29 Stag Green Avenue Hatfield AL9 5EB

1. 16 Feb 2023

   Received by Welwyn Hatfield

2. 18 Apr 2023

   Decision issued: Granted

3. 22 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 18 April 2023, 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.

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.

• 29 Stag Green Avenue Hatfield Hertfordshire AL9 5EB

  6/2023/0358/HOUSE Submitted 15 Feb 2023 50 yards away

  Erection of rear infill extension with alterations to openings, first floor rear extension with insertion of rooflight to existing roof and front infill kitchen extension, under existing canopy

  Granted Householder Extension Loft or dormer
  Domestic

• 23 Stag Green Avenue Hatfield AL9 5EB

  6/2022/2819/HOUSE Submitted 13 Dec 2022 50 yards away

  Erection of first floor rear extension and front porch/canopy infill extension with tiled pitched roof to front canopy

  Granted Householder Extension
  Small domestic

• 23 Stag Green Avenue Hatfield AL9 5EB

  6/2022/2671/LAWP Submitted 23 Nov 2022 50 yards away

  Certificate of lawfulness for the erection of a single storey side extension

  Granted Lawful development Extension
  Small domestic

• 16 The Ryde Hatfield AL9 5DH

  6/2021/0220/HOUSE Submitted 25 Jan 2021 50 yards away

  Renovation of existing detached house, to include single storey extension of the entrance porch, removal of existing boiler house to rear extension, alterations to existing openings to front and rear elevations, and installation of new render and horizontal cladding to all elevations.

  Granted Householder New dwelling Extension 2 docs
  Small domestic

• 4 Fawn Court Hatfield AL9 5DJ

  6/2021/2538/LAWP Submitted 31 Aug 2021 100 yards away

  Certificate of lawfulness for the removal of existing chimney, door and erection of new bi-folding doors

  Granted Lawful development Windows or glazing

• 1 Pleasant Rise Hatfield Hertfordshire AL9 5DR

  6/2023/0482/HOUSE Submitted 2 Mar 2023 100 yards away

  Erection of a single storey side extension following demolition of existing porch, single storey side extension with insertion of rooflights, following part garage conversion plus addition of 2 x sun pipes to existing pitched roof

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 6/2026/1287/LAWE Refused

  Woodhurst Farm, Stables Cattlegate Road Northaw Potters Bar EN2 8AU

  Certificate of Lawfulness for existing use of a former agricultural building (Barn) as a self- contained single residential dwelling house (Use Class C3) following its conversion and continuous occupation for a period in excess of 10 years prior to the date of this application

  Received 22 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1306/LAWP Granted

  184 Unit 4 St Albans Road West Hatfield AL10 0TF

  Certificate of lawfulness for the change of use of the front office portion of Unit 4 to a daycare/crèche facility, to include an internal mezzanine, within Use Class E.

  Received 27 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1328/LAWP Granted

  41 Great North Road Welwyn Garden City AL8 7TJ

  Certificate of lawfulness for a proposed hip to gable loft conversion with rear facing dormer and single storey side extension, plus insertion of rooflight to front elevation

  Received 29 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1288/LAWE Granted

  1 The Limberlost Welwyn AL6 9TS

  Certificate of existing lawfulness for a single storey extension

  Received 22 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1297/LAWE Granted

  White Lodge Farm The Bellbrook Bulls Lane Hatfield AL9 7AZ

  Certificate of lawfulness in relation to existing gate and fencing

  Received 23 Jul, published by the council 9 Aug 2026 Lawful development