18 Alva Way Carpenders Park Watford Hertfordshire WD19 5ED

1. 6 Mar 2025

   Received by Three Rivers

2. 24 Apr 2025

   Decision issued: approved

3. 19 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 24 Alva Way Carpenders Park Watford Hertfordshire WD19 5ED

  25/1583/FUL Submitted 16 Sep 2025 25m away

  Demolition of existing rear extension and construction of single storey rear extension, front porch extension; loft conversion including hip to gable roof extension, rear dormer with Juliet balcony and front rooflights

  Granted Full applications Extension Loft or dormer +1 22 docs
  Small domestic

• 4A Alva Way Carpenders Park Watford Hertfordshire WD19 5ED

  23/2058/CLPD Submitted 1 Dec 2023 73m away

  Certificate of Lawfulness Proposed Development: Conversion of garage into habitable accommodation.

  Granted Lawful development 17 docs

• 4A Alva Way Carpenders Park Watford Hertfordshire WD19 5ED

  23/2057/FUL Submitted 1 Dec 2023 73m away

  Extension of existing dropped kerb and extension of hardstanding to existing driveway

  Withdrawn Full applications Extension 18 docs

• 36 Alva Way Carpenders Park Hertfordshire WD19 5ED

  22/0895/FUL Submitted 12 May 2022 80m away

  Construction of an outbuilding.

  Granted Full applications 9 docs

• 126 Greenfield Avenue Carpenders Park Watford Hertfordshire WD19 5DQ

  24/0737/FUL Submitted 7 May 2024 129m away

  Construction of single storey rear extension and lower ground floor extension; loft conversion with roof extension including increase in ridge height, with front and rear dormers and side rooflights; external materials including render.

  Granted Full applications Extension Loft or dormer +1 12 docs
  Small domestic

• 126 Greenfield Avenue Carpenders Park Watford Hertfordshire WD19 5DQ

  23/1888/FUL Submitted 8 Nov 2023 129m away

  Partial demolition of existing dwelling and construction of single storey front, side and rear extension including front porch, lower ground floor extension, loft conversion including front/side/rear rooflights, relocation of entrance door, internal alterations and alterations to fenestration

  Withdrawn Full applications Extension Loft or dormer +2 16 docs
  Small domestic

• 26/0460/CLED Granted

  Annexe Hart Hall Hyde Lane Nash Mills Hemel Hempstead Hertfordshire HP3 8SA

  Certificate of Lawfulness Existing Use: Use of annexe as an independent dwelling

  19 Mar 2026 Lawful development
• 26/0724/CLED Granted

  70 The Mead Carpenders Park Watford Hertfordshire WD19 5BU

  Certificate of Lawfulness Existing Use: Use of annexe as a separate dwelling

  5 May 2026 Lawful development
• 25/1151/CLED Refused

  Unit 6 Century Court Tolpits Lane Watford Hertfordshire

  Certificate of Lawfulness Existing Use: Use of property as single dwellinghouse (Use Class C3)

  4 Jul 2025 Lawful development
• 26/0736/CLPD Granted

  45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to gable roof extension with rear juliet dormer and window, front rooflights, side window

  7 May 2026 Lawful development
• 26/0631/CLPD Granted

  Clovelly Bell Lane Bedmond Abbots Langley Hertfordshire WD5 0QS

  Certificate of Lawfulness Proposed Development: Loft conversion including hip to dutch hip roof extension, rear juliet dormer with windows

  20 Apr 2026 Lawful development