307 Knightsfield Welwyn Garden City AL8 7NJ

This site has had 2 applications since 2026: 2 approved, 0 refused.

• 6/2026/0836/EM Granted

  307 Knightsfield Welwyn Garden City AL8 7NJ

  Erection of single storey rear extension with roof lanterns, covered verandah area, installation of roof lantern to existing side roof and replacement window to rear

  Decided 14 Jul 2026

1. 22 May 2026

   Received by Welwyn Hatfield

2. 17 Jul 2026

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 17 July 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.

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.

• 307 Knightsfield Welwyn Garden City AL8 7NJ

  6/2026/0836/EM Submitted 12 May 2026 0m away

  Erection of single storey rear extension with roof lanterns, covered verandah area, installation of roof lantern to existing side roof and replacement window to rear

  Granted Extension Windows or glazing
  Small domestic

• 310 Knightsfield Welwyn Garden City AL8 7NQ

  6/2024/1844/HOUSE Submitted 25 Sep 2024 57m away

  Erection of single storey front, side and rear extensions following the demolition of the existing conservatory, raise in garage roof height to facilitate its conversion to habitable space, and fenestration alterations

  Granted Householder Extension Demolition +1
  Small domestic

• 315 Knightsfield Welwyn Garden City AL8 7NJ

  6/2021/1522/EMH Submitted 12 May 2021 58m away

  Installation of solar panels on front elevation of roof to supply self-generated electricity for the household.

  Refused Householder
  Domestic

• 315 Knightsfield Welwyn Garden City AL8 7NJ

  6/2021/1389/HOUSE Submitted 30 Apr 2021 58m away

  Installation of solar panels to the front elevation of the property

  Refused Householder
  Domestic

• 312 Knightsfield Welwyn Garden City AL8 7NQ

  6/2021/0203/FULL Submitted 22 Jan 2021 67m away

  Change of use of land to the rear of the residential garden to extend the residential curtilage and enclose with a 6ft fence.

  Refused Full applications
  Small domestic

• Monks Walk School Knightsfield Welwyn Garden City AL8 7NL

  6/2026/0205/MAJ Submitted 5 Feb 2026 98m away

  Erection of indoor sports hall, provision of external sports field viewing bank, and associated ground works, and hard and soft landscaping

  Granted Full applications 5 docs
  Major scheme

• 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