|Description||Double naves standing side by side and separated by a common wall|
A Double church, or twin church, is a church design found in Byzantine architecture. The double church design of the Üçayak Byzantine Church features double naves standing side by side and separated by a common wall. The twin church design at Üçayak has two naves each with a separate semi-circular apse. Each apse includes a rectangular bay in front of it.