The town of Hillsborough filed a complaint this week against Florence Fang, a media mogul who purchased the orange-and-purple, bulbous-shaped house in 2017.
She began installing the large metal sculptures, a sign in the driveway that reads "Yabba Dabba Doo," figurines of characters from "The Flintstones" animated sitcom, a staircase, a parking strip, a deck and other additions to the front and backyard.
In October, a code enforcement panel found the changes created "a highly visible eyesore and are out of keeping with community standards."
The complaint was filed after she failed to comply with the panel's order to remove the features.
Fang is a former publisher of The San Francisco Examiner. Her grandson said in a statement that his grandmother "will fight to save the Flintstone House."
"I think the dinosaurs are beautiful. They make everyone smile and should stay," Sean Fang said.