13 Selwyn Avenue Hatfield AL10 9NR

1. 24 Jun 2021

   Received by Welwyn Hatfield

2. 1 Sep 2021

   Decision issued: Refused

3. 25 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 16 Selwyn Avenue Hatfield AL10 9NP

  6/2021/1333/HOUSE Submitted 26 Apr 2021 54m away

  Hip to gable conversion, insertion of a rear dormer and 3 x rooflight windows to the front elevation

  Granted Householder Loft or dormer Windows or glazing
  Domestic

• 24 Selwyn Avenue Hatfield AL10 9NP

  6/2024/1406/HOUSE Submitted 24 Jul 2024 81m away

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

  Granted Householder Extension
  Small domestic

• 22 Selwyn Drive Hatfield AL10 9NJ

  6/2021/0949/HOUSE Submitted 22 Mar 2021 105m away

  Retention of single storey outbuilding

  Granted Householder
  Small domestic

• 13 Ellenbrook Crescent Hatfield AL10 9RP

  6/2021/1082/HOUSE Submitted 1 Apr 2021 120m away

  Conversion of the garage into a bedroom, erection of a rear extension, insertion of downstairs bathroom

  Granted Householder Extension
  Domestic

• 10 Ellenbrook Crescent Hatfield AL10 9RP

  6/2024/2073/LAWP Submitted 28 Oct 2024 132m away

  Certificate of lawfulness for a hip to gable loft conversion with rear dormer

  Granted Lawful development Loft or dormer

• 9 Ellenbrook Crescent Hatfield AL10 9RP

  6/2023/0308/PN8 Submitted 8 Feb 2023 135m away

  Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 3.5m in height, 2.25m to the eaves

  Refused Prior approval Extension
  Small domestic

• 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

  27 Apr 2026 Lawful development
• 6/2026/1132/LAWE Refused

  19 Cunningham Avenue Hatfield AL10 9LR

  Certificate of existing lawfulness of a 5 person HMO since 6 April 2006

  30 Jun 2026 Lawful development
• 6/2026/1506/LAWP Awaiting decision

  Gosmore Brocket Road Welwyn Garden City AL8 7TT

  Erection of single storey side extensions x 2 and two storey rear extension

  27 Aug 2026 Lawful development
• 6/2026/1503/LAWE Awaiting decision

  27 Batterdale Hatfield AL9 5JG

  Certificate of lawfulness for the existing like-for-like replacement of damaged and aged windows on the front and rear elevations

  26 Aug 2026 Lawful development
• 6/2026/1044/LAWP Granted

  5 Peartree Court Welwyn Garden City AL7 3XN

  Certificate of lawfulness for the change of use from C3 (dwellinghouse) to C4 (HMO for up to 6 unrelated residents)

  15 Jun 2026 Lawful development