1720–1740 Oak Avenue is a Class B multifamily condominium property known as Sienna Court, located in the heart of downtown Evanston, Illinois. The seven-story building was constructed in 2002 and contains approximately 156,851 square feet on a 2.71-acre site. The property includes residential condominium units with ground-floor office/retail condominium space, offering a mixed-use component in a dense, walkable urban setting. Sienna Court is situated just north of Church Street and benefits from exceptional access to public transportation, including the Davis Street Metra station and CTA Purple Line, both within walking distance. The property is surrounded by downtown Evanston’s retail, dining, and service amenities and is proximate to Northwestern University and Evanston’s lakefront. Building amenities include controlled access, a fitness center, courtyard area, and on-site parking. The location features strong pedestrian connectivity and a highly urban environment attractive to both residential tenants and commercial users seeking transit-oriented space.