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.
72% of the 32 two-storey extensions Lambeth decided between May 2026 and October 2026 were approved; half were decided within 56 days. Plan Forecast, 5 November 2026.
Time to decide: half were decided within 56 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.
Brixton Road London
ApprovedVariation of Conditions 3 (Demolition plans) and 5 (Basement impact assessment) of planning permission 21/01127/FUL (Demolition and redevelopment of 1 - 9 Dorrell Place together with change of use of upper floors of 452 - 456 Brixton Road and basement and first floors of 11 Dorrell Place with restoration and repair works to retained facades and two storey side extension to 11 Dorrell Place to provide a 96 bedroom hotel in a part two, part three, part five storey building (Use Class C1), retention of front facade and refurbishment of existing retail unit (Use Class E(a)) at basement and ground floor levels at 452 - 456 Brixton Road and installation of new shopfronts at ground floor level, retention of existing public house (sui generis)) at basement and ground floor levels at 11 Dorrell Place and associated cycle parking, plant, refuse store and landscaping works.) Granted on 03.01.2024. Amendment sought: Wording of Condition 3 - Demolition plans Wording of Condition 5 - Basement impact assessment
Decided 3 November 2026 25/03931/VOC
Sydenham Place London
ApprovedRedevelopment of former commercial unit (Use Class E) to provide a part-existing/part new-build two-storey, four-bed dwelling (Use Class C3) with the provision of a front amenity courtyard, rear garden and refuse/cycle storage.
Decided 23 October 2026 26/02030/FUL
Hilldown Road London
ApprovedErection of a first floor rear extension.
Decided 14 October 2026 26/02437/FUL
By ward in Lambeth
Approval rates differ across a council. These are every ward we hold enough decisions for.
- Waterloo & South Bank 86%
- Herne Hill & Loughborough Junction 84%
- Clapham Town 80%
- Brixton Acre Lane 83%
- Streatham Common & Vale 68%
- West Dulwich 73%
- Clapham Common & Abbeville 90%
- Knight's Hill 67%
- Streatham St Leonard's 87%
- Clapham East 92%
- Stockwell West & Larkhall 60%
- Kennington 72%
- Brixton Rush Common 77%
- Gipsy Hill 70%
Before you apply
- Do I need planning permission for a two-storey extension?
- Do I need Building Regulations approval for a two-storey extension?
Free check
Check your extension
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 two-storey extensions does Lambeth approve?
72% were approved, over 32 decisions that went one way or the other. Lambeth's figure across all types of work is drawn from 902 decisions.
How many two-storey extensions has Lambeth decided?
32 that went one way or the other, from May 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.