Luxury and Trophy Real Estate Records — 2026-09-24
This week's headline deals include the sale of the Moroccan royal family's Neuilly mansion, a gold-domed Manhattan penthouse going under the hammer at a steep discount, and Silicon Valley trophy homes closing fast at record-approaching prices. Hong Kong's super-prime market ranked second globally for Q2 ultra-luxury sales, while tax policy — the UK mansion tax and Greece's Golden Visa overhaul — is visibly reshaping prime buyer behavior.
Luxury and Trophy Real Estate Records — 2026-09-24
Top developments
Moroccan royal family sells crown-jewel hôtel particulier in Neuilly-sur-Seine
The centenary, ultra-confidential 1,325 m² hôtel particulier at Neuilly-sur-Seine owned by the Moroccan royal family has been sold to a French private buyer — a rarity, as such properties usually trade between royal families. The residence features eight suites, a swimming pool, a 105 m² rooftop with open views over the Bois de Boulogne; the price remains secret.
Gold-domed Sohmer Piano Building penthouse sold at auction for $9 million
A landmark Manhattan penthouse set inside a gold-leaf dome atop the historic Sohmer Piano Building in the Flatiron District sold at auction for $9 million after 530 days on market — a 64% cut from its original $25 million asking price. Owner Greg Carr is directing the sale proceeds to his conservation project.
Silicon Valley overbid wave reaches trophy tier
A seven-bedroom, 11-bathroom mansion at 10718 Mora Drive in Los Altos Hills traded last week for $17.5 million, as the overbid trend that has powered San Francisco's hot streak spreads to neighboring Silicon Valley cities like Los Altos and Saratoga with high-dollar, quick closings.
Michael Dell's Boston penthouse heading to auction with $6.5M reserve
Billionaire Dell Technologies founder Michael Dell is putting his barely used 4,100-square-foot Boston penthouse up for auction with a $6.5 million minimum reserve — ten years after paying $10.9 million in 2016, a potential 40% discount that signals luxury sellers increasingly turning to the auction channel.
Hong Kong ranks second globally for ultra-luxury home sales in Q2
Hong Kong's super-prime residential market ranked second globally in Q2 2026, with both transaction volumes and values rising year on year, reflecting continued market recovery, according to Knight Frank.
Local view
French outlets call the Neuilly sale an "ultra-confidential" dossier. Le Figaro Immobilier reports a "privé français" clinched the prize normally exchanged between royal families. In Greece, eKathimerini warns the upcoming fivefold increase in the property transfer tax (from 3% to 15%) may hurt non-EU demand for holiday homes. In Britain, taxpolicy.org.uk reports house sale prices are "bunching just below the £2m mansion tax threshold" — first hard evidence the tax is distorting the prime market.
Context & numbers
- The Sohmer dome penthouse: $25M asking → $9M hammer price, 530 days on market
- Los Altos Hills mansion: $17.5M sale at 10718 Mora Drive
- Knight Frank's PIRI 100: global luxury prices rose 3.2% in 2025 (vs 3.6% in 2024); 73 of 100 markets up, 24 down; roughly 89 new UHNWIs enter the market daily
On the radar
- Greece's planned non-EU property transfer tax hike to 15% is slated for July 2027 — a purchase-timing window for Golden Visa investors is already opening (rumored ahead of legislation, flagged as such)
- City of Paris is re-auctioning two unsold hôtels particuliers via online bidding after a failed end-2025 sale attempt — watch for results
- Costa del Sol's Marbella–Benahavís–Estepona "golden triangle" is capturing a rising share of migrating global wealth — a seeking ground for future records
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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