When you give a builder specific details, they will give you an accurate price. That's why it's important to be specific on what type of building and features you're looking for.
Conversation
Your Project Sales Consultant will be giving you a call to go over the building details. Size, aesthetics, and functionality can change as you get new ideas after talking to a builder.
Other Costs
The builder will be quoting you on the building shell. If you have "other costs" in mind (excavation, electric, concrete, etc) make sure you ask your builder for referred contacts.