This is a place on Dinotopia where expectant mothers about to lay their eggs and wait for their eggs to hatch. The eggs of the various dinosaurs are cared for. Only one is mentioned in the first book, but it makes sense that there would be more than this one, scattered around likely near or in settlements where groups of dinosaurs and humans life and work. The Hatchery is the home of the family of Sylvia Romano, a significant character in the series. The hatchery is notable for being the first human residence seen in the series, and is, in a sense, the starting point of the adventures of Arthur and Will Denison.
The Hatchery provides integrated living space for both humans and saurians. It has an incubation Chamber, nesting room and, most unusually a large pipe organ.