Single-storey rear extension planning approval rate in Barnet
69% of 8,593 decided single-storey rear extension applications in Barnet 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.
69%
Approval rate, all years, from 8,593 decided
8,593
decided single-storey rear extension applications in Barnet: 5,938 approved, 2,655 refused
72%
Recent rate, decided since 2022, from 3,608 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 Withdrawn applications are excluded.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 Barnet
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 |
|---|---|---|---|
| 23/1995/HSE | 2026 | Approved | Single storey rear extension |
| 25/1320/FUL | 2026 | Approved | Erection of a two storey dwelling. Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights and singl... |
| 25/3964/HSE | 2026 | Approved | Single storey rear extension of 4.50 metres depth with rear terrace of 2.0 metres depth and associated railings. Roof extension involving side and rear dorme... |
| 25/4459/HSE | 2026 | Refused | Single storey rear extension with 2no. rooflights |
| 25/4549/HSE | 2026 | Refused | Single storey rear extension |
| 25/4558/FUL | 2026 | Refused | Conversion of the existing dwelling into 2no. self-contained flats including single storey rear extension with green roof and parapet, front porch infill, fi... |
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 Barnet
- Two-storey rear extension 76%, 3,903 decided
- Wraparound extension 87%, 1,573 decided
- Side extension 81%, 1,910 decided
- Loft conversion and dormer 74%, 1,532 decided
- Rooflight 87%, 4,921 decided
- Outbuilding and garden room 73%, 1,394 decided
- Porch 82%, 478 decided
- Garage conversion 90%, 574 decided
- Basement 84%, 1,816 decided
- Window and door 92%, 1,399 decided