Planning Applications in AL9

Planning authority: Welwyn Hatfield Borough Council

Search current and historic planning applications in the AL9 postcode district in Welwyn Hatfield - 60 in the last 90 days. Filter applications by date, status, development type, or number of homes, view them on the map, or create a free alert for new applications.

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Showing 50 of 60 applications
6/2026/0463/FULL 25 Jul 2026 Pending

Land West of Woolmer’s Park The Hay Barn (Howell Court Farm) Essendon AL9 5RL

Demolition of existing agricultural barn and erection of a replacement self-build dwellinghouse with associated access, parking, landscaping, installa...

Welwyn Hatfield 25 Jul 2026
6/2026/0734/COND 25 Jul 2026 Approved

Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL

Submission of details pursuant to Condition 3 (Contamination through Surface Water Drainage), condition 5 (Surface Water Drainage Network) on planning...

Welwyn Hatfield 25 Jul 2026
6/2026/0737/COND 25 Jul 2026 Approved

55 Peplins Way Brookmans Park AL9 7UR

Submission of details pursuant to Condition 1 (the Biodiversity Gain Plan) on planning permission 6/2025/2564/FULL

Welwyn Hatfield 25 Jul 2026
6/2026/1262/COND 17 Jul 2026 Pending

26 Station Road Welham Green Hatfield AL9 7PG

Submission of details pursuant to Condition 21 (Biodiversity Enhancement Plan) on planning permission 6/2024/2418/MAJ

Welwyn Hatfield 17 Jul 2026
6/2026/1239/COND 15 Jul 2026 Pending

58 Bell Lane Brookmans Park AL9 7AY

Submission of details pursuant to condition number 2 (Construction Traffic Management Plan) on planning permission 6/2025/2133/FULL

Welwyn Hatfield 15 Jul 2026
6/2026/1201/TC 10 Jul 2026 Pending

Park Close Hatfield AL9 5AY

Reduce crowns of 2 Apple trees by approx 2m, crown thin, remove water shoots, and crown lift to achieve 2.5–3m clearance above ground level

Welwyn Hatfield 10 Jul 2026
6/2026/1206/COND 10 Jul 2026 Pending

26 Station Road Welham Green Hatfield AL9 7PG

Submission of details pursuant to condition 10 (Landscaping) on planning application 6/2024/2418/MAJ

Welwyn Hatfield 10 Jul 2026
6/2026/1207/FULL 10 Jul 2026 Pending

Lower Woodside Farm Lower Woodside Woodside Lane Hatfield AL9 6DH

Erection of two new general purpose agricultural buildings within existing farmyard

Welwyn Hatfield 10 Jul 2026
6/2026/1181/COND 7 Jul 2026 Pending

Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL

Submission of details pursuant to Condition 14 (Construction Phase Surface Water Management Plan) on planning permission 6/2024/2418/MAJ

Welwyn Hatfield 7 Jul 2026
6/2026/1161/TPO 3 Jul 2026 Approved

57 Peplins Way Brookmans Park AL9 7UR

5 DAY NOTICE: T1 Ash (///taped.excuse.inner) Removal of tree to ground level. (Covered by TPO 158 & 889 (2022))

Welwyn Hatfield 3 Jul 2026
6/2026/1150/HOUSE 1 Jul 2026 Pending

47 Puttocks Drive Welham Green Hatfield AL9 7LW

Erection of a single storey rear extension

Welwyn Hatfield 1 Jul 2026
6/2026/1120/FULL 29 Jun 2026 Pending

Land North of Dixons Hill Road Welham Green AL9 7EE

New access from Dixons Hill Road to Land North of Dixons Hill Road Welham Green

Welwyn Hatfield 29 Jun 2026
6/2026/1107/COND 26 Jun 2026 Pending

60 Brookmans Avenue Brookmans Park AL9 7QQ

Submission of details pursuant to condition number 2 (materials) on planning permission 6/2026/0105/HOUSE

Welwyn Hatfield 26 Jun 2026
6/2026/1102/COND 25 Jun 2026 Pending

Land south of Welham Manor and west of Station Road including 26 Station Road Welham Green AL9 7EL

Submission of details pursuant to Condition 9 (materials) on planning permission 6/2024/2418/MAJ

Welwyn Hatfield 25 Jun 2026
6/2026/1087/HOUSE 23 Jun 2026 Pending

47 Dixons Hill Close Welham Green Hatfield AL9 7EF

Erection of a single storey rear extension and a single storey side extension following the demolition of an existing detached shed and an attached W....

Welwyn Hatfield 23 Jun 2026
6/2026/1088/LB 23 Jun 2026 Pending

47 Dixons Hill Close Welham Green Hatfield AL9 7EF

Erection of a single storey rear extension, single storey side extension and internal alterations following the demolition of an existing detached she...

Welwyn Hatfield 23 Jun 2026
6/2026/1090/HOUSE 23 Jun 2026 Pending

1 The Terrace West End Lane Essendon Hatfield AL9 6AU

Erection of a single storey rear extension

Welwyn Hatfield 23 Jun 2026
6/2026/1073/COND 22 Jun 2026 Pending

60 Brookmans Avenue Brookmans Park AL9 7QQ

Submission of details pursuant to Condition 3 (hard and soft landscaping) on planning permission 6/2026/0105/HOUSE

Welwyn Hatfield 22 Jun 2026
6/2026/1068/COND 19 Jun 2026 Pending

Land between The Manor House and Whitehall Field Cottage Essendon Hill Essendon AL9 6AJ

Submission of details pursuant of condition 15 (additional plans) on planning permission 6/2021/3290/FULL varied by 6/2025/0435/VAR

Welwyn Hatfield 19 Jun 2026
6/2026/1052/FULL 17 Jun 2026 Pending

Unit 3 Woodside Lane Hatfield AL9 6DE

Retention of an extension to the existing building and the erection of a rear extension following demolition of existing buildings (part retrospective...

Welwyn Hatfield 17 Jun 2026
6/2026/1045/LAWP 16 Jun 2026 Approved

6 The Gardens Brookmans Park AL9 7UL

Certificate of lawfulness for the conversion of garage, elevational changes to front and rear elevations and new roof lights

Welwyn Hatfield 16 Jun 2026
6/2026/1027/ADV 11 Jun 2026 Pending

Stellantis & You Hatfield 1 Great North Road Hatfield AL9 5JA

Alterations to external elevations including painting of existing cladding & shopfronts, installation of new signage and alterations to vehicle parkin...

Welwyn Hatfield 11 Jun 2026
6/2026/1028/FULL 11 Jun 2026 Pending

Stellantis &You Hatfield 1 Great North Road Hatfield AL9 5JA

Alterations to external elevations including painting of existing cladding & shopfronts, installation of new signage and alterations to vehicle parkin...

Welwyn Hatfield 11 Jun 2026
6/2026/1029/LAWP 11 Jun 2026 Pending

Sunnyside Essendon Hill Essendon Hatfield AL9 6AJ

Certificate of lawfulness for proposed outbuilding

Welwyn Hatfield 11 Jun 2026
6/2026/1030/FULL 11 Jun 2026 Pending

Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

Proposed new manège with associated lighting, fencing, landscaping, and associated works

Welwyn Hatfield 11 Jun 2026
6/2026/1019/COND 10 Jun 2026 Pending

60 Brookmans Avenue Brookmans Park AL9 7QQ

Submission of details pursuant to condition number 1 (Arboricultural Impact Statement, Arboricultural Method Statement and Tree Protection Plan) and 4...

Welwyn Hatfield 10 Jun 2026
6/2026/1014/HOUSE 9 Jun 2026 Pending

13 Greenfield Hatfield AL9 5HW

Erection of two-storey front extension

Welwyn Hatfield 9 Jun 2026
6/2026/0992/FULL 5 Jun 2026 Pending

Water Tower Bell Lane Brookmans Park AL9 7AY

Proposed demolition of existing water tower

Welwyn Hatfield 5 Jun 2026
6/2026/0995/PN8 5 Jun 2026 Decided

2 Corner View Welham Green Hatfield AL9 7DH

Prior approval for a single storey rear extension measuring 4m in depth, 2.2m to the eaves and the maximum height of 3.6m

Welwyn Hatfield 5 Jun 2026
6/2026/0989/LAWP 4 Jun 2026 Pending

2 Parsonage Lane Welham Green Hatfield AL9 7LU

Certificate of lawfulness for the erection of a single storey rear extension

Welwyn Hatfield 4 Jun 2026
6/2026/0976/HOUSE 3 Jun 2026 Pending

Essendon Place London Lodge High Road Essendon Hatfield AL9 6HU

Erection of single storey outbuilding with accommodation within the roof following demolition of existing outbuilding

Welwyn Hatfield 3 Jun 2026
6/2026/0979/COND 3 Jun 2026 Pending

Marlborough Court Green Close Brookmans Park AL9 7ST

Submission of details pursuant to condition 1 (construction methodology) on planning permission 6/2025/0434/FULL

Welwyn Hatfield 3 Jun 2026
6/2026/0981/ADV 3 Jun 2026 Pending

Tesco Superstore Great North Road Hatfield AL9 5JY

Installation of one self service laundry kiosk to Tesco superstore curtilage

Welwyn Hatfield 3 Jun 2026
6/2026/0982/FULL 3 Jun 2026 Approved

Tesco Superstore Great North Road Hatfield AL9 5JY

Installation of one self service laundry kiosk to Tesco superstore curtilage

Welwyn Hatfield 3 Jun 2026
6/2026/0962/COND 2 Jun 2026 Pending

Glendee Boarding Kennels Dixons Hill Close Welham Green Hatfield AL9 7EN

Submission of details pursuant of condition 12 (drainage) on planning permission 6/2024/0628/FULL

Welwyn Hatfield 2 Jun 2026
6/2026/0965/TPO 2 Jun 2026 Approved

Essendon Place, Wyatt House High Road Essendon Hatfield AL9 6GZ

T1 Monkey puzzle to fell. Replacement monkey puzzle to be planted within the grounds. (covered by TPO 610 (2017) G1)

Welwyn Hatfield 2 Jun 2026
6/2026/0926/HOUSE 26 May 2026 Approved

The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

Extension of existing residential dwelling

Welwyn Hatfield 26 May 2026
6/2026/0915/FULL 22 May 2026 Pending

Holwell Court Farm Holwell Court Hatfield AL9 5RL

Refurbishment of the existing residential farmhouse and the change of use of the adjoining stables from storage (use class B8) to residential (use cla...

Welwyn Hatfield 22 May 2026
6/2026/0918/LAWP 22 May 2026 Approved

2 Corner View Welham Green Hatfield AL9 7DH

Certificate of lawfulness for the proposed erection of single storey rear extension

Welwyn Hatfield 22 May 2026
6/2026/0904/HOUSE 21 May 2026 Approved

7 Greenfield Hatfield AL9 5HW

Erection of a single storey rear extension, conversion of double integral garage, covered porch, replacement front dormer and erection of new boundary...

Welwyn Hatfield 21 May 2026
6/2026/0902/PIP 20 May 2026 Pending

Site Of Former Swan Stables Woodside Lane AL9 6DE

Residential development of five units

Welwyn Hatfield 20 May 2026
6/2026/0881/COND 19 May 2026 Approved

29 The Grove Brookmans Park AL9 7RL

Submission of details pursuant to condition number 1 (material samples) and 2 (approved plans) on planning permission 6/2025/2477/HOUSE

Welwyn Hatfield 19 May 2026
6/2026/0858/ADV 15 May 2026 Pending

Welham Green Service Station Dellsome Lane Welham Green Hatfield AL9 7NF

Installation of six signs

Welwyn Hatfield 15 May 2026
6/2026/0862/HOUSE 15 May 2026 Approved

3 Brookmans Avenue Brookmans Park AL9 7QH

Erection of single storey rear extension

Welwyn Hatfield 15 May 2026
6/2026/0864/HOUSE 15 May 2026 Approved

15 Bradmore Way Brookmans Park AL9 7QY

Erection of two storey side and rear extension (resubmission of lapsed consent 6/2022/1846/HOUSE)

Welwyn Hatfield 15 May 2026
6/2026/0852/PN24 14 May 2026 Approved

Tesco Stores Ltd Great North Road Hatfield AL9 5JY

Prior approval for a Solar PV installation to reduce electrical consumption and therefore carbon emissions at the commercial property

Welwyn Hatfield 14 May 2026
6/2026/0826/HOUSE 12 May 2026 Approved

28 The Grove Brookmans Park AL9 7RN

Part conversion of garage to form utility room with two rooflights within the roof

Welwyn Hatfield 12 May 2026
6/2026/0828/HOUSE 12 May 2026 Approved

4 Bulls Lane Hatfield AL9 7PD

Erection of a two storey side extension, single storey front extension and single storey rear extension following the demolition of the existing garag...

Welwyn Hatfield 12 May 2026
6/2026/0830/HOUSE 12 May 2026 Pending

14 Holloways Lane Welham Green Hatfield AL9 7NP

Erection of single storey front, side and rear extensions

Welwyn Hatfield 12 May 2026
6/2026/0835/COND 12 May 2026 Approved

26 Station Road Welham Green Hatfield AL9 7PG

Submission of details pursuant to Condition 12 (Cycle Storage) on planning permission 6/2024/2418/MAJ

Welwyn Hatfield 12 May 2026
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Data updated daily. Source: Welwyn Hatfield Borough Council planning portal.