3 The Crest Welwyn AL6 0EF

This site has had 4 applications since 2024: 3 approved, 1 refused.

• 6/2024/1773/HOUSE Granted

  3 The Crest Welwyn AL6 0EF

  Erection of part single, part two storey side extension following the demolition of the existing conservatory and alterations to openings

  Decided 25 Nov 2024 Householder
• 6/2024/1772/HOUSE Refused

  3 The Crest Welwyn AL6 0EF

  Installation of electric sliding gate

  Decided 5 Nov 2024 Householder
• 6/2024/1771/LAWP Granted

  3 The Crest Welwyn AL6 0EF

  Certificate of lawfulness for conversion of garage into playroom and alterations to fenestration

  Decided 5 Nov 2024 Lawful development

1. 13 Nov 2024

   Received by Welwyn Hatfield

2. 2 Jan 2025

   Decision issued: Granted

3. 13 Sep 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 2 January 2025, 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.

• 3 The Crest Welwyn AL6 0EF

  6/2024/1773/HOUSE Submitted 12 Sep 2024 50 yards away

  Erection of part single, part two storey side extension following the demolition of the existing conservatory and alterations to openings

  Granted Householder Extension Demolition
  Small domestic

• 3 The Crest Welwyn AL6 0EF

  6/2024/1772/HOUSE Submitted 12 Sep 2024 50 yards away

  Installation of electric sliding gate

  Refused Householder
  Domestic

• 3 The Crest Welwyn AL6 0EF

  6/2024/1771/LAWP Submitted 12 Sep 2024 50 yards away

  Certificate of lawfulness for conversion of garage into playroom and alterations to fenestration

  Granted Lawful development Windows or glazing

• 22 The Avenue Welwyn AL6 0PP

  6/2026/1441/FULL Submitted 17 Aug 2026 50 yards away

  Erection of one two-storey five bedroom detached dwelling and eight two bedroom flats laid out within two two storey blocks of four and associated infrastructure and landscape works following the demolition of the existing dwelling and separate detached building

  Refused Full applications New dwelling Demolition
  Domestic

• 39 The Avenue Welwyn AL6 0PW

  6/2019/2709/HOUSE Submitted 28 Oct 2019 150 yards away

  Erection of a two storey rear and side extension and alterations to the roof following the demolition of existing conservatory and rear extension and the addition of a pitched roof to the existing garage

  Granted Householder Extension Demolition 1 doc
  Small domestic

• 7 The Brambles Welwyn Hertfordshire AL6 0PG

  21/01400/FPH Submitted 30 Apr 2021 150 yards away

  Part single storey, part two storey side extension and a part single storey, part two storey rear extension

  Granted Householder Extension 8 docs
  Small domestic

• 6/2026/1370/LAWP Granted

  17-17A Mill Lane Welwyn AL6 9EU

  Certificate of lawfulness for the change of use of offices to 3 x 2 bedroom flats

  Received 3 Aug, published by the council 15 Aug 2026 Lawful development
• 6/2026/1218/LAWP Granted

  43 Great Ley Welwyn Garden City AL7 4TJ

  Certificate of lawfulness for rear dormer roof extension to form a loft conversion

  Received 13 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1250/LAWP Granted

  40 Dellsome Lane Welham Green Hatfield AL9 7ND

  Certificate of lawfulness for Class A - Larger single storey rear extension (previously subject to prior approval application ref: 6/25/1851/PN8), Class B - Roof extension/hip to gable conversion, Class C - Other alterations to roof

  Received 16 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1210/LAWE Refused

  9 Flamingo Close Hatfield AL10 9LU

  Certificate of lawfulness for the existing use of the property as a HMO (Use Class C4) in continuous use for over 10 years

  Received 10 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/0735/LAWE Refused

  1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

  Certificate of lawfulness for the existing use of the land as residential garden land ancillary to the dwellinghouse continuously since 2012

  Received 27 Apr, published by the council 24 Jul 2026 Lawful development