520 West Ave

520 West Ave, Norwalk, CT 06850

Property Information

  • For Lease $41.50/SF/YR
  • Property Type Office - Medical Office
  • Property Size 28,320 SF
  • Lot Size 0.76 Acre
  • # of Floors 2
  • Year Built 1930
  • Year Renovated 2025
  • Date Updated Aug 9, 2026

Description

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.

Highlights

  • Age: Over 50 Years Old
  • Lot Size: 1/2 - 1 Acre
  • Sewer: City
  • Water: City Water

2 Spaces Available

101

Space Type

Medical Office

Lease Rate

$41.50/SF/YR

Total Space

8,000 SF

Min Divisible

8,000 SF

Lease Type

NNN

Sublease

No

Build Type

Full build out

201

Space Type

Medical Office

Lease Rate

$41.50/SF/YR

Total Space

15,125 SF

Min Divisible

15,125 SF

Lease Type

NNN

Sublease

No

Build Type

Full build out

Contacts

Location

Located at 520 West Ave, Norwalk, CT 06850, this property is part of the North Norwalk neighborhood and Bridgeport New Haven market.

Contact 520 West Ave
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