The cosmopolitan neighborhood of Echo Park is the threshold of urban diversity and suburbia. Echo Plex is a four unit complex with a 2000 S.F. storefront that extends below ground. The threshold from the urban chaos to the calm suburban lifestyle is signified with a concrete wall running the length of the site which is a literal barrier between the loud busy street and its adjacent courtyard. The calming interior courtyard acts as an extension of Echo Park which is directly across the street. Each unit’s core provides circulation while using materials to illuminate the interior spaces and contains the source for air circulation. Elements from each unit of the complex push through the wall barrier to visit the urban environment and pull in to connect with the calm courtyard.