The set includes Sheldon and Leonard's living room and includes items like a Rubik's Cube, a DNA strand, an itty bitty Lego Death Star and Leonard's board, said The Hollywood Reporter.
The proposal includes a trove of minifigures, Howard (complete with NES belt buckle), Penny, Raj (with Cinnamon), Amy, Bernadette, and of course Sheldon and Leonard.
The final set may differ from the prototype. Pricing and availability were not announced but the set likely will be released sometime in the next six-nine months.
The news came as part of Lego's announcement of its fall 2014 Ideas projects. With Ideas, Lego fans post their own models to the Lego Ideas website. Projects that get 10,000 supporters are guaranteed an official review by the company. This project was submitted by users Alatariel and GlenBricker.
The Big Bang Theory, the hit sitcom, is in its eighth season.