<DOCUMENT>
<TYPE>EX-99.N
<SEQUENCE>4
<FILENAME>dex99n.txt
<DESCRIPTION>CONSENT OF ERNST & YOUNG LLP
<TEXT>
<PAGE>

                        CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form N-2) and related prospectus and statement of
additional information of the Nuveen Insured California Tax-Free Advantage
Municipal Fund filed with the Securities and Exchange Commission in the
Pre-effective Amendment No. 1 to the Registration Statement under the Securities
Act of 1933 (File No. 333-100323) and in this Amendment No. 1 to the
Registration Statement under the Investment Company Act of 1940 (File No.
811-21212).

                                                           /s/ ERNST & YOUNG LLP

Chicago, Illinios
October 24, 2002

</TEXT>
</DOCUMENT>
