Planning Applications in AL9
Planning authority: Welwyn Hatfield Borough Council
See all 2,791 planning applications in the AL9 postcode district since 2016, 49 in the last 90 days. Search and filter them by date, status, development type or number of homes, see the latest on the map, or get a free alert for new applications.
Bedwell End School Lane Essendon Herts AL9 6HL
To fell a dangerous tree diagnosed with Sycamore Anthracnose leaning towards garage (TPO3 W4)
12-14 Bell Lane Brookmans Park AL9 7AY
Erection of one dwelling, with garage wing, external landscaping and associated works following demolition of existing dwelling and outbuildings
Colonial House 87 Great North Road AL9 5DA
Replacement bin store
18 Bell Lane Brookmans Park AL9 7AY
Alterations and raising the ridge height to create a crown roof with front and rear dormer windows
Lakeside Manor West End Lane Essendon Hatfield AL9 6AZ
Erection of a basement extension, fenestration alteration and wall and roof replacement
Sunnyside Essendon Hill Essendon Hatfield AL9 6AJ
Installation of front dormer and insertion of bi folding doors to rear
Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA
Erection of a small animals teaching hospital (Use Class F1), together with associated parking, landscaping, servicing, plant and associated works fol...
Bays 1-2 Travellers Lane Welham Green Hatfield AL9 7EX
Prior approval for the installation of 2051 solar panels to the roof of the building and associated electrical works
The Manor House Essendon Hill Essendon Hatfield AL9 6AJ
Fell Birch Tree (5 day notice)
17A The Broadway Hatfield AL9 5HZ
Erection of canopy
White Lodge Farm The Bellbrook Bulls Lane Hatfield AL9 7AZ
Erection of proposed stable block and alteration to existing access road for the use of land for keeping horses for personal leisure use.
39 Station Road Welham Green Hatfield AL9 7PF
Erection of first floor side extension and timber cladding and rendering to existing front elevation
20 Moffats Lane Brookmans Park AL9 7RU
Erection of garden room to rear elevation
19 Pine Grove Brookmans Park AL9 7BP
Erection of dwelling following the demolition of existing dwelling
Hatfield House Hatfield Park Great North Road Hatfield AL9 5NF
Roof repairs and ancillary works associated with the Grade I Listed Hatfield House
Horse And Groom 21 Park Street Hatfield AL9 5AT
1 x Ash to lift to 5m above ground level. Reduce lateral branches by 1.5m height & width
HMWT Gobions Wood Nature Reserve Off Mymms Drive Potters Bar AL9 7AF
Mature Ash tag 895 with multiple cavities and evidence of long term Inonotus hispidus decay with multiple fruiting bodies on stem and around the tree ...
Northfield Woodfield Lane Hatfield AL9 6JJ
TPO3 G62 T1 – Oak – height 20m – spread 16m – Living, but dying crown - Tree to be pollarded - the pollard framework new height will be approx. 18m
Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL
Submission of details pursuant to Condition 15 (Fire Hydrants) on planning permission 6/2024/2418/MAJ
73 Mymms Drive Brookmans Park AL9 7AA
Erection of dwelling following demolition of existing dwelling
28 Peplins Way Brookmans Park AL9 7UU
Erection of two-storey front and side extension, single-storey rear extension and a flat roof incorporating a glazed rooflight
3 Lysley Place Brookmans Park AL9 6NZ
Erection of front porch canopy
83 Brookmans Avenue Brookmans Park AL9 7QG
Submission of details pursuant to condition number 1 (Demolition and Construction Management Plan) on planning permission 6/2026/0138/FULL
28 Pleasant Rise Hatfield AL9 5DU
Certificate of lawfulness for construction of a new detached, single-storey garden room/summerhouse within an existing rear garden
1 Meadow Close Welham Green Hatfield AL9 7NZ
Enclosing existing amenity land with a 1.5m fence on 0.3m gravel boards
58 Bell Lane Brookmans Park AL9 7AY
Submission of details pursuant to condition number 5 (energy statement) on planning permission 6/2025/2133/FULL
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...
37-39 Bradmore Green Brookmans Park AL9 7QR
Remove old signage & replace with new
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
91 The Ryde Hatfield AL9 5DN
Variation of condition 2 (approved plans) on planning permission 6/2025/1670/HOUSE
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
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...
4 Brookmans Avenue Brookmans Park AL9 7QJ
Retention of single storey timber structure as gym and addition of storm porch
38 The Grove Brookmans Park AL9 7RN
Submission of details pursuant to Condition 2 (boundary treatments) on planning permission 6/2025/0285/HOUSE
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...
4 Brookmans Avenue Brookmans Park AL9 7QJ
Submission of details pursuant to Condition 4 (landscaping) on planning permission 6/2023/0622/FULL
Land North of 58 Bell Lane Brookmans Park AL9 7AY
Permission in principle for the erection of a single dwelling
7 Pleasant Rise Hatfield AL9 5DR
Erection of single storey rear garage extension
Thunderbridge Farm Bulls Lane Hatfield AL9 7BB
Erection of an agricultural building.
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 ...
Wytmead Essendon Hill Essendon Hatfield AL9 6AW
Reinstatement of the previously truncated chimney
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.
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...
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
53 Brookmans Avenue Brookmans Park AL9 7QG
Erection of dwelling with boundary wall and gates following demolition of existing property
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)
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
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...
Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA
Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works
Get free email alerts for new planning applications in the AL9 area
Nearby areas
Nearby councils
Data updated daily. Source: Welwyn Hatfield Borough Council planning portal.