Coldwell Banker Commercial Realty is pleased to present a medical office leasing opportunity at 520 West Avenue in Norwalk, Connecticut. The Frost Building sits in the heart of downtown Norwalk's medical corridor, with immediate connectivity to I-95, the Merritt Parkway, US-7, and US-1, and is just 1,000 feet from Norwalk Hospital's main campus.​

The surrounding trade area offers affluent demographics and strong healthcare demand, supported by a walkable downtown setting with easy access to dining, cafés, banking, and retail. It's the kind of location that continues to draw specialty practices, primary care, and outpatient healthcare operators to Fairfield County.​

A rare large-block availability is now open in this Class A medical office building, with up to 23,125 SF available across two suites: an 8,000 SF ground-floor suite and an entire 15,125 SF second floor, divisible or combined. The building is anchored by Nuvance Health (Northwell Health) outpatient programs and services, and is owned and managed by Seligson Properties, a landlord with decades of healthcare real estate experience. On-site parking includes 143 spaces at a 5-per-1,000 SF ratio, with a dedicated patient drop-off and covered entry.