Heron House 319-325 And 326-332 High Holborn And 26 And 44 Southampton Buildings City Of London London Data via plota.co.uk

26/05559/OBS - Application for obs to adj boroughs Approved

Proposal

Application under Section 73 of the Town and Country Planning Act 1990 (as amended) in relation to planning permission dated 23 December 2025, to vary condition 6 (access to terraces) to reflect amended configuration of terraces and balconies, condition 20 (basement plans) to reflect amended basement layouts, condition 31 (biodiversity gain plan), to reflect amended landscaping and planting, condition 57 (cycle parking), to amend long stay and short stay cycle parking provision, condition 67 (fire strategy) to reflect amended fire strategy, condition 73 (floor areas) to reflect amended floor areas and layout reconfiguration, condition 74 (approved plans), to include an extension of the proposed building to the south with the introduction of inset balconies, extension of basement level B2, reconfiguration of the proposed plant and the formation of a ground floor colonnade with new pedestrian route, and condition 76 (height of the building) to increase the height of the proposed building and accompanying deed of variation to the section 106 agreement to vary planning obligations. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
14 Aug 2026
✓
Approved
24 Aug 2026

Approved on 24 Aug 2026 · Last checked 2 Sept 2026

Site constraints 6

Article 4 direction
Residential extensions. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Hillingdon AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
National infrastructure project 1970 m away: M4 Junctions 3 to 12 Smart Motorway; Inside the Hillingdon built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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.

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Important details

Application type
Application for obs to adj boroughs
Received
14 Aug 2026
Validated
14 Aug 2026
Case officer
Show
Target decision
4 Sept 2026
Decision
No Comment
Decision date
24 Aug 2026
Applicant
Show
Agent
City of London

Public comments

No public comments yet.

Last counted 2 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Env. assessment
No
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions

Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Westminster decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026