Work is nearing completion on the extensive renovation and expansion of the historic Tammany Hall headquarters building at 44 Union Square. Designed by BKSK Architects and developed by Reading International (RDI) with Edifice Real Estate Partners as the owner’s representative, the project involved the addition of a multi-story space-frame dome atop the 90-year-old structure. CNY Group is in charge of construction at the Union Square site, which sits at the corner of East 17th Street and Park Avenue South. Reading International purchased the edifice 18 years ago and received a $57.5 million loan secured by Bank OZK and Fisher Brothers from Lionheart Strategic Management, LLC, an affiliate of Fisher Brothers.