**Exhibit31.1**

**CERTIFICATIONOF PRINCIPAL EXECUTIVE OFFICER**

I, Robert M. Behringer, certify that:

1.               I have reviewed this quarterly report on Form 10-Q ofBehringer Harvard Opportunity REIT I, Inc.;

2.               Based on my knowledge, this quarterly report does notcontain any untrue statement of a material fact or omit to state a materialfact necessary to make the statements made, in light of the circumstances underwhich such statements were made, not misleading with respect to the periodcovered by this quarterly report;

3.               Based on my knowledge, the financial statements, andother financial information included in this quarterly report, fairly presentin all material respects the financial condition, results of operations andcash flows of the registrant as of, and for, the periods presented in thisquarterly report;

4.               The registrant’s other certifying officer and I areresponsible for establishing and maintaining disclosure controls and procedures(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrantand have:

(a)                                  Designed such disclosure controls andprocedures, or caused such disclosure controls and procedures to be designedunder our supervision, to ensure that material information relating to theregistrant, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which thisreport is being prepared;

(b)                                 Intentionallyomitted;

(c)                                  Evaluated the effectiveness of theregistrant’s disclosure controls and procedures and presented in this reportour conclusions about the effectiveness of the disclosure controls andprocedures as of the end of the period covered by this report based on suchevaluation; and

(d)                                 Disclosed in this report any change inthe registrant’s internal control over financial reporting that occurred duringthe registrant’s most recent fiscal quarter (the registrant’s fourth fiscalquarter in the case of an annual report) that has materially affected, or isreasonably likely to materially affect, the registrant’s internal control overfinancial reporting; and

5.               The registrant’s other certifying officer and I havedisclosed, based on our most recent evaluation of internal control overfinancial reporting, to the registrant’s auditors and the audit committee ofthe registrant’s board of directors (or persons performing the equivalentfunctions):

(a)                                  All significant deficiencies and materialweaknesses in the design or operation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’sability to record, process, summarize and report financial information; and

(b)                                 Any fraud, whether or not material, thatinvolves management or other employees who have a significant role in theregistrant’s internal control over financial reporting.

Dated this 14th day of August, 2007.
|        | /s/ Robert M. Behringer             |   |
|--------|-------------------------------------|--------|
|   | Robert M.  Behringer                |
|   | Chief Executive  Officer and        |
|   | Chairman of the  Board of Directors |

 

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