42 Cowper Road Harpenden Hertfordshire AL5 5NG Data via plota.co.uk
Approved
TP/2026/0124 - TCA
Description
T1 - Norway Maple: Reduce back to previous pruning points. Data via plota.co.uk
Other new applications on this street
Nearby new applications
35 Overstone Road Harpenden Hertfordshire AL5 5PN
6 High Street Harpenden Hertfordshire AL5 2TB
Prior Approval - Retention of Commercial premises at ground floor level. Change ...
10 Devonshire Road Harpenden Hertfordshire AL5 4TJ
G1-Beech hedges-Reduce in height to 2 metres to maintain size and shape. G2-Coni...
4 Lyndhurst Drive Harpenden Hertfordshire AL5 5QN
Post - ppf requested
12 Station Road Harpenden Hertfordshire AL5 4SE
Construction of a 2 storey detached unit at the rear of the site to provide a gr...
10 Grant Gardens Harpenden Hertfordshire AL5 4QD
Historical activity at this location
30 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2023
Approved
Large dark Sycamore at the end of our garden. Works are to remove tree. Tree is currently…
2023
Approved
Large dark Sycamore at the end of our garden. Works are to remove tree. Tree is currently…
2023
Approved
Sycamore - Crown reduce by 50%, evenly to retain natural shape. The tree has been pruned…
2023
Approved
Sycamore - Crown reduce by 50%, evenly to retain natural shape. The tree has been pruned…
2018
Approved
Single storey side extension with rooflights
Within ~100m
Nearby activity
2025
Refused
7 Betjeman Close Harpenden Hertfordshire Al5 4Xh
Demolition of the existing dwelling and construction of enlarged replacement dwelling
2025
Refused
7 Betjeman Close Harpenden Hertfordshire Al5 4Xh
Demolition of the existing dwelling and construction of enlarged replacement dwelling
2024
Approved
27 Cowper Road Harpenden Hertfordshire Al5 5Nf
Single storey side/rear extension with roof lights, part garage conversion, replacement w…
2024
Approved
2B Kipling Way Harpenden Hertfordshire Al5 4Xg
Replacing windows and doors
2024
Approved
20 Kipling Way Harpenden Hertfordshire Al5 4Xg
Prior Notification - Single storey rear extension 3.72m in height x 4.0m in depth with 2…
2024
22 Cowper Road Harpenden Hertfordshire Al5 5Ng
Loft conversion with rear dormer window and front rooflights
2023
7 Cowper Road Harpenden Hertfordshire Al5 5Nf
T2 Sycamore Remove The tree works are proposed to stop the influence of the tree(s) on th…
2023
7 Cowper Road Harpenden Hertfordshire Al5 5Nf
T2 Sycamore Remove The tree works are proposed to stop the influence of the tree(s) on th…
2023
Approved
2B Kipling Way Harpenden Hertfordshire Al5 4Xg
Conifer at rear right hand side in back garden - tree leaning significantly. Plan to repl…
2023
Approved
2B Kipling Way Harpenden Hertfordshire Al5 4Xg
Conifer at rear right hand side in back garden - tree leaning significantly. Plan to repl…
2023
Withdrawn
1 Cowper Road Harpenden Hertfordshire Al5 5Nf
Rear Garden T1 Lime T2 Horse Chestnut T3 Lime T4 Horse Chestnut T5 Horse Chestnut to be f…
2023
Withdrawn
1 Cowper Road Harpenden Hertfordshire Al5 5Nf
Rear Garden T1 Lime T2 Horse Chestnut T3 Lime T4 Horse Chestnut T5 Horse Chestnut to be f…
2023
33 Cowper Road Harpenden Hertfordshire Al5 5Nf
Single storey rear extension with rooflights
2023
33 Cowper Road Harpenden Hertfordshire Al5 5Nf
Single storey rear extension with rooflights
2023
44 Cowper Road Harpenden Hertfordshire Al5 5Ng
A tall Larch tree at the back of my property. A tree surgeon tells me it is dead and is i…
2023
44 Cowper Road Harpenden Hertfordshire Al5 5Ng
A tall Larch tree at the back of my property. A tree surgeon tells me it is dead and is i…
2022
14 Cowper Road Harpenden Hertfordshire Al5 5Ng
Single storey rear extension and loft conversion with rear dormer window and front roofli…
2022
14 Cowper Road Harpenden Hertfordshire Al5 5Ng
Single storey rear extension and loft conversion with rear dormer window and front roofli…
2022
Approved
1 Cowper Road Harpenden Hertfordshire Al5 5Nf
T1 Horse Chestnut, T2 Horse Chestnut, T3 Lime - 30% reduction to each tree, adjacent tree…
2022
Approved
1 Cowper Road Harpenden Hertfordshire Al5 5Nf
T1 Horse Chestnut, T2 Horse Chestnut, T3 Lime - 30% reduction to each tree, adjacent tree…
2016
Approved
22 Cowper Road Harpenden Hertfordshire Al5 5Ng
Rear infill extension
2016
Approved
20 Cowper Road Harpenden Hertfordshire Al5 5Ng
Single storey side and rear extension, garage conversion to habitable room and alteration…
2016
Approved
20 Cowper Road Harpenden Hertfordshire Al5 5Ng
Single storey side and rear extension, garage conversion to habitable room and alteration…
2016
Approved
1 Betjeman Close Harpenden Hertfordshire Al5 4Xh
Single storey rear extension
2016
Approved
1 Betjeman Close Harpenden Hertfordshire Al5 4Xh
Single storey rear extension
St Albans
Planning Authority Score
1.1/10
Poor
#290 of 296 councils
Relevant to this application:
Householder decisions
St Albans is one of the slowest councils in England for householder decisions, ranking #285 out of 296. The council extends the time limit on 64% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).
Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application.
View full council performance
St Albans decision performance
Based on MHCLG data, the year to March 2026
87%
Overall approval rate
Above avg (87%) #180 of 296
88%
Householder approved
Below avg (90%) #226 of 296
29%
Decided in 8 weeks
Below avg (63%) #285 of 296
64%
Extended time limit
Above avg (41%) #278 of 296
74%
Minor dwellings approved
130 decided (1-9 homes)
61%
Major dwellings approved
18 decided (10+ homes)
77%
Change of use approved
26 decided
1,411
Total decisions
184 refused in the year to March 2026