Outbuilding / garden room planning approval in Harrow
Based on decisions in the last 5 years, as of 11 Jul 2023.
Of 28 outbuilding / garden room planning applications decided by Harrow in the last 5 years, 89% were approved. This is the council's track record for this kind of work. It is a useful gauge before you apply, not a guarantee for any one application.
Other work in Harrow
- Extension : 84% approved (247 decided)
- Rear extension : 84% approved (201 decided)
- Loft conversion : 83% approved (90 decided)
- Roof / fenestration : 80% approved (86 decided)
- Demolition : 86% approved (95 decided)
- Two-storey extension : 82% approved (61 decided)
- Side extension : 80% approved (56 decided)
- Porch : 90% approved (48 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Harrow, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Harrow decides today, with the longer record as context. A rate is only shown once there are enough decided applications for it to be reliable. We publish aggregate figures only, never an individual application or applicant name. Read the full method and limits.