Purpose: This study explored the personalized and collective participation needs of people with acquired brain injury (ABI) living in a future shared community smart home. Methods: An action research study was conducted with 16 persons, seven with ABI, four caregivers and five rehabilitation or smart home healthcare providers. Twelve interviews and two focus groups were conducted, audiotaped, transcribed and analyzed for content. Results: Seventy personalized and 18 collective participation needs were reported related to daily and social activities. Personalized needs concerned interpersonal relationships, general organization of activities, leisure, housing, fitness and nutrition. Collective needs related mainly to housing, general organization of activities and nutrition. Conclusions: Personalized and collective participation needs of people with ABI planning to live in a community smart home are diverse and concern daily as well as social activities.Implications for RehabilitationTo meet participation needs of people with ABI, the design of smart homes must consider all categories of daily and social activities.Considering personalized and collective needs allowed identifying exclusive examples of each.As some persons with ABI had difficulty identifying their needs as well as accepting their limitations and the assistance required, rehabilitation professionals must be involved in needs identification.