Planning Applications in AL9

Planning authority: Welwyn Hatfield Borough Council

Search current and historic planning applications in the AL9 postcode district in Welwyn Hatfield - 59 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 59 applications
7 Sept 2026 Under Consideration 6/2026/1555/COND

58 Bell Lane Brookmans Park AL9 7AY

Submission of details pursuant to condition number 5 (energy statement) on planning permission 6/2025/2133/FULL

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
3 Sept 2026 Under Consultation 6/2026/1538/TPO

Chine House Wild Hill Hatfield AL9 6EB

Ground works and associated root pruning/ severance of T3 (Oak) and other trees not advised to be the subject of a TPO to facilitate installation of a...

WORKS TO TREES WITH TREE PRESERVATION ORDER Welwyn Hatfield
2 Sept 2026 Under Consultation 6/2026/1533/ADV

37-39 Bradmore Green Brookmans Park AL9 7QR

Remove old signage & replace with new

ADVERT CONSENT Welwyn Hatfield
26 Aug 2026 Under Consultation 6/2026/1502/HOUSE

143 The Ryde Hatfield AL9 5DP

Erection of single storey rear extension with raising of roof to existing extension, and alterations to openings to rear and side elevations

HOUSEHOLDER APPLICATION Welwyn Hatfield
26 Aug 2026 Under Consultation 6/2026/1022/VAR

91 The Ryde Hatfield AL9 5DN

Variation of condition 2 (approved plans) on planning permission 6/2025/1670/HOUSE

VARIATION OF CONDITION Welwyn Hatfield
26 Aug 2026 Pending 6/2026/1503/LAWE

27 Batterdale Hatfield AL9 5JG

Certificate of lawfulness for the existing like-for-like replacement of damaged and aged windows on the front and rear elevations

LAWFUL DEVELOPMENT - EXISTING Welwyn Hatfield
24 Aug 2026 Pending 6/2026/1478/COND

27 The Grove Brookmans Park AL9 7RL

Submission of details pursuant to Condition 1 (details of external render) and Condition 2 (details of windows and doors) on planning permission 6/202...

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
21 Aug 2026 Under Consultation 6/2026/1477/HOUSE

4 Brookmans Avenue Brookmans Park AL9 7QJ

Retention of single storey timber structure as gym and addition of storm porch

HOUSEHOLDER APPLICATION Welwyn Hatfield
21 Aug 2026 Pending 6/2026/1473/COND

38 The Grove Brookmans Park AL9 7RN

Submission of details pursuant to Condition 2 (boundary treatments) on planning permission 6/2025/0285/HOUSE

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
20 Aug 2026 Refused 6/2026/0570/FULL

Thunderbridge Yard Bulls Lane Hatfield AL9 7BB

Change of use of land to enable the formation of 4 Gypsy/Traveller pitches (comprising the stationing of 1 static caravan and storage of 1 touring car...

FULL PERMISSION Welwyn Hatfield
18 Aug 2026 Under Consultation 6/2026/1449/COND

4 Brookmans Avenue Brookmans Park AL9 7QJ

Submission of details pursuant to Condition 4 (landscaping) on planning permission 6/2023/0622/FULL

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
18 Aug 2026 Pending 6/2026/1448/PIP

Land North of 58 Bell Lane Brookmans Park AL9 7AY

Permission in principle for the erection of a single dwelling

PERMISSION IN PRINCIPLE Welwyn Hatfield
13 Aug 2026 Pending 6/2026/1428/HOUSE

7 Pleasant Rise Hatfield AL9 5DR

Erection of single storey rear garage extension

HOUSEHOLDER APPLICATION Welwyn Hatfield
12 Aug 2026 Under Consultation 6/2026/1421/FULL

Thunderbridge Farm Bulls Lane Hatfield AL9 7BB

Erection of an agricultural building.

FULL PERMISSION Welwyn Hatfield
12 Aug 2026 Pending 6/2026/1417/HOUSE

15 Ramsey Close Brookmans Park AL9 6NP

Erection of single storey side and first floor rear extensions, front porch extension, door and fenestration alterations to rear elevation, new front ...

HOUSEHOLDER APPLICATION Welwyn Hatfield
11 Aug 2026 Pending 6/2026/1408/HOUSE

Wytmead Essendon Hill Essendon Hatfield AL9 6AW

Reinstatement of the previously truncated chimney

HOUSEHOLDER APPLICATION Welwyn Hatfield
11 Aug 2026 Pending 6/2026/1407/FULL

11 Georges Wood Road Brookmans Park AL9 7BY

Erection of new dwelling and associated hard and soft landscaping following demolition of the existing dwelling and the detached garage.

FULL PERMISSION Welwyn Hatfield
11 Aug 2026 Pending 6/2026/1406/COND

Bothys Field Holwell Court Farm

Submission of details pursuant to condition 1 (Biodiversity Net Gain Plan) and condition 2 (Landscape and Ecology Management Plan) on planning applica...

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
7 Aug 2026 Pending 6/2026/1402/COND

Wytmead Essendon Hill Essendon Hatfield AL9 6AW

Submission of details pursuant to Condition 1 (samples of the roof tiles) and condition 3 (rooflights) on listed building consent 6/2026/0690/LB

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
7 Aug 2026 Pending 6/2026/1264/FULL

53 Brookmans Avenue Brookmans Park AL9 7QG

Erection of dwelling with boundary wall and gates following demolition of existing property

FULL PERMISSION Welwyn Hatfield
6 Aug 2026 Pending 6/2026/1347/TPO

53 Pine Grove Brookmans Park AL9 7BL

T1 Horse Chestnut 1m full crown reduction T2 Hornbeam 2m full crown reduction (covered by TPO468, TPO1054 (2023) &TPO981)

WORKS TO TREES WITH TREE PRESERVATION ORDER Welwyn Hatfield
5 Aug 2026 Approved 6/2026/1263/COND

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

Submission of details pursuant to Condition 24 (External Lighting) on planning permission 6/2024/2418/MAJ

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
3 Aug 2026 Refused 6/2026/1335/PN8

31 Kentish Lane Brookmans Park AL9 6NG

Prior approval for 2x single storey rear extensions and 1x single storey side/rear extension measuring 8m in depth, 2.85m to the eaves and the maximum...

Class A – enlargement, improvement or other alteration of a dwellinghouse - PRIOR APPROVAL Welwyn Hatfield
3 Aug 2026 Under Consideration 6/2026/1337/FULL

Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works

FULL PERMISSION Welwyn Hatfield
29 Jul 2026 Under Consultation 6/2026/1317/COND

58 Bell Lane Brookmans Park AL9 7AY

Submission of details pursuant to Condition 3 (materials), 4 (refuse and recycling) & 6 (landscaping) on planning permission 6/2025/2133/FULL

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
28 Jul 2026 Under Consultation 6/2026/1203/HOUSE

6 Huggins Lane Welham Green Hatfield AL9 7LR

Erection of a two storey side extension.

HOUSEHOLDER APPLICATION Welwyn Hatfield
28 Jul 2026 Under Consideration 6/2026/1318/COND

58 Bell Lane Brookmans Park AL9 7AY

Submission of details pursuant of condition 1 (biodiversity gain plan) on planning permission 6/2025/2133/FULL

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
28 Jul 2026 Refused 6/2026/1251/MAJ

Mansion House North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

Change of use to wedding venue, conference, ceremonies, corporate events and filming (Retrospective)

MAJOR DEVELOPMENT Welwyn Hatfield
28 Jul 2026 Under Consultation 6/2026/1169/LB

1-13 Holwell Court Hatfield AL9 5RL

Installation of full fibre network to the building

LISTED BUILDING Welwyn Hatfield
28 Jul 2026 Under Consultation 6/2026/1059/FULL

Brookmans Park Teleport Great North Road Brookmans Park AL9 6NE

Change of use the former satellite array yard to open storage, demolition of all associated redundant buildings and structure, the associated changes ...

FULL PERMISSION Welwyn Hatfield
27 Jul 2026 Under Consideration 6/2026/1309/HOUSE

61 Peplins Way Brookmans Park AL9 7UR

Erection of single storey front extension, two storey side extension, part single and part two storey rear extension, hip to gable roof extension with...

HOUSEHOLDER APPLICATION Welwyn Hatfield
27 Jul 2026 Under Consideration 6/2026/1297/LAWE

White Lodge Farm The Bellbrook Bulls Lane Hatfield AL9 7AZ

Certificate of lawfulness in relation to existing gate and fencing

LAWFUL DEVELOPMENT - EXISTING Welwyn Hatfield
27 Jul 2026 Under Consultation 6/2026/0976/HOUSE

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

HOUSEHOLDER APPLICATION Welwyn Hatfield
21 Jul 2026 Under Consideration 6/2026/1207/FULL

Lower Woodside Farm Lower Woodside Woodside Lane Hatfield AL9 6DH

Erection of two new general purpose agricultural buildings within existing farmyard

FULL PERMISSION Welwyn Hatfield
20 Jul 2026 Under Consideration 6/2026/1258/HOUSE

13 Lodge Drive Hatfield AL9 5HL

Erection of two-storey front, side and rear extensions and a a single storey rear extension following the demolition of the attached garage, conservat...

HOUSEHOLDER APPLICATION Welwyn Hatfield
20 Jul 2026 Under Consultation 6/2026/1262/COND

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

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
17 Jul 2026 Under Consultation 6/2026/1250/LAWP

40 Dellsome Lane Welham Green Hatfield AL9 7ND

Certificate of lawfulness for Class A - Larger single storey rear extension (previously subject to prior approval application ref: 6/25/1851/PN8), Cla...

LAWFUL DEVELOPMENT - PROPOSED Welwyn Hatfield
15 Jul 2026 Under Consideration 6/2026/1248/LAWE

North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

Certificate of lawfulness of existing use as a wedding venue, conference, ceremonies, corporate events and filming

LAWFUL DEVELOPMENT - EXISTING Welwyn Hatfield
15 Jul 2026 Approved 6/2026/1239/COND

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

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
13 Jul 2026 Under Consideration 6/2026/1192/COND

26 Huggins Lane Welham Green Hatfield AL9 7LE

Submission of details pursuant to condition number 1 (Construction Traffic Management Plan), condition 2 (Energy-efficient construction materials and ...

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
10 Jul 2026 Approved 6/2026/1201/TC

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.

TREES IN CONSERVATION AREA Welwyn Hatfield
10 Jul 2026 Under Consideration 6/2026/1206/COND

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

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

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
8 Jul 2026 Under Consultation 6/2026/0915/FULL

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...

FULL PERMISSION Welwyn Hatfield
7 Jul 2026 Under Consideration 6/2026/1177/HOUSE

Red Lodge High Road Essendon Hatfield AL9 6HU

Erection of single-storey side extension, detached garage with barn-hipped roof and photovoltaic panels, relocated garden room and associated works to...

HOUSEHOLDER APPLICATION Welwyn Hatfield
7 Jul 2026 Under Consultation 6/2026/1181/COND

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

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
3 Jul 2026 Approved 6/2026/1161/TPO

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))

WORKS TO TREES WITH TREE PRESERVATION ORDER Welwyn Hatfield
1 Jul 2026 Under Consultation 6/2026/1150/HOUSE

47 Puttocks Drive Welham Green Hatfield AL9 7LW

Erection of a single storey rear extension

HOUSEHOLDER APPLICATION Welwyn Hatfield
1 Jul 2026 Under Consideration 6/2026/0817/HOUSE

33 Bradmore Way Brookmans Park AL9 7QY

Extensions to the existing roof to form a crown roof, with rear dormer, insertion of rooflights and single storey side and rear extension

HOUSEHOLDER APPLICATION Welwyn Hatfield
29 Jun 2026 Refused 6/2026/1120/FULL

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

FULL PERMISSION Welwyn Hatfield
26 Jun 2026 Approved 6/2026/1107/COND

60 Brookmans Avenue Brookmans Park AL9 7QQ

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

APPROVAL OF DETAILS RESERVED BY CONDITION Welwyn Hatfield
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Data updated daily. Source: Welwyn Hatfield Borough Council planning portal.