11 Whippendell Road Watford WD18 7LY

1. 25 Apr 2025

   Received by Watford

2. 20 May 2025

   Decision issued: Refuse Lawful Development Certificate

3. 26 Jul 2026

   Added to PlanIndex

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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 13 Whippendell Road Watford WD18 7LY

  18/01253/FUL Submitted 1 Oct 2018 50 yards away

  Change the property from a 6 bedroom HMO to a 7 bedroom HMO

  Granted Full applications 11 docs

• 15 Whippendell Road Watford WD18 7LY

  26/00073/LDC Submitted 3 Feb 2026 50 yards away

  Change of use from a single dwellinghouse (Class C3) to a House of Multiple Occupation (Class C4) 6 bed; loft conversion with the erection of two dormers; erection of single storey rear extension

  Granted Lawful development Extension Loft or dormer 13 docs
  Small domestic

• 52 Addiscombe Road Watford WD18 0NB

  19/00550/FULH Submitted 16 May 2019 50 yards away

  Erection of a first floor rear extension.

  Refused Householder Extension 14 docs
  Domestic

• 38 Addiscombe Road Watford WD18 0ND

  23/00682/HPD Submitted 4 Aug 2023 100 yards away

  The erection of a single storey rear extensions which would extend beyond the rear wall of the original house by 4.5m and 6m for which the maximum height would be 2.8m and for which the height of the eaves would be 2.6m

  Granted Prior approval Extension 4 docs
  Small domestic

• 28 Chester Road Watford Hertfordshire WD18 0RQ

  22/00450/HPD Submitted 4 Apr 2022 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 3m and for which the height of the eaves would be 2.8m

  Granted Prior approval Extension 9 docs
  Small domestic

• 36 Addiscombe Road Watford WD18 0ND

  18/01106/LDC Submitted 29 Aug 2018 100 yards away

  Lawful Development Certificate for a single story rear extension.

  Refused Lawful development Extension 5 docs

• 26/00740/LDC Granted

  344 Hagden Lane Watford WD18 7SH

  Lawful development certificate for proposed erection of outbuilding (12mx5m) at the South-West corner of the rear garden

  Received 21 Sep, published by the council 1 Oct 2026 Lawful development
• 26/00763/LDC Awaiting decision

  134 Balmoral Road Watford WD24 4ET

  Lawful Development Certificate for proposed hip to gable loft conversion including rear dormer and x2 front roof lights.

  Received 29 Sep, published by the council 7 Oct 2026 Lawful development
• 26/00755/LDC Awaiting decision

  498 Whippendell Road Watford WD18 7QJ

  Lawful Development Certificate for a loft conversion with rear dormer window.

  Received 28 Sep, published by the council 7 Oct 2026 Lawful development
• 26/00579/LDC Refused

  37 Harford Drive Watford Hertfordshire WD17 3DQ

  Lawful development certificate for proposed erection of garden outbuilding for storage/office use and alterations to existing front porch

  Received 27 Jul, published by the council 9 Aug 2026 Lawful development
• 26/00618/LDC Granted

  8 Woodhurst Avenue Watford WD25 9RQ

  Lawful Development Certificate for a hip-to-gable roof extension and rear dormer to facilitate a loft conversion, including associated roof alterations and windows/roof lights.

  Received 10 Aug, published by the council 16 Aug 2026 Lawful development