30 Cassiobury Drive Watford WD17 3AB

1. 27 Feb 2026

   Received by Watford

2. 20 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 1 Jul 2026

   Decision issued: Conditional Planning Permission

4. 24 Jul 2026

   Added to PlanIndex

Watford granted permission on 1 July 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 34 Cassiobury Drive Watford WD17 3AB

  23/01105/FULH Submitted 30 Nov 2023 50 yards away

  Part single storey, part two storey rear extension, single storey side extension, loft conversion with rear dormer and front rooflights.

  Granted Householder Extension Loft or dormer 38 docs
  Small domestic

• 22 Cassiobury Drive Watford Hertfordshire WD17 3AB

  22/01345/VAR Submitted 18 Nov 2022 50 yards away

  Variation of Condition 2 (approved plans) of planning permission 21/01806/FULH for the use of smooth white render to the external walls and the addition of two roof lanterns to the rear extension roof and change from mono-pitched roof to the single storey side extension to a flat roof

  Granted Amendments Extension 5 docs
  Small domestic

• 22 Cassiobury Drive Watford WD17 3AB

  21/01806/FULH Submitted 13 Dec 2021 50 yards away

  Erection of part single storey, part two storey rear extension, first floor side extension, conversion of garage to habitable space, front entrance porch, new roof to provide habitable space, the ridge height of the new roof to match the existing. As previously approved under application ref: 21/01465/FULH and ground floor rear extension under: 21/01454/HPD.

  Granted Householder Extension Roofing 7 docs
  Small domestic

• 22 Cassiobury Drive Watford WD17 3AB

  24/00146/FULH Submitted 21 Feb 2024 50 yards away

  Erection of new garden outbuilding

  Granted Householder 8 docs
  Small domestic

• 12 Cassiobury Drive Watford WD17 3AB

  20/00622/NONMAT Submitted 19 Jun 2020 50 yards away

  Non-material amendment to planning permission 18/01584/FUL to replace 1st floor rear bedroom window with a Juliet balcony.

  Granted Amendments Windows or glazing 5 docs

• 45 Cassiobury Drive Watford WD17 3AA

  25/00223/NONMAT Submitted 10 Mar 2025 50 yards away

  Non material amendment to internal layout and measurements of the building pursuant to planning permission 24/00547/FULH

  Granted Amendments 7 docs

• 26/00709/NONMAT Awaiting decision

  223 Hempstead Road Watford WD17 3HH

  Non - material amendment pursuant to planning permission 25/00993/FULH for proposed relocation of the front porch, addition of Tudor detailing to the front elevation and replacement of a window to the rear elevation with a 4-panel door

  Received 7 Sep, published by the council 14 Sep 2026 Amendments
• 26/00682/NONMAT Awaiting decision

  29 - 43 Sydney Road Watford WD18 7PZ

  Non material amendment pursuant to planning permission 25/00817/VAR to change condition 27 wording to No less than 40% of the dwellings hereby approved shall be delivered to the requirements of M4(2) of the Building Regulations (2010) Access to and use of Buildings, Approved Document M (2015 as amended), Volume 1: Dwellings, M4 (2): Accessible and adaptable dwellings. The dwellings not required to be included in this condition are as follows:Block A1, units A1-3-01, A1-3-02, A1-4-01, A1-4-04, A1-6-01 and A1-6-02;Block A2, units A2-1-02, A2-1-03, A2-1-04, A2-8-01, A2-8-08, A2-10-01, A2-10-02, A2-10- 03 and A2-10-04;Block B, Units B-1-01, Unit B-1-02, Unit B-1-03, Unit B-1-04, Unit B-1-05, Unit B-1-06, Unit B-1-07 and Unit B-1-08; and Block C, Units C-1-01, C-1-02, C-1-03, C-1-04, C-1-05, C-1-06, C-1-07, C-1-09, C-5-04 and C5-05.

  Received 26 Aug, published by the council 8 Sep 2026 Amendments
• 26/00670/NONMAT Awaiting decision

  94 - 98 St Albans Road And 114 St Albans Road Watford

  Non - material amendment pursuant to planning permission 19/00507/FULM for removal of artificial grass, replacement with granite sett paving to match existing and installation of seats and tables ground level block 2

  Received 24 Aug, published by the council 8 Sep 2026 Amendments
• 26/00487/VAR Granted

  Watford Rugby Club Radlett Road Watford WD24 4LH

  Variation of condition 2 (change the approved lighting design) of planning permission 25/00136/FUL

  Received 26 Jun, published by the council 24 Jul 2026 Amendments
• 26/00481/VAR Refused

  105 Langley Way Watford WD17 3ED

  Variation of Condition 2 (approved drawings) of planning permission 25/01076/FULH. Minor amendment - hip roof to gable to match LDC for hip to gable loft conversion.

  Received 25 Jun, published by the council 24 Jul 2026 Amendments