121 Cassiobury Drive Watford WD17 3AH

This site has had 2 applications since 2024: 0 approved, 2 refused.

• 25/00134/FULH Refused

  121 Cassiobury Drive Watford WD17 3AH

  Erection of a two storey rear extension, alterations to roof and loft conversion to existing dwelling house

  Decided 1 May 2025 Householder

1. 19 Feb 2024

   Received by Watford

2. 11 Apr 2024

   Decision issued: Refuse Planning Permission

3. 22 Aug 2026

   Added to PlanIndex

Watford refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 121 Cassiobury Drive Watford WD17 3AH

  25/00134/FULH Submitted 18 Feb 2025 2m away

  Erection of a two storey rear extension, alterations to roof and loft conversion to existing dwelling house

  Refused Householder Extension Loft or dormer 27 docs
  Domestic

• 128 Cassiobury Drive Watford WD17 3AJ

  20/00742/LDC Submitted 21 Jul 2020 58m away

  Lawful development certificate for proposed erection of 4m deep single storey rear extension

  Granted Lawful development Extension 6 docs
  Small domestic

• 128 Cassiobury Drive Watford WD17 3AJ

  21/01655/FULH Submitted 15 Nov 2021 58m away

  Proposed hip to gable loft conversion with front and rear roof lights.

  Refused Householder Loft or dormer 15 docs
  Domestic

• 122 Cassiobury Drive Watford WD17 3AJ

  21/00550/LDC Submitted 13 Apr 2021 71m away

  Lawful development certificate for erection of single storey side extension and loft conversion with dormers

  Granted Lawful development Extension Loft or dormer 13 docs
  Small domestic

• 10 Cottage Close Watford WD17 3NN

  18/01138/TPO Submitted 5 Sep 2018 104m away

  Works to trees in group A1 of TPO.19 (G1, G2, T1, T2, T3, T4, T5, T6 - as detailed in Section 5 of the application form)

  Granted Trees 4 docs

• 1 Cottage Close Watford WD17 3NN

  21/00588/TPO Submitted 19 Apr 2021 104m away

  Works to trees under TPO.49 Pine (T2) - either to be felled or significantly cut back due to excessive size. We feel the tree is severe risk to surrounding properties when subject to high winds.

  Refused Trees 4 docs

• 26/00582/FULH Decided

  23 Westlea Avenue Watford WD25 9DH

  Erection of single story side extension and front porch extension

  28 Jul 2026 Householder
• 26/00507/FULH Decided

  96 Sheepcot Lane Watford WD25 0EB

  Erection of single storey rear extension and double storey side and rear extension and fenestration alterations

  2 Jul 2026 Householder
• 26/00506/FULH Decided

  20 Orchard Drive Watford WD17 3DY

  Erection of part two storey rear extension and hip to gable loft conversion including rear domer extension and x 3 front rooflights

  1 Jul 2026 Householder
• 26/00443/FULH Refused

  71 Princes Avenue Watford WD18 7RR

  Erection of single storey side and rear extension

  11 Jun 2026 Householder
• 26/00688/FULH Awaiting decision

  54 Kingsfield Road Watford Hertfordshire WD19 4TR

  Erection of ground floor single storey rear and side return extension, hip to gable loft conversion including rear dormer

  27 Aug 2026 Householder