John Taylor is the "House." He's built, however, more like a mansion: Taylor stands 6'11" and claims to weigh 500 lbs. Taylor is a defensive lineman for the Piranha, one of the most successful teams in the Gridiron Developmental Football League (GDFL); a minor league consisting of roughly 40 clubs, stretching from Pennsylvania to Florida.

http://www.whptv.com/content/localsports/story/John-Taylor-the-largest-player-in-football-histor/eh2KYiFdxUCfsLtOXLDOeQ.cspx

More on the House
http://sports.yahoo.com/blogs/nfl-shutdown-corner/hello-house-too-big-nfl-200948099--nfl.html