6 Cassiobury Park Avenue Watford WD18 7LB

1. 8 Dec 2023

   Received by Watford

2. 11 Dec 2023

   Validated

   Checked as complete and ready for consideration.

3. 5 Feb 2024

   Decision issued: Conditional Planning Permission

4. 26 Jul 2026

   Added to PlanIndex

Watford granted permission on 5 February 2024, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• York House 26 - 30 Rickmansworth Road Watford WD18 7HT

  26/00486/LDC Submitted 26 Jun 2026 50 yards away

  Lawful development certificate for proposed erection of single storey rear extension and porch

  Refused Lawful development Extension 20 docs
  Small domestic

• York House 26 - 30 Rickmansworth Road Watford WD18 7HT

  26/00464/LDC Submitted 18 Jun 2026 50 yards away

  Lawful development certificate for proposed loft conversion including rear dormer and single storey extension

  Refused Lawful development Extension Loft or dormer 14 docs
  Small domestic

• York House 26 - 30 Rickmansworth Road Watford WD18 7HT

  26/00080/FUL Submitted 4 Feb 2026 50 yards away

  Roof extensions and internal alterations to allow for additional HMO bedrooms with cycle storage REVISED PLANS

  Granted Full applications Extension 28 docs

• 2 Cassiobury Park Avenue Watford WD18 7LB

  22/00171/TPO Submitted 9 Feb 2022 50 yards away

  Works to trees under TPO.98 part of G2 - Tree number - G1 3 x Lime (Tillia x europea) reduce and shape height by around 2.5m.

  Granted Trees 5 docs

• 32B Rickmansworth Road Watford WD18 7HT

  22/00115/FUL Submitted 28 Jan 2022 50 yards away

  Proposed Loft Conversion

  Granted Full applications Loft or dormer 9 docs

• 32C Rickmansworth Road Watford WD18 7HT

  23/01164/FULH Submitted 14 Dec 2023 50 yards away

  Erection of a first floor rear extension and roof extension, loft conversion including 2 no. dormers (resubmission of approved 20/01383/FULH)

  Granted Householder Extension Loft or dormer 8 docs
  Domestic

• 26/00712/FULH Awaiting decision

  32 Gade Avenue Watford Hertfordshire WD18 7LG

  Erection of a single storey rear extension and internal alterations.

  Received 8 Sep, published by the council 14 Sep 2026 Householder
• 26/00491/FULH Granted

  88 High Road Watford WD25 7LJ

  Retrospective planning application for timber framed cantilevered garden barbecue canopy with roof tiles to match existing

  Received 29 Jun, published by the council 24 Jul 2026 Householder
• 26/00559/FULH Granted

  157 Cassiobury Drive Watford WD17 3AL

  Proposed roof alteration involving double hip-to-gable conversion; erection of a rear crown-roof dormer; erection of a front dormer; installation of 4 x roof lights on the front and front/side roof slope; installation of new windows to the front, rear and side; installation of a side door to the ground floor; changes to finish materials; internal alterations.

  Received 21 Jul, published by the council 26 Jul 2026 Householder
• 26/00550/FULH Granted

  39 The Ridgeway Watford WD17 4TH

  Proposed roof alteration and conversion of loft into habitable room with roof lights.

  Received 17 Jul, published by the council 26 Jul 2026 Householder
• 26/00601/FULH Granted

  28 Oakdene Road Watford WD24 6RW

  Erection of first floor rear extension

  Received 3 Aug, published by the council 9 Aug 2026 Householder