This sign has been there since I was a child... but let's round up, give them the benefit of the doubt, and say this sign was erected in 2000.
That'd mean the building dates to 1700.
It sure doesn't look like it.
This town (Trinity, obvs) was first settled, SEASONALLY ONLY, by the Portuguese in 1501. The English took it over in the 1570s, and started using it seasonally. It wasn't until the early 1600s that people settled there, the first court was set up in 1615, so there weren't people living there year-round long before that.
I just don't believe that the marina represents the style of building that would've been erected prior to the 1800s.