It's not Arnie's fault. The Reagan residence was fine, but as I recall, Jerry Brown refused to live there and let it go out of state control. Just goes to show how far south this state has gone.
Nancy could not live in the governor's mansion because it was broken down. Jerry Brown did not live there (that was before the Reagans) ... but the mansion was supposedly so broken down in the Reagan years that it was essentially unlivable.