14 Swiss Avenue Watford WD18 7LN

This site has had 2 applications since 2026: 2 approved, 0 refused.

• 26/00438/FULH Granted

  14 Swiss Avenue Watford WD18 7LN

  Erection of single storey part rear and part side extension

  Decided 3 Aug 2026 Householder

1. 27 May 2026

   Received by Watford

2. 16 Jul 2026

   Decision issued: Grant Lawful Development Certificate

3. 24 Jul 2026

   Added to PlanIndex

Watford granted permission on 16 July 2026, 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.

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.

• 14 Swiss Avenue Watford WD18 7LN

  26/00438/FULH Submitted 10 Jun 2026 50 yards away

  Erection of single storey part rear and part side extension

  Granted Householder Extension 10 docs
  Small domestic

• 10 Swiss Avenue Watford Hertfordshire WD18 7LN

  22/01323/FULH Submitted 14 Nov 2022 50 yards away

  Erection of single storey rear extension and raising existing garage roof

  Granted Householder Extension 15 docs
  Small domestic

• 2 Swiss Close Watford WD18 7LW

  18/01072/FULH Submitted 20 Aug 2018 50 yards away

  Erection of part two storey part single storey side extension and single storey rear extension

  Granted Householder Extension 11 docs
  Small domestic

• 94 Cassiobury Park Avenue Watford WD18 7LF

  23/00984/HPD Submitted 27 Oct 2023 50 yards away

  The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 5.0m for which the maximum height would be 4.0m and for which the height of the eaves would be 2.40m

  Granted Prior approval Extension 6 docs
  Small domestic

• 22 Swiss Avenue Watford WD18 7LN

  25/00718/FULH Submitted 1 Aug 2025 50 yards away

  Erection of new part ground and part first floor extensions to single family dwelling following demolition of existing single storey rear extension

  Granted Householder Extension Demolition 11 docs
  Small domestic

• 24 Swiss Avenue Watford WD18 7LN

  20/01440/HPD Submitted 17 Dec 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 3.20m and for which the height of eaves would be 2.90m

  Refused Prior approval Extension 6 docs
  Small domestic

• 26/00672/LDC Granted

  84 North Western Avenue Watford WD25 0AJ

  Lawful development certificate for proposed single storey rear extension

  Received 24 Aug, published by the council 14 Sep 2026 Lawful development
• 26/00714/LDC Awaiting decision

  25 Westbury Road Watford Hertfordshire WD18 0DL

  Lawful development certificate for proposed loft conversion including rear dormer and x front rooflights

  Received 8 Sep, published by the council 14 Sep 2026 Lawful development
• 26/00704/LDC Awaiting decision

  268 Hempstead Road Watford WD17 4LY

  Lawful development certificate for proposed hip to gable loft conversion to extend main ridge line and rear dormer

  Received 4 Sep, published by the council 14 Sep 2026 Lawful development
• 26/00605/LDC Granted

  503 Whippendell Road Watford WD18 7QB

  Lawful Development Certificate for existing use of hip to gable loft conversion including rear dormer, roof extension and x2 front roof lights

  Received 3 Aug, published by the council 9 Aug 2026 Lawful development
• 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.

  Received 3 Sep, published by the council 8 Sep 2026 Lawful development