The Collaborative International Dictionary of English v.0.48:

Tannery \Tan"ner*y\, n.; pl. Tanneries. [Cf. F. tannerie.]
   1. A place where the work of tanning is carried on.
      [1913 Webster]

   2. The art or process of tanning. [R.] --Carlyle.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tannery
    n 1: workplace where skins and hides are tanned

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "tannery":
   armory, arsenal, assembly line, assembly plant,
   atomic energy plant, bindery, boatyard, boilery, bookbindery,
   brewery, brickyard, cannery, creamery, dairy, defense plant,
   distillery, dockyard, factory, factory belt, factory district,
   feeder plant, flour mill, industrial park, industrial zone,
   main plant, manufactory, manufacturing plant,
   manufacturing quarter, mill, mint, munitions plant, oil refinery,
   packing house, plant, pottery, power plant, production line,
   push-button plant, refinery, sawmill, shipyard, subassembly plant,
   sugar refinery, winery, yard, yards