Exhibit 31

CERTIFICATION

I, Worth Harris Carter, Jr., certify that:

1. I have reviewed this annual report on Form 10-KSB of Bank Building Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included
in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the small business issuer as of, and for, the periods presented in this report;

4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the small business
issuer and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed
under my supervision, to ensure that material information relating to the small business issuer, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this report is
being prepared;

(b) Evaluated the effectiveness of the small business issuers disclosure controls and procedures and presented in
this report my conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the small business issuers internal control over financial reporting that occurred during the small
business issuers most recent fiscal quarter (the small business issuers fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the small business issuers
internal control over financial reporting; and

5. I have disclosed, based on my most recent evaluation of internal control over financial reporting, to
the small business issuers auditors and the audit committee of the small business issuers board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the small business issuers ability
to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or
other employees who have a significant role in the small business issuers internal control over financial reporting.



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|Date: May 1, 2006 |  |  |  |                                                                                                             
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|                  |  |  |  | /s/ Worth Harris Carter, Jr.                                                                                
|                  |  |  |  | Worth Harris Carter, Jr.Chairman of the Board, President,Chief Executive Officer and Chief Financial Officer