Share this article: Hemmer Begins $3.6 Million Renovation of Historic Building in Covington's Devou Park for Children's Home of Northern Kentucky Posted on Tuesday, July 29, 2014 in Press Releases, Office & Retail, Renovations & Additions. Paul Hemmer Company has begun extensive renovation of one of the region's most notable structures ‒ the Children’s Home of Northern Kentucky's administration building, perched high atop a hillside in Covington’s Devou Park. Files HemmerBegins$3 6MRenovationAtCHNK_07 14 (145 KB)