23 Stag Green Avenue Hatfield AL9 5EB

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

• 6/2022/2671/LAWP Granted

  23 Stag Green Avenue Hatfield AL9 5EB

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

  Decided 15 Mar 2023 Lawful development

1. 13 Dec 2022

   Received by Welwyn Hatfield

2. 15 Mar 2023

   Decision issued: Granted

3. 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 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

• 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

• 6/2026/1198/HOUSE Granted

  9 Mardley Hill Welwyn AL6 0UE

  Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch

  Received 10 Jul, published by the council 24 Jul 2026 Householder
• 6/2026/1257/HOUSE Granted

  21 The Swallows Welwyn Garden City AL7 1BX

  Garage conversion with alterations to openings to front and rear elevations

  Received 17 Jul, published by the council 1 Aug 2026 Householder
• 6/2026/1293/HOUSE Granted

  33 Claves Crescent Welwyn Garden City AL7 1WN

  Erection of a single storey rear conservatory

  Received 22 Jul, published by the council 1 Aug 2026 Householder
• 6/2026/1202/HOUSE Granted

  40 Cecil Crescent Hatfield AL10 0HG

  Erection of single storey rear extension

  Received 10 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  Received 13 Jul, published by the council 9 Aug 2026 Householder