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Planning application

147 Cassiobury Drive Watford WD17 3AH

Granted Watford 25/00029/HPD Householder Permitted Development

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

The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 7.70m for which the maximum height would be 2.98m and for which the height of the eaves would be 2.98m

As published by the council, reference 25/00029/HPD

Application record

Reference
25/00029/HPD
Type
Householder Permitted Development
Status
Approved
Decision
Granted As published: Grant HPD Prior Approval
Received
13 Jan 2025
Validated
21 Jan 2025
Decided
4 Mar 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 2025: 2 approved, 0 refused.

  • 25/00030/FULH Granted

    147 Cassiobury Drive Watford WD17 3AH

    Erection of a part single part two storey rear extension.

    Decided 17 Mar 2025 Householder

Timeline

Dates from the published record

  1. 13 Jan 2025

    Received by Watford

  2. 21 Jan 2025

    Validated

    Checked as complete and ready for consideration.

  3. 4 Mar 2025

    Decision issued: Grant HPD Prior Approval

  4. 9 Aug 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 4 March 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 prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 147 Cassiobury Drive Watford WD17 3AH

    25/00030/FULH Submitted 13 Jan 2025 50 yards away

    Erection of a part single part two storey rear extension.

    Granted Householder Extension 8 docs
    Domestic

  • 1 Berceau Walk Watford WD17 3BL

    19/00631/LDC Submitted 3 Jun 2019 50 yards away

    Lawful Development Certificate for hip to gable loft extension with rear dormer, front rooflights and side utility extension.

    Granted Lawful development Extension Loft or dormer 14 docs

  • 69 Langley Way Watford Hertfordshire WD17 3EB

    22/01253/FULH Submitted 26 Oct 2022 50 yards away

    Changes to the proposed extensions approved under planning permission ref: 22/00723/FULH. Erection of rear balcony, addition of rooflight above single storey rear extension, replacement of window in side extension front elevation for a door, addition of door to side elevation, repositioning of front entrance door, reduction in number of rooflights.

    Granted Householder Extension Loft or dormer +1 6 docs
    Small domestic

  • 69 Langley Way Watford Hertfordshire WD17 3EB

    22/00723/FULH Submitted 31 May 2022 50 yards away

    Erection of part single storey, part two storey rear extension, two storey side extension and loft conversion including front and rear rooflights; renewal of previously approved application ref: 18/01493/FULH.

    Granted Householder Extension Loft or dormer 5 docs
    Small domestic

  • 69 Langley Way Watford WD17 3EB

    18/01493/FULH Submitted 21 Nov 2018 50 yards away

    Erection of part single storey, part two storey rear extension, two storey side extension and loft conversion including front and rear rooflights

    Granted Householder Extension Loft or dormer 5 docs
    Small domestic

  • 3 Berceau Walk Watford Hertfordshire WD17 3BL

    23/00782/LDC Submitted 6 Sep 2023 100 yards away

    Lawful Development Certificate for Further loft conversion with hip to gable wall conversion to create two bedrooms and a shower room

    Granted Lawful development Loft or dormer 17 docs

In Watford

  • 26/00781/HPD Awaiting decision

    50 Butterwick Watford Hertfordshire WD25 9SD

    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 2.70m.

    Received 5 Oct, published by the council 7 Oct 2026 Prior approval
  • 26/00777/HPD Awaiting decision

    984 St Albans Road Watford WD25 9NP

    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

    Received 2 Oct, published by the council 7 Oct 2026 Prior approval
  • 26/00660/HPD Granted

    12 Kingswood Road Watford Hertfordshire WD25 0EE

    The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 4.50m for which the maximum height would be 4m and for which the height of the eaves would be 3m

    Received 20 Aug, published by the council 22 Aug 2026 Prior approval
  • 26/00617/AAPA Refused

    Hanover Court 85 - 87 King Georges Avenue Watford WD18 7QE

    Notification of prior approval for upward extension above existing block of flats to provide x3 new flats

    Received 10 Aug, published by the council 15 Aug 2026 Prior approval
  • 26/00769/HPD Awaiting decision

    18 Hazel Tree Road Watford Hertfordshire WD24 6RQ

    The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6m for which the maximum height would be 3.3m and for which the height of the eaves would be 3m

    Received 30 Sep, published by the council 7 Oct 2026 Prior approval