2 Sycamore Avenue Hatfield AL10 8LZ

1. 3 Jul 2026

   Received by Welwyn Hatfield

2. 6 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 15 Aug 2026

   Status changed to Under Consideration

   Previously Under Consultation.

5. 22 Aug 2026

   Status changed to Under Consultation

   Previously Under Consideration.

6. 25 Aug 2026

   Decision issued: Granted

Welwyn Hatfield granted permission on 25 August 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.

• 12 Sycamore Avenue Hatfield AL10 8LZ

  6/2024/2005/PN8 Submitted 18 Oct 2024 100 yards away

  Prior approval for the erection of a single storey rear extension measuring 5.9m in depth, 3m in height and 2.6m to the eaves

  Refused Prior approval Extension
  Small domestic

• 12 Sycamore Avenue AL10 8LZ

  6/2024/2271/PN8 Submitted 26 Nov 2024 100 yards away

  Prior approval for the erection of a single storey rear extension measuring 5.9m in depth, 2.9m in height and 2.5m to the eaves

  Granted Prior approval Extension
  Small domestic

• 12 Sycamore Avenue Hatfield AL10 8LZ

  6/2024/1548/HOUSE Submitted 14 Aug 2024 100 yards away

  Erection of part single, part two storey rear extension

  Refused Householder Extension
  Domestic

• 17 Sycamore Avenue Hatfield AL10 8LZ

  6/2026/1031/HOUSE Submitted 12 Jun 2026 100 yards away

  Erection of a part single storey, part two-storey rear extension, garage conversion, front porch extension, alterations to fenestration and external materials

  Withdrawn Householder Extension Windows or glazing
  Small domestic

• 48 Woods Avenue Hatfield AL10 8NA

  6/2023/0415/HOUSE Submitted 22 Feb 2023 100 yards away

  Erection of single storey, part two storey rear extension

  Refused Householder Extension
  Small domestic

• 18 Sycamore Avenue Hatfield Hertfordshire AL10 8LZ

  6/2022/2646/LAWP Submitted 21 Nov 2022 150 yards away

  Certificate of lawfulness for single storey side extension, replacement of porch roof, alterations to existing openings and insertion of one front roof light

  Granted Lawful development Extension Loft or dormer +1
  Small domestic

• 6/2026/1408/HOUSE Granted

  Wytmead Essendon Hill Essendon Hatfield AL9 6AW

  Reinstatement of the previously truncated chimney

  Received 10 Aug, published by the council 31 Aug 2026 Householder
• 6/2026/1170/HOUSE Granted

  6 Highfields Cuffley Potters Bar EN6 4EL

  Conversion of garage into study room with alterations to the front elevation, repositioning of lower ground floor entrance hall, erection of two storey infill side extension with internal alterations, replacement of existing front and side building brickwork with K-Render finish, removal of chimney and installation of 2 rooflights

  Received 6 Jul, published by the council 30 Jul 2026 Householder
• 6/2026/1177/HOUSE Granted

  Red Lodge High Road Essendon Hatfield AL9 6HU

  Erection of two single-storey side extensions, detached garage with barn-hipped roof and photovoltaic panels, relocated garden room and associated works to hardstanding and site layout.

  Received 7 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1376/HOUSE Granted

  18 Briary Wood Lane Welwyn AL6 0TF

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Received 4 Aug, published by the council 22 Aug 2026 Householder
• 6/2026/1392/HOUSE Granted

  1 Little Wade Welwyn Garden City AL7 4LE

  Erection of a single storey rear extension

  Received 6 Aug, published by the council 15 Aug 2026 Householder