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Planning application

20/00799/FULH

22 Cassiobury Park Avenue Watford WD18 7LB

Refused Watford Full householder

Proposal

Demolition of existing conservatory and construction of a single storey rear extension, first floor side extension above existing garage, first floor rear extension and relocated front entrance door with canopy roof over. New front boundary wall, to a height not exceeding the existing front boundary wall.

As published by the council, reference 20/00799/FULH

Timeline

Dates from the published record

  1. 31 Jul 2020

    Received by Watford

  2. 24 Sep 2020

    Decision issued: Refuse Planning Permission

  3. 26 Jul 2026

    Added to PlanIndex

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • 20/00791/TPO Granted

    52 Rickmansworth Road Watford WD18 7HT

    Works to trees under TPO277. Tree T14 - Walnut (Juglans nigra) - reduce crown by 25% (2-2.5m) to suitable growth points - reduce branch length of low hanging inbound branches by 2m - remove any deadwood branches.

    30 Jul 2020 95m away Trees
  • 26/00480/FULH Awaiting decision

    23 Shepherds Road Watford WD18 7HU

    Erection of a ground and first floor extensions, loft conversion with dormer and roof lights and frameless glass link.

    25 Jun 2026 153m away Householder
  • 25/00493/FULH Refused

    23 Shepherds Road Watford WD18 7HU

    Erection of a link to garage and construction of two rear dormer windows and insertion of two heritage roof lights to rear elevation (amended description)

    27 May 2025 153m away Householder
  • 23/00964/NONMAT Granted

    13 Shepherds Road Watford WD18 7HU

    Non-material amendment to Condition 3 pursuant to planning permission 21/01623/FULH for a change of material specification from existing planning permission. Roof to be changed from brown concrete tiles to Redland Concrete Plain Roof Tile - Slate Grey. Windows to be changed from white uPVC to grey aluminium: RAL colour 9007.

    23 Oct 2023 155m away Amendments
  • 20/00748/TPO Granted

    13 Shepherds Road Watford WD18 7HU

    Works to T1 Goat Willow, T2 Apple, T3 Pear, T4 Holly, T5 Hazel, G1 Holly (TPO184/TPO277)

    22 Jul 2020 155m away Trees
  • 26/00520/TPO Awaiting decision

    13 Shepherds Road Watford WD18 7HU

    Works to trees under Group TPO.No.277 - Ash - reduce height by up to 2.5m and lateral spread on all sides up to 2m, remove lowest limbs back to main stem, Willow - Cut back all lateral growth back to the patio line by removing up to 3m, Holly - Cut back all lateral growth back to the patio line by removing up to 2m

    8 Jul 2026 155m away Trees

In Watford

  • 26/00582/FULH Awaiting decision

    23 Westlea Avenue Watford WD25 9DH

    Erection of single story side extension and front porch extension

    28 Jul 2026 Householder
  • 26/00578/FULH Awaiting decision

    149 Rickmansworth Road Watford WD18 7FH

    Erection of a single storey side and dormer roof extension comprising of new side Dutch gable to match 149a Rickmansworth Road.

    27 Jul 2026 Householder
  • 26/00576/FULH Awaiting decision

    86 Fourth Avenue Watford Hertfordshire WD25 9QQ

    (Retrospective) Erection of a single-storey outbuilding with a flat roof. The maximum overall height of the building is 2,850 mm.

    27 Jul 2026 Householder
  • 26/00449/FULH Refused

    61 Park Road Watford WD17 4QJ

    Erection of a first-floor extension over the existing flat roof (incorporating the scheme previously approved under ref: 26/00051/VAR) alongside a new loft conversion to provide additional habitable accommodation

    15 Jun 2026 Householder
  • 26/00413/FULH Decided

    48 Meadow Road Watford WD25 0JA

    Erection of a single storey side extension.

    2 Jun 2026 Householder