Planning authority
Welwyn Hatfield planning applications
3,788 public planning records in the production OGL dataset, newest first, linked to council source pages.
Applications
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Welwyn Hatfield/6/2026/0774/HOUSE
45 Dawley Welwyn Garden City AL7 1EA
Erection of single storey side extension
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Welwyn Hatfield/6/2026/0775/FULL
1-11, 13-23, 23-35 & 37-47 Grove Mead; 2-12, 14-24 Briars Wood & 2-12 & 22-32 Briars Lane Hatfield
Replacement of external wall insulation to match existing, replacement windows and doors, to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony s...
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Welwyn Hatfield/6/2026/0798/COND
University Of Hertfordshire College Lane Hatfield AL10 9AB
Submission of details pursuant to Condition 3 (Construction Method Statement), condition 4 (Surface Water Drainage) on planning permission 6/2025/1974/MAJ
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Welwyn Hatfield/6/2026/0896/EM
5 Maryland Hatfield AL10 8DY
Installation of hardstanding
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Welwyn Hatfield/6/2026/1129/COND
Holwell Hyde Cottage Holwell Hyde Lane Welwyn Garden City AL7 4AA
Submission of details pursuant to Condition 1 (Landscaping), Condition 2 (Materials) and Condition 3 (Energy Efficiency) on planning permission 6/2024/1841/FULL
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Welwyn Hatfield/6/2026/1130/TPO
Perrywood Walden Road Welwyn Garden City AL8 7PZ
G1 - 2 x Beech and 3 x Hornbeams all hanging low over the footpath and road. Crown lift to 4m. T2 - Hornbeam growing very close to the building and low over the drive. To reduce back on bui...
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Welwyn Hatfield/6/2026/1135/TC
22 Roundwood Drive Welwyn Garden City AL8 7JZ
1 x Spruce to reduce Southern branches (towards property) by approximately 1.2m from branch tips, full height of the tree Large mature tree with potential to grow larger. Excessively close...
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Welwyn Hatfield/6/2026/1138/EMT
22 Roundwood Drive Welwyn Garden City AL8 7JZ
1 x Spruce to reduce Southern branches (towards property) by approximately 1.2m from branch tips, full height of the tree Large mature tree with potential to grow larger. Excessively close...
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Welwyn Hatfield/6/2025/1610/FULL
Land To Rear of Mymms Drive Brookmans Park AL9 7AF
Erection of two stables following demolition of existing stables
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Welwyn Hatfield/6/2026/0126/MAJ
Land to the north east of King George V Playing Fields Northaw Road East Hertfordshire EN6 4RD
Erection of 16 new dwellings with associated access, car parking and landscaping
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Welwyn Hatfield/6/2026/0197/LAWP
The Firs Park Woodside Lane Hatfield AL9 6DG
Certificate of lawfulness for the use of land as a permanent residential caravan site without limitation
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Welwyn Hatfield/6/2026/0814/COND
University Of Hertfordshire College Lane Hatfield AL10 9AB
Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), 2 (HMMP) and 9 (Landscaping) on planning permission 6/2025/1974/MAJ
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Welwyn Hatfield/6/2026/0874/HOUSE
45 Osborne Road Little Heath Potters Bar EN6 1SB
Erection of brick wall, iron railings and iron electric sliding gates to the front of the property and landscaping works
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Welwyn Hatfield/6/2026/1017/FULL
The Brookmans Park Estate Brookmans Park Hertfordshire
Hardstanding and highway access upgrade
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Welwyn Hatfield/6/2026/1044/LAWP
5 Peartree Court Welwyn Garden City AL7 3XN
Certificate of lawfulness for the change of use from C3 (dwellinghouse) to C4 (HMO for up to 6 unrelated residents)
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Welwyn Hatfield/6/2026/1093/FULL
35 Carbone Hill Northaw Potters Bar EN6 4PN
Erection of 2 no. detached houses with integral garages
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Welwyn Hatfield/6/2026/1101/EM
48 Marsden Green Welwyn Garden City AL8 6YB
Installation of a single room split air conditioning unit for the property main living room
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Welwyn Hatfield/6/2026/1113/HOUSE
16 Birkin Court Welwyn Garden City AL7 3FA
Erection of a single storey rear extension
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Welwyn Hatfield/6/2026/1114/TC
30 Barleycroft Road Welwyn Garden City AL8 6JU
Cut back norway spruce back to the boundary that is growing over from number 28's garden
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Welwyn Hatfield/6/2026/1119/ADV
Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF
Proposed installation of signage
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Welwyn Hatfield/6/2026/1122/COND
Land adjacent to 42 Lemsford Village Lemsford Welwyn Garden City AL8 7TR
Submission of details pursuant of condition 5 (external materials) on planning permission 6/2025/1228/FULL
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Welwyn Hatfield/6/2026/1125/PN8
39 The Ridgeway Northaw EN6 4BD
Prior approval for the erection of a single storey rear extension measuring 8m in depth, 4m in height and 3m to the eaves
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Welwyn Hatfield/6/2026/0029/HOUSE
2 Sutherland Way Cuffley Potters Bar EN6 4EG
Erection of a part single storey and part two-storey rear extension with alterations to the roof, front elevation and internal layout
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Welwyn Hatfield/6/2026/0590/HOUSE
7 Barfolds Welham Green Hatfield AL9 7NG
Erection of two storey side extension and single storey front/side extension
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Welwyn Hatfield/6/2026/0667/EM
78 Valley Road Welwyn Garden City AL8 7DP
Detached, single-storey timber garden office in the rear garden, an EV charging point at the front of property and air source heat pump installation.
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Welwyn Hatfield/6/2026/0789/TC
7 Mannicotts Welwyn Garden City AL8 7BW
General Tree Maintenance and Management. T1 - Beech (Fagus Sycavatica) : Crown Reduction of 1.5metres. T2 - Silver Birch (Betula pendula) : Crown Reduction of up to 1.5metres back to previo...
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Welwyn Hatfield/6/2026/0903/COND
30 Barleycroft Road Welwyn Garden City AL8 6JU
Submission of details pursuant to Condition 3 (Landscaping Design) on planning permission 6/2024/1734/HOUSE
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Welwyn Hatfield/6/2026/1018/LAWP
Dickson House Clayton House Forum House Lemsford Road Hatfield AL10 0FE
Certificate of lawfulness to replace existing external cladding, cavity barriers and insulation to all facades with alternative non-combustible materials. Replace the existing timber deckin...
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Welwyn Hatfield/6/2026/1095/TPO
31 Parkside Welwyn AL6 9DQ
T1 Goat Willow Pollard back to previous trimming points which is approx 3-4m off T2 Cedar Crown reduction by 2-3m approx back to previous pruning points
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Welwyn Hatfield/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
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Welwyn Hatfield/6/2026/1108/TPO
16 Mardley Hill Welwyn AL6 0TN
T1 - 1 x Oak to reduce by approximately 2m height and width, ensuring to cut back clearing the house sufficiently. Oak reducing due to canopy in close proximity to property and roof. (Cover...
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Welwyn Hatfield/6/2026/1110/COND
12 Little Burrow Welwyn Garden City AL7 4SW
Submission of details pursuant to condition number 1 (landscaping) and 2 (drainage strategy) on planning permission 6/2025/1845/FULL
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Welwyn Hatfield/6/2026/0768/HOUSE
8 Dawley Welwyn Garden City AL7 1DZ
Erection of single storey side extension
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Welwyn Hatfield/6/2026/0782/HOUSE
11 Carleton Rise Welwyn AL6 9RP
Installation of a front portico
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Welwyn Hatfield/6/2026/0848/PN8
45 Garden Avenue Hatfield AL10 8LL
Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 3.25m in height and 3m to the eaves following the demolition of existing conservatory
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Welwyn Hatfield/6/2026/0897/EMT
3 Howicks Green Welwyn Garden City AL7 4RJ
T1 Ash, closest to the rear gate to fell and stump poison. No replant. T2 Ash, clear from overheads and structures (sheds) by 2m.
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Welwyn Hatfield/6/2026/1096/COND
118 Ludwick Way Welwyn Garden City AL7 3PY
Submission of details pursuant to Condition 1 (Construction Management Plan) on planning permission 6/2025/2579/HOUSE
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Welwyn Hatfield/6/2026/1099/HOUSE
10 Windsor Close Welwyn AL6 9JZ
Erection of a single storey front extension with alterations to fenestration following the demolition of existing front porch
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Welwyn Hatfield/6/2026/1102/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 9 (materials) on planning permission 6/2024/2418/MAJ
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Welwyn Hatfield/6/2026/1104/EM
31 Linkfield Welwyn Garden City AL7 4DN
Replacement of roof and frames to existing conservatory to the rear of the property
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Welwyn Hatfield/6/2026/0249/FULL
23 Cedar Road Hatfield AL10 8NZ
Change of use from dwellinghouse (Use Class C3) to a 4 bedroom House in Multiple Occupation (Use Class C4) and installation of a cycle rack
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Welwyn Hatfield/6/2026/0658/HOUSE
38 Butterwick Way Welwyn AL6 9GH
Proposed loft conversion with three side facing dormer windows, one further dormer for the stairs and three side facing roof slope skylights
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Welwyn Hatfield/6/2026/0721/HOUSE
4 The Chase Welwyn AL6 0QT
Reduction in height of the existing retaining boundary wall and alteration to and extending the garden boundary fencing.
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Welwyn Hatfield/6/2026/0756/HOUSE
43 Moorlands Welwyn Garden City AL7 4PY
Proposed single storey rear extension and a garage conversion
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Welwyn Hatfield/6/2026/1036/LAWE
25 Bluebells Welwyn AL6 0XD
Certificate of Lawfulness for the erection of a first floor external balcony to the rear of the house
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Welwyn Hatfield/6/2026/1092/LAWP
37 Cecil Crescent Hatfield AL10 0HG
Certificate of lawfulness for loft conversion
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Welwyn Hatfield/6/2026/0560/HOUSE
3 Heathlands Welwyn AL6 0UU
Erection of rear and side single-storey extension with conversion of garage to habitable accommodation
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Welwyn Hatfield/6/2026/0569/EM
10 Marley Road Welwyn Garden City AL7 4BS
Erection of two garden sheds in rear garden
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Welwyn Hatfield/6/2026/0744/EM
1 Old Forge Close Welwyn AL6 0SR
Proposed removal of redundant boiler chimney at rear of property
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Welwyn Hatfield/6/2026/0752/VAR
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
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Welwyn Hatfield/6/2026/0855/PN8
33 Roe Green Lane Hatfield AL10 0SH
Prior approval for the erection of a single storey ground floor rear extension measuring 8m in depth, 2.92m in height and 2.81m to the eaves
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Welwyn Hatfield/6/2026/1029/LAWP
Sunnyside Essendon Hill Essendon Hatfield AL9 6AJ
Certificate of lawfulness for proposed outbuilding
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Welwyn Hatfield/6/2026/1085/EMT
20 Turmore Dale Welwyn Garden City AL8 6HS
Fell 1 dead Rowan tree
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Welwyn Hatfield/6/2026/1087/HOUSE
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.C.
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Welwyn Hatfield/6/2026/1088/LB
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 shed and an attached W.C.
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Welwyn Hatfield/6/2026/0495/EM
27 Blakemere Road Welwyn Garden City AL8 7PQ
Erection of a single storey rear extension
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Welwyn Hatfield/6/2026/0528/TC
Access Road North Off Great Dell to Great Dell Scout Hall Welwyn Garden City AL8 7HY
T4 Hawthorn to reduce by 4m. T5 & T6 Ash to fell. T7 Ash to fell. T8 Goat willow to remove hung up branches.
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Welwyn Hatfield/6/2026/0579/EM
35 Sandpit Road Welwyn Garden City AL7 3TW
Proposed loft conversion
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Welwyn Hatfield/6/2026/0697/TPO
The Coach House 60 Mill Lane Welwyn AL6 9ES
TPO76 T1 - 1 x Horse chestnut (side of house) to reduce branches back from house by approximately 2.5m - tree side of house - to reduce branches back from house by 2.5m from branch tips as...
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Welwyn Hatfield/6/2026/0738/HOUSE
21 Lemsford Village Lemsford Welwyn Garden City AL8 7TN
Erection of two storey side extension following the demolition of previous single storey side extension