Good student HMO properties typically feature: proximity to universities (within 2-3 miles or good transport links), adequate parking or bike storage, modern amenities including fast broadband, spacious communal areas, and individual room security.

Large HMO properties require careful consideration of: mandatory HMO licensing in all areas, higher fire safety standards including potential sprinkler systems, more complex management needs, and substantial insurance costs.

Professional HMO properties typically offer: higher quality furnishings and decor, longer tenancy agreements (12+ months vs 9-10 months for students), quieter environments with professional tenants, and higher rent per room.

HMO planning permission issues include: Article 4 directions removing permitted development rights, requiring planning permission for C3 to C4 conversions, material change of use applications for large HMOs, and neighbor objections.

HMO safety requirements include: annual gas safety certificates, electrical installation testing every 5 years, portable appliance testing (PAT) for provided electrical items, fire safety measures including smoke/heat detectors and fire doors, and adequate means of escape.

Evaluate HMO conversion opportunities by assessing: local planning policy and Article 4 direction status, potential room yield and optimal layout configuration, structural suitability and conversion costs, and local rental demand.

HMO room size requirements vary by council but typically include: minimum 6.51 square meters for rooms housing one person, 10.22 square meters for rooms housing two people, adequate ceiling height, and sufficient natural light.

Choose between single-let and HMO strategies based on: local rental demand and yield comparisons (HMOs typically achieve 30-50% higher yields), your available time for management, experience level, and available capital.