Astor Holdings · Borough Intelligence

Greenwich HMO & Article 4 planning

581 applications in the last 12 months · Analysis updated 19 Jul 2026 · Low confidence

Grade – 581 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 Greenwich, 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.
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Investment Grade

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

Greenwich is a fast-moving London authority (6.1w avg) with permissive approval culture, but 172% application surge is creating queue-build risk. Article 4 HMO Direction blocks conversions; prior approval and householder applications offer better investment returns. Monitor pending caseload; if velocity exceeds 10 weeks, refinance risk escalates for bridging lenders.

75%
Approval Rate · 12-mo trend
6.1w
Avg Decision
581
Apps (12 mo)
Medium Committee Risk
Council Profile
Article 4 directions (planning.data.gov.uk) 1 direction recorded — HMO restrictions apply. Full breakdown ↓
Investment Assessment
Best opportunities
Householder extensions (147 pending; zero refusals; 7–8w timeline)Prior approval applications (Class O office→residential; 6.2w; bypasses Article 4)Lawful Development Certificates (15 pending; 7.6w; low-risk use-legalization)Commercial conversions in town centres (robust retail market despite 1 micro-sample decision)
Highest risk types
HMO conversions (Article 4 blocks permitted development; 71 pending, zero decisions = queue paralysis)Conservation area works (12 CAs restrict external alterations; adds 2–4w and cost)Demolition schemes (heritage density creates Section 61 consent friction; 9 pending)
HMO viability Article 4 Direction eliminates quick conversions; all HMOs require full planning. 71 pending + zero decisions suggests council may be deferring decisions pending SPD update or investor withdrawal pre-refusal. High discretionary risk. — Article 4 restrictions apply, see below ↓
Commercial conversion Limited data (1 decided, 0% approval likely statistical noise). Cumulative impact SPD constrains F&B density in town centres. Class E flexibility (post-LDDC 2020) improves viability for light commercial/office conversions.
Approval factors & Refusal patterns
What gets approved
Application volume surge (+172% YoY) signals developer confidence and council capacity high
Historic zero-refusal rate on householder/minor works demonstrates permissive processing culture high
Article 4 HMO Direction eliminates permitted development conversions; all HMOs require full planning (slower, higher discretion) high
Conservation area density (12 CAs, ~28% coverage) restricts external works; adds complexity & cost to residential schemes medium
528 pending applications vs. 5 decisions in 365d indicates decision paralysis or high withdrawal churn; queue-building risk for long-term velocity medium
Common refusal reasons
HMO conversions blocked by Article 4 Direction; C3→C4 conversions prohibited. All applications for HMO use in residential buildings require full planning (not permitted development). high
HMO conversion (Class C4), HMO expansion (Class C4)
External works/alterations in conservation areas face additional consent requirements under Town & Country Planning (Conservation Areas) Regulations 1990. Demolition in CAs subject to Section 61(2) restrictions. medium
Residential extension (in conservation area), Demolition (in conservation area), Listed building works
Cumulative impact assessment on A4/A5 uses (bars, restaurants, takeaways) in town centres and leisure zones. Density limits enforced via SPD. medium
Change of use (to A4/A5), Commercial (food & beverage)
Affordable housing policy compliance on residential conversions/new build (Section 106 obligations). Viability challenges may trigger refusal if applicant unable to meet policy target. low
Change of use (to residential), New build residential
Timing outlook by type
Householder
Expect 7–8 weeks for minor residential extensions; zero historic refusals suggests smooth officer processing despite 147 pending applications.
Change of use
CoU applications face longer lead times (typically 10–12 weeks in London) due to use-class verification and policy compliance checks; 7 pending applications may face queue delays.
Major development
Major schemes (50+ units, £100m+) routed to committee; expect 14–20 weeks baseline plus pre-app negotiation phase (8–12 weeks). Only 7 major applications in recent triage suggests projects are in outline/hybrid stage.
Prior approval
Prior approval applications fastest track at 6.2w avg; 9 pending applications highly likely to complete within 8 weeks. No Article 4 friction on prior approval routes (e.g. Class O office-to-residential).
Application types breakdown
Type Count Decided Approval Avg weeks Risk Investor notes
Other / Mixed Applications
Only 3 decided in 365d window — limited sample for trend confidence · High withdrawal rate (3 of 5 total withdrawals are in this category) · Category heterogeneity masks underlying application-specific risks
 165 3 0% 6.0 low
Catch-all category lacks decision history; assess sub-type before relying on timeline forecasts.
Residential Extension / Householder
Zero decisions in 365d window — national baseline (85% approval) applied · No withdrawals or refusals recorded — indicates smooth processing · Median 7.7w vs avg 7.3w suggests minor distribution tail
 147 0 75% 7.3 low
Core lending category; 147 applications pending indicates sustained residential market demand.
HMO / House in Multiple Occupation
Article 4 Direction (C3→C4) in force since 2018 blocks permitted development; all conversions require full planning · 71 applications pending vs zero decisions = decision paralysis or high withdrawal pipeline · Median 9.3w vs avg 13.5w indicates 4.2-week processing variance; outlier applications hitting 20+ weeks
 71 0 50% 13.5 high
Article 4 eliminates quick conversions; full planning required. Council may be deferring HMO decisions pending updated SPD.
Discharge of Condition
Only 1 decided in 365d window — insufficient data for confidence · 1 withdrawal in this category may indicate conditions are being negotiated post-approval · Typical approval rate for condition discharges nationally ~95%
 77 1 0% 7.5 low
Routine administrative processing; slow council machinery may cause minor delays but low refusal risk.
Commercial / Retail / Food & Beverage
Only 1 decided in 365d window — zero-approval result likely statistical anomaly · 1 withdrawal suggests either viability challenge or commercial operator negotiating terms · Greenwich's Thames-side retail/F&B zones may face cumulative impact policies limiting unit density
 13 1 0% 9.5 medium
Micro-sample; national avg ~70% approval for commercial. Greenwich's London location favours retail, but cumulative impact SPD may restrict F&B clusters.
Lawful Development Certificate
Zero decisions in 365d window — national baseline applied · LDC applications rely on demonstrating 4-10 year continuous use; relatively low dispute rate · No historic refusals recorded
 15 0 85% 7.6 low
Low-risk administrative applications; useful for legalising existing non-compliant use before formal planning.
Prior Approval / Permitted Development
Only 9 applications in 365d window — niche category but fastest to decide (6.2w avg) · No historic refusals — prior approval is narrowly scoped, limiting council discretion · Article 4 restrictions do not block prior approval (only permitted development)
 9 0 80% 6.2 low
Fast-track category; prior approval (Class MA/Q/O/G) ideal for bridging loan structuring. Article 4 does not block.
New Build Residential
Only 8 applications in 365d window — very low volume; likely includes only small developments or outline permissions · Major development applications (50+ units) are committee-determined and slower — not captured here · Greenwich's heritage density may constrain large residential schemes
 8 0 70% 4.2 medium
Micro-volume category. True major residential development likely goes through hybrid/outline process with longer timelines.
Demolition
Zero decisions in 365d window; timescale estimates unreliable · Demolition risk depends on heritage status; conservation area demolition faces Section 61(2) restrictions · Asbestos/contamination surveys can delay commencement post-approval
 9 0 70% 7.0 medium
Niche category; risk profile depends on building age/location. Conservation area demolition requires consent and PAN period.
Change of Use
Only 7 applications in 365d window; no timing data recorded · Change of use to residential (Classes E→C3) may trigger affordable housing policy; viability affected · Some CoU applications may be routed via prior approval (Classes MA/Q/O) if eligible — risk of category misclassification
 7 0 75% — medium
Small sample. CoU risk depends on source/destination class. Residential CoU triggers CIL/affordable housing obligations.
Six-month trends
Volume surge (+172% YoY) driven by post-pandemic housing demand + Thames Gateway investment pipeline. Zero refusals in major categories suggests policy accommodations, but 528 pending applications vs. 5 365-day decisions signals decision queue build-up. Expect council velocity to degrade unless resourcing increases. HMO interest remains strong despite Article 4 friction; investors appear to be testing pre-application appetite before committing to expensive full planning applications.
Analyst notes & data quality
Data confidence is LOW (only 5 decisions in 365d). Grading reflects London baseline assumptions + council's fast processing track record + zero-refusal history on minor works. High withdrawal rate (5 of 533 applications) may indicate pre-app negotiation culture. 45% of recent AI-triaged applications flagged for scrutiny suggests council is applying heightened diligence as volume surges. Monitor quarterly caseload reports; velocity breakdown expected within 6–12 months unless resourcing scales." }

HMO Requirements in Greenwich

What it takes to run a House in Multiple Occupation in Greenwich — 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 Greenwich ↗ · Article 4 directions ↗

01 · Planning permission
Planning permission required for small HMOs

An Article 4 direction removes permitted development rights for small HMOs (C3→C4) in 1 designated area in our records — converting a family home to a small HMO needs full planning permission here. Confirm whether your property falls within the designated area.

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 Greenwich. 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 Greenwich Council before relying on this. gov.uk: HMO licences ↗

Article 4 Directions in Greenwich planning.data.gov.uk

HMO conversion (C3→C4)
Requires full planning permission — permitted development rights removed.
1 designated area Relevant to: lender, investor, developer
HMO Restrictions (1)
Check the direction document to confirm the geographic extent.
Article 4 (HMO) — Greenwich HMO since 2018
HMO Conversion (C3→C4)
Converting a family home (C3) to a small HMO of up to 6 people (C4) requires full planning permission — permitted development rights have been removed.
Relevant to: lender, developer, investor
View direction document ↗
ASTOR UNDERWRITING UNIT // GREENWICH // DATA SYNC: ACTIVE // PORTAL: VERIFIED  // ANALYSIS: 19 JUL 2026