Extension planning approval in Basildon
Based on decisions in the last 5 years, as of 26 Jun 2026.
Of 343 extension planning applications decided by Basildon in the last 5 years, 91% 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 Basildon
- Rear extension : 91% approved (216 decided)
- Loft conversion : 87% approved (94 decided)
- Roof / fenestration : 93% approved (90 decided)
- Side extension : 94% approved (81 decided)
- Demolition : 84% approved (68 decided)
- Outbuilding / garden room : 81% approved (63 decided)
- Change of use : 74% approved (57 decided)
- Two-storey extension : 80% approved (50 decided)
Method
Approval rate = approved ÷ (approved + refused) over the public planning decisions we hold for Basildon, matched to a type of work from the application description. We lead with the last few years so the figure reflects how Basildon 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.