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

This site has had 2 applications since 2026.

• 6/2026/1083/LAWE Awaiting decision

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

  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

  Submitted 23 Jun 2026 Lawful development

1. 23 Jun 2026

   Received by Welwyn Hatfield

2. 26 Jul 2026

   Added to PlanIndex

3. 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, against a statutory target of eight weeks. Over the last year Welwyn Hatfield decided lawful development applications in a median of 58 days. More in our guide to how long planning decisions take.

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.

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

  6/2026/1083/LAWE 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

  89% 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

• 6/2026/1370/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

  3 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

  13 Jul 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

  16 Jul 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

  10 Jul 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

  27 Apr 2026 Lawful development