This is not Lambeth's planning register. To look up or comment on a live application, use the council's own site: search Lambeth's register.
71% of the 96 applications for building work Lambeth decided since 6 September 2026 were approved; half were decided within 58 days. Plan Forecast, 4 November 2026.
Time to decide: half were decided within 58 days, counted from the day the application was valid (or received, where the register gives no valid date) over the 96 decisions with both dates.
Approval rates by type of work
- Loft conversion or dormer 66% of 41 decisions
- Rear extension 74% of 39 decisions
- Garden room or outbuilding too few to say 8 decisions
- Two-storey extension too few to say 5 decisions
- Side extension too few to say 3 decisions
Before you apply
Whether the commonest kinds of work in Lambeth need planning permission at all, from the law itself, rule by rule.
Free check
Check your project
Put a pin on your house, describe the work, and see it measured against each permitted development limit, with the clause it comes from. A guide, not a guarantee.
Where Lambeth stands
The government's own count, every kind of application together: a different question from the rates above, which are one kind of work at a time. Why the figures differ.
The long view
Recent decisions in Lambeth
Straight from the register. Addresses are reduced to the street here; the report you get names the property.
Wyvil Road London
ApprovedTemporary change of use of the basement and ground floor commercial units for use as a marketing suite (Sui generis) for a 4-year period.
Decided 30 October 2026 26/01474/FUL
Kennington Oval London
RefusedErection of 7no. residential units (Class C3) with associated cycle and refuse storage.
Decided 30 October 2026 26/02062/FUL
Streatham High Road London
RefusedPart retrospective application to regularise the unauthorised formation of EV charging facilities including closure of access from Streatham Common South to provide 4x EV charging spaces and installation of EV cabinet equipment, relocation of valet bay, relocation of offset fills and tank vents.
Decided 30 October 2026 26/02109/FUL
Questions people ask
What is Lambeth's planning approval rate?
71% of the 96 applications for building work Lambeth decided since 6 September 2026 were approved, counting those that went one way or the other. It differs by kind of work.
What percentage of loft conversion or dormer applications does Lambeth approve?
66% of loft conversion or dormer applications decided by Lambeth were approved, over 41 decisions.
How many planning decisions does Plan Forecast hold for Lambeth?
246 decided applications, from September 2026 to October 2026, read from Lambeth's own planning register.
Is this Lambeth's planning website?
No. Plan Forecast is independent of Lambeth: we count the decisions on its public planning register. To look up, track or comment on an application, use Lambeth's own register, at planning.lambeth.gov.uk.
Get the forecast for your address
These are Lambeth's figures as a whole. Put in your postcode and we will show you the rate for what you are planning, and the decisions on your own streets.
Figures are counts of published decisions, not planning advice. Every application is judged on its own merits. How these figures are made.