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Class A Office Space Downtown Santa Rosa 640 3rd St 2,750 - 5,400 SF of Office Space Available in Santa Rosa, CA 95404

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All Available Space(1)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Condition
  • Available
  • 2nd Floor, Ste B
  • 2,750-5,400 SF
  • 3-10 Years
  • $16.20 /SF/YR $1.35 /SF/MO $87,480 /YR $7,290 /MO
  • Office
  • Full Build-Out
  • April 01, 2026

Second Floor: 2,750- 5,400+/- sf • Second-floor professional office space with primary building signage elevated • On the second-floor of the Mechanics Bank building at 3rd x D St Downtown Santa Rosa. • Professional Improved Offices • Elevator Served • Located in the Heart of the Downtown Financial District • Adjacent to 3 Public Parking Garages • Building Front-Area Signage • Available April 2026 $ 1 . 3 5 / P S F T G R O S S R E N T P L U S J A N I T O R I A L , P G&E , T R A S H , W A T E R T E R M S: 3-10 year lease term available. The rent quote is for the area as it is configured. The rent quoted includes: base year cost of common area maintenance expenses, real estate taxes, insurance, exterior janitorial, HVAC and roof services. Rent quote does not include each tenant’s interior janitorial or share of water, trash, or PG&E.

  • Listed rate may not include certain utilities, building services and property expenses
Space Size Term Rental Rate Space Use Condition Available
2nd Floor, Ste B 2,750-5,400 SF 3-10 Years $16.20 /SF/YR $1.35 /SF/MO $87,480 /YR $7,290 /MO Office Full Build-Out April 01, 2026

2nd Floor, Ste B

Size
2,750-5,400 SF
Term
3-10 Years
Rental Rate
$16.20 /SF/YR $1.35 /SF/MO $87,480 /YR $7,290 /MO
Space Use
Office
Condition
Full Build-Out
Available
April 01, 2026

2nd Floor, Ste B

Size 2,750-5,400 SF
Term 3-10 Years
Rental Rate $16.20 /SF/YR
Space Use Office
Condition Full Build-Out
Available April 01, 2026

Second Floor: 2,750- 5,400+/- sf • Second-floor professional office space with primary building signage elevated • On the second-floor of the Mechanics Bank building at 3rd x D St Downtown Santa Rosa. • Professional Improved Offices • Elevator Served • Located in the Heart of the Downtown Financial District • Adjacent to 3 Public Parking Garages • Building Front-Area Signage • Available April 2026 $ 1 . 3 5 / P S F T G R O S S R E N T P L U S J A N I T O R I A L , P G&E , T R A S H , W A T E R T E R M S: 3-10 year lease term available. The rent quote is for the area as it is configured. The rent quoted includes: base year cost of common area maintenance expenses, real estate taxes, insurance, exterior janitorial, HVAC and roof services. Rent quote does not include each tenant’s interior janitorial or share of water, trash, or PG&E.

  • Listed rate may not include certain utilities, building services and property expenses

Property Facts

Building Type
Office
Year Built
1972
Building Height
2 Stories
Building Size
10,540 SF
Building Class
B
Typical Floor Size
5,270 SF

Select Tenants

  • Floor
  • Tenant Name
  • Industry
  • 1st
  • Ayrelome Inc
  • Services
  • Unknown
  • Botaniteck LLC
  • Public Administration
  • Unknown
  • Launch Pad LLC
  • Public Administration
  • 1st
  • Mechanics Bank
  • Finance and Insurance
  • Unknown
  • Ronald P Sichel
  • -
  • 1st
  • Santa Rosa Strength
  • Services
  • 1st
  • Shapiro Galvin Shapiro & Moran
  • Professional, Scientific, and Technical Services
  • 1st
  • The Law And Mediation Offices Of Thomas D. Wright
  • Professional, Scientific, and Technical Services

Attachments

640 Third St
Walk Score®
Walker's Paradise (99)
Bike Score®
Very Bikeable (76)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®
  • Listing ID: 39421579

  • Date on Market: 2/12/2026

  • Last Updated:

  • Address: 640 3rd St, Santa Rosa, CA 95404

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