EXHIBIT 23.1b
Consent of Independent Registered Public Accounting Firm
Bank of Auburn Hills
Auburn Hills, Michigan
We hereby consent to the use in the proxy statement/prospectus constituting a part of this Registration Statement on Form S-4 of Capitol Bancorp Limited of our report dated April 4, 2008 relating to the financial statements of Bank of Auburn Hills which is contained in the proxy statement/prospectus. We also consent to the reference to us under the caption "Experts" in the proxy statement/prospectus.
/s/ BDO SEIDMAN, LLP
Grand Rapids, Michigan
February 11, 2009