Cheers!
Cuchulainn's Irish Pub does have a great patio. A decent 16 draft selections that includes Flying Monkey's/Steam Whistle from the local brewery and a selections of Irish scotch and whiskys.
The structure though is quite historical as it was built in 1832 as a wedding present for John Burnharts daughter, each of his children received a home but this is the only one that survived. It is one of the Historical Designated building in the Village of Streetsville.
If you are in the area and feel like having a pint or 2, Cuchulainn's definitely worth the visit!