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Planning application

39 Cassiobury Drive Watford WD17 3AA

Granted Watford 26/00153/FULH Full householder

Works: Extension Domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of two storey front extension

As published by the council, reference 26/00153/FULH

Application record

Reference
26/00153/FULH
Type
Full householder
Status
Approved
Decision
Granted As published: Conditional Planning Permission
Received
24 Feb 2026
Validated
27 Feb 2026
Decided
23 Apr 2026
Ward
Park
Decision by
Delegated Decision
Postcode
WD17 3AA

Site history

Applications at this address on the Watford register

This site has had 6 applications since 2019: 5 approved, 0 refused.

  • 26/00757/NONMAT Awaiting decision

    39 Cassiobury Drive Watford WD17 3AA

    Non - material amendment pursuant to planning permission 26/00153/FULH for change from side window on lower ground floor to side door facing brick wall of neighbours garage

    Submitted 28 Sep 2026 Amendments
  • 21/01782/NONMAT Granted

    39 Cassiobury Drive Watford WD17 3AA

    Non-material amendment to planning permission 21/01085/FULH for a change in design from a pitched roof to a flat roof.

    Decided 5 Jan 2022 Amendments
  • 21/01085/FULH Granted

    39 Cassiobury Drive Watford WD17 3AA

    Erection of single storey rear extension

    Decided 3 Sep 2021 Householder
  • 20/00292/FULH Granted

    39 Cassiobury Drive Watford WD17 3AA

    Erection of an outbuilding (retrospective)

    Decided 15 May 2020 Householder
  • 19/01419/FULH Granted

    39 Cassiobury Drive Watford WD17 3AA

    Erection of a single storey front extension

    Decided 31 Jan 2020 Householder

Timeline

Dates from the published record

  1. 24 Feb 2026

    Received by Watford

  2. 27 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 23 Apr 2026

    Decision issued: Conditional Planning Permission

  4. 9 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/00757/NONMAT Awaiting decision

    39 Cassiobury Drive Watford WD17 3AA

    Non - material amendment pursuant to planning permission 26/00153/FULH for change from side window on lower ground floor to side door facing brick wall of neighbours garage

    Submitted 28 Sep 2026 Amendments

Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Watford granted permission on 23 April 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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 39 Cassiobury Drive Watford WD17 3AA

    21/01782/NONMAT Submitted 8 Dec 2021 50 yards away

    Non-material amendment to planning permission 21/01085/FULH for a change in design from a pitched roof to a flat roof.

    Granted Amendments 5 docs

  • 39 Cassiobury Drive Watford WD17 3AA

    19/01419/FULH Submitted 9 Dec 2019 50 yards away

    Erection of a single storey front extension

    Granted Householder Extension 5 docs
    Small domestic

  • 39 Cassiobury Drive Watford WD17 3AA

    20/00292/FULH Submitted 12 Mar 2020 50 yards away

    Erection of an outbuilding (retrospective)

    Granted Householder 7 docs
    Small domestic

  • 39 Cassiobury Drive Watford WD17 3AA

    21/01085/FULH Submitted 16 Jul 2021 50 yards away

    Erection of single storey rear extension

    Granted Householder Extension 5 docs
    Small domestic

  • 39 Cassiobury Drive Watford WD17 3AA

    26/00757/NONMAT Submitted 28 Sep 2026 50 yards away

    90% historically approved · decision due ~23 Nov

    Non - material amendment pursuant to planning permission 26/00153/FULH for change from side window on lower ground floor to side door facing brick wall of neighbours garage

    Awaiting decision Amendments Windows or glazing 3 docs

  • 45 Cassiobury Drive Watford Hertfordshire WD17 3AA

    22/01313/FUL Submitted 11 Nov 2022 50 yards away

    Demolition of existing 2 storey house and reconstruction of new 2 storey house

    Granted Full applications Demolition 18 docs

In Watford

  • 26/00644/FULH Granted

    16 Garden Close Watford Hertfordshire WD17 3DP

    Erection of a two storey side extension with new two storey gables entrance atrium and front two-storey bay. Single storey side extension to left hand side to house the new garage and single storey rear infill extension no more than 6m`s deep from the original wall.

    Received 14 Aug, published by the council 22 Aug 2026 Householder
  • 26/00754/FULH Awaiting decision

    498 Whippendell Road Watford WD18 7QJ

    Erection of a ground floor wrap around extension, plus front porch.

    Received 28 Sep, published by the council 7 Oct 2026 Householder
  • 26/00759/FULH Awaiting decision

    Gorran Haven Trevellance Way Watford WD25 0LY

    Erection of a double storey side and rear extensions and a single storey front extension.

    Received 28 Sep, published by the council 7 Oct 2026 Householder
  • 26/00752/FULH Awaiting decision

    3 East Drive Watford Hertfordshire WD25 0AH

    Erection of single storey side extension and conversion of existing garage into habitable room

    Received 28 Sep, published by the council 1 Oct 2026 Householder
  • 26/00756/FULH Awaiting decision

    40 Capel Road Watford WD19 4AE

    Erection of single storey rear extension

    Received 28 Sep, published by the council 1 Oct 2026 Householder