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Planning application

Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

Awaiting decision Three Rivers 26/1587/FUL Full applications

Works: Extension Demolition Windows or glazing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Demolition of existing extensions and pool house, construction of part single, part two storey side and rear extensions; construction of detached pool house and garage building; associated landscape works; alterations to the fenestration; internal alterations

As published by the council, reference 26/1587/FUL

Application record

Reference
26/1587/FUL
Category
Full applications
Status
Pending Consideration
Received
6 Oct 2026
Validated
27 Oct 2026
Postcode
WD3 5BT

Site history

Applications at this address on the Three Rivers register

This site has had 4 applications since 2023: 2 approved, 0 refused.

  • 26/0931/TCA Awaiting decision

    Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    T23-25 - 3 x Pine - remove

    Submitted 8 Jun 2026 Trees
  • 25/1701/TPO Granted

    Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    T2 Beech, decay in mainstem, poor form - remove T3 Beech, large cavity in base, declining - remove T4 Spruce, in canopy of larger adjacent Oak, little future potential - remove T5 Scots Pine, canopy thinning, close to road and overhead lines - remove T8 Silver Birch, poor form - remove T 9 Silver Birch, reduce overextended lateral limb by 2-3 metres, to reduce shading on young Ginko planted adjacent T12 Oak, canopy retrenching with large diameter deadwood, reduce canopy to points on picture, to maintain tree as a monolith with retrenched canopy T14 Ash, advanced ADB, remove T23, 24 and 25 - Small Pines, planted by pond - Reduce by 1 metre vertically and 0.5 laterally, including thinning, to maintain trees as a small size, whilst keeping aesthetics T26 Spruce - Poor location for tree near pond - remove T27 Prunus - Remove

    Decided 2 Jan 2026 Trees
  • 23/2147/TCA Granted

    Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    T1 - Holly - Remove to ground level Tree is suffocated by ivy. Ivy severing was stopped as there was potential structural support from the ivy. Tree is on roadside and in contact with fibre optics. Low amenity and potential to fall on road. T2 - Oak - Remove to ground level Tree is stag heading due to poor location (area which regularly floods) which is impacting the roots. Tree is in falling distance to neighbours outhouse. Branches dropping/failing in the past.

    Decided 12 Feb 2024 Trees

Timeline

Dates from the published record

  1. 6 Oct 2026

    Received by Three Rivers

  2. 27 Oct 2026

    Validated

    Checked as complete and ready for consideration.

  3. 28 Oct 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 22 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Three Rivers took a median of 56 days over the applications it decided in the last year.

What happens while it is decided

This application is with Three Rivers for determination, against a statutory target of eight weeks. Over the last year Three Rivers decided full applications in a median of 63 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    26/0931/TCA Submitted 8 Jun 2026 50 yards away

    84% historically approved · decision due ~3 Aug

    T23-25 - 3 x Pine - remove

    Awaiting decision Trees
  • Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    25/1701/TPO Submitted 2 Oct 2025 50 yards away

    T2 Beech, decay in mainstem, poor form - remove T3 Beech, large cavity in base, declining - remove T4 Spruce, in canopy of larger adjacent Oak, little future potential - remove T5 Scots Pine, canopy thinning, close to road and overhead lines - remove T8 Silver Birch, poor form - remove T 9 Silver Birch, reduce overextended lateral limb by 2-3 metres, to reduce shading on young Ginko planted adjacent T12 Oak, canopy retrenching with large diameter deadwood, reduce canopy to points on picture, to maintain tree as a monolith with retrenched canopy T14 Ash, advanced ADB, remove T23, 24 and 25 - Small Pines, planted by pond - Reduce by 1 metre vertically and 0.5 laterally, including thinning, to maintain trees as a small size, whilst keeping aesthetics T26 Spruce - Poor location for tree near pond - remove T27 Prunus - Remove

    Granted Trees 16 docs
  • Fern Hill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    24/0189/TCA Submitted 7 Feb 2024 50 yards away

    Front Garden (all tree numbers provided are for purpose of site map only) T1 Conifer - Fell to ground level In Decline Rear Garden T2 Row of Oaks - Lift over neighbours lawn by 3m approx so the grass can be cut and a bait a nuisance T3 Small Leaning Oak (45 degree angle over neighbours lawn) - Fell to ground level Grown under the shadow of the Row of Oaks, leaning in to fence line To a bait a nuisance to the neighbour T4 Sycamore - Reduce overly long limb by 5m approx. and remove deadwood To bring in line with the remainder of the trees

    Granted Trees 7 docs
    Small domestic
  • Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    23/2147/TCA Submitted 18 Dec 2023 50 yards away

    T1 - Holly - Remove to ground level Tree is suffocated by ivy. Ivy severing was stopped as there was potential structural support from the ivy. Tree is on roadside and in contact with fibre optics. Low amenity and potential to fall on road. T2 - Oak - Remove to ground level Tree is stag heading due to poor location (area which regularly floods) which is impacting the roots. Tree is in falling distance to neighbours outhouse. Branches dropping/failing in the past.

    Granted Trees 6 docs
  • Long Lane House Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

    24/1551/TCA Submitted 25 Sep 2024 50 yards away

    Field Maple - Fell

    Granted Trees 6 docs
  • Athelstan Long Lane Heronsgate WD3 5BT

    21/1163/FUL Submitted 5 May 2021 50 yards away

    Construction of detached outbuilding in rear garden

    Granted Full applications 16 docs

In Three Rivers

  • 26/1700/FUL Awaiting decision

    Jonathans Shire Lane Chorleywood Rickmansworth Hertfordshire WD3 5NH

    Construction of a single storey rear extension and alterations to the patio

    Received 27 Oct, published by the council 29 Oct 2026 Full applications
  • 26/1688/FUL Awaiting decision

    37 Russell Road Moor Park Northwood Hertfordshire HA6 2LP

    Variation of Condition 2 (Approved Plans) pursuant to planning permission 26/1117/FUL to allow an increase in height to the single storey rear extension and an increase in size of the first floor rear projection

    Received 26 Oct, published by the council 27 Oct 2026 Full applications
  • 26/1692/FUL Awaiting decision

    4 Canterbury Way Croxley Green Rickmansworth Hertfordshire WD3 3SS

    Construction of an outbuilding

    Received 26 Oct, published by the council 27 Oct 2026 Full applications
  • 26/1689/FUL Awaiting decision

    15 Dover Way Croxley Green Rickmansworth Hertfordshire WD3 3SL

    Demolition of existing single storey side extension and construction of single storey front and side extension

    Received 26 Oct, published by the council 27 Oct 2026 Full applications
  • 26/1674/FUL Awaiting decision

    The Lower House Burfield Road Chorleywood Rickmansworth Hertfordshire WD3 5NS

    Demolition of existing conservatory, and single storey front, side and rear extensions; construction of part-single, part-two storey rear extension, single storey front and side extension, loft conversion and extension including increase in ridge height with rear dormer and rooflight, landscaping works including rear and side terrace areas; internal alterations and alterations to fenestration, external materials including brick and render; erection of carport

    Received 22 Oct, published by the council 28 Oct 2026 Full applications