122 The Commons Welwyn Garden City AL7 4SB

1. 27 Jul 2026

   Received by Welwyn Hatfield

2. 9 Aug 2026

   Added to PlanIndex

3. 31 Aug 2026

   Status changed to Under Consideration

   Previously Under Consultation.

4. Decision

   Awaiting decision

   Decision expected by 21 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Welwyn Hatfield took a median of 58 days over the applications it decided in the last year.

This application is with Welwyn Hatfield for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 122 The Commons Welwyn Garden City AL7 4SB

  6/2026/0598/EM Submitted 7 Apr 2026 0m away

  Conversion of garage to use as a dining room, as well as a glazed veranda & gazebo

  Granted Windows or glazing

• 127 The Commons Welwyn Garden City AL7 4RZ

  6/2021/1415/EMT Submitted 5 May 2021 51m away

  Triple stemmed oak - reduce by 50%

  Granted Trees

• 127 The Commons Welwyn Garden City AL7 4RZ

  6/2021/1358/TPO Submitted 28 Apr 2021 51m away

  Triple stemmed oak. Reduce by 50% due to defects at the base of trunk and the presence of Ganoderma fungus. Recommended by Ashley Gray, NCHarb.

  Granted Trees

• 94 The Commons Welwyn Garden City AL7 4SB

  6/2021/1975/HOUSE Submitted 29 Jun 2021 58m away

  Erection of first floor rear extension with alterations to openings

  Granted Householder Extension
  Domestic

• 94 The Commons Welwyn Garden City AL7 4SB

  6/2021/1968/EM Submitted 29 Jun 2021 58m away

  Erection of first floor rear extension with alteration to openings

  Granted Extension

• 181 Howlands Welwyn Garden City AL7 4RL

  6/2021/1461/HOUSE Submitted 10 May 2021 58m away

  Erection of part two storey rear and single storey side extension

  Refused Householder Extension
  Small domestic

• 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