Ricardo Daza is beyond dedicated to the Bogotá Chapter he himself launched in 2009 with two of his non-architect friends.
In four years the Chapter has helped hundreds of people over a dozen projects - all conducted in their own time after work, with the help of other volunteers and interns. It hasn't been easy, and when life calls, and key members have to pull away, a chapter confronts in another way the issue of sustainability.
How do the Bogotá folks do it? Find out below.