24 Cosso Court, Lafayette
Offered at $6,925,000
A Single-Level Mediterranean Estate on One of Happy Valley’s Most Coveted Courts
Main House: 6 Bedroom | 5.5 Bath | 5377± Sq. Ft. + 222± Sq. Ft. Bonus Room
Guest Cottage: 1 Bedroom + Office | 1 Bath | 856± Sq. Ft.
Grounds: .96± Acre Lot
On one of the most coveted cul-de-sacs in Lafayette’s Happy Valley, 24 Cosso Court sits on nearly an acre of flat, beautifully kept grounds. The custom-built, single-level Mediterranean home makes a warm first impression from the street, where a charming, gated front courtyard sets a gracious tone before you ever reach the door. Inside, the home reveals itself room by room, moving from formal rooms made for hosting in style to relaxed spaces made for real life. Every finish was chosen with care, and the result strikes a rare balance: elegant when the occasion calls for it, easy to live in every other day.
MAIN HOUSE
5377± square feet on one level leaves room for everything. Soaring ceilings give every room a sense of volume and light you feel the moment you walk in.
The dining room opens onto the backyard, an elegant setting for milestone celebrations, holiday gatherings, and dinner parties that linger well into the evening. Spacious living areas work just as well for a houseful of friends as for a quiet movie night, and a dedicated home office keeps work close but out of the way.
The chef’s kitchen is the heart of the house, equally suited to a relaxed morning at the island and an elaborate menu for a full table. Professional-grade appliances stand ready for anything, from a quick weeknight dinner to a day of cooking for a crowd.
The primary suite is a true retreat, expansive and filled with light, where a spa-inspired bath invites a long soak and the walk-in closet is remarkable in scale. Beyond it, five impressively sized bedrooms and four and a half baths offer exceptional flexibility. Just off the family room, a versatile bonus room adapts to whatever the day requires. It works beautifully as a playroom, yoga studio, or home gym.
GROUNDS
The west-facing backyard is where this home truly shines. Flat, open, fully fenced, and framed by mature landscaping, it feels like your own private resort, with the sun setting over it most nights of the year. The pool and spa take center stage, made for leisurely summer afternoons and a warm soak as the air cools. A charming oversized playhouse adds a touch of whimsy, ready for tea parties, make-believe, and afternoons of imaginative play. The 878± square foot covered loggia brings the comfort of indoors outside, complete with an outdoor kitchen that keeps the host in the heart of the party. At this scale, it can host a formal gathering for well over a hundred guests just as gracefully as an intimate dinner for a few close friends. Four garage spaces and ample parking make welcoming a crowd effortless.
GUEST HOUSE
Connected to the main home by the garage, the 856± square foot guest house offers one bedroom, a full bath, a kitchen, a dedicated laundry, an office area and a living room with a fireplace. With its dedicated entrance, the guest house offers privacy and independence while staying close to everything. It can also serve as a home office with space for a pullout sofa when guests arrive, or an art studio. The connecting garage is climate-controlled, offering the potential to create even more living space, whether a game room, media lounge, or hangout.
LOCATION
Happy Valley is loved for its privacy, its natural beauty, and neighbors who wave from the driveway. Happy Valley Elementary is moments away, the first step on one of the Bay Area’s most respected school paths, continuing through Stanley Middle and Acalanes High. Downtown Lafayette’s shops, restaurants, and markets are minutes from the court, the Lafayette Reservoir is close at hand for a walk along the water, and BART and Highway 24 keep the rest of the Bay Area within easy reach.
In Happy Valley, single-level living on this scale is something buyers often wait years to find. 24 Cosso Court is ready for its next chapter.