Ad Hoc + Addendum
About
Addendum is a seasonal, lunch-only spot from Thomas Keller’s team, serving Southern-inspired gourmet boxed meals with standout fried chicken and classic sides like cornbread and mac salad. The casual outdoor setting offers shaded seating perfect for relaxed business lunches or informal gatherings.
Though reservations aren’t available, the efficient service and quality fare make it a reliable choice for small group meals in Yountville. Its proximity to the main Ad Hoc restaurant adds a layer of culinary pedigree, blending approachable hospitality with elevated flavors.
Best for
- Casual team lunches with outdoor seating
- Client meals featuring elevated Southern fare
- Quick-service dining for midday gatherings
Request a Package
Tell the venue what you're planning and they'll respond with a custom proposal within 1–2 business days.
Group Dining Event
Custom requestPerfect for team dinners, client lunches, and celebration meals. Reserve a private or semi-private space for your group with food, drinks, and AV if needed.
What's typically included
- Private or semi-private space
- Food & beverage
- AV & technology
Happy Hour
Custom requestHost a relaxed evening reception for your team or clients. Reserve a space for drinks and light bites in a social, low-key setting.
What's typically included
- Private or semi-private space
- Food & beverage
Full Buyout
Custom requestTake over the entire restaurant for your event. Full control of the space, menu, and atmosphere — ideal for large celebrations or exclusive corporate events.
What's typically included
- Full venue layout
- Food & beverage
- AV & technology
Venue Details
At a glance
Rated 4.5 on Google · 315 reviews