Riverside, CA Permit Requirements: Deck & Patio Permits (2026)

California Building Code Section 105.2, adopted through Riverside Municipal Code Title 16, exempts decks that are not attached to the dwelling, are less than 30 inches above grade at any point, and do not serve a required exit. Any deck that is attached to the house (by ledger or flashing), any deck more than 30 inches above grade, and any deck serving as a required second-story means of egress requires a building permit with plan review, engineering (for attachments to the main structure and for footings), and inspections at footing, framing, and final stages. Patio covers (solid, lattice, or Alumawood) require permits under CBC Appendix H because they are considered structures; small pergolas under 120 sq ft and not attached to the house may be exempt. Concrete slab patios at grade for BBQ or seating are generally permit-exempt but still subject to drainage, setbacks (3-5 ft from property line depending on zone), and impervious-surface limits in certain overlay districts. Riverside's hillside zones have additional slope and drainage review.