Nairobi Governor Mike Sonko has been impeached despite his attempts to stop the vote through a court order.
Some 88 MCAs took part in the process on Thursday afternoon while two of them voted against the impeachment.
Mr Sonko had flown about 57 MCAs to Kwale to defeat the plans but Speaker Benson Mutura proceeded with the motion.
In February, Mr Sonko survived another ouster motion after the court intervened stopping tabling of a motion against him.
Mr Michael Ogada accused him of gross violation of the Constitution and other laws, abuse of office, commission of crimes under the national laws and lacking the mental capability to run the county government.
“This House has no other option but to exercise the power of impeachment. The plane has landed and it is now our time to stand and be counted by not allowing the county government to go to the dogs," said Mr Ogada.
Seconding the motion, Majority Leader Abdi Guyo said the bid to remove Mr Sonko from office was necessitated by the need to restore normal operations at the county government to ensure services reach Nairobi residents.
Mr Sonko rushed to court on Tuesday and obtained orders stopping the process. But when the matter came up for hearing yesterday, Justice James Rika declined to lift the order but instead recused himself from the case.
In moving to court, Mr Sonko argued that the law does not allow the filing of a fresh impeachment motion, yet an earlier one filed by Peter Imwatok, has not been withdrawn it.
Through his lawyer Harrison Kinyanjui accused the Speaker and MCAs of stalling the earlier case, delaying its conclusion.
“The respondents cannot lawfully have a multiplicity of impeachment motions pending or un-procedurally adjudicated against the petitioner before it, as has now happened, thereby exposing the petitioner to double jeopardy,” he said.