122 Horncastle Road, London, SE12 9LE Data via plota.co.uk
Proposal
Construction of a single storey rear extension at 122 Horncastle Road, London SE12 Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 17 Nov 2026, from Lewisham's recent extensions.
Documents 7
Statements & assessments 2
Plans & drawings 4
Application forms 1
Site constraints 4
Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.
Building
From the energy performance certificate lodged in May 2023, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 17 of the 56-day target. Lewisham usually decides extensions by day 56.
Plota live figures for extensions decided by Lewisham in the last twelve months, from validation. Lewisham decision record →
Public comments
No public comments yet.
Last counted 7 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15236623
- Planning Portal ref
- PP-15236623
- Neighbours
- 30 Sept 2026
- Consultation
- 30 Sept 2026
- Statutory expiry
- 17 Nov 2026
- Env. assessment
- No
Historical activity at this location
16 nearby applications on record - archival context, not part of the live application.
Nearby activity
Lewisham ranks #127 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (90%) than the national average (90%).
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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122 Horncastle Road, London, SE12 9LE
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