First Floor Flat 16 Coniston Close London N20 0QL Data via plota.co.uk
Proposal
Roof extension including 1no. rear dormer window and 2no. front facing and 2no. side facing rooflights Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 22 Nov 2026 and 2 Dec 2026, from Barnet's recent extensions.
Documents 4
Statements & assessments 1
Plans & drawings 1
Application forms 2
Site constraints 6
Checked on 10 October 2026. 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 February 2015, the latest held for this property. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 11 of the 56-day target. Barnet usually decides extensions by day 52.
Plota live figures for extensions decided by Barnet in the last twelve months, from validation. Barnet decision record →
Public comments
No public comments yet.
Last counted 17 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15276774
- Planning Portal ref
- PP-15276774
- Comments by
- 5 Nov 2026
- Site or press notice
- 15 Oct 2026
- Statutory expiry
- 3 Dec 2026
Historical activity at this location
12 nearby applications on record - archival context, not part of the live application.
Nearby activity
Barnet is faster than most councils at deciding householder applications, ranking #42 out of 296. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Barnet is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.
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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First Floor Flat 16 Coniston Close London N20 0QL
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Comments are open until 5 Nov 2026