Portsmouth — 1 active Article 4 direction (HMO-specific) in our records; verify current status with council.
Profile
Coastal unitary authority with mixed Victorian terraces, post-war stock and modern residential; moderate density.
Planning
One HMO-related Article 4 direction in our records; approval climate and refusal patterns unknown — contact Portsmouth City Council to confirm scope and currency.
Deal angle
Single A4 direction suggests targeted HMO control, but thin activity record and incomplete coverage make bridging/HMO read unreliable without council verification.
ASTOR UNDERWRITING UNIT // AI SYNTHESIS // VERIFY WITH COUNCIL BEFORE ACTING
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Map Article 4 zones (oxblood = HMO-related) · application pins · click for detail
1 Article 4 direction recorded for Portsmouth, 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
Insufficient data for portsmouth (0 apps, 0 decided).
Approval Rate · 12-mo trend
Council Profile
Planning stance
Unknown — insufficient data
Decision speed
Unknown
Article 4 directions (planning.data.gov.uk)
1 direction recorded — HMO restrictions apply.
Full breakdown ↓
Investment Assessment
HMO viability
Unknown — see Article 4 status
— Article 4 restrictions apply, see below ↓
Commercial conversion
Unknown
Timing outlook by type
Householder
Data unavailable
Change of use
Data unavailable
Major development
Data unavailable
Prior approval
Data unavailable
Analyst notes & data quality
Run after more applications have been scraped and decided.
Article 4 Directions 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) — Portsmouth HMO
since 2011
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
ASTOR UNDERWRITING UNIT // PORTSMOUTH // DATA SYNC: ACTIVE // PORTAL: VERIFIED
// ANALYSIS: 07 JUN 2026