Speculative Masonry began in Greenwich in 1763 when Union Lodge was organized in Stamford; its jurisdiction included Stamford, Greenwich, Darien, Rye and Bedford, NY.  In 1780 the Lodge meeting place was moved from Stamford to  Knapp's Tavern in Horseneck (Greenwich.) Acacia Lodge #85 was instituted in 1858.  The first meeting place was on the upper floor of Cos Cob School on the Post Road almost opposite Cross Lane. The first officers were:  WM Luke Lockwood; SW Lewis Howe; JW Daniel Mead; Treas Kewis Reed; SD Joseph Horne; JD Isaac Lockwood; Tiler William White, the Secretary's name has been lost.

 In 1978 Acacia Lodge #85 began holding its meetings at the Darien Masonic Temple, 354 Post Road, Darien, CT and did so until January 2008 when Acacia Lodge #85 moved to the Byram Archibald Neighborhood Center, at 289 Delavan Avenue in the Byram Section of Greenwich.