The skinny on the fat wallets of L.A.’s 50 wealthiest.

Peter Lowy

NET WORTH: $750 million +15%

LAST YEAR: $650 million

AGE: 52 RESIDENCE: Los Angeles

SOURCE OF WEALTH: Retail development

THE MONEY: Mall magnate’s shares up in family-run Westfield Group and spin-off Westfield Retail Trust. Other holdings include stake in $500 million family nest egg created in 1998, believed to be worth more than $1 billion.

BUZZ: Australian native and brother Steven named joint chief executives of Sydney-based Westfield Group in March after father and co-founder Frank stepped down. Peter known for handling financial side of business, while Steven known as real estate mind. Oldest brother David also stepped down from executive position to manage family’s private holdings. Lowys continue to be involved in a long-running legal battle with U.S. authorities over alleged tax avoidance. Got recent break when federal judge ordered release of some IRS records. Peter Lowy has long been involved in local Jewish causes, including Bel Air’s American Jewish University, where he serves as chairman. Lowy and his wife, Janine, donated more than $230,000 to Democratic candidates in last year’s election, including combined $103,600 to Jerry Brown’s gubernatorial campaign. Forbes estimates family wealth at $4.4 billion.