851 Irwin Street

851 Irwin Street, San Rafael, CA 94901

Property Information

  • For Lease $2.28 - $2.85/SF/MO
  • Property Type Office
  • Property Size 28,634 SF
  • Lot Size 0.46 Acre
  • Building Class B
  • Year Built 1982
  • Date Updated May 20, 2026

Description

851 Irwin Street is a modern 28,634-square-foot three-story office building in San Rafael, California. With available suites spanning 150 to 5,000 square feet, tenants can claim as much space as needed and customize through a negotiable tenant improvement allowance. The property was recently purchased by a group of seasoned and successful real estate investors who completed a top-to-bottom renovation of the building and grounds, realizing the property's full potential.

Building renovations include the exterior, individual suites, lounge, kitchens, conference, common areas, bathrooms, and landscaping. Extensive glass lines provide the interior with abundant natural light, bringing the views of Mount Tamalpais — known as Mount Tam — San Rafael Hill, and the surrounding environs into the office. Xfinity Business Gigspeed Wi-Fi is available throughout the property. 851 Irwin Street has ample parking, including 20 covered and 50 uncovered spaces.

Adjacent to Highway 101 and a mile from the Interstate 580 interchange, this property receives visibility from over 151,470 vehicles traveling Highway 101 daily. Easily accessible, the office is steps from public transportation at the San Rafael Transit Center, connecting those to San Rosa. 851 Irwin Street is within easy walking distance of a wide array of nearby dining, shopping, and entertainment amenities within the Montecito Plaza and beyond.

851 Irwin Street is centrally located in the heart of Downtown San Rafael, an eclectic downtown business and shopping district in Marin County. Downtown San Rafael is lined by a lively blend of Victorian buildings and vibrant artistic landmarks, all surrounded by gorgeous scenery. San Rafael is a family-friendly suburban locale in the North Bay region, 30 minutes from San Francisco, and home to 61,158 residents.

Highlights

  • Ample On-Site Parking
  • Shared Kitchen and Conference Rooms
  • Building-wide WiFi

5 Spaces Available

1st Floor, Ste 105

Space Type

Office

Lease Rate

$2.85/SF/MO

Total Space

1,775 SF

Floor

1st

Available Date

Immediate

Lease Type

Modified Gross

Sublease

No

Room to work. Room to grow. Suite 105 offers a polished office layout ideal for a professional services firm, established team, or any business that needs private offices without sacrificing a collaborative feel. Multiple windowed private offices line a spacious shared corridor, each wrapped in floor-to-ceiling glass fronts with sleek black frames — giving the suite a modern, executive look while keeping the energy open and connected.

2nd Floor, Ste 208

Space Type

Office

Lease Rate

$2.37/SF/MO

Total Space

257 SF

Floor

2nd

Available Date

Immediate

Lease Type

Modified Gross

Sublease

No

  • Small space. Big moves. Suite 208 delivers a smart, focused workspace in the heart of San Rafael — perfectly sized for the solo practitioner, boutique firm, or growing startup that wants a real address without the overhead. A right-sized office where productivity is the only agenda.

2nd Floor, Ste 222

Space Type

Office

Lease Rate

$2.37/SF/MO

Total Space

80 SF

Floor

2nd

Available Date

Immediate

Lease Type

Modified Gross

Sublease

No

Suite 222 is the ultimate lean office — a private, dedicated space for the solo professional who just needs a focused place to get things done. No wasted square footage, no shared desks, no distractions. Just you and your work, in the heart of San Rafael.

2nd Floor, Ste 223

Space Type

Office

Lease Rate

$2.28/SF/MO

Total Space

151 SF

Floor

2nd

Available Date

Immediate

Lease Type

Modified Gross

Lease Term

From 1 To 15 Years

Sublease

No

Compact, polished, and priced to perform — Suite 223 is a 151 SF private office tucked into one of San Rafael's most accessible business addresses. Whether you're launching solo, running lean, or need a quiet professional base away from the home office, this suite delivers a clean, focused environment without the overhead of a larger footprint.

2nd Floor, Ste 225B

Space Type

Office

Lease Rate

$2.58/SF/MO

Total Space

132 SF

Floor

2nd

Available Date

Immediate

Lease Type

Modified Gross

Sublease

No

Suite 225B is a sharp little office for the professional who knows exactly what they need — a private space with a real address in San Rafael, without paying for square footage they'll never use. Ideal for a solo practitioner, therapist, consultant, or anyone building something great one focused day at a time.

Contacts

Seth Hubbert

NAI Norcal

Centralized Email

NAI Norcal

Location

Contact 851 Irwin Street
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