<DOCUMENT>
<TYPE>EX-99.2N.1
<SEQUENCE>12
<FILENAME>c72644a1exv99w2nw1.txt
<DESCRIPTION>CONSENT OF ERNST & YOUNG LLP
<TEXT>
<PAGE>
                                                                     EXHIBIT n.1




                         CONSENT OF INDEPENDENT AUDITORS

         We consent to the reference to our firm under the caption "Experts" and
to the use of our report dated November 5, 2002 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 this Pre-Effective Amendment No. 1 to the
Registration Statement under the Securities Act of 1933 (Registration No.
333-100874) and in this Amendment No. 5 to the Registration Statement under the
Investment Company Act of 1940 (Registration No. 811-21212).



                                       /s/ Ernst & Young LLP
                                       -----------------------------------------
                                       ERNST & YOUNG LLP
Chicago, Illinois
January 8, 2003

</TEXT>
</DOCUMENT>
