To unlock this achievement, you must build each of the buildings in Cramton:
- General Store ($50)
- Tavern ($1,000)
- Shipyard ($2,000)
- Farm ($1,500)
- Mining Camp ($1,500)
Edit: According to comments below, the Storage Cache (and further Storage Improvements) are not required for the achievement to pop.
- Storage Cache ($1,000)
Note that after you build the Storage Cache, you'll have the option to build Storage Improvements. These are not required for the achievement.