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cs:southwark:26/AP/1326

Full application at 12C Alleyn Road London Southwark SE21 8AL, Southwark. View planning documents, track the decision and get email alerts on updates.

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Construction of a rear extension, loft conversion, and the installation of a new window to side elevation, replacement windows and roof lights

26/AP/1326

Small
Full

12C Alleyn Road London Southwark SE21 8AL

Submitted8 May
Validated
Consultation
Target
Decided
7 weeks typical decision time in Southwark95% of full applications approved

This is a full planning application for a loft conversion at 12C Alleyn Road London Southwark SE21 8AL. Southwark has handled 1,045 applications of this type and approves nearly all of them, typically deciding them in 56 days. It was submitted on 8 May 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 90 applications across Dulwich Wood. We hold 485 applications in total for the SE21 postcode area.

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Application Details

Reference
26/AP/1326
Address
12C Alleyn Road London Southwark SE21 8AL
Postcode
SE21 8AL
Local Authority
Southwark
Application Type
Full
Scale / Size
Small
Decision Status
Undecided

Applicant & Agent

Planning Application Dates

Date Submitted
8 May 2026

Planning Decision

Publicity

Appeal

Additional Information

Coordinates
51.434204, -0.088596

Source: Southwark