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.
91% of the 32 garden rooms and outbuildings Lambeth decided between June 2026 and October 2026 were approved; half were decided within 63 days. Plan Forecast, 5 November 2026.
Time to decide: half were decided within 63 days, counted from the day the application was valid (or received, where the register gives no valid date) over the 32 decisions with both dates.
Recent decisions
Real decisions, newest first. Addresses are reduced to the street here; the council publishes them in full on its own register.
Becondale Road London
ApprovedErection of single storey outbuilding in rear garden with a green roof, associated raised patio/terrace and landscaping works - Part retrospective.
Decided 29 October 2026 26/01896/FUL
Kennington Road London
ApprovedReplacement of the existing garage door with a new timber entrance door and window to facilitate the use of the existing outbuilding as ancillary accommodation to 335 Kennington Road.
Decided 23 October 2026 26/02407/FUL
Hartington Road London
ApprovedErection of a single storey outbuilding within the rear garden.
Decided 6 October 2026 26/01532/FUL
By ward in Lambeth
Approval rates differ across a council. These are every ward we hold enough decisions for.
- Waterloo & South Bank 81%
- Clapham Town 78%
- Herne Hill & Loughborough Junction 87%
- Brixton Acre Lane 84%
- Clapham East 91%
- Knight's Hill 68%
- Streatham St Leonard's 84%
- Stockwell West & Larkhall 61%
- West Dulwich 68%
- Streatham Common & Vale 60%
Before you apply
- Do I need planning permission for a garden room?
- Do I need Building Regulations approval for a garden room?
- Do I need planning permission for a shed, garden room or outbuilding?
- Do I need Building Regulations approval for a shed, garden room or outbuilding?
Free check
Check your building in the garden
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.
Other work in Lambeth
Questions people ask
What percentage of garden rooms and outbuildings does Lambeth approve?
91% were approved, over 32 decisions that went one way or the other. Lambeth's figure across all types of work is drawn from 740 decisions.
How many garden rooms and outbuildings has Lambeth decided?
32 that went one way or the other, from June 2026 to October 2026.
Get the forecast for your address
The figures above are the council. A forecast is your postcode: the same rate, the time a decision takes, and what happened on nearby streets. Free, and we email it to you.