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Halprin's wife, accomplished avant-garde dancer Anna Halprin, is a long-time collaborator, with whom he explored the common areas between choreography and the way users move through a public space. They are the parents of Daria Halprin, an American psychologist, author, dancer, and actress.
Halprin's work is marked by his attention to human scale, user experience, and the social impact of his designs, in the egalitarian tradition of Frederick Law Olmsted. Halprin was the creative force behind the interactive, 'playable' civic fountains most common in the 1970s, an amenity which continues to greatly contribute to the pedestrian social experience in Portland Oregon, where "Ira's Fountain" is loved and well-used, and which has been a chronic failure at the transient-ridden United Nations Plaza in San Francisco.
Recently many of Halprin's works have become the source of some controversy. Some have fallen victim to neglect, and are in states of disrepair. Critics argue his pieces have become dated and no longer reflect the direction their cities want to take. Budgetary constraints and the urge to "revitalize" threaten some of his projects. In response foundations have been set up to improve care for some of the sites and to try to preserve them in their original state.
He was the co-creator with his his wife, the dancer Ann Halprin, of the "RSVP Cycle", a creative methodology that can be applied broadly across all disciplines.