Sotheby’s Concierge Auctions boasts a portfolio of prime and super prime real estate listings capable of rivalling that of a national art gallery. A premier event for luxury property buyers, the upcoming September Collection features a remarkable lineup of US homes carefully selected for their unique designs and sought-after locations. Listed at extraordinary price points, these estates are highly desirable for international buyers.
With access to the industry’s leading database of ultra-high-net-worth individuals and an incomparable time-tested methodology to market your property, Sotheby’s Concierge Auctions continues to lead the luxury property market by sourcing exclusive listings from around the world to an elite group of buyers. Backed by Sotheby’s strong global presence and well-established brand in the luxury market, the real estate auction firm is the preferred platform for brokers and investors.
September Collection
No discussion of Sotheby’s supremacy in the luxury world can omit its Concierge Auction legacy, etched in history by unmatched record-breaking sales across its global, listed properties. As such, this month’s selection places the focus on US vast estates which set the standard for high-end living, marked by their impressive proportions, seclusion and undisputed value.
Running live until the end of September, the properties on offer in the auction represent more than just stunning residential homes – they offer an opportunity to invest in the finest real estate globally, through competitive starting bids, industry-leading data scale and curated expertise.
Ramona, Near San Diego, California
The ultimate private compound where luxury and complete seclusion complement each other, this two-storey off-grid sanctuary is set on 40 pristine acres within the Cleveland National Forest, capturing the most striking panoramic canyon and mountain views. Aptly called Cloud Ridge Estate, the four-bedroom luxury retreat is equipped with a private heliport ready to operate ten-minute flights to San Diego Airport.
A bold proposition in self-sufficiency and scale, the estate is built on rare infrastructure to enable seamless private arrivals and deliver complete autonomy without compromise. Centred on aviation features, the home comes with a dedicated hangar, a fully equipped machine shop, and a pilot’s lounge.
Rustic-modern elegance runs the design and decor, with beamed ceilings, wide-open living spaces, French doors throughout, and a layout curated for hosting or retreat. A gourmet kitchen, complete with island, walk-in pantry and quality appliances, flows easily into the family room and out towards the terrace.
Few homes offer a welcome as commanding as Cloud Ridge Estate, and the scale of its outdoor setting is every bit as impressive as the interiors. A 75-foot infinity pool with electric heat, bar and fire pit, heated spa and al fresco kitchen give way to a sequence of on-site amenities that span a vineyard-ready plot, shooting range, lake, private hiking and riding trails. A structurally graded half-acre pad offers scope for future expansion.
The property operates entirely on self-sustaining systems, served by an advanced 20KW solar system with ten Tesla Powerwalls, two 25GPM wells for independent water supply, electric heating and ductless cooling. Additionally, it holds 100 uncovered parking spaces, followed by a three-car attached garage with premium features.
A statement in independence, Cloud Ridge Estate is listed for $4.95 million.
Pikesville, Baltimore Area, Maryland
An exceptional value proposition, this spectacular, custom-built all-brick luxury residence spans over 32,000 square feet across nearly 3.5 private acres, offering 10 bedrooms and 17 bathrooms, in a prime location with customisation potential.
A rare chance to complete one of Pikesville’s most commanding private estates, the home is designed for multigenerational living, showcasing exceptional craftsmanship and impressive proportions throughout. With an open-plan layout bathed in natural light, the property is primed for dramatic finishes and refined architectural elements, offering an extraordinary blank canvas for discerning buyers to craft their vision onto it and recreate a truly bespoke family compound in one of Maryland's most celebrated addresses.
All major infrastructure is in place, including heating, cooling, plumbing, electrics, water and septic systems – along with a ready kitchen space and fully finished one-bedroom apartment with laundry room, ideal for guests or live-in staff.
The great outdoors stretches across nearly three and a half private acres of landscaped settings, including gardens and multiple spaces for entertaining.
Just minutes from Baltimore’s Inner Harbor and a short drive to BWI Airport, the estate is set in the exclusive Anton North enclave. It is listed for $5.9 million, offering vast scale, structural completion, and a blank canvas for personalisation.
Kauai, Hawaii, United States
With an extraordinary canvas offering ever-changing panoramas during the day and dramatic mountain sunsets, this 8.6-acre, premier bluff-top lot with ocean views is development zoned and ready to be reimagined into a world-class estate or agricultural retreat with a guest house. Listed at $6.499 million, it is positioned at the end of a cul-de-sac within a private 35-lot gated Kealia Kai enclave, offering seclusion without sacrificing access, within a 20-minute drive from Lihu‘e Airport.
This oceanfront parcel brings the area’s untamed beauty on full display, with arresting views sweeping from the Pacific to Ninini Point Lighthouse and the coastal path skirting the entire plot. Directly below, the Ke Ala Hele Makalae seafront trail links to Kealia Beach, Donkey Beach, and downtown Kapaa, where bodyboarding, fishing or whale-watching can be enjoyed right on the doorstep.
Final Note
An unmistakable presence on the global stage of prime and super prime properties, Sotheby’s Concierge Auctions is a clear leader in the luxury real estate auction space. From Florida to California and Colorado, Sotheby’s Concierge is the only real estate auction company to partner with a listing agent on every sale, with a clear prompt to find the luxury property for you and convert bidders into buyers.
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