18 Birchwood Close Hatfield AL10 0PP

1. 12 Aug 2026

   Received by Welwyn Hatfield

2. 28 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 31 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 October 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.

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

• 52 Crawford Road Hatfield AL10 0PE

  6/2021/0776/HOUSE Submitted 10 Mar 2021 38m away

  Erection of a two storey rear extension, flanking existing single level extension, relocation of existing entrance door to new front porch, a new internal layout and addition on windows

  Granted Householder Extension Windows or glazing
  Small domestic

• 36 Birchwood Close Hatfield AL10 0PP

  6/2023/0318/PN8 Submitted 9 Feb 2023 95m away

  Prior approval for the erection of a single storey rear extension measuring 5m in depth, 2.56m in height, 2.30m to the eaves with rooflights and alterations to existing openings to side elevation, following demolition of existing conservatory and outbuildings

  Granted Prior approval Extension Loft or dormer +1
  Small domestic

• 20 Crawford Road Hatfield Hertfordshire AL10 0PG

  6/2022/2682/LAWP Submitted 24 Nov 2022 99m away

  Certificate of lawfulness for loft conversion with hip to gable to include rear dormer with juliet balcony, two front rooflights and one first floor side elevation window.

  Granted Lawful development Loft or dormer Windows or glazing

• 18 Crawford Road Hatfield AL10 0PG

  6/2019/2623/HOUSE Submitted 18 Oct 2019 105m away

  Erection of front porch and single storey rear extension following demolition of existing extension and garage with alterations to openings

  Granted Householder Extension Demolition 1 doc
  Small domestic

• 37 Crawford Road Hatfield AL10 0PF

  6/2024/1942/HOUSE Submitted 9 Oct 2024 106m away

  Erection of a single storey rear extension with roof lantern and part garage conversion which will be linked to the main dwelling

  Granted Householder Extension Windows or glazing
  Small domestic

• 37 Crawford Road Hatfield AL10 0PF

  6/2021/1901/HOUSE Submitted 22 Jun 2021 106m away

  Erection of a single storey rear extension with roof lantern and garage conversion including alterations to openings

  Granted Householder Extension Windows or glazing
  Small domestic

• 6/2026/1491/VAR Awaiting decision

  Land at Great North Road Stanborough Welwyn Garden City AL8 7TQ

  Variation of condition 28 (approved plans) on planning permission 6/2025/0764/FULL

  25 Aug 2026 Amendments
• 6/2026/1360/VAR Awaiting decision

  93 Salisbury Road Welwyn Garden City AL7 3RY

  Variation of condition 2 (approved plans) on planning permission 6/2025/2622/HOUSE

  3 Aug 2026 Amendments
• 6/2026/0659/VAR Granted

  38 The Ridgeway Cuffley Potters Bar EN6 4AX

  Variation of condition 3 (Arboricultural Method Statement and the Tree Protection Plan) and condition 18 (approved plans) on planning permission 6/2023/2115/FULL

  14 Apr 2026 Amendments
• 6/2026/0752/VAR Refused

  Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

  Variation of condition 3 (levels), 6 (hard and soft landscaping), 7 (materials), 9 (energy statement) and 16 (approved plans) on planning permission 6/2024/1554/FULL

  28 Apr 2026 Amendments
• 6/2026/0025/VAR Granted

  The North Star 82 Great North Road Welwyn AL6 0TA

  Variation of condition 15 (amendments to the approved scheme) on planning permission 6/2025/0781/FULL

  7 Jan 2026 Amendments