Single-storey rear extension planning approval rate in Watford
41% of 179 decided single-storey rear 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.
41%
Approval rate, all years, from 179 decided
179
decided single-storey rear extension applications in Watford: 73 approved, 106 refused
36%
Recent rate, decided since 2022, from 66 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 Withdrawn applications are excluded. The eight-record threshold is a display rule, not a guarantee that a sample is statistically reliable.
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.
Coverage for this project type
Dated records in this archive span 2015 to 2025. 0 of 179 decided records have no year recorded. Coverage may have gaps within the date range.
66 decided records are dated 2022 or later. This is an archive count, not a measure of all current council activity.
These project categories can include different application routes and proposals combining several kinds of work. Read the proposal and decision type before comparing it with your project.
Check planning requirements in Watford, or read about permitted development in Watford. An approval rate does not decide which route your property qualifies for.
Example single-storey rear 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.
Search Watford's planning register using the references below. Descriptions may be shortened; read the complete proposal and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 24/01013/LDC | 2025 | Approved | Lawful Development Certificate for a single storey rear extension to a depth of 3m. Hip to gable roof alterations, construction of rear dormer. 2A Perivale Gardens Watford WD25 0HR |
| 24/01029/FULH | 2025 | Refused | Erection of single storey rear extension, raising of roof to existing ground floor rear extension, raised patio to rear and alterations to fenestration 109 Hempstead Road Watford WD17 3HE |
| 24/01056/FUL | 2025 | Refused | Erection of single storey rear extension to the building to form a new studio flat at ground floor level. 119 St Albans Road Watford WD17 1RD |
| 24/01058/FULH | 2025 | Refused | Erection of single-storey ground floor rear extension, the addition of external insulation, re-rendering and replacement windows to all facades, together wit... 10 Denmark Street Watford WD17 4RA |
| 24/01073/HPD | 2025 | Approved | The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 6m for which the maximum height would be 3.3m... 159 Sheepcot Lane Watford WD25 0ED |
| 25/00029/HPD | 2025 | Approved | The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 7.70m for which the maximum height would be 2... 147 Cassiobury Drive Watford WD17 3AH |
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
- Two-storey rear extension 0%, 40 decided
- Wraparound extension 0%, 13 decided
- Side extension 27%, 37 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