26/0283/RSP

1. 20 Feb 2026

   Received by Three Rivers

2. 16 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 8 Jul 2026

   Decision issued: approved

4. 24 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

• 26/0339/RSP Granted

  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, guttering; boundary treatments including front brick wall with piers with smooth render and coping stones; alterations to front elevation including removal of tudor details and external materials including render.

  2 Mar 2026 54m away Amendments
• 21/2393/TPO Granted

  Pentlands 55 Chestnut Avenue Rickmansworth WD3 4HA

  T1 T2 T3 & T4 - Beech reduce by 3.5m crown clean by 20% Client is worried about the tree in striking distance of the house in high winds etc. light into garden is an issue too.

  13 Oct 2021 96m away Trees
• 25/0904/FUL Granted

  23 Chestnut Avenue Rickmansworth Hertfordshire WD3 4HA

  Demolition of existing conservatory and construction of single storey rear extension and front porch extension

  27 May 2025 138m away Full applications
• 25/1272/TPO Decided

  36 The Clump Rickmansworth Hertfordshire WD3 4BQ

  Tree Number - T1 Tree Type - Oak (Quercus robur) Approx. Diameter at 1.5m - 0.5m Approx. Height - 14m Approx. Crown Spread Diameter - 12m Location - Front garden, see map Service - Section dismantle Work Required - Section dismantle tree to near ground level Reason - Tree has signs of upper crown dieback. Fruiting fungal brackets present at ground level. Reduction to reduce stresses on stem wood and reduce likelihood of failure. Removal to eliminate risk of failure. Priority Code - B

  28 Jul 2025 140m away Trees
• 22/1042/TPO Granted

  38 The Clump Rickmansworth Hertfordshire WD3 4BQ

  See consultant report.

  30 May 2022 140m away Trees
• 20/2208/DDD Granted

  40 The Clump Rickmansworth Hertfordshire WD3 4BQ

  T1 - Ash - Fell T2 - Horse Chestnut - Fell T3 - Horse Chestnut - Fell T4 - Horse Chestnut - Fell T5 - Sycamore - Fell

  12 Oct 2020 142m away Trees

• 26/1089/NMA Granted

  Warner Bros. Studios Leavesden Warner Drive Watford Hertfordshire WD25 7LP

  Non-material amendment pursuant to planning permission 25/1308/FUL to allow alterations to Building 18 including alterations to fenestration detail, new canopy element and provision of a mezzanine level.

  7 Jul 2026 Amendments
• 26/1062/NMA Granted

  24 Lynwood Heights Rickmansworth Hertfordshire WD3 4ED

  Non Material Amendments to planning permission 24/1799/RSP to allow alterations to the fenestration and render including change in exterior colour.

  1 Jul 2026 Amendments
• 26/0845/RSP Granted

  Keepers Cottage Solesbridge Lane Chorleywood Rickmansworth Hertfordshire WD3 5SU

  Part-Retrospective: Change of use of land for the stationing of caravans for residential purposes.

  26 May 2026 Amendments
• 25/0488/RSP Granted

  Scotsbridge House Scots Hill Croxley Green Rickmansworth Hertfordshire WD3 3BB

  Part Retrospective: Demolition of offices and erection of new development of 59 flats with associated parking and external landscaping

  19 Mar 2025 Amendments
• 26/1189/RSP Awaiting decision

  30 Hillcroft Crescent Oxhey Hall Watford Hertfordshire WD19 4NY

  Retrospective Application: single storey rear extension

  23 Jul 2026 Amendments