Post Office – Ballynahinch, Lisburn Street – Opening Hours & Branch Details Post Office is found in an ideal location on Lisburn Street, about a 0.03 mile drive south-west of the centre of Ballynahinch (by High Street and St Patricks Primary School). This branch is a terrific addition to the local businesses of Ballykine Upper, Ballymaglave North, Castlewellan, Hillsborough, Ballykine Lower, Downpatrick and Ballynahinch Town Centre. Doors are open here today (Friday) from 9:00 am to 5:30 pm. Here you will see the hours of operation, place of business address details and customer experience for Post Office Ballynahinch, Lisburn Street.