In Calabasas, the building inspector generally checks permitted work before it gets covered, and the usual inspections include the foundation, the slab and any plumbing or electrical running underground. So anything under your floor stays open until that visit, and we pour after it, not before. If the inspector has to come inside a home you're living in, an adult over 18 has to be there, and the city recommends the contractor in charge come too so any problem gets talked through on the spot.
We're based in Calabasas and pour floors across the cities around it, including Thousand Oaks, Simi Valley, Agoura Hills, Oak Park and Westlake Village, along with Camarillo, Moorpark, Malibu, Topanga, Burbank and Santa Monica. A lot of what we see is additions, garage conversions and older houses getting a room built out, and if your city isn't on our list, call and ask.