21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ Data via plota.co.uk
Proposal
Single storey rear extension (certificate of lawful development - proposed) Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicts a decision around 19 Oct 2026, from Southend's recent extensions.
Site constraints 1
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Southend - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
Decision outlook
Day 21 of the 56-day target. Southend usually decides extensions by day 56.
Plota live figures for extensions decided by Southend in the last twelve months, from validation. Southend decision record →
Public comments
No public comments yet.
Last counted 11 Sept 2026
Consultation & key dates
- Statutory expiry
- 19 Oct 2026
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Southend ranks #155 out of 296 councils for householder decision speed. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).
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21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ
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