Four-Unit Quadplex with Detached
For Sale
$1,175,000
824 Humboldt St, Santa Rosa, CA 95404
Fully occupied four-unit property across two buildings, with fenced yards, laundry hookups, and recent capital improvements.
Property Size3,192 SF
Lot Size0.17 Acres
Days on Market10
Property Features for 824 Humboldt St
General Information
Standard status
Active
Size
3,192 SF
Lot size
0.17 Acres
Property subtype
Investment
Occupancy
100%
Units
Unit Mix
4 x 1BR/1BA
Multifamily Units
4
Additional Details
Gross Income
$99,300
Amenities
washer/dryer hookups
fenced yards
detached garage
Building Details
Building Size
3,192 SF
Year Built
1915
Buildings
2
Units
4
Listing Agency:
COLDWELL BANKER REALTY
(707) 235-9123
Listed By:
Adriana Buenrostro
(707) 235-9123
Source:
Elliman
Added: Aug 22
Changed: Aug 30
Last Checked: Aug 30 at 3:15PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of COLDWELL BANKER REALTY
Investment Insights
Based on property information with market context.
This four-unit residential income property at 824 Humboldt St. includes two buildings on a 7,280 square-foot corner lot. Each unit offers one bedroom and one bathroom, along with in-unit washer/dryer hookups and a fenced yard. A detached garage and driveway provide additional on-site functionality. The property was built in 1915 and is fully occupied.
Recent work includes a new roof on one building, roof repairs on the other, new heating systems in two units, and improvements to unit 824 with an updated kitchen countertop, backsplash, flooring, bedroom carpet, and full bathroom. New fencing and landscaping were completed in 2024. Tenant-paid gas, electricity, and trash support a straightforward operating structure, while the property's location in Santa Rosa's Junior College neighborhood places it within a bikeable area with some transit service.
Recent work includes a new roof on one building, roof repairs on the other, new heating systems in two units, and improvements to unit 824 with an updated kitchen countertop, backsplash, flooring, bedroom carpet, and full bathroom. New fencing and landscaping were completed in 2024. Tenant-paid gas, electricity, and trash support a straightforward operating structure, while the property's location in Santa Rosa's Junior College neighborhood places it within a bikeable area with some transit service.
Key Highlights
- Four units, each with 1 bedroom and 1 bathroom
- 7,280 square‑foot corner lot with two buildings
- Detached garage and driveway serve the property
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$62,078
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
5.28%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,241,560
$1.2M
Cap Rate 7%
$886,829
$886.8K
Cap Rate 9%
$689,756
$689.8K
Market Conditions
NOI Build-Up for 3,192 SF
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.
Gross rent
$93.8K $29.40/SF
− Vacancy
−$5.2K −$1.62/SF
EGI
$88.7K $27.78/SF
− OpEx
−$26.6K −$8.33/SF
NOI
$62.1K $19.45/SF
Area
Santa Rosa, CA
Vacancy
5.50%
Lease Rate
$29.40 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,241,560
Cap Rate 7%
$886,829
Cap Rate 9%
$689,756
Alternative Uses
Best Use
Multifamily LT 5
$886.8K
$776.0K – $1.03M
NOI $62,078 @ 7.0% cap · market cap 5.28%
Second Best
Apartment 5plus
$796.5K
$697.0K – $929.3K
NOI $55,756 @ 7.0% cap · market cap 4.75%
Theoretical Best
—
—
same as Best Use
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
4
Residential units
100%
Occupancy
Location Intelligence
Trade Area within ½ mile
3,000
Businesses Nearby
Explore this area
Business Placement
Demographics for 95404, CA
38,034
Population
16,850
Households
2.3
Avg Household Size
43
Median Age
45%
College-Educated
90%
High-School Grad
75.4 sq mi
ZIP Area
504
Density / Sq Mi
$102,802
Median Household Income
$57,388
Median Earnings
$1,890
Median Rent
$865,900
Median Home Value
Market
Vacancy Rate% for Multifamily in West region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Quadplex - Fully occupied four-unit property across two buildings, with fenced yards, laundry hookups, and recent capital improvements.
Where is this quadplex located?
The property is located at 824 Humboldt St Santa Rosa, CA.
What is the asking price?
The asking price for this property is $1,175,000.
What are key features of this property?
This property features: Four units, each with 1 bedroom and 1 bathroom; 7,280 square‑foot corner lot with two buildings; Detached garage and driveway serve the property
