820 D St in San Rafael, California presents a compelling investment opportunity within the heart of Marin County. The property features a purpose-built veterinary facility currently occupied by East San Rafael Veterinary Clinic under a triple-net lease, providing an investor with passive income supported by an established tenant. The facility was comprehensively renovated in 2010 and offers an efficient clinical layout, six exam rooms, and two treatment areas, enabling a broad range of medical services to be performed on-site. The clinic provides advanced, in-house capabilities such as internal medicine, surgeries, ultrasonography, endoscopy, and diagnostics, minimizing outside referrals and underscoring operational stability. Recent improvements, including a fully resurfaced and repaved parking lot in 2026, enhance accessibility and curb appeal while reducing near-term capital expenditures. The lease structure includes 3% annual rent escalations and minimal landlord responsibilities, offering predictable cash flow and long-term security with a corporate-backed tenant. Positioned in walkable Downtown San Rafael, this property enjoys excellent visibility and connectivity to major thoroughfares, including U.S. Highway 101. The surrounding affluent community, coupled with Marin County’s supply-constrained development environment, reinforces sustained demand and asset value in this infill Bay Area location.