DENVER — A South Carolina-based retail developer has added to its portfolio of properties in Denver’s River North neighborhood. The Denver Business Journal reports that Edens, based in Columbia, S.C., recently purchased three properties at 2628 Walnut St., 2600 Walnut St. and 2649 Walnut St., bringing its total properties in the area to 10. The portfolio encompasses 136,000 square feet. Two of the properties — 2649 and 2628 Walnut St. — were acquired at the end of 2018 from Associative Properties LLC, according to the DBJ. The third property — 2600 Walnut St. — was acquired last August. All told, Edens has invested more than $60 million in the RiNo area.