Empty nest, smaller flat — overthinking this!

Designarch E Homes is tempting since it's ready to move. Kids have moved out, don't need such a big place anymore, and frankly, dealing with resale of existing property is headache enough. But ATS Homekraft Pious Orchards keeps popping up in searches. Is under-construction really worth the risk at my age? Honestly not sure I want the hassle of interiors now. Everyone talks about appreciation, but what about peace of mind? Lower maintenance is key. I need a good society, elevator is a must, and hospital proximity is important. Change my mind about ATS, or tell me if Designarch is the safer bet for someone wanting a manageable life.