The island, the appliances and the trench are three different budgets. This prices them separately, because bundling them is how a per-foot number stops meaning anything.
Covered outdoor kitchen with a bar counterNothing here is a quote. It is a planning range for this market, and the point of the breakdown is to show you which decisions move it rather than to hand you one figure.
The lines are grouped, and the groups are the point. The structure is priced against the published band on the cost page. Everything else sits in its own group with its own subtotal, so you can see what the appliance decisions cost against what the utility runs cost.
The last line is the permit, and it carries no figure because none could be verified. The jurisdiction selector changes which department is named beside it, which matters more in this metro than people expect.
What the calculator cannot price is your ground, your access and where your gas meter and panel happen to sit. Those are the three things that most often move a real quote, and they are what a site visit settles.
Send the address and roughly what you want. We come back with the same breakdown, filled in for your actual site.