Residence Inn by Marriott San Diego Downtown/Gaslamp Quarter occupies 356 Sixth Avenue in downtown San Diego's Gaslamp Quarter, placing extended-stay suites with full kitchens one block from Petco Park and three blocks from the San Diego Convention Center. The on-site Toasted Barrel San Diego serves bourbon flights and grilled-cheese pairings in a recently renovated space that also anchors Sixth Avenue's dining block alongside Margaritaville Hotel San Diego Gaslamp Quarter next door. Studio and one-bedroom suites include stovetop, microwave, and full-size refrigerator, and the property's rooftop pool deck offers skyline views across the Gaslamp Quarter's Victorian-era roofline. The property accepts dogs on extended business stays, and Marriott Bonvoy members earn points at the same rate as traditional hotels — a detail that matters for consultants rotating through multi-week engagements at firms near the Omni San Diego Hotel at the Ballpark in the adjacent East Village corridor. The property's highest-demand periods align with Comic-Con and Padres postseason, when convention-block and group bookings fill the building's full suite inventory weeks in advance.