Yorkshire Building Society ← View details 105b Commercial Road, Portsmouth, EN PO1 1BQ +44 23 9280 8985 ybs.co.uk Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:30 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 12:00 pm Your comments * — Required information