Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 2,076 real decisions tell us about rear extension outcomes in Dartford.
See your ward's approval rate and nearby planning decisions — free and instant.
Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.
| # | Ward | Decisions | Approved | Rate |
|---|---|---|---|---|
| 1 | Longfield, New Barn & Southfleet | 6 | 6 | 100.0% |
| 2 | Joydens Wood | 7 | 6 | 85.7% |
| 3 | Heath | 9 | 7 | 77.8% |
A rear extension has a 100.0% approval rate in Longfield, New Barn & Southfleet but just 77.8% in Heath.
Check your postcode to see what actually happens near your address.
Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Dartford.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 346 | 93.1% |
| Hip-to-Gable Conversion | 127 | 92.1% |
| Outbuilding | 506 | 90.1% |
| Extension (General) | 248 | 89.9% |
| Side Extension | 1,012 | 89.1% |
| Wraparound Extension | 99 | 88.9% |
| Rear Extension | 2,076 | 88.3% |
| Garage / Parking | 1,897 | 87.6% |
| Dormer | 877 | 87.2% |
| New Build | 724 | 86.2% |
| Front Extension | 244 | 85.7% |
| Annex | 104 | 85.6% |
| Basement | 95 | 85.3% |
| Loft Conversion | 249 | 84.7% |
| Change of Use (Residential) | 450 | 74.9% |
| Flat Conversion | 30 | 70.0% |
| HMO | 73 | 69.9% |
242 rear extension applications in Dartford 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