Frenchtown Harbor is a community of condos in Monroe Michigan offering an assortment of beautiful styles, varying sizes and prices to choose from. Frenchtown Harbor condos range in square footage around 1,600 square feet and in price from approximately $289,900 - $305,000. Development included not only the ground-up residential units, but the excavation, lining, and retaining of a 20ft deep marina with floating boat slips, walkways, and green spaces.