<DOCUMENT>
<TYPE>EX-99.L.4
<SEQUENCE>11
<FILENAME>dex99l4.txt
<DESCRIPTION>CONSENT OF BINGHAM MCCUTCHEN LLP
<TEXT>
<PAGE>

                                                                     Exhibit l.4

                                                           Bingham McCutchen LLP
                                                              150 Federal Street
                                                Boston, Massachusetts 02110-1726
                                                                    617.951-8000
                                                                    617.951-8736

                                November 22, 2002

     As special Massachusetts counsel for Nuveen Insured California Tax-Free
Advantage Municipal Fund (the "Registrant"), we consent to the incorporation by
reference of our opinion filed with pre-effective amendment no. 2 to the
Registrant's Registration Statement on Form N-2 on November 20, 2002.

     In giving this consent we do not admit that we are in the category of
persons whose consent is required under Section 7 of the Securities Act of 1933.

                                             Very truly yours,

                                             /s/ BINGHAM MCCUTCHEN LLP

</TEXT>
</DOCUMENT>
