Criminal Law Questions? Ask a Criminal Lawyer.
Thank you for your question.
The answer is Yes:
"Under California statutory law, every inmate eligible for release on parole “is subject to search or seizure by a ․ parole officer or other peace officer at any time of the day or night, with or without a search warrant or with or without cause.” (Pen.Code, § 3067, subd. (b)(3).) Upon release, the parolee is notified that “[y]ou and your residence and any property under your control may be searched without a warrant at any time by any agent of the Department of Corrections [and Rehabilitation] or any law enforcement officer.” (Cal.Code Regs., tit. 15, § 2511, subd. (b)(4); see also Cal.Code Regs., tit. 15, § 2356 [requiring the department staff to notify the prisoner of the conditions of parole before release].) There is no dispute that the passenger was on parole and subject to the standard search clause. The Attorney General defends the search solely on that basis." Underlining added. From page 5 of the California Supreme Court opinion posted here.
I hope this information is helpful.
No they cannot search someone else's house just because you visited there, but they can search your residence whether or not you are present.
Please remember I do not make these laws, I just answer questions about them.