Land adjacent The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

1. 23 Jun 2026

   Received by Welwyn Hatfield

2. 15 Aug 2026

   Added to PlanIndex

3. 7 Sep 2026

   Status changed to Under Consideration

   Previously Under Consultation.

4. Decision

   Awaiting decision

   Decision expected by 18 August 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

• Land adjacent The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

  6/2026/1083/LAWP Submitted 23 Jun 2026 0m away

  81% historically approved · decision due ~18 Aug

  Certificate of lawfulness to certify that the proposed works to carry on and complete the erection of a dwellinghouse approved by planning permission 6/2023/0677/FULL dated 23 June 2023, as amended by planning permission 6/2024/2237/VAR dated 7 April 2025, would be lawful

  Awaiting decision Lawful development
  Domestic

• Land adjacent to The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

  6/2026/0399/COND Submitted 4 Mar 2026 4m away

  Submission of details pursuant to condition number 1 (Construction Management Plan) on planning permission 6/2024/2237/VAR

  Granted Conditions

• Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

  6/2026/0752/VAR Submitted 28 Apr 2026 123m away

  Variation of condition 3 (levels), 6 (hard and soft landscaping), 7 (materials), 9 (energy statement) and 16 (approved plans) on planning permission 6/2024/1554/FULL

  Refused Amendments

• Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

  6/2026/0751/COND Submitted 28 Apr 2026 126m away

  88% historically approved · decision due ~23 Jun

  Submission of details pursuant to Condition 1 (Construction Management Plan), condition 2 (Construction Environment Management Plan), condition 3 (Full site survey showing the datum used to calibrate the site levels), condition 4 (Arboricultural Method Statement and Tree Protection Strategy and Plan), condition 5 (Crown Roof), condition 6 (Hard and Soft Landscape), condition 7 (Samples Materials), condition 8 (EV charging point) & condition 9 (Energy-efficient construction materials and processes) on planning permission 6/2025/2534/VAR

  Awaiting decision Conditions Trees

• Land Between 48 & 50 The Ridgeway Cuffley EN6 4BA

  6/2026/0664/COND Submitted 14 Apr 2026 156m away

  Submission of details pursuant to condition 5 (Landscaping Scheme), condition 9 (Renewable Energy) and condition 10 (Sustainable Urban Drainage) on planning permission 6/2022/1943/FULL

  Granted Conditions

• 19 Carbone Hill Northaw Potters Bar EN6 4PJ

  6/2021/2157/LAWP Submitted 16 Jul 2021 173m away

  Certificate of lawfulness for a single storey side extension, front porch extension and erection of outbuilding

  Refused Lawful development 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