Most Expensive Homes in the OECD: How NZ’s $60M Listing Compares to Global Trophy Properties
New Zealand’s priciest residential real estate listing looks modest on the international stage, sitting well behind multi-million-dollar compounds and trophy properties across the Organisation for Economic Co-operation and Development, OneRoof reported.
Herne Bay Listing Ranks Behind Global Giants
The six-bedroom Herne Bay property at 15 Cremorne Street carries an asking price of more than $60 million. According to OneRoof, that price tag places the New Zealand property 18th on an OECD-wide list of luxury real estate listings. The Herne Bay home is worth less than a tenth of the most expensive property currently listed for sale in the United States.
That US property, a Bel-Air mega-mansion located at 11201 Chalon Road in California, carries an asking price of NZ$668m. Meanwhile, the United Kingdom and Australia also eclipse New Zealand’s top-tier figures. A duplex penthouse at One Hyde Park in Knightsbridge, London, was on the market at NZ$392m, while a waterfront estate at 2A Bayview Hill Road in Rose Bay, Sydney, carries an asking price of $187.2 million (A$150m).
New Zealand’s national house price record sits lower still. Andersons Cove in Northland sold for $56 million earlier this year, falling short of the peak OECD transaction price of NZ$283.9m.
Castles and Cartel Compounds Fill OECD Luxury Portfolios
OneRoof’s examination of prestige markets uncovered five genuine castles or châteaux located across Switzerland, France, Sweden, Luxembourg, and Slovakia. The most valuable among them is Château El Masr in Cologny, Switzerland, listed at $114.4 million (CHF55m). Commissioned in 1883-84 by Scottish entrepreneur Charles Flood after he amassed a fortune in Egypt, the property highlights the historical scale of European luxury estates.
At the opposite end of the spectrum, some high-end properties carry dark histories. In Colombia, the bombed-out ruins of Pablo Escobar’s Medellín compound, La Manuela, sold to an undisclosed buyer for $4.35 million (COP7.7bn) through the Colombian Government in December 2025. The 7000-square-meter mansion had deteriorated since rival cartel members bombed it in 1993.
Another high-value Colombian estate in Chía, Cundinamarca, once owned by the Bogotá cartel, sold to a university for $8.35 million (US$5m).
Billionaire Buyers Drive International Benchmark Sales
In August 2026, Strancally Castle in County Waterford was acquired by Meta head Mark Zuckerberg and his partner, Priscilla Chan, for $99.45 million (€51,171,155), establishing a fresh record for an individual Irish residential transaction that year. The Gothic Revival castle sits on 178 hectares and dates back to approximately 1830.
Additionally, Zuckerberg and Chan were connected to America’s costliest residential deal during that timeframe, acquiring 7 Indian Creek Island Road in Indian Creek, Florida, for NZ$283.9m (US$170m). That waterfront estate spans 2787 square meters and includes nine bedrooms alongside a 5678-litre fish tank.
In Italy, former prime minister Silvio Berlusconi’s Villa Certosa in Sardinia attracted a binding offer from a company linked to Qatar’s Al Thani royal family in June. The 126-room compound features seven outdoor pools, a spa, a helipad, and an artificial volcano.
New Zealand Ranks Nineteenth for Highest OECD Asking Prices
New Zealand ranked 19th for highest asking prices across the OECD, trailing Germany while sitting ahead of Hungary. However, these national positions fluctuate heavily based on individual trophy properties entering or leaving the market.
Anomalies persist within the rankings. Both Türkiye and Mexico feature homes priced above New Zealand’s top listing despite lower gross domestic product per capita figures. New Zealand’s GDP per capita reached approximately $88,000 in 2025, compared with $33,000 in Türkiye and $24,600 in Mexico.
Foreign buyers maintain a heavy presence across these international markets. New Zealand’s Active Investor Plus visa scheme permits wealthy foreign nationals to secure residency by investing locally, mirroring broader global trends where overseas capital flows directly into ultra-prime residential enclaves.
New Zealand’s house price record of $56 million sits well below the peak OECD sale price of NZ$283.9m.