Not all planning applications are created equal. The gap between the highest and lowest approval project type in Hertsmere is 17.5% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.
See your ward's approval rate and nearby planning decisions — free and instant.
| # | Type | Decisions | Approved | Refused | Rate |
|---|---|---|---|---|---|
| 1 | HMO | 25 | 25 | 0 | 100.0% |
| 2 | Flat Conversion | 27 | 27 | 0 | 100.0% |
| 3 | Front Extension | 160 | 152 | 8 | 95.0% |
| 4 | Wraparound Extension | 116 | 110 | 6 | 94.8% |
| 5 | Basement | 32 | 30 | 2 | 93.8% |
| 6 | Hip-to-Gable Conversion | 141 | 131 | 10 | 92.9% |
| 7 | Garage / Parking | 537 | 491 | 46 | 91.4% |
| 8 | Dormer | 501 | 457 | 44 | 91.2% |
| 9 | Change of Use (Residential) | 71 | 64 | 7 | 90.1% |
| 10 | Extension (General) | 75 | 67 | 8 | 89.3% |
| 11 | Outbuilding | 156 | 139 | 17 | 89.1% |
| 12 | Conservatory | 165 | 145 | 20 | 87.9% |
| 13 | Side Extension | 360 | 314 | 46 | 87.2% |
| 14 | Rear Extension | 1,283 | 1,111 | 172 | 86.6% |
| 15 | Loft Conversion | 95 | 79 | 16 | 83.2% |
| 16 | New Build | 97 | 80 | 17 | 82.5% |
A hmo application has a 100.0% approval rate. New Build? Just 82.5%.
Check your postcode to see what actually happens near your address.
506 planning applications in Hertsmere have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.
Check my postcode