37 Alzey Gardens Harpenden Hertfordshire AL5 5SX
Under Consultation
5/2026/0542 - HSE
Description
Proposed single storey rear and two storey side extensions, loft conversion with rear dormer, front rooflights, change to render and timber cladding, demolition of existing conservatory and garage, remodelling of roof and increase in ridge height
Other new applications on this street
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25 High Firs Crescent Harpenden AL5 1NB
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50 Alzey Gardens Harpenden Hertfordshire AL5 5SY
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Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Within ~100m
Nearby activity
2025
With conditions
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2025
With conditions
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2025
With conditions
29 Alzey Gardens Harpenden Hertfordshire Al5 5Sx
Demolition of existing detached garage, construction of single storey side and rear exten…
2025
With conditions
29 Alzey Gardens Harpenden Hertfordshire Al5 5Sx
Demolition of existing detached garage, construction of single storey side and rear exten…
2024
With conditions
36 Alzey Gardens Harpenden Hertfordshire Al5 5Sx
Demolition of existing semi-detached dwelling and construction of semi-detached dwelling…
2024
With conditions
63 Highfield Avenue Harpenden Hertfordshire Al5 5Tz
Single storey rear extension with rooflights following demolition of existing single stor…
2023
63 Highfield Avenue Harpenden Hertfordshire Al5 5Tz
Single storey rear extension with rooflights
2023
63 Highfield Avenue Harpenden Hertfordshire Al5 5Tz
Single storey rear extension with rooflights
2023
47 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Two storey side extension with front porch, front bay window extension, new side opening…
2023
47 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Two storey side extension with front porch, front bay window extension, new side opening…
2023
31 Alzey Gardens Harpenden Hertfordshire Al5 5Sx
Demolition of garage and construction of two storey side and single storey rear extension…
2023
31 Alzey Gardens Harpenden Hertfordshire Al5 5Sx
Demolition of garage and construction of two storey side and single storey rear extension…
2022
With conditions
61 Highfield Avenue Harpenden Hertfordshire Al5 5Tz
Two storey side extension with roof lights & conversion of outbuilding to home office
2022
With conditions
61 Highfield Avenue Harpenden Hertfordshire Al5 5Tz
Two storey side extension with roof lights & conversion of outbuilding to home office
2021
With conditions
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2021
With conditions
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2021
Withdrawn
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2021
Withdrawn
50 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side extension with rooflights and two storey rear extension following demo…
2021
With conditions
65 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Demolition of existing garage and construction of two storey side and rear extension (res…
2021
With conditions
65 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Demolition of existing garage and construction of two storey side and rear extension (res…
2016
With conditions
59 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Garage conversion and alterations to openings
2016
With conditions
67 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side and rear extension
2016
With conditions
67 Alzey Gardens Harpenden Hertfordshire Al5 5Sy
Single storey side and rear extension
2016
With conditions
3 St Pauls Close Harpenden Hertfordshire Al5 5Uh
Single storey rear extension, single storey front and side extension built up to existing…
2016
With conditions
3 St Pauls Close Harpenden Hertfordshire Al5 5Uh
Single storey rear extension, single storey front and side extension built up to existing…
St Albans
Planning Authority Score
1.2/10
Poor
#287 of 292 councils
Relevant to this application:
Householder decisions
St Albans is one of the slowest councils in England for householder decisions, ranking #282 out of 292. The council extends the time limit on 61% 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, 2025
86%
Overall approval rate
Below avg (87%) #195 of 292
88%
Householder approved
Below avg (90%) #223 of 292
32%
Decided in 8 weeks
Below avg (64%) #282 of 292
61%
Extended time limit
Above avg (40%) #270 of 292
71%
Minor dwellings approved
127 decided (1-9 homes)
69%
Major dwellings approved
16 decided (10+ homes)
77%
Change of use approved
22 decided
1,375
Total decisions
195 refused in 2025