HILLSBOROUGH (CBS SF) – The owner of a nearly 50 acre compound in Hillsborough has tacked on an unusual caveat to his $100 million sale price; he intends to continue living in the home until he dies.

The home has beloned to the de Guigne family for over 150 years, and is being sold by Christian de Guigne on the condition that he retains a “life estate” allowing him exclusive use of the home until his death, according to the Wall Street Journal. The 75-year-old is selling the home for estate planning purposes.

READ MORE: UPDATE: Victim, Suspect Identified In Fatal Oakland Park Shooting in Front of Children

The Mediterranean house is roughly 16,000 square feet according to the listing agent, Sotheby’s.

READ MORE: COVID: Youth, Adult Multi-Team Sports Can Resume In Alameda Co., Berkeley

The mansion, designed by San Francisco architects Bliss & Faville, boasts 7 bedroom and 8.5 baths. Rooms include a “Grand-scale Ballroom, Living Room, Library and Pavilion…aligned to open to a Pool Courtyard, revealing sweeping views of San Francisco & the East Bay,” according to Sotheby’s.

In 2011, the sale of a Los Altos Hills home was believed to be the first to break the $100 million barrier for a single-family property. Just last year, a Woodside home set what appears to be a new record at $117.5 Million.

MORE NEWS: UPDATE: Missing San Francisco Girl Found Safe In Pittsburg With Michigan Runaway

(Copyright 2013 by CBS San Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)