Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of
our report dated March 14, 2005 relating to the financial statements, managements assessment of
the effectiveness of internal control over financial reporting and the effectiveness of internal
control over financial reporting, of Redwood Trust, Inc., which appears in Redwood Trust Inc.s
Annual Report on Form 10-K for the year ended December 31, 2004.
/s/ PricewaterhouseCoopers LLP
San Francisco, California
August 10, 2006