BELVEDERE (CBS SF) — A mansion on the exclusive Marin County island town of Belvedere is going down in history as the highest reported single-family home sold in the area.

Barely making its most recent asking price of $49 million (down from $65 million in 2005) , Curbed reports the home known as Locksley Hall sold for $47.5 million on Wednesday. That’s $12 million more than the record for San Francisco and makes it the highest sale in Belvedere by about $22 million.

So what, you might be wondering, makes this home so spectacular?

For starters, the 9,234-square-foot mega home features enchanting views of San Francisco and Golden Gate Bridge from nearly every room, plus a poolhouse, rose garden and panic room.

And it garners celebrity status thanks to Heart Castle’s architect Julia Morgan who designed the bronze gates that guard the entrance of the estate.

An added bonus for the anonymous buyer, Curbed reported last year, is the property tax situation. “Because this is a historic spread, 440 Golden Gate falls under California’s Mills Act, which reduces property taxes in exchange for preserving buildings.”

Check out photos of this posh pad at Curbed.com.

Nicole Jones is a digital producer for CBS San Francisco. Follow her musings @nicjonestweets