Coverage Lambeth

Side extension planning permission in Lambeth: what actually gets approved

Decided by Lambeth between March 2026 and October 2026. Every figure here is a count of decisions on the council's own register — not a prediction about yours.

Side extensions decided by Lambeth

94%

of 34 decisions approved

Counting decisions that went one way or the other.

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94% of the 34 side extensions Lambeth decided between March 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 34 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.

Wolfington Road London

Approved

Erection of a single storey ground floor side extension with a courtyard.

Decided 5 October 2026 26/02623/FUL

Croxted Road London

Approved

The erection of a ground floor side extension, installation of 3 roof lights to the front and bifold doors to the rear.

Decided 24 September 2026 26/02194/FUL

Dalton Street London

Refused

Erection of a side extension to provide a cycle store for both residential and commercial use; alterations to the access arrangement for the upper-floor flats, including the installation of a new external metal staircase and the creation of a new upper-level entrance doorway; installation of perforated metal panels to provide privacy screening. [Retrospective]

Decided 10 September 2026 26/01906/FUL

By ward in Lambeth

Approval rates differ across a council. These are every ward we hold enough decisions for.

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Other work in Lambeth

Questions people ask

What percentage of side extensions does Lambeth approve?

94% were approved, over 34 decisions that went one way or the other. Lambeth's figure across all types of work is drawn from 1,237 decisions.

How many side extensions has Lambeth decided?

34 that went one way or the other, from March 2026 to October 2026.

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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.

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