The peaceful introduction of
Islam in the early medieval era of Somalia's history brought Islamic architectural influences from
Arabia and
Persia, which stimulated a shift from
drystone and other related materials in construction to
coral stone,
sundried bricks, and the widespread use of
limestone in Somali architecture. Many of the new architectural designs such as
mosques were built on the ruins of older structures, a practice that would continue over and over again throughout the following centuries.Concordant with the ancient presence of Islam in the
Horn of Africa region, mosques in Somalia are some of the oldest on the entire continent. One architectural feature that made Somali mosques distinct from other mosques in Africa were
minarets.

For centuries, Arba Rukun (1269), the Friday mosque of
Merca (1609) and
Fakr ad-Din (1269) were, in fact, the only mosques in
East Africa to have minarets.
Fakr ad-Din, which dates back to the
Mogadishan Golden Age, was built with
marble and
coral stone and included a compact rectangular plan with a domed
mihrab axis. Glazed tiles were also used in the decoration of the mihrab, one of which bears a dated inscription. The
13th century Al Gami University consisted of a rectangular base with a large cylindrical tower architecturally unique in the
Islamic world.
Shrines to honor
Somali patriarchs and
matriarchs evolved from ancient Somali burial customs. In Southern Somalia the preferred medieval shrine architecture was the
Pillar tomb style while the North predominantly built structures consisting of
domes and square plans.