1975年，瑞典的高齡化率超過14%，已經邁入「高齡社會」，失智症老人的照顧問題急速湧現。2000年時，瑞典已經有25,000位的失智症老人住在團體家屋裡，約佔失智症老人總數的25%。1994年，日本的高齡化率到14%，已邁入「高齡社會」，團體家屋才開始制度化；2008年底，團體家屋大增為9,000家之多。團體家屋具有家庭氣氛、自我時間以及專業照護的三大特點。照顧單元的規模，以小規模化、家庭化、個人化為原則。團體家屋可以獨立經營，也可與其他設施併設經營。其空間計畫，必須提供每位失智症老人一間「個人房」、一處團體使用的開放式共用空間，以及無障礙的共用衛浴設備、洗衣設備等。團體家屋的使用對象，以輕度到中度的失智症老人，生活可以自理、無暴力及自傷行為者為主。最近的團體家屋已適用於重度的失智症老人。增加人員配置是未來一定的趨勢，提升照顧服務員人數與失智症老人人數的比例，可以增進照顧服務品質。

Sweden has being identified as an aged society since her aging population had exceeded 14% of total population in 1975. The nursing problem of these dementia elders emerged as a society issue since then. In 2000, 25% of the dementia elder population in Sweden which means 25,000 of them were living in the Dementia Elder Group Home. In 1994, Dementia Elder Group Home in Japan were being institutionalized as the number of aging population had reached 14% and Japan was also being categorized as an aged society in the same year. Until the end of year 2008, the amount of Dementia Elder Group Home had a significance increase by adding up the number to 9,000. The operation of Dementia Elder Group Home has 3 distinguishing features: home atmosphere, individual schedule and professional caring. Furthermore, the operation of their nursing unit follows the 3 major principles: small-sized group controlling, family atmosphere creating and personalized care establishing. The management of Dementia Elder Group Home can be independently operated or joined with other facilities. On the other hand, the space program requirement of Dementia Elder Group Home is to provide every dementia elder a personal room, a group shared open space, a shared bathroom and laundry facilities. The target user of Dementia Elder Group Home is the dementia elder with low degree to medium degree of Senile Dementia; most of these elders are still able to cope with their own living without practicing any violence behavior toward themselves or toward the other people. So far until recent, some Dementia Elder Group Home is also available for the high degree of Senile Dementia. The increase of personnel number in Dementia Elder Group Home is the future trend for raising the ratio number of care worker to the number of dementia elder, so the quality of nursing service can be enhanced.