27 Batterdale Hatfield AL9 5JG

1. 26 Aug 2026

   Received by Welwyn Hatfield

2. 31 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Welwyn Hatfield took a median of 58 days over the applications it decided in the last year.

This application is with Welwyn Hatfield for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• Andre House 19-25 Salisbury Square Hatfield AL9 5BT

  6/2021/1244/PN11 Submitted 16 Apr 2021 103m away

  Prior approval for change of use from offices (Class B1(a)) to dwellinghouses (Class C3) to create 8 flats

  Granted Prior approval New dwelling
  Several homes

• 27 The Broadway Hatfield AL9 5HZ

  6/2024/1450/TC Submitted 31 Jul 2024 116m away

  Fell a fir tree. It grows very tall but only on top half for quite few years now. This top half is pushing against the above walkway that people use to access the flats which has resulted in previous damage to the walkway. Due to physical health issues, this tree is also very hard for me to maintain

  Granted Trees

• 17A The Broadway Hatfield AL9 5HZ

  6/2026/0568/FULL Submitted 27 Mar 2026 117m away

  Installation of air conditioning condenser floor mounted to the rear of the building

  Granted Full applications

• Flat 1 1-5 Park Street Hatfield AL9 5AT

  6/2023/1621/LB Submitted 4 Aug 2023 134m away

  Installation of partition in flat and waterproofing to basement (retrospective)

  Refused Heritage and listed buildings 1 doc

• Car Park Salisbury Square Hatfield AL9 5AD

  6/2024/1758/COND Submitted 12 Sep 2024 139m away

  Submission of details pursuant to condition number 10 (Samples of materials) on planning permission 6/2021/3422/MAJ

  Granted Conditions

• Car Park Salisbury Square Hatfield AL9 5AD

  6/2024/1505/COND Submitted 8 Aug 2024 139m away

  Submission of details pursuant of Condition 11 (Refuse & Recycling) 14 (EV Charging Facilities) 16 (Fire Hydrants) and 17 (Accessible and Adaptable Homes) on planning permission 6/2021/3422/MAJ

  Granted Conditions 1 doc

• 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
• 6/2026/1044/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
• 6/2026/1092/LAWP Granted

  37 Cecil Crescent Hatfield AL10 0HG

  Certificate of lawfulness for loft conversion

  24 Jun 2026 Lawful development