Mail Stop 4561 									November 18, 2005 Mr. Carl E. Berg Chief Executive Officer Mission West Properties, Inc. 10050 Bandley Drive Cupertino, CA 95014 Re:	Mission West Properties, Inc. 		Form 10-K for Fiscal Year Ended December 31, 2004 		Forms 10-Q for Fiscal Quarters Ended March 31, 2005 and June 30, 2005 		File No. 0-25235 Dear Mr. Berg: We have completed our review of your Form 10-K and related filings and do not, at this time, have any further comments. 							Sincerely, Josh Forgione Staff Accountant