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:
| GOVERNMENTAL | CLIENT | YEAR |
| Architectural Services Area 4 | FL Department of Environmental Protection | 1995-2000 |
| Indefinite Quantity Services | United States Postal Service | 1993-2000 |
| Stump Pass | FL Department of Environmental Protection | 2000 |
| Port Richey Carrier Annex | United States Postal Service | 2000 |
| New Port Richey Carrier Annex | United States Postal Service | 2000 |
| Winter Haven MPO Retail Store | United States Postal Service | 1998 |
| Winter Haven MPO Postal Store | United States Postal Service | 1998 |
| Ranger Station & Road Work | FL Department of Environmental Protection | 1998 |
| Tarpon Springs MPO Postal Store | United States Postal Service | 1997 |
| 1914 PCHS Community Center Reroofing | City of Plant City | 1997 |
| Golden Gate MPO Retail Store | United States Postal Service | 1997 |
| Lakeland MPO Retail Store | United States Postal Service | 1997 |
| Auburndale MPO Retail Store | United States Postal Service | 1997 |
| Holiday MPO Retail Store | United States Postal Service | 1997 |
| Golden Gate MPO Retail Store | United States Postal Service | 1997 |
| Holiday MPO Parking Lot | United States Postal Service | 1996 |
| VA Hospital | A. J. Sanchez Consulting Engineers, Inc. | 1994 |
| East Naples Beach Library | Collier County | 1988 |
| Beach Place Runaway Center | Children's Services, Inc | 1986 |
| Lykes Memorial Library | Hernando County | 1986 |
| Marco Island Beach Library | Collier County | 1986 |
| Bouleware Springs | Gainesville City Commission | 1986 |
| Porpoise Point | City of Gainesville | 1984 |
| Gainesville Downtown | City of Gainesville | 1980 |
| Chemical Building, Tampa Waterworks | City of Tampa | 1978 |
