11. Emerson Elementary and Heritage Middle School share a common wall , but are separate schools. 12. Some houses share a common wall as a duplex unit. 13. The dwelling units must share a common wall or common floor / ceiling ." 14. Even in the mud houses along this road, Kalashnikov rifles are common wall hangings. 15. The cleverest is the common wall between the entry stair and the first bedroom. 16. For example, Common Wall Media artist Gospel Claws was featured on NPR, and Snake! 17. Records, and distributed in the United States by Sunset Alliance and Common Wall Media. 18. The houses are made of adobe and share common walls and most have flat roofs. 19. The apartments share a gabled roof and common walls . 20. The addition was not in perfect alignment with the original common wall , and protrudes east.