189 Cassiobury Drive Watford WD17 3AL

1. 1 May 2025

   Received by Watford

2. 13 May 2025

   Validated

   Checked as complete and ready for consideration.

3. 8 Jul 2025

   Decision issued: Conditional Planning Permission

4. 26 Jul 2026

   Added to PlanIndex

Watford granted permission on 8 July 2025, 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.

• 193 Cassiobury Drive Watford WD17 3AL

  20/01101/DISCON Submitted 14 Oct 2020 50 yards away

  Details submitted for Condition 4 (tree protection method statement) pursuant to planning permission 20/00808/FULH

  Granted Conditions Trees 4 docs

• 193 Cassiobury Drive Watford WD17 3AL

  25/00342/FULH Submitted 4 Apr 2025 50 yards away

  Erection of outbuilding to rear of garden

  Granted Householder 18 docs
  Small domestic

• 193 Cassiobury Drive Watford WD17 3AL

  20/00808/FULH Submitted 3 Aug 2020 50 yards away

  Erection of porch extension

  Granted Householder Extension 14 docs
  Small domestic

• 300 Cassiobury Drive Watford WD17 3AP

  24/00493/FULH Submitted 23 May 2024 50 yards away

  (Part Retrospective) Change of use of garage into a habitable space. A new flat roof replaces an old corrugated sheet roof. The new roof height does not exceed 2500mm. The garage door is being replaced with a brick infill and a window. To the rear, replacing the old door and window with a new one. To the side changing the roof type from a corrugated sheet roof to a flat roof.

  Granted Householder Extension Roofing +1 12 docs
  Domestic

• 298 Cassiobury Drive Watford WD17 3AP

  24/00185/FULH Submitted 4 Mar 2024 50 yards away

  Erection of Single storey rear extension, side dormer, front porch insertions of roof lights, installation of solar panels & with internal changes.

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• 179 Cassiobury Drive Watford WD17 3AL

  20/00512/FULH Submitted 26 May 2020 50 yards away

  Erection of part single, part double storey side and rear extensions, alterations to front porch, garage conversion and external rendering.

  Granted Householder Extension 10 docs
  Small 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