520 West Ave

For Lease

520 West Ave, Norwalk, CT 06850

The total number of office spaces available at 520 West Ave is 2. Leasing opportunities in the building include medical office. There is a total of 23,125 square feet of space currently available for rent at this address. Of this, the minimum divisible area is 8,000 square feet.

Space Available For Lease 2

Contacts

Sean McDonnell

Coldwell Banker Realty

Brandon Manka

Coldwell Banker Realty

Property Details

  • 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 12, 2026
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.
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Highlights

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

Attachments

Getting around

  • 82/100

    Walk Score ®

  • 54/100

    Transit Score ®

  • 59/100

    Bike Score ®

Powered by Walk Score ®

Location

  • City Norwalk, CT
  • Neighborhood North Norwalk
  • Zip Code 06850
  • Market Bridgeport New Haven

Points of Interest

  • South Norwalk

    1.18 miles

  • Westport

    2.43 miles

  • Merritt 7

    2.44 miles

  • Talmadge Hill

    4.23 miles

  • New Canaan

    4.74 miles

  • Green's Farms

    5.36 miles

  • Glenbrook

    6.08 miles

  • Cannondale

    7.27 miles

  • Amtrak Metro North Taxi Stand

    7.89 miles

  • Old Greenwich

    9.58 miles

  • Mobil

    0.13 miles

  • Global

    0.65 miles

  • Shell

    0.82 miles

  • Cumberland Farms

    0.84 miles

  • Shell Express

    1.68 miles

  • Tesla Supercharger

    3.20 miles

  • Ambulance Parking

    0.31 miles

  • Courthouse Employee Parking

    0.35 miles

  • Yankee Doodle Garage

    0.43 miles

  • Connecticut Park and Ride

    0.54 miles

  • Handicapped Parking

    0.56 miles

  • Government Vehicles Only

    0.58 miles

  • Maritime Garage

    0.75 miles

  • Ironworks Garage

    0.87 miles

  • Haviland Lot

    0.96 miles

  • South Norwalk Station Parking Garage

    1.20 miles

  • The Guest House at Norwalk Inn

    0.58 miles

  • Norwalk Inn and Conference Center

    0.61 miles

  • Norwalk-Westport Motel

    1.55 miles

  • Garden Park Motel

    1.60 miles

  • Econo Lodge Norwalk

    1.88 miles

  • Hotel Zero Degrees Norwalk

    1.93 miles

  • Extended Stay America - Norwalk - Stamford

    2.25 miles

  • DoubleTree

    2.36 miles

  • EVEN Hotel Norwalk

    2.44 miles

  • Courtyard Norwalk

    2.80 miles

  • Nordstrom

    0.46 miles

  • The SoNo Collection

    0.52 miles

  • Bloomingdale's

    0.58 miles

  • Stew Leonard's

    1.06 miles

  • Stew Leonards

    1.06 miles

  • Patel Brothers

    1.22 miles

  • TJ Maxx

    1.28 miles

  • ShopRite

    1.40 miles

  • Stop & Shop

    1.42 miles

  • Kohl's

    1.67 miles

520 West Ave Listing Brief

  • Leasing rates here can depend on a variety of factors, including the quality rating of the property (property class or building class), the position of the available space within the building, any unique attributes that the listed space may include, as well as on the availability of on-site or nearby amenities. Reach out using the contact form available on this page to schedule a tour or to get more detailed information on the most modern facilities and amenities that 520 West Ave has to offer.

  • See the listing area details for information and ratings regarding the degree of walkability in the neighborhood, the accessibility and frequency of public transit options, as well as the level of availability and quality of biking infrastructure in the area. What’s more, you can use the interactive map for a good overview of the area. Location details also include a breakdown of distance from the property to several essential amenities and points of interest, which may include parking facilities, fuel stations, stores, or hotels.

  • This property is in the North Norwalk neighborhood of Norwalk and located within zip code 06850.

    The building includes 28,320 square feet, of which 23,125 square feet is rentable office space. The most recent renovation completed at this address was in 2025.

Contact 520 West Ave
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