| BEARE ROAD | Solid Waste Management Services | Legislated C02 | CW | $882.23 |
| Beavercrest Community Public Elementary School | Complete | Service Improvement and Enhancement C04 | 22 | $20.7M |
| Beaverton Thorah Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $12.8M |
| Bell Public Secondary School | Complete | Service Improvement and Enhancement C04 | CW | $3.4M |
| Bellmoore Public Elementary School | Complete | State of Good Repair C03 | CW | $1.8M |
| Belmont Public Elementary School | Under construction | State of Good Repair C03 | CW | $24.2M |
| Beltline Gap Connections | active | — | — | — |
| Bennetto Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $1.6M |
| BERMONDSEY TS | Solid Waste Management Services | State of Good Repair C03 | CW | $3K |
| Bernie Curtis Public Secondary School | Complete | Service Improvement and Enhancement C04 | CW | $31.8M |
| Bessarion Child Care | Complete | Legislated C02 | CW | $2.0M |
| Biindigen Community HUB | Complete | Service Improvement and Enhancement C04 | 22 | $510K |
| Bill Hogarth Public Secondary School | Complete | Service Improvement and Enhancement C04 | CW | $29.7M |
| Binbrook Catholic Elementary School | Complete | — | — | $12.3M |
| Binbrook II Public Elementary School | Planning | State of Good Repair C03 | CW | $13.5M |
| Binbrook Secondary School | Planning | State of Good Repair C03 | CW | $52.2M |
| Biogas Utilization at Disco | Solid Waste Management Services | Service Improvement and Enhancement C04 | CW | $1 |
| Biogas Utilization at Dufferin | Solid Waste Management Services | Service Improvement and Enhancement C04 | CW | $17.3 |
| Bishop PF Reding Catholic Secondary School | Complete | State of Good Repair C03 | CW | $20.1M |
| Bishop Ryan Catholic Secondary School | Complete | State of Good Repair C03 | CW | $8.4M |
| BL - Fleet Replacement - 2026 | Fleet Services | State of Good Repair C03 | CW | $397.3 |
| BL - Fleet Replacement - 2028 | Fleet Services | State of Good Repair C03 | CW | $131.7 |
| Black Creek Drainage Improvement Study | active | water-sewer | — | — |
| Blandford-Blenheim - Asset Management Project | Approved | — | — | $5K |
| Blessed Pope Paul VI Catholic Elementary School | Complete | — | — | $2.2M |
| Blind River Public Elementary and Secondary School | Under construction | State of Good Repair C03 | CW | $41.6M |
| Bloor GO Station | Complete | Service Improvement and Enhancement C04 | CW | — |
| Bloor Street Bike Lane Extension | Active | Transportation | Davenport | $45.0M |
| Bloor Street West Complete Street Extension | active | complete-streets | — | — |
| BLOWER REPLACEMENT | Wastewater Program | State of Good Repair C03 | CW | $69K |
| Bluewater Asset Management Project | Approved | — | — | $4K |
| Bluffers Park Forcemain Replacement Study | active | parks | — | — |
| BMP IMPLEMENTATION - CONSTRUCTION | Wastewater Program | Service Improvement and Enhancement C04 | CW | $704 |
| BMP IMPLEMENTATION ENHANCEMENTS - CONSTRUCTION | Wastewater Program | State of Good Repair C03 | CW | $10K |
| Bobby Orr Public Elementary School | Complete | State of Good Repair C03 | CW | $1.1M |
| Bobcaygeon | Complete | — | — | $750K |
| Boyne Public Elementary School | Complete | State of Good Repair C03 | CW | $12.9M |
| Boyne River Public Elementary School | Complete | State of Good Repair C03 | CW | $10.9M |
| Boys & Girls Club of Kawartha Lakes Community Hub Enhancement | Complete | Service Improvement and Enhancement C04 | CW | $2.0M |
| Bradford Catholic Elementary School | Under construction | — | — | $28.2M |
| Brampton (A. Grenville and William Davis) Courthouse Addition - Phase 2 | Complete | Service Improvement and Enhancement C04 | 10 | $82.5M |
| Brampton Northeast Supercentre | Complete | Service Improvement and Enhancement C04 | 22 | $750K |
| Brampton Southwest Library | Complete | — | — | $250K |
| Brant Hills Public Elementary School | Complete | State of Good Repair C03 | CW | $323K |
| Briargreen Public Elementary School | Complete | State of Good Repair C03 | CW | $807K |
| Bridges and Tunnels - SOGR | Toronto Transit Commission | State of Good Repair C03 | CW | $251K |
| Bridgewood Public Elementary School | Complete | State of Good Repair C03 | CW | $12.1M |
| Bridletown Community Centre (Child Care Centre 6) | Children's Services | Service Improvement and Enhancement C04 | 22 | $2K |
| Brigadoon-Huron Catholic Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $17.8M |
| Brighton Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $837K |