144 Sunningvale Avenue, Biggin Hill, Westerham, TN16 3TW Data via plota.co.uk
Proposal
Retention of wooden tree house structure (in an existing Hazelnut Tree) to rear of garden. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 26 Nov 2026, from Bromley's recent extensions.
Documents 4
Plans & drawings 3
Application forms 1
Site constraints 4
Checked on 6 October 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 2
Last sold for £285,000 in July 2010. 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 September 2009, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate
Every application in Bromley - and every UK council - as a live feed, an API, or a bulk CSV export.
Other new applications on this street
30B SUNNINGVALE AVENUE, BIGGIN HILL, WESTERHAM, TN16 3BU
Erection of a raised timber balcony with external staircase to the rear elevatio...
LAND ADJACENT TO 47, SUNNINGVALE AVENUE, BIGGIN HILL
Erection of 8 dwellings with associated access, parking and landscaping.
Nearby new applications
Greensleeves, Ricketts Hill Road, Tatsfield, Westerham, Surrey, TN16 2NG
Erection of a single storey rear extension (Certificate of Lawfulness (Proposed)...
51 & 53 The Grove, Biggin Hill, TN16 3TA
Demolition of existing dwellings and outbuildings at Nos. 51 and 53 The Grove, a...
32 GREENOAK RISE, BIGGIN HILL, WESTERHAM, TN16 3RL
T1 Mature Oak - Remove and plant replacement tree. SUBJECT TO TPO 633 (11.7.198...
Greensleeves, Ricketts Hill Road, Tatsfield, Westerham, Surrey, TN16 2NG
Application for Prior Approval of a proposed enlargement of a dwellinghouse by c...
Important details
Decision outlook
Day 8 of the 56-day target. Bromley usually decides extensions by day 56.
Plota live figures for extensions decided by Bromley in the last twelve months, from validation. Bromley decision record →
Public comments
No public comments yet.
Last counted 3 Oct 2026
Consultation & key dates
- Comments by
- 23 Oct 2026
Historical activity at this location
9 nearby applications on record - archival context, not part of the live application.
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.
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.
Track this application
144 Sunningvale Avenue, Biggin Hill, Westerham, TN16 3TW
Tracking this application
Not there in a minute? Check junk - especially Hotmail and Outlook.
Go to your dashboard →Sign in to view contact details
Applicant and case-officer names are hidden from public view for privacy. Create a free Plota account - or sign back in - and we'll show them, plus you get a dashboard for alerts and tracked applications.
Comments are open until 23 Oct 2026