503 Whippendell Road Watford WD18 7QB

1. 3 Aug 2026

   Received by Watford

2. 9 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 September 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 55 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 lawful development applications in a median of 49 days. More in our guide to how long planning decisions take.

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.

• 511 Whippendell Road Watford Hertfordshire WD18 7QB

  22/00277/LDC Submitted 2 Mar 2022 35m away

  Lawful Development Certificate for a hip to gable roof alteration and provision of rear dormer.

  Granted Lawful development Loft or dormer 6 docs

• 100 Sydney Road Watford WD18 7QX

  24/00518/LDC Submitted 31 May 2024 45m away

  Lawful development certificate for proposed loft conversion including rear dormer and x2 front roof lights

  Refused Lawful development Loft or dormer 9 docs

• 100 Sydney Road Watford WD18 7QX

  24/00519/HPD Submitted 31 May 2024 45m 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 3.05m and for which the height of the eaves would be 3.00m

  Granted Prior approval Extension 8 docs
  Small domestic

• 21 The Gateway Watford Hertfordshire WD18 7HW

  22/00889/LDC Submitted 11 Jul 2022 45m away

  Lawful Development Certificate for installation of solar panels on the roof of the building.

  Refused Lawful development 10 docs

• 499 Whippendell Road Watford WD18 7PN

  23/00754/LDC Submitted 28 Aug 2023 46m away

  Lawful Development Certificate for proposed two storey rear extension, single storey side extension and front porch.

  Refused Lawful development Extension 13 docs
  Small domestic

• 495 Whippendell Road Watford Hertfordshire WD18 7PN

  22/01213/FULM Submitted 19 Oct 2022 54m away

  Demolition of 495-499 Whippendell Road and erection of a new 5 storey apartment block containing 19 flats [11 x 1 bed / 7 x 2 bed / 1 x 3bed] and 3 x 3 bed mews houses with associated external private amenity space. New access arrangement from Whippendell Road which will serve a central parking courtyard for 9 spaces including access to bin and cycle storage.

  Withdrawn Full applications New dwelling Demolition 49 docs
  Major scheme

• 26/00700/LDC Awaiting decision

  13 Orchard Close Watford WD17 3DU

  Lawful Development Certificate for a hip to gable loft conversion with three skylights on the front slope.

  3 Sep 2026 Lawful development
• 26/00494/LDC Refused

  204A St Albans Road Watford WD24 4AS

  Lawful development certificate for existing use of the first and second floors as two separate self-contained residential dwellings (Use Class C3), each comprising independent living accommodation, kitchen facilities, bathroom facilities and ancillary storage, with access provided via the existing external rear staircase

  29 Jun 2026 Lawful development
• 26/00531/LDC Granted

  1014 St Albans Road Watford WD25 9NP

  Lawful development certificate for proposed hip to gable roof extension and loft conversion

  10 Jul 2026 Lawful development
• 26/00549/LDC Granted

  4 Field Road Watford WD19 4DR

  Lawful Development Certificate to replace single storey rear extension.

  17 Jul 2026 Lawful development
• 26/00659/LDC Awaiting decision

  38 Talbot Avenue Watford WD19 4AX

  Lawful development certificate for proposed demolition of existing rear extension and erection of single storey rear extension

  20 Aug 2026 Lawful development