According to Spark Architects, its Homefarm part retirement home, part retiree-run urban farm concept would achieve not only these, but improved health and community spirit among Singapore seniors.

Many of the urban farm concepts featured in Gizmag are large outlandish blue-sky ideas. Some, however, are more realistically employable, like the Globe (hedron) rooftop fish farm. And others, like the Windowfarms indoor gardening system, actually become a reality. Though ambitious, Spark's Homefarm concept arguably falls into the employable category.

Spark says that its actual aim is to "generate discussion about the many potentials that can emerge from the mixing of two typically separate realms." Specifically, in this case, it's referencing the combination of accommodation and facilities for seniors with an urban farm. It notes the context that Singapore has a significantly aging population, growing city populations and imports over 90 percent of its food. The Homefarm concept, it says, addresses all of these issues.