Second floor office space available for rent November 1, 2025 in the beautiful and well-maintained 609 William St. Plaza between downtown Cobourg and HWY 401 Unit 1F: 158sqft. $695.00 A MONTH AND RENT IS ALL INCLUSIVE: property taxes, maintenance, building insurance, A/C, heat, hydro, parking, snow removal, and exterior security cameras only H.S.T. and Internet is added to rent! There is also 2-2pc baths on this level shared with other office spaces. Please note that there are 20 stairs to reach the second floor space.