Puzz 3D was a line of three-dimensional architectural puzzles produced by Milton Bradley (Hasbro). They released the Seven Dwarfs cottage in the 1990s. The base measures 18 x 27 cm; the cottage is about 17 cm high. There's a total of 96 foam pieces, including a Snow White figure and the dwarfs..
Images and additional information courtesy of Dirk at HET Verzameloord.