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Planning application

57 Briars Lane Hatfield AL10 8EX

Granted Welwyn Hatfield 6/2026/1219/LAWP LAWFUL DEVELOPMENT - PROPOSED

Works: Loft or dormer

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of lawfulness for a proposed loft conversion with the installation of a rear dormer and four rooflights in the front elevation

As published by the council, reference 6/2026/1219/LAWP

Application record

Reference
6/2026/1219/LAWP
Type
LAWFUL DEVELOPMENT - PROPOSED
Status
Decided - Granted
Decision
Granted
Received
13 Jul 2026
Validated
13 Jul 2026
Decided
3 Sep 2026
Ward
Hatfield South West
Parish
Hatfield
Decision by
Delegated
Postcode
AL10 8EX

Site history

Applications at this address on the Welwyn Hatfield register

This site has had 5 applications since 2026: 3 approved, 1 refused.

  • 57 Briars Lane Hatfield AL10 8EX

    Certificate of lawfulness for proposed alterations to the existing carport and garden room

    Decided 10 Jul 2026 Lawful development
  • 57 Briars Lane Hatfield AL10 8EX

    Formation of four dormers to front and a rear dormer to facilitate loft conversion

    Decided 6 Jul 2026 Householder
  • 57 Briars Lane Hatfield AL10 8EX

    Erection of a single storey side extension

    Decided 8 Jul 2026 Householder
  • 6/2026/0819/LAWE Withdrawn

    57 Briars Lane Hatfield AL10 8EX

    Certificate of lawfulness for the retention of outbuilding/ carport in front garden and outbuilding in rear garden

    Decided 4 Jun 2026 Lawful development

Timeline

Dates from the published record

  1. 13 Jul 2026

    Received by Welwyn Hatfield

  2. 24 Jul 2026

    Added to PlanIndex

  3. 3 Sep 2026

    Decision issued: Granted

What this grant of permission means

Welwyn Hatfield granted permission on 3 September 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About lawful development applications

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.

Nearby applications

Within 500 metres

  • 57 Briars Lane Hatfield AL10 8EX

    6/2026/0987/LAWP Submitted 4 Jun 2026 0m away

    Certificate of lawfulness for proposed alterations to the existing carport and garden room

    Granted Lawful development
  • 57 Briars Lane Hatfield AL10 8EX

    6/2026/0819/LAWE Submitted 11 May 2026 0m away

    Certificate of lawfulness for the retention of outbuilding/ carport in front garden and outbuilding in rear garden

    Withdrawn Lawful development
  • 57 Briars Lane Hatfield AL10 8EX

    6/2026/0843/HOUSE Submitted 13 May 2026 0m away

    Formation of four dormers to front and a rear dormer to facilitate loft conversion

    Refused Householder Loft or dormer
    Domestic
  • 57 Briars Lane Hatfield AL10 8EX

    6/2026/0842/HOUSE Submitted 13 May 2026 0m away

    Erection of a single storey side extension

    Granted Householder Extension
    Small domestic
  • 71 Briars Lane Hatfield AL10 8EX

    6/2026/1336/HOUSE Submitted 30 Jul 2026 109m away

    84% historically approved · decision due ~28 Sep

    Erection of a single storey side extension

    Awaiting decision Householder Extension
    Small domestic
  • 12A Elm Drive Hatfield AL10 8NU

    6/2024/1144/HOUSE Submitted 19 Jun 2024 122m away

    Erection of chimney flue to side elevation

    Granted Householder
    Domestic

In Welwyn Hatfield

  • 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
  • 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
  • 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
  • 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
  • 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