**Exhibit 12(a)(1)**

**CERTIFICATION**

I,Gerardo de Nicolás de Nicolás Gutiérrez, certify that:

1. Ihave reviewed this annual report on Form 20-F of DesarrolladoraHomex, S.A.B. de C.V.;

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

3. Basedon my knowledge, the financial statements, and other financial informationincluded in this report, fairly present in all material respects the financialcondition, results of operations and cash flows of the company as of, and for,the periods presented in this report;

4. Thecompany’s other certifying officer and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) for the company and have:

a. designed such disclosure controls and procedures,or caused such disclosure controls and procedures to be designed under oursupervision, to ensure that material information relating to the company,including its consolidated subsidiaries, is made known to us by others withinthose entities, particularly during the period in which this report is beingprepared;

b. evaluated the effectiveness of the company’sdisclosure controls and procedures and presented in this report our conclusionsabout the effectiveness of the disclosure controls and procedures, as of theend of the period covered by this report based on such evaluation; and

c. disclosed in this report any change in the company’sinternal control over financial reporting that occurred during the periodcovered by the annual report that has materially affected, or is reasonablylikely to materially affect, the company’s internal control over financialreporting; and

5. Thecompany’s other certifying officer and I have disclosed, based on our mostrecent evaluation of internal control over financial reporting, to the company’sauditors and the audit committee of company’s board of directors (or personsperforming the equivalent functions):

a. all significant deficiencies and materialweaknesses in the design or operation of internal controls over financialreporting which are reasonably likely to adversely affect the company’s abilityto record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involvesmanagement or other employees who have a significant role in the company’sinternal control over financial reporting.

 
|                          |   |   |   | /s/ Gerardo de Nicolás Gutiérrez   |
|--------------------------|--------|--------|--------|----------------------------------------------|
|                     |   |   |   | Name: Gerardo de Nicolás Gutiérrez |
|                     |   |   |   | Title: Chief Executive Officer               |
|                     |   |   |   |                                         |
|                     |   |   |   |                                         |
| Date: June 29, 2006 |   |   |   |                                         |

 

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