3.6m
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Three Rivers/26/0611/CLPD
15 Church Lane Sarratt Rickmansworth Hertfordshire WD3 6HN
Certificate of Lawfulness Proposed Development: Refurbishment and repairs to existing garage
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Three Rivers/26/0625/RSP
171 Hampermill Lane Oxhey Hall Watford Hertfordshire WD19 4PJ
Part-retrospective: Installation of side window and rear door, installation of 3m high timber fence to rear of dwelling along part of boundary with no.169 Hampermill Lane
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Three Rivers/26/0687/DIS
34 Wolsey Road Moor Park Northwood Hertfordshire HA6 2EN
Discharge of Condition 5 (Replanting Scheme) pursuant to planning permission 26/0246/FUL
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Three Rivers/26/0694/PDT
The Bungalow Batchworth Heath Farm Batchworth Heath Rickmansworth Hertfordshire WD3 1QB
Prior approval: Enlargement of the dwellinghouse by the construction of one additional storey (2.75m height) and raising of ridge to result in an overall height of 6.58m (Class AA)
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Three Rivers/26/0699/CLPD
The Bungalow Batchworth Heath Farm Batchworth Heath Rickmansworth Hertfordshire WD3 1QB
Certificate of Lawfulness Proposed Development: Demolition of existing single storey side extension and, construction of single-storey side extensions
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Three Rivers/26/0700/CLPD
The Bungalow Batchworth Heath Farm Batchworth Heath Rickmansworth Hertfordshire WD3 1QB
Certificate of Lawfulness Proposed Development: Construction of an outbuilding with indoor swimming pool
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Three Rivers/26/0701/CLLB
Wakering House 6 The Bury Bury Lane Rickmansworth Hertfordshire WD3 1DX
Certificate of Lawfulness of Proposed Works to a Listed Building: Replacement of kitchen and bathroom together with associated works and various internal works.
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Three Rivers/26/0729/FUL
174 Prestwick Road South Oxhey Watford Hertfordshire WD19 6LE
Demolition of existing garage and single storey side extension; construction of single storey front, side and rear extension
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Three Rivers/26/0887/FUL
114 Whitelands Avenue Chorleywood Rickmansworth Hertfordshire WD3 5RG
Erection of side dormer to first floor level with side solar panels and rooflights; alterations to ground floor level rear roof form from hip to gable extension, alterations to side and rea...
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Three Rivers/26/0894/FUL
Trinity Court Church Street Rickmansworth Hertfordshire WD3 1RT
Construction of two additional storeys to existing two storey car park building to form four storey building (ground floor retained for parking and commercial use (Class E) at floors 1, 2,...
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Three Rivers/26/0979/TCA
101 Oaklands Avenue Oxhey Hall Watford Hertfordshire WD19 4TN
Tree Number - T2 Tree Type - Paper birch (Betula papyrifera) Approx Height - 10mLocation - See mapService - Cut BackWork required - Cut back to create 2m clearance from neighbour's garden o...
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Three Rivers/26/0985/FUL
7 Penn Way Chorleywood Rickmansworth Hertfordshire WD3 5HQ
Proposed change of use of lower ground floor from Use Class C3 (residential) to Use Class C1 (holiday lettings)
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Three Rivers/26/1004/CLPD
39 Bishops Avenue Northwood HA6 3DD
Certificate of Lawfulness Proposed Development: Conversion of garage to habitable accommodation
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Three Rivers/26/1012/CLPD
68 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3BP
Certificate of Lawfulness Proposed Development: Loft extension with dormer to rear and hip to gable roof alterations.
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Three Rivers/26/1026/TPO
13 Astons Road Moor Park Northwood Hertfordshire HA6 2LE
Tree Number - T1Tree Type - Horse chestnut (Aesculus hippocastanum)Approx. Diameter at 1.5m - 0.6m Approx. Height - 15mApprox. Crown Spread Diameter - 9m Service - Crown ReductionWork Requi...
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Three Rivers/25/0599/FUL
Beech Hill Trout Rise Loudwater Rickmansworth Hertfordshire WD3 4JS
Demolition of existing dwelling and construction of a replacement two storey detached dwelling; detached garage; enlargement of driveway and associated landscaping
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Three Rivers/25/1691/FUL
The Glade Bridge Over The River Colne Adjacent Grand Union Canal Off Church Street Rickmansworth Hertfordshire
Replacement of The Glade Bridge.
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Three Rivers/26/0339/RSP
31 Chestnut Avenue Rickmansworth Hertfordshire WD3 4HA
Part-Retrospective: Construction of single storey front infill and front porch extensions, alterations to fenestration including replacement of windows and roof tiles, fascia boards, gutter...
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Three Rivers/26/0390/TCA
Wainhill Common Road Chorleywood Rickmansworth Hertfordshire WD3 5LN
Undertake a crown reduction of approximately 4 metres from the upper canopy of each tree (T1-T3) to reduce overall height and reduce lateral spread by approx 1.5-2m while retaining the natu...
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Three Rivers/26/0588/FUL
11 Pembroke Road Moor Park Northwood Hertfordshire HA6 2HP
Erection of hard and soft landscaping including alterations to driveway and raised rear patio and fixed seating area with boundary fence, planters and other ancillary garden features
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Three Rivers/26/0627/RSP
263 Muirfield Road South Oxhey Watford Hertfordshire WD19 6HZ
Retrospective Application: Construction of two storey side extension for use as a separate dwelling including subdivision of rear garden
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Three Rivers/26/0654/FUL
4 Gosforth Path South Oxhey Watford Hertfordshire WD19 7NX
Construction of single-storey side and rear extension and front porch