Two-storey rear extension planning approval rate in St Albans
20% of 592 decided two-storey rear extension 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.
20%
Approval rate, all years, from 592 decided
592
decided two-storey rear extension applications in St Albans: 121 approved, 471 refused
12%
Recent rate, decided since 2022, from 239 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 Withdrawn applications are excluded.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 two-storey rear extension 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 |
|---|---|---|---|
| 5/2025/1837 | 2026 | Refused | Demolition of single storey rear projections and construction of single storey rear extension with rooflights, two storey front extension, new front canopy a... Crossfields House Lamer Lane Wheathampstead Hertfordshire Al4 8Rq |
| 5/2025/1993 | 2026 | Refused | Part single, part two storey rear extension with a side picture window box at ground floor, loft conversion with front rooflights and rear dormer window and... 28 White Hedge Drive St Albans Hertfordshire Al3 5Tt |
| 5/2025/2043 | 2026 | Approved | Discharge of Conditions 3 (materials), 5 (slab levels), 12 (Habitat Management and Monitoring Plan) and Biodiversity Gain Condition of planning permission 5/... 58 Oaklands Lane Smallford St Albans Hertfordshire Al4 0Hs |
| 5/2025/2148 | 2026 | Refused | Single storey rear, two storey side and front extensions following demolition of detached garage, installation of solar panels, alterations to openings and c... 1 Maltings Drive Wheathampstead Hertfordshire Al4 8Qj |
| 5/2025/2155 | 2026 | Approved | Non Material Amendment - Change of bifolding doors to patio doors, relocation of roof window and alteration to size of planning permission 5/2023/1733 dated... 18 Blacksmiths Lane St Albans Hertfordshire Al3 4Sq |
| 5/2024/2103 | 2025 | Approved | Discharge of Conditions 3 (Sample of materials), 4 (sample of materials), 6 (method statement), 9 (bat survey) of planning permission 5/2023/0816 dated 14/05... Annables Manor Annables Lane Kinsbourne Green Harpenden Hertfordshire Al5 3Pr |
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
- 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
- Basement 51%, 124 decided
- Window and door 65%, 477 decided