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                                                                    EXHIBIT 23.1


                       CONSENT OF INDEPENDENT ACCOUNTANTS

The Board of Directors
Modtech Holdings, Inc.;

We consent to incorporation by reference in the registration statements (No.
333-79023 and No. 333-81169) on Form S-8 of Modtech Holdings, Inc. of our report
dated March 9, 2001, relating to the consolidated balance sheets of Modtech
Holdings, Inc. and subsidiaries as of December 31, 1999, and 2000, and the
related consolidated statements of income, shareholders' equity, and cash flows
for each of the years in the three-year period ended December 31, 2000, and the
related financial statement schedule, which report appears in the December 31,
2000, annual report on Form 10-K of Modtech Holdings, Inc.


                                                /s/ KPMG LLP


Orange County, California
March 27, 2001