West Layton House, 48-50 St John Street, London, EC1M 4DG Data via plota.co.uk

P2026/2104/NMA - Non-Material Amendment VALIDATED

Proposal

Non-Material Amendment following a grant of planning permission: dated 10/04/2025 for ‘Refurbishment of existing office (Use Class E) building including relocation and replacement roof plant, replacement of stair enclosure and lift core, creation of a roof terrace, revision to the facade, ground, first, second and third floor infill extensions to the rear, creation of external terrace and plant enclosure at rear first floor, ground floor infill extension to under croft, enclosure of ground floor courtyard and associated works.’ Amendments seek updated front elevation to accommodate the relocated UKPN Substation entrance (from basement to ground floor); insertion of smoke shaft from basement to roof level; layout amendments to improve services, circulation, and the means of escape during a fire; removal of 1 (no.) accessible cycle parking space from ground floor level due to fire safety requirements; increase in number of long stay cycle parking spaces at lower ground floor level from 38 (no.) spaces to 45 (no.) spaces; omission of combined attenuation and rainwater harvesting tank in basement due to structural demolition risks and submission of landscaping details and amendment of Condition 17 (Landscaping) wording to a compliance condition in accordance with the landscaping proposals. Data via plota.co.uk

View original council record ↗

Application progress

Received
5 Aug 2026
Decision
Awaiting decision

This application is under consideration - no decision has been issued yet.

Site constraints 18

Heritage

Article 4 direction

Planning designations

Alexandra Palace viewing terrace to St Paul's CathedralAPA St John's Street medieval settlementAPA The Charterhouse Carthusian MonasteryBunhill & Clerkenwell Area Action PlanCAZCentral Activities ZoneCharterhouseCharterhouse SquareClerkenwell GreenCritical Drainage Group3_003Heathrow Safeguarding AreaIIILocal view from Archway RoadLocal view from St. John StreetLocal view from the AngelWithin 50m of

Constraints recorded by the council for this site. Documents on the council site ↗

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Important details

Council
Islington
Application type
Non-Material Amendment
Postcode
EC1M 4DG
Received
5 Aug 2026
Validated
5 Aug 2026
Ward
Bunhill
Case officer
Show
Target decision
1 Sept 2026
Applicant
Show
Agent
Peter Bovill

Consultation & key dates

Alt. reference
PP-15034989
Islington
Planning Authority Score
2.9/10
Poor
#237 of 296 councils
Relevant to this application:
Householder decisions

Islington is slower than most councils at deciding householder applications, ranking #260 out of 296. 53% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Islington decision performance
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #132 of 296
93%
Householder approved
Above avg (90%) #130 of 296
43%
Decided in 8 weeks
Below avg (63%) #260 of 296
53%
Extended time limit
Above avg (41%) #241 of 296
89%
Minor dwellings approved
499 decided (1-9 homes)
100%
Major dwellings approved
1 decided (10+ homes)
89%
Change of use approved
19 decided
1,488
Total decisions
167 refused in the year to March 2026