A modular crypt structure comprising a frame, a module insert defining a chamber and a closure panel and methods of constructing the same are disclosed. The chamber functions as a crypt module and is adapted to receive bodily remains or portions thereof. The chamber is closed by attaching a closure panel, such as a stone crypt front to the frame, thereby encapsulating bodily remains. The modular crypt structure may comprise a plurality of chambers, thereby providing a plurality of crypt modules, and the frame may comprise a plurality of horizontal bars and a plurality of vertical bars. A method of constructing a modular crypt structure comprises erecting a frame, providing at least one module insert, configuring the insert to define a chamber adapted to receive bodily remains, and closing the crypt module.