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Space Availability (2)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Rent Type
  • 1st Floor
  • 8,000 SF
  • 3-10 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Modified Gross
Space Use
Office/Medical
Build-Out
Full Build-Out
Availability
2027-07-01
  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Can be combined with additional space(s) for up to 23,145 SF of adjacent space
  • Central Air and Heating
  • 2nd Floor
  • 15,145 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Modified Gross
Space Use
Office/Medical
Build-Out
Full Build-Out
Availability
2027-07-01

Prime location in downtown Norwalk’s medical corridor Highly accessible with immediate connectivity to all major highways (I-95, Merritt Parkway, US-7, US-1) Affluent demographics with strong healthcare demand Only 1,000 Feet from Norwalk Hospital’s main campus Walkable downtown location with proximity to dining, cafés, banking, and retail

  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Can be combined with additional space(s) for up to 23,145 SF of adjacent space
  • Reception Area
  • Central Air and Heating
  • Private Restrooms
  • Plug & Play
  • Natural Light
  • After Hours HVAC Available
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible
  • Rare large-block (23,125 SF) Medical Space
  • Established Healthcare Use
  • Surrounded by hospitals/outpatient facilities
  • Local landlord/manager
Space Size Term Rental Rate Rent Type
1st Floor 8,000 SF 3-10 Years Upon Request Upon Request Upon Request Upon Request Modified Gross
2nd Floor 15,145 SF Negotiable Upon Request Upon Request Upon Request Upon Request Modified Gross

1st Floor

Size
8,000 SF
Term
3-10 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Rent Type
Modified Gross
Space Use
Office/Medical
Build-Out
Full Build-Out
Availability
2027-07-01

  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Can be combined with additional space(s) for up to 23,145 SF of adjacent space
  • Central Air and Heating

2nd Floor

Size
15,145 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Rent Type
Modified Gross
Space Use
Office/Medical
Build-Out
Full Build-Out
Availability
2027-07-01

Prime location in downtown Norwalk’s medical corridor Highly accessible with immediate connectivity to all major highways (I-95, Merritt Parkway, US-7, US-1) Affluent demographics with strong healthcare demand Only 1,000 Feet from Norwalk Hospital’s main campus Walkable downtown location with proximity to dining, cafés, banking, and retail

  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Can be combined with additional space(s) for up to 23,145 SF of adjacent space
  • Reception Area
  • Central Air and Heating
  • Private Restrooms
  • Plug & Play
  • Natural Light
  • After Hours HVAC Available
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible
  • Rare large-block (23,125 SF) Medical Space
  • Established Healthcare Use
  • Surrounded by hospitals/outpatient facilities
  • Local landlord/manager

Rent Types


The rent amount and type that the tenant (lessee) will be responsible to pay to the landlord (lessor) throughout the lease term is negotiated prior to both parties signing a lease agreement. The rent type will vary depending upon the services provided. For example, triple net rents are typically lower than full service rents due to additional expenses the tenant is required to pay in addition to the base rent. Contact the listing broker for a full understanding of any associated costs or additional expenses for each rent type.

1. Full Service: A rental rate that includes normal building standard services as provided by the landlord within a base year rental.

2. Double Net (NN): Tenant pays for only two of the building expenses; the landlord and tenant determine the specific expenses prior to signing the lease agreement.

3. Triple Net (NNN): A lease in which the tenant is responsible for all expenses associated with their proportional share of occupancy of the building.

4. Modified Gross: Modified Gross is a general type of lease rate where typically the tenant will be responsible for their proportional share of one or more of the expenses. The landlord will pay the remaining expenses. See the below list of common Modified Gross rental rate structures: 4. Plus All Utilities: A type of Modified Gross Lease where the tenant is responsible for their proportional share of utilities in addition to the rent. 4. Plus Cleaning: A type of Modified Gross Lease where the tenant is responsible for their proportional share of cleaning in addition to the rent. 4. Plus Electric: A type of Modified Gross Lease where the tenant is responsible for their proportional share of the electrical cost in addition to the rent. 4. Plus Electric & Cleaning: A type of Modified Gross Lease where the tenant is responsible for their proportional share of the electrical and cleaning cost in addition to the rent. 4. Plus Utilities and Char: A type of Modified Gross Lease where the tenant is responsible for their proportional share of the utilities and cleaning cost in addition to the rent. 4. Industrial Gross: A type of Modified Gross lease where the tenant pays one or more of the expenses in addition to the rent. The landlord and tenant determine these prior to signing the lease agreement.

5. Tenant Electric: The landlord pays for all services and the tenant is responsible for their usage of lights and electrical outlets in the space they occupy.

6. Negotiable or Upon Request: Used when the leasing contact does not provide the rent or service type.

7. TBD: To be determined; used for buildings for which no rent or service type is known, commonly utilized when the buildings are not yet built.

Select Tenants at Frost Building

  • Tenant
  • Description
  • US Locations
  • Reach
  • Carpe Diem Cafe
  • Coffee
  • 1
  • Local
  • J&M Variety
  • Convenience Market
  • 1
  • Local
  • Kingswood Kitchens
  • Home Improvement
  • 2
  • Local
  • My Beauty Styles Unisex
  • Salon/Barber/Spa
  • 1
  • Local
  • Nuvance Health Physical Rehabilitation
  • MD/DDS
  • 62
  • Regional
  • Pearl Dental
  • MD/DDS
  • 4
  • Regional
Tenant Description US Locations Reach
Carpe Diem Cafe Coffee 1 Local
J&M Variety Convenience Market 1 Local
Kingswood Kitchens Home Improvement 2 Local
My Beauty Styles Unisex Salon/Barber/Spa 1 Local
Nuvance Health Physical Rehabilitation MD/DDS 62 Regional
Pearl Dental MD/DDS 4 Regional

Property Facts

Total Space Available 23,145 SF
Property Type Retail
Property Subtype Storefront Retail/Office
Gross Leasable Area 28,320 SF
Year Built 1930
Parking Ratio 3.88/1,000 SF
Moderately walkable
70/100
Exceptionally drivable
100/100
Good public transit
60/100
Fairly bikeable
40/100

Nearby Major Retailers

Chase Bank
D1 Sports Training
Starbucks
Fairfield County Bank
Key Food
Bank of America
CTown
Patriot National Bancorp Inc
Goldfish Swim School
Duchess Restaurant
  • Listing ID: 40421503

  • Date on Market: 2026-05-13

  • Last Updated:

  • Address: 520 West Ave, Norwalk, CT 06850

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