Otospongiosis is inherited as -
The exact etiology of otosclerosis is not known. In otosclerosis family history/heredity plays an important role. About 50% of patients of otosclerosis have a positive family history.

It is an automosal dominant conditionQ
Shows incomplete penetranceQ and variable expressionQ

Also Remember:      It may be associated with Vander Hoeve syndrome
Autosomal dominant
Autosomal recessive
X- linked dominant
X- linked recessive