45 Briars Wood Hatfield AL10 8DH

1. 15 Jul 2026

   Received by Welwyn Hatfield

2. 28 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 14 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 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, 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.

• 1-11, 13-23, 23-35 & 37-47 Grove Mead; 2-12, 14-24 Briars Wood & 2-12 & 22-32 Briars Lane Hatfield

  6/2026/0775/FULL Submitted 1 May 2026 27m away

  Replacement of external wall insulation to match existing, replacement windows and doors, to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony slab and new railings to match existing

  Granted Full applications Windows or glazing

• 28 Briars Wood Hatfield AL10 8DG

  6/2023/0167/FULL Submitted 24 Jan 2023 42m away

  Change of use from amenity land to residential driveway and installation of hardstanding (retrospective)

  Granted Full applications

• 28 Briars Wood Hatfield AL10 8DG

  6/2024/1935/HOUSE Submitted 9 Oct 2024 42m away

  Erection of a two storey rear/side extension and single storey rear extension following the demolition of the existing conservatory

  Refused Householder Extension Demolition
  Small domestic

• Council owned flats: 26-36 Aldykes Hatfield AL10 8EF and 44-54 Feather Del, Hatfield AL10 8DD

  6/2026/1273/FULL Submitted 20 Jul 2026 61m away

  80% historically approved · decision due ~14 Sep

  Replacement windows and doors to double/triple glazed units and thermal doors with the addition of balcony insulation system to balcony slab and new railings (to match existing, installation of cavity wall insulation to all external walls

  Awaiting decision Full applications Windows or glazing 6 docs

• 31 Briars Wood Hatfield AL10 8DA

  6/2025/2020/FULL Submitted 19 Sep 2025 66m away

  Retrospective change of use from amenity land to residential driveway and retention of hardstanding

  Granted Full applications

• Council owned flats in Aldykes & Briars Wood 2-12, 14-24 Aldykes Hatfield & 38-48 & 50-60 Briars Wood Hatfield AL10 8EF

  6/2026/1272/FULL Submitted 20 Jul 2026 81m away

  80% historically approved · decision due ~14 Sep

  Installation of insulation to all of the external walls, replacement windows and doors to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony slab and new railings (to match existing) to be installed, replacement of existing cladding panels with non combustible fibre-cement plank, colour to match existing

  Awaiting decision Full applications Windows or glazing 8 docs

• 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