Single-storey rear extension planning approval rate in North Hertfordshire
80% of 350 decided single-storey rear extension applications in North Hertfordshire 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.
80%
Approval rate, all years, from 350 decided
350
decided single-storey rear extension applications in North Hertfordshire: 279 approved, 71 refused
74%
Recent rate, decided since 2022, from 141 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 Withdrawn applications are excluded.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 single-storey rear extension decisions in North Hertfordshire
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 |
|---|---|---|---|
| 25/02572/FPH | 2026 | Refused | Single storey rear extension and front porch extension. Insertion of two rooflights to existing rear extension (as amended by plans rec'd 17 December 2025) 80 Balmoral Road Hitchin Hertfordshire SG5 1XQ |
| 25/02817/FPH | 2026 | Refused | First floor and single storey rear extension. 40 York Road Hitchin Hertfordshire SG5 1XB |
| 25/02872/LBC | 2026 | Approved | Single storey rear extension, replace existing windows and front door, and internal alterations to modern extended parts of the house (development already ca... Tinkers Cottage Dane End Therfield Royston Hertfordshire SG8 9RH |
| 25/03053/LDCP | 2026 | Approved | Single storey rear extension 46 Fairfield Way Great Ashby Stevenage Hertfordshire SG1 6BF |
| 25/03228/LDCP | 2026 | Approved | Single storey rear extension following removal of existing rear conservatory 99 High Street Barkway Royston Hertfordshire SG8 8ED |
| 26/00061/FPH | 2026 | Refused | Single storey rear extension, following demolition of existing rear elements. Raised decking, balustrade and associated stairs to rear garden. 56 Wilshere Crescent Hitchin Hertfordshire SG4 0PQ |
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 North Hertfordshire
- Two-storey rear extension 35%, 95 decided
- Wraparound extension 40%, 15 decided
- Side extension 53%, 90 decided
- Loft conversion and dormer 77%, 95 decided
- Rooflight 92%, 221 decided
- Outbuilding and garden room 70%, 79 decided
- Porch 89%, 35 decided
- Garage conversion 86%, 74 decided
- Basement 93%, 14 decided
- Window and door 91%, 270 decided