Property developers Michael and Prue Williams have been reshuffling their property portfolio, touted as the buyers of the Del Rio, Elizabeth Bay penthouse of Crown Resorts boss John Alexander and photographer wife Alice.
The W Property Group founders are believed to be the $8 million plus buyers of the unit atop the Spanish Mission block which Alexander had owned since 1993.
The exclusive Billyard Avenue block designed in the late 1920s by J.Spencer-Stanfield features only one apartment per floor.
The penthouse (above and below) has three bedrooms and two bathrooms.
The Alexander's are expected to be heading to Melbourne closer to Crown's flagship casino.
They still retains a foothold in the New South Wales property market with a Southern Highlands retreat in Robertson.
Earlier this year they sold their nearby retreat, known as Possumwood.
It's been a busy time too for the Williams' on the property front.
They've just sold their former Potts Point residence, a Wylde Street apartment set in a Victorian Italianate villa-style mansion.
It sold in just one day.
The two level apartment, which once belonged to local restaurateur Paolo Toppi and her husband Neil Cunningham, spans 510 sqm and has three bedrooms, three bathrooms and a private garden courtyard.
It has views of the harbour from its grand tiled balcony with wrought iron lacework.
The Williams' paid $5,525,000 in 2015 when they were downsizing from their Northwood waterfront, which sold for a suburb record $10,375,000.
Their Bondi stint was much more short-lived.
They paid $4.1 million for a three bedroom apartment late last year, only to on sell last month through Pauline Goodyer at Goodyer Real Estate for a higher price.
They established W Property in 1993.