I live in Orange County in Southern California and down here we have a castle on a hill in an exclusive un-gated community called Nellie Gale. It's perched on a hill over looking the 5 Freeway and you can see it while facing west on the Oso Parkway bridge that crosses that freeway on the border of the towns of Mission Viejo and Laguna Niguel. I don't know if it has a name, but if you drive down the actual street it's on, you can't see it; only it's front gate, because the actual castle is recessed and there are other mansions on both sides of the gate. I'm sorry I don't have a picture for you. It has these white twin globe lanterns that circle the property (maybe 30 of them!) and every Christmas season the white is replaced with one red and one green globe.
Later, I received E-Mail that said:
Here's an answer for the UNK in Orange County, CA. Actual location is Laguna Hills, CA and it is FOR SALE! The realtor is Carol McLaughlin.
Thanks to Katrina Price for finding the photo.