Basement planning approval rate in St Albans
51% of 124 decided basement applications in St Albans were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
51%
Approval rate, all years, from 124 decided
124
decided basement applications in St Albans: 63 approved, 61 refused
57%
Recent rate, decided since 2022, from 47 decided
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Example basement decisions in St Albans
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 5/2025/1650 | 2026 | Refused | Part two storey side and rear extension, and part single storey side, front and rear extension with basement below two storey extension and external alterati... 23 Kirkdale Road Harpenden Hertfordshire Al5 2Pt |
| 5/2022/3052 | 2025 | Refused | Conversion of existing commercial unit to create two self-contained three bedroom houses following removal of existing rear extension, creation of basement l... 56 Albert Street St Albans Hertfordshire Al1 1Ru |
| 5/2023/1991 | 2025 | Approved | Listed Building consent - Single storey rear extension following removal of existing single storey rear projection, enlargement of basement lightwell and rep... St Agnells Farm Lybury Lane Redbourn Hertfordshire Al3 7Jl |
| 5/2024/1514 | 2025 | Refused | Demolition of existing roof and replacement with flat roof, construction of basement level, erection of front extension creating service riser and alteration... 2 Slimmons Drive St Albans Hertfordshire Al4 9As |
| 5/2024/2201 | 2025 | Approved | Listed Building consent - Kitchen, dining & utility room alterations, replacement basement rear door and windows, ground and first floor plaster repairs, ins... 21 College Street St Albans Hertfordshire Al3 4Pw |
| 5/2025/1164 | 2025 | Approved | Discharge of Condition 5 (plaster finish) of Listed Building consent 5/2024/2201 dated 10/2/2025 for Kitchen, dining & utility room alterations, replacement... 21 College Street St Albans Hertfordshire Al3 4Pw |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in St Albans
- Single-storey rear extension 42%, 1,253 decided
- Two-storey rear extension 20%, 592 decided
- Wraparound extension 26%, 177 decided
- Side extension 31%, 349 decided
- Loft conversion and dormer 68%, 670 decided
- Rooflight 65%, 801 decided
- Outbuilding and garden room 57%, 370 decided
- Porch 45%, 124 decided
- Garage conversion 70%, 141 decided
- Window and door 65%, 477 decided