2016
Withdrawn
18 Grove Avenue Harpenden Hertfordshire Al5 1Ex
28 Pipers Avenue Harpenden Hertfordshire AL5 1HB Data via plota.co.uk
Approved
5/2026/0228 - HSE
Description
Single storey rear extension, loft conversion, external material changes to dwelling, porch window added to front elevation Data via plota.co.uk
Other new applications on this street
Nearby new applications
15 Fovant Close Harpenden Hertfordshire AL5 1RN
***CLP*** Email
20 Aldwick Road Harpenden Hertfordshire AL5 1NG
First floor rear extension with insertion of windows to side elevation
10 Newton Close Harpenden Hertfordshire AL5 1SP
Proposed loft extension with rear box dormer and front velux windows. Raised rid...
28 Pipers Avenue Harpenden Hertfordshire AL5 1HB
First Floor Rear Extension ontop of single storey extension approved under Plann...
47 Broadstone Road Harpenden Hertfordshire AL5 1RD
Proposed garage conversion to habitable accommodation, front extension in line w...
25 High Firs Crescent Harpenden Hertfordshire AL5 1NB
Removal of the existing flat roof and construction of a pitched roof to the fron...
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
Approved
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
Approved
Single storey front and part single, part two storey side and rear extensions following d…
Within ~100m
Nearby activity
2025
Approved
23 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Removal of existing garden shed and construction of new garden room
2025
Approved
23 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Removal of existing garden shed and construction of new garden room
2024
Approved
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
Approved
25 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition of bungalow and garage and construction of replacement dwelling
2022
Approved
25 Grove Avenue Harpenden Hertfordshire Al5 1Eu
Demolition of bungalow and garage and construction of replacement dwelling
2022
Approved
12 Grove Avenue Harpenden Hertfordshire Al5 1Ex
Construction of outbuilding following demolition of existing shed
2022
Approved
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
Approved
8 Grove Avenue Harpenden Hertfordshire Al5 1Ex
Demolition of existing single storey rear extension and garage, construction of two store…
2016
Approved
17 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Single storey front, part single, part two storey rear extensions and alterations to open…
2016
Approved
34 Pipers Avenue Harpenden Hertfordshire Al5 1Hb
Single storey front and side extensions with rooflights following demolition of existing…
2016
Approved
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
1.1/10
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