Singapore’s social problems arising from an aging society are fast becoming serious to the Nation. Singapore’s senior citizens form 8.7% of the current population and will reach 19% by 2030.Singapore’s Ministry of Health has projected that long-term residential care will grow rapidly. Its strategy to enhance the mental ecosystem is to provide more facilities and services to cater to the needs especially to the lower and medium income group of aging people with mental illness, their care-providers and caregivers. The effective planning, design and management of welfare residential facilities and support services are necessary, essential and urgent to meet rising need to move elderly into institutional home due to the lack of necessary family and extended family support and not necessarily for lack of Asian filial piety.The report on this study and the Post Occupancy Evaluation (POE) on the issues will provide beneficial feedbacks from behavioral issues and other related matters that can help in developing effective programs and meaningful built environments of welfare facilities maintenance in land-limited Singapore. The study also provides the understanding of the common features of facilities composition, room layouts and the constraint aspects of the selected welfare residence facilities under examination