Mineral Resources boss Chris Ellison and wife Tia to sell one of their Mosman Park properties

WA’s biggest superblock is being broken up, with Chris and Tia Ellison listing a home on Saunders St that sits along their $64 million enclave.

In 2014, Ms Ellison paid $5 million for the Spanish-style, six-bedroom, four-bathroom hacienda on 826sqm of prime Mosman Park land.

It sits next to the $57.5 million, 7564sqm property the couple purchased in 2009, setting an Australian record at the time.

They also bought another adjacent property, for $6.625 million in 2014.

The three properties together gave them 9159sqm across three lots on one of WA’s best streets, dubbed multi-millionaires row. It is believed to be Perth’s biggest landholding of adjacent residential lots owned by a single entity.

There has been no word on why they are selling, but it is fair to assume it is simply surplus to requirements.

The price of lithium has not been too kind to the Ellisons lately.

Mr Ellison, the founder of Mineral Resources, may have felt the pinch from the company’s decision to scrap its dividend for the first time in 11 years.

But with his current $1.2 billion in stock, that clearly has not forced the listing.

The couple never lived in the home that is for sale, which locals call 90210 House. (Those old enough to remember the Beverley Hills 90210 series will see the similarities with the Walsh home.)

Sales agent Jody Fewster said she had been inundated with calls already and expected the next owner would put their own stamp on it with a makeover.

The residence is north-facing with sweeping views across the river to the city, set close to Chidley Point Reserve.

It features arched, white-rendered walls and Spanish tiles, as well as curved stairs leading to the first floor and the wine cellar, basement and sauna.

The open-plan kitchen, living and dining rooms look over the tiled courtyard, which has uninterrupted views over the river.