John J. McKenna has completed over $600 million in projects over the course of over 40 years. The abridged list is broken into categories as follows:
| EDUCATION | CLIENT | YEAR |
| Miscellaneous Services | School District of Hillsborough County | 2001-present |
| Miscellaneous Services | District School Board of Pasco County | 2001-present |
| Hudson Middle School | District School Board of Pasco County | 2006 |
| Classroom Package #4 | School District of Hillsborough County | 2006 |
| Raymond O. Shelton Administrative Center | School District of Hillsborough County | 2005 |
| Brewster Voc-Tec | School District of Hillsborough County | 2005 |
| Study: Conversion to Middle School | School District of Hillsborough County | 2004 |
| Design Criteria: Ancillary Office Building | School District of Hillsborough County | 2004 |
| Design Criteria: Parking Facility | School District of Hillsborough County | 2004 |
| Hudson High School | District School Board of Pasco County | 2004 |
| James Elementary School | School District of Hillsborough County | 2004 |
| Westchase Elementary School | School District of Hillsborough County | 2004 |
| Hill Middle School | School District of Hillsborough County | 2003 |
| Broward Elementary School | School District of Hillsborough County | 2003 |
| Essrig Elementary School | School District of Hillsborough County | 2003 |
| Hillsborough High School | School District of Hillsborough County | 2001 |
| 3 Media Centers | School District of Hillsborough County | 1999 |
| Williams Alternative School | School District of Hillsborough County | 1998 |
| Tampa Preparatory Field House,Master Plan | Tampa Preparatory School | 1997 |
| Miscellaneous Services | District School Board of Pasco County | 1994-1997 |
| Norma Learning Center | Farmworker's Self-Help, Inc. | 1997 |
| Mendenhall Elementary School | School District of Hillsborough County | 1993 |
| Tampa Preparatory Middle School | Tampa Preparatory School | 1991, 1993 |
| Franklin Jr. High School | School District of Hillsborough County | 1988 |
| Phyllis P. Marshall Center, USF | FL State Board of Regents | 1988 |
| Special Events Center, USF | FL State Board of Regents | 1988 |
| Jesuit High School | Jesuit High School | 1988 |
| Rosewald Elementary Media Center | Palm Beach County Schools | 1988 |
| Essrig Elementary School | School District of Hillsborough County | 1988 |
| Gladeview Elementary Media Center | Palm Beach County Schools | 1987 |
| Florida Ocean Services, Inc. | Phil Adams | 1986 |
| McLane Jr. High | School District of Hillsborough County | 1983 |
| School of Library Science, FSU | FL State Board of Regents | 1981 |
| Chemistry Building, USF | Dept. of General Services | 1978 |
| Ybor City Campus, HCC | Hillsborough Community College | 19771978 |
| Dale Mabry Campus,HCC | Hillsborough Community College | 1976-1978 |
| Plant City Campus, HCC | Hillsborough Community College | 1976-1978 |
