WWD explores the breakthroughs and the hype driving the wellness residential boom.

Spa-like amenities — including salt therapy rooms, biometric monitoring, red-light therapy, cold plunges, saunas, hyperbaric oxygen and recovery rooms — are quickly becoming the Hermès Birkin bags of luxury real estate. But cutting through the noise is getting tricky as wellness shifts from an amenity to infrastructure.

Sotheby’s International Realty’s 2026 Mid-Year Luxury Outlook found that wealthy homebuyers are designing their lives — and homes — around longevity, blurring the line between a luxury estate and a private wellness retreat.

These hospitality-style perks are no longer exclusive to branded residences or hotels, and clients are becoming more specific about what they consider a wellness home.

Moses Hershko, a luxury residential developer specializing in “longevity homes,” told WWD that it’s the buyers who are demanding health and well-being built into the living environment from the outset. Hospital-grade air filtration, advanced water purification, circadian lighting, sleep technology, conscious design, smart climate control, non-toxic materials and biometric monitoring are entering the conversation, alongside spa-like treatments.

“The future is not just a smart home; it is a home that supports your biology,” Hershko said.

Hershko’s latest project, Coastal Cliffside Longevity Estate, represents his firm’s vision moving forward: a private residence designed for beauty, privacy and architectural presence, as well as health span, recovery and long-term well-being. “Unlike larger multifamily or branded residential concepts, this is more personal and highly curated. It allows us to integrate longevity systems at the deepest level — air, water, lighting, sleep, recovery, movement, materials, privacy and daily rituals — into one complete living environment,” he said.

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