211 Cassiobury Drive Watford WD17 3AN

1. 3 Jul 2026

   Received by Watford

2. 6 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 26 Aug 2026

   Status changed to Pending Decision

   Previously Pending consideration.

5. 27 Aug 2026

   Decision issued: Conditional Planning Permission

Watford granted permission on 27 August 2026, 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.

• 217 Cassiobury Drive Watford WD17 3AN

  21/00371/FULH Submitted 12 Mar 2021 50 yards away

  Erection of a single storey rear extension, change of front side entrance door and sidelights to window.

  Withdrawn Householder Extension Windows or glazing 17 docs
  Small domestic

• 322 Cassiobury Drive Watford WD17 3AW

  23/00502/FULH Submitted 7 Jun 2023 50 yards away

  Proposed outbuilding to rear garden

  Granted Householder 4 docs
  Small domestic

• 320 Cassiobury Drive Watford WD17 3AW

  18/01223/VAR Submitted 24 Sep 2018 50 yards away

  Variation of condition 2. (approved drawings) pursuant to planning permission 16/01591/FULH to change the roof from pitched to a flat.

  Granted Amendments 15 docs

• 316 Cassiobury Drive Watford WD17 3AW

  25/00169/FULH Submitted 27 Feb 2025 50 yards away

  Erection of first floor rear extension, conversion of garage to habitable space and new roof over existing store to rear of garage

  Granted Householder Extension Roofing 9 docs
  Domestic

• 324 Cassiobury Drive Watford WD17 3AW

  20/00122/FULH Submitted 3 Feb 2020 50 yards away

  Erection of double storey side extension, single storey rear extension, loft conversion and new porch

  Refused Householder Extension Loft or dormer 11 docs
  Small domestic

• 324 Cassiobury Drive Watford WD17 3AW

  20/01030/FULH Submitted 30 Sep 2020 50 yards away

  Erection of a single storey rear extension, new porch, loft conversion including raising the roof ridge, removal of chimneys and new pitched roof for dormers and new external finishes

  Granted Householder Extension Loft or dormer 7 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