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Highlights

  • High daytime traffic, strong walk/bike scores, 280 free parking spaces, 24-hour access, and a broad tenant mix

Space Availability (9)

Display Rental Rate as

  • Space
  • Size
  • Ceiling
  • Term
  • Rental Rate
  • Rent Type
  • 1st Floor - 02A & 8
  • 2,783-5,948 SF
  • -
  • 2-5 Years
  • $24.67 CAD/SF/YR $2.06 CAD/SF/MO $146,722 CAD/YR $12,227 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 1st Floor - 02A & 8
Space Use
Industrial
Build-Out
-
Availability
Now
  • Lease rate does not include utilities, property expenses or building services
  • 1st Floor - 03
  • 1,797-5,948 SF
  • -
  • 3 Years
  • $29.27 CAD/SF/YR $2.44 CAD/SF/MO $174,110 CAD/YR $14,509 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 1st Floor - 03
Space Use
Flex
Build-Out
-
Availability
Now
  • Lease rate does not include utilities, property expenses or building services
  • 1st Floor - 06
  • 1,368-5,948 SF
  • -
  • 2-5 Years
  • $26.31 CAD/SF/YR $2.19 CAD/SF/MO $156,503 CAD/YR $13,042 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 1st Floor - 06
Space Use
Industrial
Build-Out
-
Availability
2026-05-01
  • Lease rate does not include utilities, property expenses or building services
  • 1st Floor, Ste 42-104
  • 773 SF
  • -
  • 2-5 Years
  • $29.60 CAD/SF/YR $2.47 CAD/SF/MO $22,881 CAD/YR $1,907 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 1st Floor - Ste 42-104
Space Use
Office/Retail
Build-Out
-
Availability
Now
  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 7 People
  • 1st Floor - 59
  • 864 SF
  • -
  • Negotiable
  • $43.91 CAD/SF/YR $3.66 CAD/SF/MO $37,936 CAD/YR $3,161 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 1st Floor - 59
Space Use
Flex
Build-Out
-
Availability
Now

LIVE WORK UNIT

  • Lease rate does not include utilities, property expenses or building services
  • 2nd Floor, Ste 29-202
  • 784 SF
  • -
  • Negotiable
  • $24.67 CAD/SF/YR $2.06 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 2nd Floor - Ste 29-202
Space Use
Office
Build-Out
-
Availability
Now
  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 7 People
  • 1 Private Office
  • 2nd Floor, Ste 43-204
  • 599 SF
  • -
  • Negotiable
  • $27.96 CAD/SF/YR $2.33 CAD/SF/MO $16,746 CAD/YR $1,395 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 2nd Floor - Ste 43-204
Space Use
Office
Build-Out
-
Availability
Now
  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 5 People
  • 3rd Floor, Ste 42-301
  • 672 SF
  • -
  • Negotiable
  • $28.78 CAD/SF/YR $2.40 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 3rd Floor - Ste 42-301
Space Use
Office/Medical
Build-Out
-
Availability
Now

ELEVATOR ACCESS

  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 6 People
  • 3rd Floor, Ste 42-305
  • 1,411 SF
  • 8’
  • Negotiable
  • $26.31 CAD/SF/YR $2.19 CAD/SF/MO $37,126 CAD/YR $3,094 CAD/MO
  • Triple Net (NNN)
303 Potrero St - 3rd Floor - Ste 42-305
Space Use
Office
Build-Out
Full Build-Out
Availability
Now

Owner would consider devising space into multiple offices

  • Lease rate does not include utilities, property expenses or building services
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 4 - 12 People
  • Finished Ceilings: 8’
  • Space is in Excellent Condition
Space Size Ceiling Term Rental Rate Rent Type
1st Floor - 02A & 8 2,783-5,948 SF - 2-5 Years $24.67 CAD/SF/YR $2.06 CAD/SF/MO $146,722 CAD/YR $12,227 CAD/MO Triple Net (NNN)
1st Floor - 03 1,797-5,948 SF - 3 Years $29.27 CAD/SF/YR $2.44 CAD/SF/MO $174,110 CAD/YR $14,509 CAD/MO Triple Net (NNN)
1st Floor - 06 1,368-5,948 SF - 2-5 Years $26.31 CAD/SF/YR $2.19 CAD/SF/MO $156,503 CAD/YR $13,042 CAD/MO Triple Net (NNN)
1st Floor, Ste 42-104 773 SF - 2-5 Years $29.60 CAD/SF/YR $2.47 CAD/SF/MO $22,881 CAD/YR $1,907 CAD/MO Triple Net (NNN)
1st Floor - 59 864 SF - Negotiable $43.91 CAD/SF/YR $3.66 CAD/SF/MO $37,936 CAD/YR $3,161 CAD/MO Triple Net (NNN)
2nd Floor, Ste 29-202 784 SF - Negotiable $24.67 CAD/SF/YR $2.06 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO Triple Net (NNN)
2nd Floor, Ste 43-204 599 SF - Negotiable $27.96 CAD/SF/YR $2.33 CAD/SF/MO $16,746 CAD/YR $1,395 CAD/MO Triple Net (NNN)
3rd Floor, Ste 42-301 672 SF - Negotiable $28.78 CAD/SF/YR $2.40 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO Triple Net (NNN)
3rd Floor, Ste 42-305 1,411 SF 8’ Negotiable $26.31 CAD/SF/YR $2.19 CAD/SF/MO $37,126 CAD/YR $3,094 CAD/MO Triple Net (NNN)

303 Potrero St - 1st Floor - 02A & 8

Size
2,783-5,948 SF
Ceiling
-
Term
2-5 Years
Rental Rate
$24.67 CAD/SF/YR $2.06 CAD/SF/MO $146,722 CAD/YR $12,227 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Industrial
Build-Out
-
Availability
Now

  • Lease rate does not include utilities, property expenses or building services

303 Potrero St - 1st Floor - 03

Size
1,797-5,948 SF
Ceiling
-
Term
3 Years
Rental Rate
$29.27 CAD/SF/YR $2.44 CAD/SF/MO $174,110 CAD/YR $14,509 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Flex
Build-Out
-
Availability
Now

  • Lease rate does not include utilities, property expenses or building services

303 Potrero St - 1st Floor - 06

Size
1,368-5,948 SF
Ceiling
-
Term
2-5 Years
Rental Rate
$26.31 CAD/SF/YR $2.19 CAD/SF/MO $156,503 CAD/YR $13,042 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Industrial
Build-Out
-
Availability
2026-05-01

  • Lease rate does not include utilities, property expenses or building services

303 Potrero St - 1st Floor - Ste 42-104

Size
773 SF
Ceiling
-
Term
2-5 Years
Rental Rate
$29.60 CAD/SF/YR $2.47 CAD/SF/MO $22,881 CAD/YR $1,907 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Office/Retail
Build-Out
-
Availability
Now

  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 7 People

303 Potrero St - 1st Floor - 59

Size
864 SF
Ceiling
-
Term
Negotiable
Rental Rate
$43.91 CAD/SF/YR $3.66 CAD/SF/MO $37,936 CAD/YR $3,161 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Flex
Build-Out
-
Availability
Now

LIVE WORK UNIT

  • Lease rate does not include utilities, property expenses or building services

303 Potrero St - 2nd Floor - Ste 29-202

Size
784 SF
Ceiling
-
Term
Negotiable
Rental Rate
$24.67 CAD/SF/YR $2.06 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Office
Build-Out
-
Availability
Now

  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 7 People
  • 1 Private Office

303 Potrero St - 2nd Floor - Ste 43-204

Size
599 SF
Ceiling
-
Term
Negotiable
Rental Rate
$27.96 CAD/SF/YR $2.33 CAD/SF/MO $16,746 CAD/YR $1,395 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Office
Build-Out
-
Availability
Now

  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 5 People

303 Potrero St - 3rd Floor - Ste 42-301

Size
672 SF
Ceiling
-
Term
Negotiable
Rental Rate
$28.78 CAD/SF/YR $2.40 CAD/SF/MO $19,339 CAD/YR $1,612 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Office/Medical
Build-Out
-
Availability
Now

ELEVATOR ACCESS

  • Lease rate does not include utilities, property expenses or building services
  • Fits 2 - 6 People

303 Potrero St - 3rd Floor - Ste 42-305

Size
1,411 SF
Ceiling
8’
Term
Negotiable
Rental Rate
$26.31 CAD/SF/YR $2.19 CAD/SF/MO $37,126 CAD/YR $3,094 CAD/MO
Rent Type
Triple Net (NNN)
Space Use
Office
Build-Out
Full Build-Out
Availability
Now

Owner would consider devising space into multiple offices

  • Lease rate does not include utilities, property expenses or building services
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 4 - 12 People
  • Finished Ceilings: 8’
  • Space is in Excellent Condition

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 Old Sash Mill

  • Tenant
  • Description
  • US Locations
  • Reach
  • Adventure Sports Unlimited
  • Fitness
  • 1
  • -
  • Ferguson Safety Products
  • Professional, Scientific, and Technical Services
  • 1
  • -
  • Stokes Signs
  • Manufacturing
  • 1
  • -
  • Storrs Winery
  • Liquor
  • 1
  • -
Tenant Description US Locations Reach
Adventure Sports Unlimited Fitness 1 -
Ferguson Safety Products Professional, Scientific, and Technical Services 1 -
Stokes Signs Manufacturing 1 -
Storrs Winery Liquor 1 -

Property Facts

Total Space Available 22,947 SF
Min. Divisible 599 SF
Center Type Strip Center
Parking 560 Spaces
Stores 3
Center Properties 9
Frontage 391’ on Potrero St
Gross Leasable Area 31,264 SF
Total Land Area 9.03 AC
Year Built 1983

About the Property

Located in the heart of central Santa Cruz, Old Sash Mill at 303 Potrero St offers a dynamic mixed-use leasing opportunity. With approximately 131,264 SF spread across a flexible campus, this historic property features industrial, office, retail, recreation, food-service, brewery/winery, and live/work spaces. Tenants benefit from excellent daytime foot and vehicle traffic, strong walkability, and a vibrant on-site community. With 280 free parking spaces, 24-hour access, and a thriving tenant mix, this property is ideal for businesses seeking a creative, collaborative, and well-supported environment. Nearly 140 tenants across several industries creating a mix of tenants like no other. There spaces within the campus for retail, office, industrial, recreation, food service, brewery/winery, and even Live/Work. Reach out today for a list of what is currently available

  • 24 Hour Access
  • Property Manager on Site
Fairly walkable
40/100
Exceptionally drivable
90/100
Some public transit
40/100
Moderately bikeable
60/100

Nearby Major Retailers

Curves
Bank of Montreal
Wells Fargo Home Mortgage
Bank of America
Chase Bank
Starbucks
Club Pilates
New Leaf Community Markets
Five Guys
The Habit Burger Grill
  • Listing ID: 15719256

  • Date on Market: 2026-03-31

  • Last Updated:

  • Address: 303 Potrero St, Santa Cruz, CA 95060

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