The colony would have featured a hospital facility located in a grove of trees, a school, an arts center, and several residential pods. After six months, the next wave of colonists would have arrived at the planet.
Before any structures were built, however, the Crystalline Entity devastated the planet and destroyed all lifeforms, including plants, insects, and bacteria. Most of the colonists survived in a cave, but colonization was no longer possible. (TNG: "Silicon Avatar")