<DOCUMENT>
<TYPE>EX-99.N
<SEQUENCE>12
<FILENAME>dex99n.txt
<DESCRIPTION>CONSENT OF INDEPENDENT AUDITORS
<TEXT>
<PAGE>

                                                                       Exhibit n

                         Consent of Independent Auditors

     We consent to the incorporation by reference of our report dated November
5, 2002 in the Registration Statement (Form N-2) of the Nuveen Insured
California Tax-Free Advantage Municipal Fund filed with the Securities and
Exchange Commission in this Post-Effective Amendment No. 1 to the Registration
Statement under the Securities Act of 1933 (File No. 333-100323) and in this
Amendment No. 4 to the Registration Statement under the Investment Company Act
of 1940 (File No. 811-21212).

                                          /s/ Ernst & Young LLP

Chicago, Illinois
November 25, 2002

</TEXT>
</DOCUMENT>
