2016
Withdrawn
18 Grove Avenue Harpenden Hertfordshire Al5 1Ex
28 Pipers Avenue Harpenden Hertfordshire AL5 1HB
Approved
5/2026/0228 - HSE
Description
Single storey rear extension, loft conversion, external material changes to dwelling, porch window added to front elevation
Other new applications on this street
Nearby new applications
25 High Firs Crescent Harpenden AL5 1NB
Removal of the existing flat roof and construction of a pitched roof to the fron...
1 Eastmoor Park Harpenden Hertfordshire AL5 1BN
***HSE***
12 Leycroft Way Harpenden AL5 1JW
First floor side extension over existing single storey side projection, with new...
14 Ennis Close Harpenden Hertfordshire AL5 1SS
15 Pendennis Court Harpenden Hertfordshire AL5 1SG
HSE
39 Eastcote Drive Harpenden Hertfordshire AL5 1SE
***CLP***
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2019
With conditions
Single storey front and side extension
2019
Approved
Certificate of Lawfulness (proposed) - Loft extension
2019
Approved
Prior Notification - Single storey rear extension 3.95m in height x 5m in depth and 2.447…
2018
With conditions
Single storey front and part single, part two storey side and rear extensions following d…
Within ~100m
Nearby activity
2025
With conditions
23 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Removal of existing garden shed and construction of new garden room
2025
With conditions
23 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Removal of existing garden shed and construction of new garden room
2024
With conditions
17 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Part single, part two storey side extension with front and rear rooflights, removal and r…
2023
17 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Proposed single storey and part double storey side extension
2023
17 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Proposed single storey and part double storey side extension
2023
11 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition and erection of new dwelling and associated works including alterations to dri…
2023
11 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition and erection of new dwelling and associated works including alterations to dri…
2023
12A Grove Avenue Harpenden Hertfordshire Al5 1Ex
Single storey outbuilding to rear of garden following demolition of timber shed
2023
12A Grove Avenue Harpenden Hertfordshire Al5 1Ex
Single storey outbuilding to rear of garden following demolition of timber shed
2023
11 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Single storey rear and side extensions and two storey front extension, widening of droppe…
2023
11 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Single storey rear and side extensions and two storey front extension, widening of droppe…
2022
23 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Single storey side and rear extensions, raising of ridge height to facilitate loft conver…
2022
23 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Single storey side and rear extensions, raising of ridge height to facilitate loft conver…
2022
With conditions
25 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition of bungalow and garage and construction of replacement dwelling
2022
With conditions
25 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition of bungalow and garage and construction of replacement dwelling
2022
With conditions
12 Grove Avenue Harpenden Hertfordshire Al5 1Ex
Construction of outbuilding following demolition of existing shed
2022
With conditions
12 Grove Avenue Harpenden Hertfordshire Al5 1Ex
Construction of outbuilding following demolition of existing shed
2021
Refused
23 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Extension and reconfiguration of roof with side and rear extensions to provide first floo…
2021
Refused
23 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Extension and reconfiguration of roof with side and rear extensions to provide first floo…
2022
With conditions
8 Grove Avenue Harpenden Hertfordshire Al5 1Ex
Demolition of existing single storey rear extension and garage, construction of two store…
2016
With conditions
17 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Single storey front, part single, part two storey rear extensions and alterations to open…
2016
With conditions
34 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Single storey front and side extensions with rooflights following demolition of existing…
2016
With conditions
34 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Single storey front and side extensions with rooflights following demolition of existing…
2016
Withdrawn
18 Grove Avenue Harpenden Hertfordshire Al5 1Ex
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