Side extension planning approval rate in Watford
27% of 37 decided side extension applications in Watford 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.
27%
Approval rate, all years, from 37 decided
37
decided side extension applications in Watford: 10 approved, 27 refused
27%
Recent rate, decided since 2022, from 15 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 Withdrawn applications are excluded.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 side extension decisions in Watford
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 |
|---|---|---|---|
| 24/00968/LDC | 2025 | Approved | Lawful development certificate for loft conversion with side dormers and erection of single storey side extension. 8 Garston Lane Watford WD25 9QJ |
| 24/01018/FULH | 2025 | Refused | Erection of a double storey rear extension and a single storey side and first floor side extension. 13 Park Road Watford WD17 4QP |
| 24/01033/FULH | 2025 | Refused | Erection of two storey side extension. 40 St Georges Road Watford WD24 6DD |
| 25/00705/LDC | 2025 | Approved | Lawful Development Certificate for a single storey side extension. 62 Wiggenhall Road Watford WD18 0AL |
| 24/00026/LDC | 2024 | Approved | Lawful Development Certificate for: Erection of single storey side extension. 25 Hillrise Avenue Watford Hertfordshire WD24 7NP |
| 23/00033/FULH | 2023 | Refused | Erection of two storey side extension 87 Middle Way Watford Hertfordshire WD24 6HR |
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 Watford
- Single-storey rear extension 41%, 179 decided
- Two-storey rear extension 0%, 40 decided
- Wraparound extension 0%, 13 decided
- Loft conversion and dormer 75%, 61 decided
- Rooflight 84%, 140 decided
- Outbuilding and garden room 63%, 8 decided
- Porch 36%, 14 decided
- Garage conversion 50%, 10 decided
- Basement unknown, 2 decided
- Window and door 84%, 19 decided