Do I Need Planning Permission for a Log Cabin?
Usually NO
In most cases, NO — a log cabin in the garden is usually permitted development as an outbuilding, provided it meets the height and size limits.
Keep reading for the full rules.
A log cabin in the garden is treated as an outbuilding under Class E of the GPDO 2015. In most cases, you can build a log cabin in the rear or side garden without planning permission, provided it meets the standard outbuilding rules.
Permitted Development Rules by Region
Permitted Development Rules — England
- ✓A log cabin must be in the rear or side garden — not forward of the principal elevation.
- ✓If within 2 metres of the boundary: maximum height 2.5 metres.
- ✓If more than 2 metres from the boundary: maximum 4 metres (dual-pitched) or 3 metres (pent/flat roof).
- ✓All outbuildings combined must not cover more than 50% of the original garden.
- ✓Must not be used as a separate dwelling.
Size & Position Limits (England)
| Requirement | Limit / Rule |
|---|---|
| Max height (within 2m of boundary) | 2.5 metres |
| Max height (beyond 2m, dual-pitched) | 4 metres |
| Max height (beyond 2m, other roofs) | 3 metres |
| Max garden coverage | 50% of original garden |
| Use | Not as a separate dwelling |
When Do You Need Planning Permission?
Even if your project is usually permitted development, planning permission is required in these circumstances:
- ✗The cabin will be used as a separate dwelling.
- ✗It is forward of the principal elevation.
- ✗It exceeds the height limits.
- ✗Combined outbuildings cover more than 50% of the garden.
- ✗Your property is listed.
What Happens If You Build Without Permission?
Log cabins used as dwellings without planning permission are a common source of enforcement action. Always ensure the use is ancillary to the main house.
Enforcement notices: Your council can issue an enforcement notice requiring you to stop the work, remove it, or restore the land to its original condition. You have a right of appeal against an enforcement notice.
Retrospective applications: If you have already carried out work that required planning permission, you can submit a retrospective planning application. If approved, this regularises the work. If refused, you may be required to remove it.
Time limits: For dwelling houses, the council generally has 4 years to take enforcement action for most types of work. For breaches of planning conditions, the time limit is 10 years. There is no time limit for listed building enforcement.