Eustis EUSTIS COMMERCIAL HISTORIC DISTRICT Roughly Lake Eustis, McDonald Avenue, Grove Street, Orange Avenue. The Eustis Commercial Historic District includes portions of six city blocks and a public park in downtown Eustis. The district is located within the original town plat, and was the commercial center for the early community and through the period of 1881-1955. The district contains buildings in the Neo-Classical, Mediterranean Revival, Renaissance Revival, and Italianate styles of architecture. .Private, Public-local. N.R. 2005.