Is there a problem with concrete patio that's next to the house and poured above the house's foundation?

We’re currently installing a patio. The contractor has laid it out in a way where the patio will be against siding, and will be above the foundation. You can see on the picture below the dirt base for the patio, and how close it is to an electrical box, a water tap, and the red line / plain pencil line against the siding. I’m not in love with this — but is it just me? Is this generally accepted concrete practice? Thank you for any input!