451 College Avenue, Santa Rosa, CA 95401
SINGLE_FAMILY - Santa Rosa, CA
- Added:
- May 24, 2026
- Days on Market:
- 19
- Last Refresh:
- Jun 11 at 11:06 pm
Property Features for 451 College Avenue
General Information
- Property type
- Residential
- Property subtype
- Office
- Parking
- 7
- Parking features
- Open
- Standard status
- Active
- APN
- 180760069000
- Lot size
- 0.16 Acres
Utilities
- Utilities
- Cable Available
- Sewer type
- Public Sewer
- Heating system
- Central
- Cooling system
- Multi Units, Wall Unit(s)
- Water source
- Public
Building Details
- Year built
- 1946
- Floors in Building
- 2
- Flooring type
- Tile, Vinyl, Combo of materials, Carpet
- Building materials
- Stucco, Wood
- Roof type
- Composition, Flat, Shingle
Listing agent Todd M Bertolone License #01024983 (707) 545-1442
Listing office Bertolone Realty 1206 Fourth St, Santa Rosa, CA (707) 545-1442
Listing date May 24, 2026
Copyright © 2026 Bay Area Real Estate Information Services, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
HighLights
- Approximately 3,333 SF office building with 7 separate offices and a large conference area
- Atrium area with fountain plus mail room, kitchen area, office storage/equipment room, and 2 half baths
- Located near Mendocino Ave and College Ave and just a couple of blocks from Hwy 101 in Santa Rosa
- Parking for 7 vehicles with ally access
- Built in 1946; roofing includes composition, flat, and shingle types
- Central heating and cooling with wall unit(s); public utilities include cable available, public water, and public sewer
Overview
The property is located at 451 College Avenue in Santa Rosa, just a few blocks from downtown. It sits near the corner of Mendocino Avenue and College Avenue, and is reported to be only a couple of blocks from Highway 101.
For buyers and tenants seeking an established office setting, the combination of multiple private rooms, a dedicated conference space, and supporting areas like mail and storage can support a range of professional uses. On-site parking is provided with seven stalls and alley access, helping accommodate everyday staff and visitors.
Local Financial Insights For Office B
Simulate Cap Rate and NOI
NOI Build-Up
- Vacancy
- income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
- EGI (Effective Gross Income)
- gross rent minus vacancy losses — the realistic income before paying operating costs.
- OpEx (Operating Expenses)
- recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
- NOI (Net Operating Income)
- income a property generates after operating costs but before financing and taxes.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $74.0k | $22.20 |
| − Vacancy | −$11.2k | −$3.37 |
| EGI | $62.7k | $18.83 |
| − OpEx | −$15.7k | −$4.71 |
| NOI | $47.1k | $14.12 |
Alternative Uses
Current Use by Public Records
Location Insight
- Map
- Local Demand
- City
- Santa Rosa
- County
- Sonoma
- State
- California
- Longitude
- -122.7185283
- Latitude
- 38.4458004
