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All Available Space(1)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor, Ste 105
  • 1,775 SF
  • Negotiable
  • $34.20 /SF/YR $2.85 /SF/MO $60,705 /YR $5,059 /MO
  • Office
  • -
  • May 01, 2026

Located at 851 Irwin Street, this 1,775-square-foot space is available for lease within a well-appointed three-story building encompassing over 27,000 square feet. The unit offers a bright, efficient layout filled with abundant natural light—an ideal setting for small businesses seeking a flexible and functional workspace. Tenants benefit from a range of shared building amenities, including exterior decks, a welcoming lobby, elevators, a communal kitchen, and conference rooms. The property is fully equipped with building-wide WiFi and supported by ample on-site parking, ensuring both convenience and connectivity in a professional environment. Positioned just steps from Whole Foods, as well as nearby shops, restaurants, the SMART Train, and the Marin Bus Depot, the location offers exceptional accessibility for commuting. With quick freeway access, flexible short-term lease options, and attentive on-site management, this prime location is designed to accommodate and support your business as it grows.

  • Listed rate may not include certain utilities, building services and property expenses
  • Space is in Excellent Condition
  • Office intensive layout
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor, Ste 105 1,775 SF Negotiable $34.20 /SF/YR $2.85 /SF/MO $60,705 /YR $5,059 /MO Office - May 01, 2026

1st Floor, Ste 105

Size
1,775 SF
Term
Negotiable
Rental Rate
$34.20 /SF/YR $2.85 /SF/MO $60,705 /YR $5,059 /MO
Space Use
Office
Build-Out
-
Available
May 01, 2026

1st Floor, Ste 105

Size 1,775 SF
Term Negotiable
Rental Rate $34.20 /SF/YR
Space Use Office
Build-Out -
Available May 01, 2026

Located at 851 Irwin Street, this 1,775-square-foot space is available for lease within a well-appointed three-story building encompassing over 27,000 square feet. The unit offers a bright, efficient layout filled with abundant natural light—an ideal setting for small businesses seeking a flexible and functional workspace. Tenants benefit from a range of shared building amenities, including exterior decks, a welcoming lobby, elevators, a communal kitchen, and conference rooms. The property is fully equipped with building-wide WiFi and supported by ample on-site parking, ensuring both convenience and connectivity in a professional environment. Positioned just steps from Whole Foods, as well as nearby shops, restaurants, the SMART Train, and the Marin Bus Depot, the location offers exceptional accessibility for commuting. With quick freeway access, flexible short-term lease options, and attentive on-site management, this prime location is designed to accommodate and support your business as it grows.

  • Listed rate may not include certain utilities, building services and property expenses
  • Office intensive layout
  • Space is in Excellent Condition

Property Facts

Building Type
Office
Year Built
1982
Building Height
3 Stories
Building Size
27,731 SF
Building Class
B
Typical Floor Size
9,244 SF
Parking
59 Surface Parking Spaces
Covered Parking
Reserved Parking

Select Tenants

  • Berkshire Hathaway Drysdale Properties
  • Regional real estate brokerage firm based in Danville, California since 2005.
  • Cal Coordinators
  • Case management and enhanced care coordination services.
  • Fair Housing Advocates of Northern California
  • Local provider of free comprehensive fair housing counseling and complaint investigation.
  • Golden Gate Center for Spiritual Living
  • Community offering spiritual teachings and personal growth programs.
  • Howard Foster & Co
  • Investment advisory service specializing in securities and commodities.
  • Mary Hada
  • Specializes in eco-friendly gifts and personal care products made in the USA.
  • Ramone Yaciuk Rolfing
  • Structural integration and Rolfing therapy services.
  • Recover
  • Telehealth-based addiction treatment and recovery services.
  • State Farm Insurance
  • Provider of auto, home, life insurance and financial services.
  • United Markets
  • Independent grocery retailer offering organic and specialty foods.
Moderately walkable
70/100
Exceptionally drivable
100/100
Strong public transit
80/100
Fairly bikeable
50/100

About San Rafael/Larkspur

The largest city in Marin County, San Rafael is idyllically situated between San Francisco and the wine country. Home to China Camp State Park and Lucas Valley Preserve, and nestled at the foot of Mount Tamalpais, the area offers abundant outdoor recreation opportunities. Central Marin benefits from its proximity to San Francisco and offers a premier suburban lifestyle and excellent public school system.

The new SMART light rail train runs from the Sonoma County Airport throughout San Rafael to the Larkspur Ferry terminal, which provides daily service for San Francisco-bound commuters. U.S. Route 101 is the main artery for travel in the North Bay and provides access into San Francisco and north to Santa Rosa. The San Rafael-Richmond Bridge connects to the greater East Bay and Sacramento beyond.

Local professional service providers, several mature technology firms, and a growing hub of biotechnology-life science companies operate in the neighborhood, such as BioMarin Pharmaceutical, which employs more than 2,000 in San Rafael. Employers are attracted to the area’s highly educated workforce and affordability compared with San Francisco. Both residents and workers appreciate the neighborhood’s intangible benefits, from natural landscapes to quality public education.

Leasing Team

Leasing Team

James Kilpatrick, President, Chief Operating Officer
James Kilpatrick is the President of NAI Northern California. His career began in 1998 with a major national firm specializing in investment property brokerage where he received numerous achievement awards. He has been involved in investment transactions exceeding $1 Billion across most product categories and oversees the day to day operations, strategic expansion of the firm and large account management.

Mr. Kilpatrick is a San Francisco Bay Area native with ownership, management, syndication and debt structuring experience across most product types. He has had various positions from board of directors appointments to President of various real estate organizations. He has also been a regular contributing writer for newsletters and trade journals of organizations such as the Berkeley Property Owners Association (BPOA) and RHA (Rental Housing Association of northern Alameda county). He is a member of the Rental Housing Owners Group (RHO), the Investment Marketing Forum (IMF) and Investment Property Marketing Group (IPMG). In addition to the above, Mr. Kilpatrick has experience in distressed asset sales, expert witness work, portfolio valuations, condominium and subdivision work, bankruptcy and trustee’s sales, sale leasebacks and other more complicated transactions.
Seth Hubbert, Investment Advisor
Seth is an Investment Advisor at NAI Northern California, specializing in transacting multifamily assets in the Bay Area. Seth has a strong leadership, analytical, and service background, providing the highest-level value to clients.

Seth has grown and led several successful businesses, including Five Iron Financial, a real estate investment firm renovating distressed property and operating housing in high-growth regions in the United States. He also previously served as the CEO of Tech Exchange, providing 45,000 computers to students and families during the height of the pandemic.

Holding degrees in Physics and Education, Seth masterfully blends quantitative analysis with client guidance and support. When not immersed in real estate, you’ll find Seth coaching youth sports, serving on community boards, and volunteering at his children’s school.
Damon Gerstein, Investment Advisor
Damon Gerstein specializes in office, multifamily, and industrial real estate across the Bay Area. Born and raised in Marin County, CA, Damon has spent his life immersed in the region’s unique communities and dynamic market. His local knowledge, combined with his academic background, provides clients with both insight and strategy in navigating complex transactions. Damon earned his Bachelor of Science in Urban and Regional Development with a minor in Real Estate Development from the University of Arizona. This foundation equips him with a deep understanding of market analysis, urban planning, and investment strategy—tools he leverages to deliver value to his clients. At NAI NorCal, Damon is committed to learning from industry leaders while actively contributing to the team’s success. Outside of real estate, he is passionate about traveling and sports, enjoying everything from working out and snowboarding to hiking and exploring the outdoors.
Tim Marshall, Investment Advisory
Investment Advisor with a background in property management, operations, and client service. As founder of Marpensio LLC, Tim oversaw all aspects of property management including asset performance, tenant relations, leasing, and vendor coordination. Previous roles in operations and customer experience strengthened his leadership, process improvement, and client service skills.

Tim now applies this combined expertise to advising clients on commercial real estate investments. By leveraging market research and data-driven insights, he helps clients evaluate opportunities, maximize asset performance, and achieve long-term investment success with a client-first approach.
  • Listing ID: 40025593

  • Date on Market: 4/3/2026

  • Last Updated:

  • Address: 851 Irwin St, San Rafael, CA 94901

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