16 Mardley Hill Welwyn AL6 0TN Data via plota.co.uk
Pending
6/2026/1108/TPO
Description
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. (Covered by TPO 24 A3) Data via plota.co.uk
Other new applications on this street
Nearby new applications
2 Woodacre Drive Welwyn AL6 0UA
T1 - Oak - Prune Western aspect by 2 metres to reduce overhang over building
69 Robbery Bottom Lane Welwyn AL6 0UL
Raising the existing roof line incorporating new rooflights, new dormer, externa...
Brambles Briary Wood End Welwyn AL6 0TD
TPO 800 T1 - Chestnut tree - crown reduce by approx 4-5m - tree is multi stem an...
4 Marlborough Close Welwyn AL6 0UG
Erection of single storey rear infill extension
Historical activity at this location
32 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2021
Approved
T3 - crown reduce 1 x oak tree by 2-3m and remove deadwood
2021
Approved
T3 - crown reduce 1 x oak tree by 2-3m and remove deadwood
2021
Approved
T1 - Beech 5-6m crown reduction T2 - Beech 5-6m crown reduction
2021
Approved
T1 - Beech 5-6m crown reduction T2 - Beech 5-6m crown reduction
2018
Approved
Reduce 1 x Oak tree by 40%
2016
Approved
Reduce and shape crown on Oak tree by 35% on TPO 24 Area 3 (1976)
2016
Approved
Reduce and shape crown on Oak tree by 35% on TPO 24 Area 3 (1976)
Within ~100m
Nearby activity
2025
Approved
18 Mardley Hill Welwyn AL6 0TN
Erection of a first floor side extension and new front boundary gates.
2025
Approved
18 Mardley Hill Welwyn AL6 0TN
Erection of a first floor side extension and new front boundary gates.
2025
Approved
18 Mardley Hill Welwyn AL6 0TN
Crown reduce 1 x Sycamore Acer Pseudoplatinus by 20% TPO 633 (2017) T4
2025
Approved
18 Mardley Hill Welwyn AL6 0TN
Crown reduce 1 x Sycamore Acer Pseudoplatinus by 20% TPO 633 (2017) T4
2025
Refused
33 Mardley Hill Welwyn AL6 0TT
Sycamore x 1 to fell. (TPO 24 (1976) A3)
2025
Refused
33 Mardley Hill Welwyn AL6 0TT
Sycamore x 1 to fell. (TPO 24 (1976) A3)
2024
Approved
31 Mardley Hill Welwyn AL6 0TT
13 x multi-stemmed beech (Fagus sylvatica) trees to the front of the property to be crown…
2024
Approved
41 Mardley Hill Welwyn AL6 0TT
Retention of outdoor seating area
2024
Approved
4 Mardley Dell Welwyn AL6 0UR
1 x Beech to reduce by approximately 4m in height. The upper canopy is to be reduced by a…
2024
Approved
39 Mardley Hill Welwyn AL6 0TT
Erection of a single storey rear extension, formation of level access to property and out…
2023
Approved
2 The Drive Welwyn AL6 0TR
T1 reduce oak by 1.5 metres due to size and risk of damage. T4 reduce oak by 1.5 metres d…
2023
Approved
2 The Drive Welwyn AL6 0TR
T1 reduce oak by 1.5 metres due to size and risk of damage. T4 reduce oak by 1.5 metres d…
2023
Refused
14 Mardley Dell Welwyn AL6 0UR
Fell oak tree (Oak T1). To replace with a silver birch or rowan further away from the bou…
2023
Refused
14 Mardley Dell Welwyn AL6 0UR
Fell oak tree (Oak T1). To replace with a silver birch or rowan further away from the bou…
2019
Withdrawn
10 Mardley Dell Welwyn AL6 0UR
Reduce 2 x Beech tree by 2M , TPO 599 (2016)
2022
Approved
14 Mardley Wood Welwyn AL6 0UX
Erection of a single storey front, side and rear extension, first floor front extension…
2022
Approved
14 Mardley Wood Welwyn AL6 0UX
Erection of a single storey front, side and rear extension, first floor front extension…
2022
Approved
1A The Drive Welwyn Hertfordshire AL6 0TW
Reduce crowns of 1 x Oak and 1 x Beech trees by 25-30% to alleviate weight on leaning ste…
2022
Approved
1A The Drive Welwyn Hertfordshire AL6 0TW
Reduce crowns of 1 x Oak and 1 x Beech trees by 25-30% to alleviate weight on leaning ste…
2021
Approved
8 Mardley Dell Welwyn AL6 0UR
Erection of a single storey rear extension
2016
Approved
4 Mardley Dell Welwyn AL6 0UR
Reduce Beech tree by upto 12ft covered by TPO 24 (1976)
2016
Approved
2 The Drive Welwyn AL6 0TR
Erection of two storey rear extension, first floor side extension over double garage and…
2016
Approved
2 The Drive Welwyn AL6 0TR
Erection of two storey rear extension, first floor side extension over double garage and…
2016
Approved
12 Mardley Hill Welwyn AL6 0TN
Fell 9 Sycamore trees, 1 Beech tree and 1 Oak tree plus reduce 2 Beech trees, 1 Chestnut…
2016
Approved
12 Mardley Hill Welwyn AL6 0TN
Fell 9 Sycamore trees, 1 Beech tree and 1 Oak tree plus reduce 2 Beech trees, 1 Chestnut…
Welwyn Hatfield
Planning Authority Score
2.2/10
Poor
#262 of 292 councils
Relevant to this application:
Householder decisions
Welwyn Hatfield is slower than most councils at deciding householder applications, ranking #221 out of 292. 50% of applications have the time limit extended, above the 40% national average. Householder applications are slightly less likely to be approved here (87%) than the national average (90%).
Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application.
View full council performance
Welwyn Hatfield decision performance
Based on MHCLG data, 2025
88%
Overall approval rate
Above avg (87%) #159 of 292
87%
Householder approved
Below avg (90%) #230 of 292
54%
Decided in 8 weeks
Below avg (64%) #221 of 292
50%
Extended time limit
Above avg (40%) #229 of 292
85%
Minor dwellings approved
62 decided (1-9 homes)
93%
Major dwellings approved
14 decided (10+ homes)
83%
Change of use approved
23 decided
630
Total decisions
78 refused in 2025