Search Welwyn Hatfield Borough Council planning applications

Search current and historic planning applications published by Welwyn Hatfield Borough Council - 446 applications in the last 90 days across 17 towns and areas and 9 postcode districts. Filter applications by date, status, development type, or number of homes, view them on the map, or create a free alert for new applications. In the year to March 2026, Welwyn Hatfield Borough Council decided 633 planning applications and approved 86%; 53% of householder decisions were made within eight weeks.

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Showing 50 of 446 applications
6/2026/0621/FULL 25 Jul 2026 Refused

45 Great Dell Welwyn Garden City AL8 7HP

Change of use of amenity land to driveway area with part hedge removal, part two storey rear extension, roof lantern to existing kitchen roof and alte...

Welwyn Hatfield 25 Jul 2026
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
6/2026/0656/FULL 25 Jul 2026 Withdrawn

De Havilland Campus Hertfordshire Sports Village Mosquito Way Hatfield AL10 9EU

Conversion of existing tennis courts to 4 uncovered padel courts with erection of ancillary container

Welwyn Hatfield 25 Jul 2026
6/2026/0495/EM 25 Jul 2026 Approved

27 Blakemere Road Welwyn Garden City AL8 7PQ

Erection of a single storey rear extension

Welwyn Hatfield 25 Jul 2026
6/2026/0681/EM 25 Jul 2026 Approved

10 West Mead Welwyn Garden City AL7 4SA

Erection of single storey rear extension, raising of roof to existing side extension and canopy area with polycarbonate sheeting roof

Welwyn Hatfield 25 Jul 2026
6/2026/0717/COND 25 Jul 2026 Pending

73 Bridge Road East Welwyn Garden City AL7 1UT

Submission of details pursuant to Condition 16 (Hard & Soft Landscape Works), condition 18 (External lighting schemes) on planning permission 6/2020/2...

Welwyn Hatfield 25 Jul 2026
6/2026/0654/HOUSE 25 Jul 2026 Refused

2 Hill Rise Cuffley Potters Bar EN6 4EE

Erection of a detached carport with store

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
6/2026/0629/EM 25 Jul 2026 Approved

8 Moorside Welwyn Garden City AL7 4QH

Alterations to the existing rear part of the dwelling, including replacement of the existing sloping roof with a flat roof, and replacement of existin...

Welwyn Hatfield 25 Jul 2026
6/2026/0389/EM 25 Jul 2026 Approved

29 Beehive Lane Welwyn Garden City AL7 4BJ

Proposed erection of a garden room in the rear garden

Welwyn Hatfield 25 Jul 2026
6/2026/0716/EM 25 Jul 2026 Approved

15 Guessens Road Welwyn Garden City AL8 6QL

Erection of two storey rear extension, single storey side and rear extensions following demolition of existing garage, insertion of rooflights and ins...

Welwyn Hatfield 25 Jul 2026
6/2026/0701/PN14 25 Jul 2026 Approved

6 South Mundells Welwyn Garden City AL7 1EP

Prior approval for demolition to remove the existing small industrial building and allow the site to be levelled and resurfaced in tarmac

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
6/2026/0718/PN8 25 Jul 2026 Decided

8 Lemsford Road Hatfield AL10 0DH

Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.07m in height and 2.46m to the eaves following the demoliti...

Welwyn Hatfield 25 Jul 2026
6/2026/0730/COND 25 Jul 2026 Approved

24 Fulling Mill Lane Welwyn AL6 9NS

Submission of details pursuant to Condition 1 (Construction Management Plan), condition 2 (Samples of the materials), condition 3 (Hard and soft lands...

Welwyn Hatfield 25 Jul 2026
6/2026/0732/EM 25 Jul 2026 Approved

3 Coneydale Welwyn Garden City AL8 7RX

Installation of solar panel on rear south-facing roof

Welwyn Hatfield 25 Jul 2026
6/2026/0722/HOUSE 25 Jul 2026 Approved

43 Appletree Way Welwyn Garden City AL7 2FE

Proposed loft conversion including formation of a rear dormer and front rooflights

Welwyn Hatfield 25 Jul 2026
6/2026/0733/FULL 25 Jul 2026 Pending

Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

Erection of two dwellings together with car parking and landscaping following the demolition of existing bungalow

Welwyn Hatfield 25 Jul 2026
6/2026/0744/EM 25 Jul 2026 Approved

1 Old Forge Close Welwyn AL6 0SR

Proposed removal of redundant boiler chimney at rear of property

Welwyn Hatfield 25 Jul 2026
6/2026/0693/LAWP 25 Jul 2026 Approved

14 Jasmine Gardens Hatfield AL10 0BQ

Certificate of lawfulness for the proposed installation of a new window into the first floor side elevation

Welwyn Hatfield 25 Jul 2026
6/2026/0736/TC 25 Jul 2026 Approved

24 Moorlands Welwyn Garden City AL7 4PP

Conifer - fell 6 trees on border of property due to excessive height to be replaced with alternative hedging. Fence also is present on boundary of pro...

Welwyn Hatfield 25 Jul 2026
6/2026/0725/HOUSE 25 Jul 2026 Approved

10 West Mead Welwyn Garden City AL7 4SA

Erection of a single storey rear extension, raising of roof to existing side extension and canopy area with polycarbonate sheeting roof

Welwyn Hatfield 25 Jul 2026
6/2026/0741/EMT 25 Jul 2026 Approved

24 Moorlands Welwyn Garden City AL7 4PP

Conifer - fell 6 trees on border of property due to excessive height, shading to garden, and stunting growth of other vegetation in the garden. To be ...

Welwyn Hatfield 25 Jul 2026
6/2026/0742/EM 25 Jul 2026 Approved

43 Brockswood Lane Welwyn Garden City AL8 7BE

Erection of garage/garden office following the demolition of the existing garage

Welwyn Hatfield 25 Jul 2026
6/2026/0728/HOUSE 25 Jul 2026 Pending

78 Valley Road Welwyn Garden City AL8 7DP

Erection of a part single, part two storey rear extension, garage conversion with removal of garage door and installation of rooflights

Welwyn Hatfield 25 Jul 2026
6/2026/0628/EM 25 Jul 2026 Approved

2 Handside Lane Welwyn Garden City AL8 6SF

Erection of single storey rear extension following demolition of conservatory, garage conversion with raising of roof and front extension, loft conver...

Welwyn Hatfield 25 Jul 2026
6/2026/0707/PIP 25 Jul 2026 Pending

Cuffley Hills Barn The Ridgeway Cuffley EN6 4AY

Permission in Principle application for the demolition of existing buildings and erection of four detached dwellings

Welwyn Hatfield 25 Jul 2026
6/2026/1096/COND 25 Jul 2026 Approved

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

Welwyn Hatfield 25 Jul 2026
6/2026/1280/TC 21 Jul 2026 Pending

110 Woodside House Bridge Road Welwyn Garden City AL8 6UL

T1- muti-stemmed Oak tree to lift by 4 metres and cut back by 2-3 metres for light and maintenance. T2-a row of 7 Beech trees to lift to 4 metres and ...

Welwyn Hatfield 21 Jul 2026
6/2026/1285/TPO 21 Jul 2026 Pending

24 Hill Rise Cuffley Potters Bar EN6 4EJ

Type of Tree : Multi-Stemed Hornbeam Number on Sketch Plan - G1 Reduction of tree size by circa 20% -25% Reason for request : Maintenance Location - w...

Welwyn Hatfield 21 Jul 2026
6/2026/1271/TPO 20 Jul 2026 Pending

33 Oaklands Rise Welwyn AL6 0RN

TPO 673 Removal of dead hornbeam tree

Welwyn Hatfield 20 Jul 2026
6/2026/1277/TC 20 Jul 2026 Pending

36 Blakemere Road Welwyn Garden City AL8 7PJ

Reduce 1 x Lime Tree by removing up to 3m of regrowth

Welwyn Hatfield 20 Jul 2026
6/2026/1278/HOUSE 20 Jul 2026 Pending

10 Dellcott Close Welwyn Garden City AL8 7BD

Erection of a part single, part double storey extension with replacement chimney following the demolition of existing part single, part double storey ...

Welwyn Hatfield 20 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
6/2026/1254/EMT 16 Jul 2026 Pending

94 Parkway, Welwyn Garden City, AL8 6HL

1 x Hornbeam to reduce by approximately 3m height and width.

Welwyn Hatfield 16 Jul 2026
6/2026/1256/TC 16 Jul 2026 Pending

94 Parkway Welwyn Garden City AL8 6HL

1 x Hornbeam to reduce by approx 3m height and width

Welwyn Hatfield 16 Jul 2026
6/2026/1242/EM 15 Jul 2026 Pending

49 Bridge Road Welwyn Garden City AL8 6UH

Enlargement & Replacement of existing driveway & paths

Welwyn Hatfield 15 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
6/2026/1233/EMT 14 Jul 2026 Withdrawn

62 Holwell Road Welwyn Garden City AL7 3RN

1 x Ash to reduce by 3m height and 2m width Reduce canopy to maintain a suitable size for location as tree affects four other gardens

Welwyn Hatfield 14 Jul 2026
6/2026/1236/EMT 14 Jul 2026 Pending

30 Coneydale Welwyn Garden City AL8 7RZ

Reduction by 40% of Oak tree (T5) Reduction of the Holly hedge (T8) to 8 feet high

Welwyn Hatfield 14 Jul 2026
6/2026/1234/EMT 14 Jul 2026 Pending

64 Holwell Road Welwyn Garden City AL7 3RN

1 x Silver maple (all tree works only over the garden of 5 Furzefield) to reduce to by 3m in height & reduce lateral branches by 2.5m.

Welwyn Hatfield 14 Jul 2026
6/2026/1235/EMT 14 Jul 2026 Pending

19 Beehive Green Welwyn Garden City AL7 4BE

1 x Acacia to reduce by 2m height and 1.5m width. Remove snapped limb.

Welwyn Hatfield 14 Jul 2026
6/2026/1229/TPO 13 Jul 2026 Pending

2 Bracken Lane Welwyn AL6 0RB

Remove 1 x Oak. (covered by TPO 753 (2018))

Welwyn Hatfield 13 Jul 2026
6/2026/1217/PN8 13 Jul 2026 Pending

48 Great Ganett Welwyn Garden City AL7 3DE

Prior approval for a single storey rear extension measuring 4m in depth, 3m to the eaves and the maximum height of 3m

Welwyn Hatfield 13 Jul 2026
6/2026/1220/TC 13 Jul 2026 Withdrawn

183 Howlands Welwyn Garden City AL7 4RL

T1 & T2 – Field Maples reduce the crowns by approximately 3m in height and 1.5m radially to provide a balanced crown and reduce overhang above the pub...

Welwyn Hatfield 13 Jul 2026
6/2026/1219/LAWP 13 Jul 2026 Pending

57 Briars Lane Hatfield AL10 8EX

Certificate of lawfulness for a proposed loft conversion with the installation of a rear dormer and four rooflights in the front elevation

Welwyn Hatfield 13 Jul 2026
6/2026/1230/TC 13 Jul 2026 Pending

30 Coneydale Welwyn Garden City AL8 7RZ

Tree and Hedge maintenance and remedial works 1. Reduction by 40% of oak tree (T5 on attached plan) . A trunk of this tree recently fell and was remov...

Welwyn Hatfield 13 Jul 2026
6/2026/1223/HOUSE 13 Jul 2026 Pending

100 Tolmers Road Cuffley Potters Bar EN6 4JJ

Front boundary alterations including new vehicular access gates and minor soft landscaping alterations

Welwyn Hatfield 13 Jul 2026
6/2026/1225/TC 13 Jul 2026 Pending

64 Holwell Road Welwyn Garden City AL7 3RN

1 x Silver maple to reduce to by 3m in height - only the section that is in line with boundary of No.5 Furzefield, reduce lateral branches that grow t...

Welwyn Hatfield 13 Jul 2026
6/2026/1227/TC 13 Jul 2026 Pending

19 Beehive Green Welwyn Garden City AL7 4BE

1 x Acacia to reduce by 2m height and 1.5m width. Remove snapped limb. Reducing as tree is over a public footpath & has recently snapped branches

Welwyn Hatfield 13 Jul 2026
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All towns and areas in Welwyn Hatfield (17)
Ayot St LawrenceAyot St PeterBrookmans ParkColney HeathCuffleyEssendonHatfieldNewgate StreetNorth MymmsNorthawNorthaw and CuffleyPotters BarTewin WoodWelham GreenWelwynWelwyn Garden CityWoolmer Green
Postcode districts in Welwyn Hatfield (9)
AL10AL4AL6AL7AL8AL9EN6SG13SG3

Latest application from Welwyn Hatfield: 25 Jul 2026. We check the council's portal daily.