9 Observer Drive Watford WD18 7GR

1. 17 Sep 2026

   Received by Watford

2. 1 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Watford took a median of 53 days over the applications it decided in the last year.

This application is with Watford for determination, against a statutory target of eight weeks. Over the last year Watford decided householder applications in a median of 55 days. More in our guide to how long planning decisions take.

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.

• 128 Rickmansworth Road Watford WD18 7JG

  24/00368/HPD Submitted 18 Apr 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 2.80m

  Granted Prior approval Extension 9 docs
  Small domestic

• 13 The Chase Watford WD18 7JQ

  21/01749/HPD Submitted 2 Dec 2021 100 yards away

  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 3.6m and for which the height of the eaves would be 2.9m

  Granted Prior approval Extension 5 docs
  Small domestic

• 11 The Chase Watford WD18 7JQ

  26/00697/HPD Submitted 2 Sep 2026 100 yards away

  64% historically approved · decision due ~30 Oct

  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 2.8m

  Awaiting decision Prior approval Extension 3 docs
  Small domestic

• 7 The Chase Watford WD18 7JQ

  21/01135/FULH Submitted 26 Jul 2021 100 yards away

  Erection of single storey rear extension

  Granted Householder Extension 9 docs
  Small domestic

• 5 The Chase Watford WD18 7JQ

  23/00500/LDC Submitted 6 Jun 2023 100 yards away

  Lawful Development Certificate for Erection of Outbuilding.

  Granted Lawful development 5 docs

• 29 The Chase Watford WD18 7JQ

  21/01722/FULH Submitted 29 Nov 2021 100 yards away

  Erection of a single storey rear extension/garage conversion/open porch.

  Granted Householder Extension 8 docs
  Small domestic

• 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