Planning applications in Welwyn Hatfield, August 2026

48 Great Ganett Welwyn Garden City AL7 3DE

Erection of single storey rear extension

Folly Lodge And Arch Swanley Bar Lane Little Heath Potters Bar EN6 1NN

Erection of an outbuilding to provide a home gym and office

17 Sylvandale Welwyn Garden City AL7 2HS

Erection of single storey front and rear extension, garage conversion and erection of rear outbuilding

80 Travellers Lane Hatfield AL10 8SF

Erection of a part single, part two storey rear extension, part first floor, part two storey side extension, single storey front extension and alterations to openings to facilitate the subdivision of the existing dwelling to create 1 No. three-bedroom dwelling and 1 No. two-bedroom dwelling

10 Scholars Mews Welwyn Garden City AL8 7JQ

1 x Crab Apple to reduce by approx 1.2m height and width

6A Wendover Drive Welwyn AL6 9LT

T1 1 x Beech to remove in sections to ground level - Tree is almost dead and in poor condition T2 1 x Beech to reduce to clear property by 1.5m - Branches rubbing on property

Gosmore Brocket Road Welwyn Garden City AL8 7TT

Erection of single storey side extensions x 2 and two storey rear extension

2 Cunningham Avenue Hatfield AL10 9LP

Certificate of lawfulness for a proposed loft conversion including a rear dormer and rooflights within the front roofslope

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

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

2 Valley Road Welwyn Garden City AL8 7DF

1 x Holly to reduce height by approximately 3m height 1 x Lawson cypress to reduce by approximately 2.5m in height. 1 x Plum to reduce height by approximately 3m Above 3 are domination side of the garden, they are thick dense and evergreen. Reducing to allow more light into garden and control the size 1 x Apple to reduce lateral branches over lawn area by approximately 2m to reduce lateral branches over lawn to maintain size of tree & provide more space and light to lawn area 1 x Ash to reduce lateral branches over lawn area by approximately 2m to reduce lateral branches as now crossing half the garden and blocking light

49 Knightsfield Welwyn Garden City AL8 7JE

1 x Irish Yew to remove in sections to ground level. Remove as tree is close to front room window and blocking the light. Tree owner is also elderly and wants to be able to see out of the window

6 West View Hatfield AL10 0PJ

Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves

49 Knightsfield Welwyn Garden City AL8 7JE

1 x Irish Yew to remove in sections to ground level. Remove as tree is close to front room window and blocking the light

6 West View Hatfield AL10 0PJ

Certificate of lawfulness for erection of single storey rear extension, side and rear extension, hip to gable loft conversion with rear dormer

6 West View Hatfield AL10 0PJ

Erection of part single part two-storey rear extension

Land at Great North Road Stanborough Welwyn Garden City AL8 7TQ

Variation of condition 28 (approved plans) on planning permission 6/2025/0764/FULL

2 Valley Road Welwyn Garden City AL8 7DF

1 x Holly to reduce height by approx 3m height 1 x Lawson Cypress to reduce by approx 2.5m in height 1 x Plum to reduce height by approx 3m 1 x Apple to reduce lateral branches by approx 2m to reduce lateral branches over lawn 1 x Ash to reduce lateral branches over lawn area by approx 2m

41 Rosedale Welwyn Garden City AL7 1DW

Remove 2x quince trees - trees are engulfed in ivy and have a lot of deadwood present

23 The Ridgeway Potters Bar EN6 4BB

Certificate of lawfulness for the erection of an outhouse to accommodate gym facilities

29 Sheepcote Welwyn Garden City AL7 4QA

Remove 40ft ash tree - The ash tree is showing signs of basal decay and structural defects from previous poor pruning, raising concerns over its long-term stability. Its raised roots are also damaging and lifting garden pathways, creating an ongoing maintenance and trip hazard. Continued pruning would require significant ongoing expenditure, therefore removal is considered appropriate on arboricultural, safety and practical grounds

57 Tolmers Road Cuffley Potters Bar EN6 4JG

Submission of details pursuant to condition number 3 (Hard and Soft Landscaping) on planning permission 6/2026/0435/FULL

82 Attimore Road Welwyn Garden City AL8 6LP

Remove Ash tree stem to ground level - tree is in the way of fence/boundary line.

9 Autumn Grove Welwyn Garden City AL7 4DB

Installation of 1 x Extreme uPVC french door set, Smooth White uPVC frames inside & out, Multipoint locking mechanism, Ultion High Security door cylinder, White hardware, Trickle Vents to comply and Clear Toughened safety glass

82 Attimore Road Welwyn Garden City AL8 6LP

Remove Ash tree stem to ground level

5 Ashley Close Welwyn Garden City AL8 7LH

Proposed addition of a 3104 x 5474 mm pent roofed wooden shed to rear garden

9 Barleycroft Green Welwyn Garden City AL8 6JY

Replacement of existing wooden garage with wooden shed

4 Brookmans Avenue Brookmans Park AL9 7QJ

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

6 Marsden Road Welwyn Garden City AL8 6XZ

Erection of single storey side extension and part single, part two storey rear extension

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 6/2025/1617/HOUSE

9 Barleycroft Green Welwyn Garden City AL8 6JY

Replacement of wooden 'garage' (only been used for storage) with a similar size wooden shed in the same location. The wooden garage is 6.3m x 2.75m. The proposed shed will be 6m x 3m.

16 Oak Road Woolmer Green SG3 6LS

Erection of part single, part two storey rear extension, new windows and doors to existing side and rear elevations and installation of rooflight within the rear roofslope

38 The Grove Brookmans Park AL9 7RN

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

108 Tolmers Road Cuffley Potters Bar EN6 4JR

Proposed replacement dwelling

Glebe House Ellesfield Welwyn AL6 9HB

TPO 1016 1 x White Poplar to reduce upper canopy by approximately 10m height - Reduce upper canopy due to large volume of regrowth from historical reduction. Cavities and decay at old pruning wounds. Tree is close to neighbouring properties with a recent limb failure. 1 x White willow leaning over river to reduce by approximately 50% -tree is leaning heavily over river, reduction will prevent risk of failing. 1 x Goat willow to reduce by approximately 4m height and 3m width - tree is in decline, reduction is to stabilise upper canopy and allow retention of tree.

5 Branch Close Hatfield AL10 0TW

Garage conversion and extension to garage for use as annex

6 Parkway Close Welwyn Garden City AL8 6HJ

1 x Hawthorn to reduce height to leave around 4-5m above ground level. To retain balance and minimise overhang to neighbours garden

14 Brockswood Lane Welwyn Garden City AL8 7BG

Fitting an air-to-air heat pump on a rear wall

6 Parkway Close Welwyn Garden City AL8 6HJ

1 x Hawthorn to reduce height to leave around 4-5m above ground level. To retain balance and minimise overhang to neighbours garden

3 Holly Hall Court Church Street Welwyn AL6 9LH

Replacement like-for-like front door and one window

Tesco Heart Building Car Park Shire Park Welwyn Garden City AL7 1TW

Installation of one padel tennis court as an additional ancillary sporting and recreational facility to the Tesco office headquarters, together with associated floodlighting, and hard landscaping works.

469 Howlands Welwyn Garden City AL7 4HP

Removal of front hedge on boundary of property and to replace existing block paving, with new block paving with better drainage

16 Oak Road Woolmer Green SG3 6LS

Erection of annexe

36 Warren Way Digswell Welwyn AL6 0DN

Erection of two storey side extension, part single/two storey rear extension, insertion of two front dormer windows and front porch following the demolition of existing single storey rear extension and detached garage

Land off London Road Woolmer Green SG3 6JZ

Submission of details pursuant to condition 19 (effectiveness of the remediation), condition 22 (site investigation and post investigation assessment), condition 23 (drainage scheme) & condition 24 (construction details and specifications) on planning permission 6/2023/2552/OUTLINE

Pavement Outside 37-40 Wigmores North Welwyn Garden City AL8 6PH

Installation of 2x advertisement panels on either side of Street Hub Unit

5610 Gypsy Moth Avenue Hatfield Business Park Hatfield AL10 9BS

Submission of details pursuant to Condition 4 (Verification Report) on planning permission 6/2022/2759/FULL

4 Brookmans Avenue Brookmans Park AL9 7QJ

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

Monks Walk School Knightsfield Welwyn Garden City AL8 7NL

Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), Condition 2 (Habitat Management and Monitoring Plan) and Condition 3 (Construction Environmental Management Plan) on planning permission 6/2026/0205/MAJ

168 Blythway Welwyn Garden City AL7 1DU

Refurbishment and upgrade of existing rendered, gable wall, with the application of a ‘breathable’ top silicone coat for durability and longevity