The design of a nursing home small square should consider the specific needs of the elderly residents, including accessibility, safety, comfort, and social interaction. Key elements include wide, level pathways for wheelchairs and walkers, non-slip surfaces, comfortable seating areas, and spaces for social activities and physical exercises. Landscape design should also incorporate natural elements such as trees and shrubs to create a soothing environment. Accessibility features like ramps and railings should be included to ensure ease of movement for all residents.