33 Cassiobury Park Avenue Watford WD18 7LA

This site has had 3 applications since 2020: 1 approved, 2 refused.

• 21/00053/HPD Refused

  33 Cassiobury Park Avenue Watford WD18 7LA

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 5.90m for which the maximum height would be 4.0m and for which the height of the eaves would be 3.60m.

  Decided 26 Feb 2021 Prior approval
• 20/00638/LDC Refused

  33 Cassiobury Park Avenue Watford WD18 7LA

  Lawful Development Certificate for replacement of the existing conservatory (which projects 3m into the garden from the back wall of the house), with a larger conservatory that projects 4.6m into the garden, with floor to ceiling glass windows (instead of the current dwarf wall design), and a glass roof (instead of the polycarb. roof).

  Decided 24 Jul 2020 Lawful development

1. 1 Mar 2021

   Received by Watford

2. 9 Apr 2021

   Decision issued: Conditional Planning Permission

3. 9 Aug 2026

   Added to PlanIndex

Watford granted permission on 9 April 2021, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 33 Cassiobury Park Avenue Watford WD18 7LA

  20/00638/LDC Submitted 22 Jun 2020 50 yards away

  Lawful Development Certificate for replacement of the existing conservatory (which projects 3m into the garden from the back wall of the house), with a larger conservatory that projects 4.6m into the garden, with floor to ceiling glass windows (instead of the current dwarf wall design), and a glass roof (instead of the polycarb. roof).

  Refused Lawful development Extension Windows or glazing 10 docs

• 33 Cassiobury Park Avenue Watford WD18 7LA

  21/00053/HPD Submitted 15 Jan 2021 50 yards away

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 5.90m for which the maximum height would be 4.0m and for which the height of the eaves would be 3.60m.

  Refused Prior approval Extension 10 docs
  Small domestic

• 38 Cassiobury Park Avenue Watford WD18 7LB

  19/01273/FULH Submitted 4 Nov 2019 50 yards away

  Demolition of existing single storey rear conservatory and rear extension, construction of new single storey rear extension, with associated internal alterations, converted garage with window to front to replace garage door, new front door and new front boundary planter wall.

  Granted Householder Extension Demolition +1 21 docs
  Small domestic

• 42 Cassiobury Park Avenue Watford WD18 7LB

  19/00515/FULH Submitted 9 May 2019 50 yards away

  Erection of double storey front extension, alterations to fenestration and window detailing to all elevations. Please refer design statement (19036 DS)

  Granted Householder Extension Windows or glazing 9 docs
  Domestic

• 42 Cassiobury Park Avenue Watford WD18 7LB

  18/01021/FULH Submitted 13 Aug 2018 50 yards away

  Erection of two-storey front extension facing Shepherds Road, alterations to fenestration and window detailing to all elevations.

  Refused Householder Extension Windows or glazing 13 docs
  Domestic

• Croquet Club House Cassiobury Park Watford

  23/01173/FUL Submitted 18 Dec 2023 100 yards away

  Proposed to install an automatic irrigation system for four croquet lawns with water supplied from a new borehole.

  Granted Full applications 44 docs

• 26/00654/FUL Granted

  226 - 228 St Albans Road Watford WD24 4AU

  Proposed changes to existing building colour and all window frames and doors to be painted Anthracite RAL 7016.

  Received 19 Aug, published by the council 22 Aug 2026 Full applications
• 26/00538/FUL Refused

  43A Fuller Road Watford Hertfordshire WD24 6QH

  Conversion of ground floor flat 43A into two flats with fenestration changes.

  Received 14 Jul, published by the council 15 Aug 2026 Full applications
• 26/00415/FUL Granted

  Island Thomas Sawyer Way Watford Hertfordshire

  Proposed enabling works (Site Remediation).

  Received 4 Jun, published by the council 24 Jul 2026 Full applications
• 26/00727/FUL Awaiting decision

  105 Horseshoe Lane Watford WD25 7HS

  Demolition of an existing side extension to facilitate a single storey side / rear and front extension, and changes to the existing porch roof.

  Received 15 Sep, published by the council 1 Oct 2026 Full applications
• 26/00721/FUL Awaiting decision

  Screwfix 10 Imperial Park Imperial Way Watford WD24 4PP

  Creation of new retail bakery (Use Class E(a)), new shop front, HVAC and associated works.

  Received 14 Sep, published by the council 22 Sep 2026 Full applications