315 Knightsfield Welwyn Garden City AL8 7NJ

1. 30 Apr 2021

   Received by Welwyn Hatfield

2. 14 May 2021

   Validated

   Checked as complete and ready for consideration.

3. 9 Jul 2021

   Decision issued: Refused

4. 9 Aug 2026

   Added to PlanIndex

This application is at appeal, which passes the decision from the council to the national planning inspectorate, or in Scotland usually to a local review body first. The appeal considers the scheme afresh against the same policies.

Anyone who commented on the original application is normally notified and can comment again within the appeal deadline. Appeal decisions take months rather than weeks, and the outcome replaces the council's decision.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 315 Knightsfield Welwyn Garden City AL8 7NJ

  6/2021/1522/EMH Submitted 12 May 2021 0m away

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

  Refused Householder
  Domestic

• 307 Knightsfield Welwyn Garden City AL8 7NJ

  6/2026/0917/HOUSE Submitted 22 May 2026 58m away

  Erection of a single storey rear extension and covered veranda area and alteration to fenestration.

  Granted Householder Extension Windows or glazing
  Small domestic

• 307 Knightsfield Welwyn Garden City AL8 7NJ

  6/2026/0836/EM Submitted 12 May 2026 58m 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

• Monks Walk School Knightsfield Welwyn Garden City AL8 7NL

  6/2026/0205/MAJ Submitted 5 Feb 2026 68m 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

• 312 Knightsfield Welwyn Garden City AL8 7NQ

  6/2021/0203/FULL Submitted 22 Jan 2021 69m 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

  6/2026/1454/COND Submitted 18 Aug 2026 72m away

  88% historically approved · decision due ~15 Oct

  Submission of details pursuant to Condition 4 (Drainage), 7 (Lighting, line marking and flooring), 9 (Construction Method Statement) and 10 (Landscaping) on planning permission 6/2026/0205/MAJ

  Awaiting decision Conditions

• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  13 Jul 2026 Householder
• 6/2026/1011/HOUSE Granted

  5 Brookside Crescent Cuffley Potters Bar EN6 4QW

  Erection of rear extension, single storey side extension, new porch, additions/alterations to windows on side elevation and demolition of garage

  9 Jun 2026 Householder
• 6/2026/0703/HOUSE Granted

  57 Great North Road Brookmans Park AL9 6LA

  Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

  20 Apr 2026 Householder
• 6/2026/0534/HOUSE Refused

  16 Chipmunk Chase Hatfield AL10 9GH

  Retention of single storey rear extension and garage conversion to study/office

  24 Mar 2026 Householder
• 6/2026/1175/HOUSE Granted

  5A Honeycroft Welwyn Garden City AL8 6HR

  Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

  7 Jul 2026 Householder