23 Stag Green Avenue Hatfield AL9 5EB

This site has had 2 applications since 2022: 2 approved, 0 refused.

• 6/2022/2819/HOUSE Granted

  23 Stag Green Avenue Hatfield AL9 5EB

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

  Decided 15 Mar 2023 Householder

1. 23 Nov 2022

   Received by Welwyn Hatfield

2. 7 Dec 2022

   Validated

   Checked as complete and ready for consideration.

3. 15 Mar 2023

   Decision issued: Granted

4. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 15 March 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.

• 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

• 29 Stag Green Avenue Hatfield AL9 5EB

  6/2023/0359/LAWP Submitted 16 Feb 2023 50 yards away

  Certificate of Lawful Development for a proposed first floor dormer extension with juliet balcony

  Granted Lawful development Extension Loft or dormer

• 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

• 13 Stag Green Avenue Hatfield AL9 5EB

  6/2021/0331/FULL Submitted 3 Feb 2021 100 yards away

  Change of use of land from amenity to residential and the erecton of a picket fence at the boundary no higher than 40 cm.

  Granted Full applications
  Small domestic

• 16 The Ryde Hatfield AL9 5DH

  6/2021/0220/HOUSE Submitted 25 Jan 2021 100 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

• 1 Pleasant Rise Hatfield Hertfordshire AL9 5DR

  6/2023/0482/HOUSE Submitted 2 Mar 2023 150 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

• 6/2026/1370/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

  Received 3 Aug, published by the council 15 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

  Received 13 Jul, published by the council 9 Aug 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

  Received 16 Jul, published by the council 9 Aug 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

  Received 10 Jul, published by the council 9 Aug 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

  Received 27 Apr, published by the council 24 Jul 2026 Lawful development