The structure represents a village hut with a sloping roof and serves as a prototype for the various other buildings constructed during the Bengal Sultanate.

[5] The brick structure has 4 m (13 ft) thick walls and an octagon-shaped interior, which together minimize the size of squinches required.

[3][5] The mausoleum has a smoothly curved cornice, terracotta ornamentation on the walls, and engaged towers at the corners.

[2] Historian Perween Hasan writes that the architecture may have been inspired by the brick temples in pre-Islamic Bengal.

As Jalaluddin was the first native Muslim king of Bengal, he may have built the mausoleum in typical Bengali style, highlighting his roots.