Villa Siena Bel-Air: Inside Ardie Tavangarian $135 Million Architecture-as-Art Mansion
Villa Siena Bel-Air is one of the most impressive luxury estates featured on RivonHome. Rising above Bel-Air on Siena Way, the four-story mansion spans roughly 35,000 square feet with a 12,000-square-foot rooftop, eight bedrooms, and up to 20 bathrooms.
Developed by Ardie Tavangarian, the estate combines bold modern architecture with comfortable spaces, rooftop living, elegant pavilions, and peaceful outdoor areas designed for relaxed family living. Unlike the intricate character of a Queen Anne style house, this property embraces clean lines and contemporary design while maintaining a warm, inviting atmosphere throughout.
Villa Siena Bel-Air House Location
- Full Address: 607 Siena Way in Bel-Air, Los Angeles, California 90077
One of the most private and guarded pockets of the Westside, the street sits close to the Bel-Air Country Club. The rooftop terrace looks straight out over its fairways and the city skyline beyond. Like the Jeff Bezos House, the setting reflects the exclusivity, privacy, and breathtaking views that define Los Angeles’ most prestigious residential neighborhoods.
Villa Siena Bel-Air House Tour
As Stefano Schiavon from RivonHome, I had the opportunity to tour this remarkable Villa Siena Bel-Air estate with my friend Dana, a real estate photographer. From the discreet gate to the dramatic 30-foot glass doors, every detail created a powerful first impression.
The sweeping four-story staircase, reflecting pool, teak, and stone finishes showcased exceptional craftsmanship. What impressed me most was how seamlessly the architecture connected indoor and outdoor spaces, creating a home that felt expansive yet beautifully cohesive.
Inside Villa Siena Bel-Air Interior and Other Features
Every room in Villa Siena Bel-Air shares the same teak, stone, and glass language, from the entrance down to the wellness wing.
Grand Entrance
You step through 30-foot pivoting glass walls into a foyer built to feel like a gallery. The centerpiece is a four-story, bronze-finished staircase suspended above fire and water elements, appearing to float with nothing holding it up. A reflecting pool catches the light at its base. Ceilings run tall throughout, and the natural teak and stone carry in from the exterior, so the transition from outside to in barely registers.
Bedrooms
Villa Siena Bel-Air holds eight bedrooms spread across four levels, each treated as its own retreat. The primary suite is the showstopper, with a retractable roof that opens fully for stargazing straight from the bed. Guest rooms carry the same natural materials and glass walls as the rest of the house, so nobody staying over feels like an afterthought here.
Bathrooms
Listings put the bathroom count between 15 and 25, depending on the source, with a mix of full and half baths spread through the home. Stone and teak continue into the wet rooms, and the primary bath pairs with that retractable-roof suite for an open-air soak. Fixtures lean minimal, letting the materials and the views do the talking instead of ornamentation.
Living Spaces
Formal and casual living areas spread across the main levels, built around the central staircase and reflecting pool. A 22-seat cinema handles movie nights, while a car gallery with an adjoining jazz bar creates a unique entertaining space. The rooftop adds another 12,000 square feet of outdoor living, with a second pool and wraparound space for hosting under open sky, much like the expansive entertaining spaces associated with the Mark Cuban House.
Kitchen
The kitchen is built to restaurant standard, with a professional-grade layout meant for real cooking, not just staging. Countertops and cabinetry stick to the same stone-and-teak palette as the rest of the home, keeping the room from feeling separate. The layout opens toward the social spaces, so whoever’s cooking stays part of the conversation instead of stuck behind a wall.
Special or Unique Spaces
A double-height office library with an adjoining tearoom gives the house a quiet corner away from the entertaining spaces. The wellness wing includes a full water-journey spa, hot and cold plunge pools, and a hydrotherapy chamber designed to feel like a jungle, complete with LED screens playing tropical birds overhead. A wine room sits behind 200-year-old antique Moroccan doors.
Security & Privacy
Bel-Air is already one of the most gated communities in Los Angeles, and Villa Siena adds its own layer on top. The 1.3-acre lot is walled and landscaped for privacy from every angle, with gated entry keeping the street view minimal. Listings note the home is shown only to pre-qualified buyers, which keeps foot traffic, and curiosity, to a minimum.
How Much Is Villa Siena Bel-Air Current Price?
Villa Siena first listed for $177 million in September 2024. Tavangarian relisted the estate in December 2025 at $135 million, about a 24 percent cut from the original ask. That works out to roughly $3,857 per square foot on the 35,000-square-foot home, still among the priciest listings in Los Angeles County.
Additional Ardie Tavangarian Properties & Real Estate
Villa Siena Bel-Air isn’t Tavangarian’s first big swing. Arya Group has built and sold other record-setting spec mansions across LA’s priciest neighborhoods.
25,000-Square-Foot Bel Air Mansion
Before Villa Siena, Tavangarian built a 25,000-square-foot spec mansion in Bel Air that sold for $75 million in 2019, an early sign of the scale he’d chase with future projects.
Pacific Palisades Estate
Tavangarian also developed a Pacific Palisades property that sold for a reported $83 million in 2021, continuing his run of high-dollar Westside spec builds through Arya Group.
Villa Siena is Tavangarian’s most ambitious project yet, and it remains his current flagship listing while those earlier homes have already sold and moved on to new owners.
Where Does Ardie Tavangarian Live Now?
Tavangarian is based in West Los Angeles, where Arya Group is headquartered, and he moves between his firm’s spec projects as they’re built out. He isn’t the resident of Villa Siena; the estate was built to sell, not to serve as his own home, so his day-to-day base stays separate from the properties Arya Group lists.
Ardie Tavangarian Net Worth: How Much Money Does He Have?
No confirmed net worth figure is publicly available for Tavangarian, since Arya Group is privately held and its project finances aren’t disclosed. His income comes from developing and selling ultra-luxury spec homes, with three projects alone totaling well over $290 million in combined asking or sale prices. Villa Siena’s eventual sale price will likely become the clearest public marker of his earnings yet.
Frequently Asked Questions About Villa Siena Bel-Air
Who owns Villa Siena in Bel-Air?
Developer Ardie Tavangarian, through his firm Arya Group, built and currently owns Villa Siena. It’s a spec home, built to sell rather than to house Tavangarian himself, and it remains listed rather than owned by a private buyer. — via Reddit
What is the Villa Siena Bel-Air floor plan?
Public listings don’t publish a full floor plan PDF, but the layout runs four stories around a central floating staircase, with bedrooms and the primary suite upstairs, entertaining spaces on the main levels, and a 12,000-square-foot rooftop on top.
Has Villa Siena Bel-Air sold?
Not yet. The home has moved through two asking prices, $177 million at its 2024 debut and $135 million after its December 2025 relist, but it remains on the market as of this writing.
Did Villa Siena Bel-Air burn down or catch fire?
No. The “fire” tied to Villa Siena refers to its design theme, the staircase is built above fire and water elements as a visual feature, not an actual blaze. There’s no report of the estate burning or being damaged by fire. Some Reddit threads joke about the price of the stairs alone, but none describe a real fire at the property. — via Reddit
Who is the architect behind Villa Siena Bel-Air?
Ardie Tavangarian of Arya Group designed and developed the estate, working with materials like teak and stone throughout.
Conclusion
Walking Villa Siena felt less like touring a house and more like walking through a piece of art someone happened to build bedrooms into. That floating staircase, the retractable roof over the primary suite, the rooftop with its own pool, none of it reads like a typical mansion.
Our own clients ask for this exact blend often, bold architecture paired with warm, livable materials, and Villa Siena is the clearest example yet of how far that idea can go.
