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Planning application

77 Cassiobury Park Avenue Watford WD18 7LD

Granted Watford 25/00426/FULH Full householder

Works: Extension Small 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 a single storey rear extension.

As published by the council, reference 25/00426/FULH

Application record

Reference
25/00426/FULH
Type
Full householder
Status
Approved
Decision
Granted As published: Conditional Planning Permission
Received
2 May 2025
Validated
29 May 2025
Decided
24 Jul 2025
Ward
Park
Decision by
Delegated Decision
Postcode
WD18 7LD

Site history

Applications at this address on the Watford register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 25/00425/LDC Granted

    77 Cassiobury Park Avenue Watford WD18 7LD

    Lawful Development Certificate for roof alterations including hip to gable alterations and construction of rear dormer window and velux windows to front elevation.

    Decided 24 Jul 2025 Lawful development

Timeline

Dates from the published record

  1. 2 May 2025

    Received by Watford

  2. 29 May 2025

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2025

    Decision issued: Conditional Planning Permission

  4. 26 Jul 2026

    Added to PlanIndex

Documents

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

5 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 24 July 2025, 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

  • 77 Cassiobury Park Avenue Watford WD18 7LD

    25/00425/LDC Submitted 2 May 2025 50 yards away

    Lawful Development Certificate for roof alterations including hip to gable alterations and construction of rear dormer window and velux windows to front elevation.

    Granted Lawful development Loft or dormer Roofing +1 6 docs

  • 73 Cassiobury Park Avenue Watford WD18 7LD

    20/00370/HPD Submitted 1 Apr 2020 50 yards away

    The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.0m for which the maximum height would be 3.0m and for which the height of the eaves would be 3.0m

    Granted Prior approval Extension 4 docs
    Small domestic

  • 71 Cassiobury Park Avenue Watford WD18 7LD

    24/00299/HPD Submitted 27 Mar 2024 50 yards away

    The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6.00m for which the maximum height would be 3.20m and for which the height of the eaves would be 3.00m

    Granted Prior approval Extension 4 docs
    Small domestic

  • 85 Cassiobury Park Avenue Watford WD18 7LH

    21/01599/LDC Submitted 29 Oct 2021 50 yards away

    Lawful development certificate for proposed hip to gable loft conversion with rear dormer, obscured gable window and 3x rooflights

    Granted Lawful development Loft or dormer Windows or glazing 11 docs

  • 80 Cassiobury Park Avenue Watford WD18 7LF

    22/00072/FULH Submitted 19 Jan 2022 50 yards away

    Demolition of existing detached garage, erection of part single storey, part two storey side and rear extensions and entrance porch to front elevation

    Granted Householder Extension Demolition 5 docs
    Small domestic

  • 65 Cassiobury Park Avenue Watford WD18 7LD

    24/00168/LDC Submitted 27 Feb 2024 50 yards away

    Lawful Development Certificate for a loft extension.

    Granted Lawful development Extension Loft or dormer 13 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