12 Wimborne Avenue, Chislehurst, BR7 6RQ Data via plota.co.uk
Proposal
Two storey front extension, increase in ridge height, new front porch, part one/two storey rear extension, with rear access steps and elevational alterations Data via plota.co.uk
Application progress
Approved on 9 Feb 2026 · Delegated Decision · Last checked 10 Oct 2026
Documents 15
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 10
Application forms 1
Other documents 1
Site constraints 4
Checked on 2 November 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), 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.
Sales history 3
Last sold for £925,000 in March 2023. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in February 2022, 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
How this decision compares
Decided in 104 days from validation, 48 days slower than Bromley's median of 56 for extensions. Approved, as 78% of extensions here are.
Plota live figures for extensions decided by Bromley in the last twelve months, from validation. Bromley decision record →
Public comments
Last counted 10 Oct 2026
Consultation & key dates
- Comments by
- 28 Jan 2026
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Bromley ranks #143 out of 296 councils for householder decision speed. Bromley is also one of the strictest councils - it refuses more householder applications than almost any other, with only 79% approved vs 90% nationally.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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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12 Wimborne Avenue, Chislehurst, BR7 6RQ
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