EXHIBIT 21

Subsidiaries of Central Bancorp, Inc.

Central Co-operative Bank	100% owned by the Company, incorporated under the laws of the Commonwealth of Massachusetts
Central Securities Corporation	100% owned by the Bank, incorporated under the laws of the Commonwealth of Massachusetts
Central Securities Corporation II	100% owned by the Bank, incorporated under the laws of the Commonwealth of Massachusetts
Metro Real Estate Holdings, LLC	100% owned by the Bank, organized under the laws of the Commonwealth of Massachusetts
Central Bancorp Capital Trust I	100% owned by the Company, formed under the laws of the State of Delaware
Central Bancorp Statutory Trust II	100% owned by the Company, formed under the laws of the State of Connecticut