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Planning application

21 Cassiobury Drive Watford WD17 3AA

Granted Watford 26/00349/FULH Full householder

Works: Windows or glazing 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

Conversion of existing garage into habitable space including new bay window

As published by the council, reference 26/00349/FULH

Application record

Reference
26/00349/FULH
Type
Full householder
Status
Approved
Decision
Granted As published: Conditional Planning Permission
Received
5 May 2026
Validated
21 May 2026
Decided
20 Jul 2026
Ward
Park
Decision by
Delegated
Postcode
WD17 3AA

Timeline

Dates from the published record

  1. 5 May 2026

    Received by Watford

  2. 21 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 20 Jul 2026

    Decision issued: Conditional Planning Permission

  4. 24 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

AMH Build Group Ltd Agent, registered in Southall

Active · incorporated 2026 · Southall

1 application on PlanIndex

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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.

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What this grant of permission means

Watford granted permission on 20 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.

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

  • 25 Cassiobury Drive Watford Hertfordshire WD17 3AA

    22/00524/FULH Submitted 21 Apr 2022 50 yards away

    Retrospective application to retain garden outbuilding (games room)

    Granted Householder 8 docs
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  • 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

  • 15 Cassiobury Drive Watford WD17 3AA

    22/00592/FULH Submitted 4 May 2022 50 yards away

    Erection of a single storey rear extension with flat roof and rooflights.

    Granted Householder Extension Loft or dormer 7 docs
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  • 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

  • 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
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  • 22 Cassiobury Drive Watford Hertfordshire WD17 3AB

    22/00980/VAR Submitted 9 Aug 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 Condition Number(s): 2 Conditions(s) Removal: To refer to revised drawings showing smooth white render to all external walls and two roof lanterns to the rear extension roof. The development shall be carried out in accordance with the following drawings, unless otherwise approved in writing by the Local Planning Authority: Drawing nos. 3453.RPL1, 3453.RPL2, 3453.OS

    Granted Amendments Extension 5 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