Astor Holdings · Borough Intelligence

City of London HMO & Article 4 planning

1180 applications in the last 12 months · Analysis updated 19 Jul 2026 · High confidence

Grade – 1180 apps (12 mo)
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Map Article 4 zones (oxblood = HMO-related) · application pins · click for detail
1 Article 4 direction recorded for City of London, but their polygon geometry isn't published on planning.data.gov.uk yet — the directions below are real (sourced from the metadata feed) and only the map overlay is empty. Coverage will fill in as the LPA uploads boundary data.
Open full map ↗

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Investment Grade

A: select with confidence · B: selectable with discipline · C: case-by-case · D: avoid unless exceptional

City of London is a rare high-approval, high-heritage environment (97% approval vs 75% national) with fast commercial consent (13w median) but severe policy gatekeeping on residential form-factor (CoU 22w, householder 75%). Institutional investors should target commercial/demolition/HMO pathways; residential conversions require 5-month timelines and pre-app negotiation. Recent 90-day backlog (27.8w) creates bridging duration risk.

97%
Approval Rate · 12-mo trend
12.7w
Avg Decision
1180
Apps (12 mo)
Council Profile
Planning stance Permissive; 97% approval and pro-development stance balanced against strict heritage/character enforcement in scheme design.
Decision speed Medium
Conservation areas 6.4% of applications are listed building or heritage-related. City's historic fabric strictly protected; external alteration heavily scrutinized. Pre-app consultation essential.
Key priorities
commercial/mixed-use growthheritage preservation and listed building stewardshipstreet-level public realm and retail continuity
Article 4 directions (planning.data.gov.uk) 1 direction recorded — restrictions apply. Full breakdown ↓
Investment Assessment
Approval factors & Refusal patterns
What gets approved
high approval rate (97% vs ~75% national baseline) high
strong commercial/retail approval (96%) and demolition (100%) consent certainty high
HMO approval rate 96% with no Article 4 enforcement noted high
recent 90-day velocity spike to 27.8w creating decision-time risk despite high approval high
Change of Use 22w median (longest type) and householder extension 75% approval indicate residential form-factor friction medium
Common refusal reasons
Change of Use policy gatekeeping; CoU to residential likely triggers local plan and SPD friction. low
change_of_use
Householder/residential extension likely denied on heritage character or street-scene grounds given 75% approval. low
householder_extension
Advertisement/Signage: 1 refusal in 54 decisions indicates high-contrast design or brand-prominence friction. low
advertisement_signage
Timing outlook by type
Application types breakdown
Type Count Decided Approval Avg weeks Risk Investor notes
Other
minimal refusal risk · consistent approval trajectory
 704 483 98% 12.2 low
Largest application cohort; 98% approval signals permissive environment for diverse schemes.
Commercial / Retail / Food & Beverage
0 refusals in 50 decisions · 2 withdrawals suggest operator negotiation
 83 50 96% 13.3 low
Strong commercial approval; 13.3w median suitable for bridging. Mixed-use operators see robust consent pipeline.
Listed Building / Heritage
high volume reflects City's heritage density · design scrutiny may extend timelines
 64 48 98% 13.1 low
98% approval despite heritage burden; officer pre-app strongly recommended before submission.
HMO / House in Multiple Occupation
median 9w vs avg 14.4w indicates outlier delays · only 23 decided (small sample)
 46 23 96% 14.4 low
96% approval; low sample size. Rapid median suggests front-loaded decisions; tail risk on complex schemes.
Change of Use
22w avg decision time — longest type · median 23.4w signals consistent delay · 1 refusal indicates policy friction
 28 22 95% 22.0 medium
Slowest consent type; CoU to residential highly policy-gated. Budget 5+ months pre-exchange.
Discharge of Condition
0 refusals, 0 withdrawals
 121 80 100% 12.6 low
100% approval; routine admin. Negligible risk for condition-release deals.
Demolition
100% approval; no refusals
 37 26 100% 10.4 low
Fast demolition consent (10.4w); City's pro-development stance evident. Suitable for structured demolition timelines.
Advertisement / Signage
1 refusal in 54 decisions · 3 withdrawals
 80 54 93% 13.4 low
93% approval; heritage/conservation overlay typical. Design compliance key; 13.4w typical.
New Build Commercial / Industrial
100% approval · small sample (18 decided)
 23 18 100% 12.5 low
100% approval for commercial builds aligns with City's pro-growth stance. Small sample; monitor emerging trends.
Residential Extension / Householder
lowest approval rate (75%) · 2 withdrawals from 11 apps
 11 8 75% 12.7 medium
Only 8 decided; minimal residential extension pipeline. City prioritizes commercial/mixed-use; extensions face heritage/character friction.
Six-month trends
Volume stable (+2% YoY); approval rate improved 1pp to 97%. HMO approval declined 4pp (likely sample noise at 23 decided), but remains solid at 96%. Most active EC1A-EC4Y corridor shows consistent commercial/mixed-use triage. Recent 90-day spike to 27.8w suggests staffing or summer backlog; monitor Q4 recovery.
Analyst notes & data quality
City of London shows textbook high-approval, pro-development environment masked by decision-time volatility. 97% approval is exceptional; commercial and demolition pathways are gold-standard. HMO viability strong. However, 90-day spike to 27.8w is material risk for short-term bridging; Change of Use (22w median) and householder extension (75% approval) reveal residential friction. No Article 4 enforcement or refusal spike noted. Recommend: target commercial/mixed-use/demolition for fast certainty; ring-fence 6-8w contingency for major schemes; pre-app mandatory for CoU and listed building works.

HMO Requirements in City of London

What it takes to run a House in Multiple Occupation in City of London — whether you need planning permission, the licence the property must hold, and the statutory minimum room sizes. Verify current details with the council before committing.

Full guides: HMO licensing in City of London ↗ · Article 4 directions ↗

01 · Planning permission
No HMO Article 4 in our records

No HMO Article 4 direction in our records for this borough. Where no direction applies, converting a home to a small HMO (C4, up to six occupants) is usually permitted development — but coverage can be incomplete, so verify with the council before relying on this.

See the full Article 4 picture below ↓
02 · Licence to operate
Mandatory HMO licence National
5 or more occupants forming 2 or more separate households

Any HMO occupied by five or more people making up two or more separate households (sharing a kitchen, bathroom or toilet) must hold a mandatory HMO licence. This applies in every council in England, regardless of the number of storeys.

No Additional or Selective licensing scheme in our records for City of London. Many boroughs operate schemes that extend licensing to smaller HMOs or all rented homes, and these change on five-year cycles — check the council's current designation via the gov.uk licence finder ↗.
03 · Minimum room sizes
One person aged over 10 6.51 m²
Two people aged over 10 10.22 m²
One person aged under 10 4.64 m²
Any sleeping room ≥ 4.64 m²
Kitchen, bathroom & WC standards

Licensed HMOs must provide adequate, well-located cooking, washing and toilet facilities for the number of occupants, plus safe gas/electrics, working fire detection and proper waste storage. The exact ratios (occupants per bathroom, per WC, kitchen size) are set by each council in its own HMO amenity standards — confirm the figures with the borough before committing to a scheme.

Minimum room sizes and the mandatory-licensing threshold are national law (Licensing of Houses in Multiple Occupation (Mandatory Conditions of Licences) (England) Regulations 2018), sourced under the Open Government Licence v3 — they apply in every council. Licensing designations shown are those in our records; verify the current position and exact amenity standards with City of London Council before relying on this. gov.uk: HMO licences ↗

Article 4 Directions in City of London planning.data.gov.uk

– No major restrictions identified from available data.
Other Restrictions (1)
Check the direction document to confirm the geographic extent.
ASTOR UNDERWRITING UNIT // CITY OF LONDON // DATA SYNC: ACTIVE // PORTAL: VERIFIED  // ANALYSIS: 19 JUL 2026