19 Cunningham Avenue Hatfield AL10 9LR

1. 30 Jun 2026

   Received by Welwyn Hatfield

2. 3 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. 22 Aug 2026

   Status changed to Under Consideration

   Previously Under Consultation.

5. 28 Aug 2026

   Decision issued: Refused

Welwyn Hatfield refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 2 Nimrod Drive Hatfield AL10 9LS

  6/2022/2222/HOUSE Submitted 26 Sep 2022 42m away

  Erection of a single-storey rear extension and garage conversion and rear extension

  Granted Householder Extension
  Small domestic

• 9 Flamingo Close Hatfield AL10 9LU

  6/2026/1210/LAWE Submitted 10 Jul 2026 47m away

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

  Refused Lawful development

• 16 Nimrod Drive Hatfield AL10 9LS

  6/2022/2774/LAWP Submitted 6 Dec 2022 76m away

  Certificate of lawfulness for the erection of a porch

  Granted Lawful development Extension
  Small domestic

• 16 Nimrod Drive Hatfield AL10 9LS

  6/2022/2773/HOUSE Submitted 6 Dec 2022 76m away

  Erection of two storey rear extension

  Granted Householder Extension
  Domestic

• 13 Flamingo Close Hatfield AL10 9LU

  6/2025/1850/FULL Submitted 29 Aug 2025 91m away

  Change of Use from Use Class C3 (dwellinghouse) to a sui generis HMO comprising 7 bedrooms with ensuites, 6 kitchenettes and 4 parking spaces with landscaping changes

  Granted Full applications
  Domestic

• 13 Flamingo Close Hatfield AL10 9LU

  6/2026/1079/COND Submitted 22 Jun 2026 91m away

  Submission of details pursuant to condition 1 (Landscaping) on planning permission 6/2025/1850/FULL

  Granted Conditions 1 doc

• 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