A badly decomposing body was found Sunday inside a Queens apartment, cops said.

The unidentified body was discovered around 3:30 p.m. by the building’s landlord during a wellness check in an apartment on Northern Boulevard near Browvale Lane in Little Neck, police said.

There were no clear signs of trauma, though the body was in such a state of decomposition that a cause of death couldn’t immediately be ruled, cops said.