Telecommunications cable management component housing assemblies that can be assembled without adhesive, and associated methods for assembling cable management component housings. The assembly includes a body and a lid that can be assembled together in a permanent or semi-permanent configuration. The body and the lid include complementary locking features. The lid is resiliently flexible to enable the lid to be assembled to the body. The body defines a cable management component housing volume that houses one or more cable management components, such as splitters, wave division multiplexors, and splices.