Woodfield Investments has started construction on a 243-unit apartment complex in uptown Charlotte, across South Graham Street from BB&T Ballpark. The Charlotte Business Journal reported last year that Woodfield was planning the project on a 2-acre property on South Graham Street between West Third Street and West Martin Luther King Jr. Boulevard. Prudential Real Estate Investors is Woodfield's capital partner on the development, and in May, a company managed by Prudential purchased the site…