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Planning application

121 Cassiobury Drive Watford WD17 3AH

Refused Watford 25/00134/FULH Full householder

Works: Extension Loft or dormer Domestic

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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

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

As published by the council, reference 25/00134/FULH

Application record

Reference
25/00134/FULH
Type
Full householder
Status
Refused
Decision
Refused As published: Refuse Planning Permission
Received
18 Feb 2025
Validated
3 Mar 2025
Decided
1 May 2025
Ward
Park
Decision by
Delegated Decision
Postcode
WD17 3AH

Site history

Applications at this address on the Watford register

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

  • 24/00137/FULH Refused

    121 Cassiobury Drive Watford WD17 3AH

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

    Decided 11 Apr 2024 Householder

Timeline

Dates from the published record

  1. 18 Feb 2025

    Received by Watford

  2. 3 Mar 2025

    Validated

    Checked as complete and ready for consideration.

  3. 1 May 2025

    Decision issued: Refuse Planning Permission

  4. 9 Aug 2026

    Added to PlanIndex

Documents

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

27 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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Open the documents

What this refusal means

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.

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

  • 121 Cassiobury Drive Watford WD17 3AH

    24/00137/FULH Submitted 19 Feb 2024 50 yards away

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

    Refused Householder Extension Loft or dormer 28 docs
    Domestic

  • 128 Cassiobury Drive Watford WD17 3AJ

    20/00742/LDC Submitted 21 Jul 2020 50 yards 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 50 yards away

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

    Refused Householder Loft or dormer 15 docs
    Domestic

  • 134 Cassiobury Drive Watford WD17 3AJ

    19/00203/FULH Submitted 22 Feb 2019 50 yards away

    Erection of a garden gazebo at end of the garden (retrospective)

    Granted Householder 10 docs
    Domestic

  • 122 Cassiobury Drive Watford WD17 3AJ

    21/00550/LDC Submitted 13 Apr 2021 100 yards 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

  • 14 Cottage Close Watford WD17 3NN

    26/00764/TPO Submitted 30 Sep 2026 100 yards away

    96% historically approved · decision due ~25 Nov

    Works to trees T15 and T16 , x2 Sycamores under TPO.No.49 - reduce height by 2m and diameter to previous points. The trees have dead branches and shedding them into neighbouring properties.

    Awaiting decision Trees 3 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