New search
Property profile & analytics
OFF-MARKET
Estimated value
$525,000
Industrial properties
850 3rd St Santa Rosa, CA 95404-4529
Individually Owned
2-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-1263507
Property profile
Verified
Property type
Industrial properties
Use group
MIXED USE (COMMERCIAL/INDUSTRIAL)
Year built
1906
Construction
WOOD
Total area
2,153 SF
Lot
0.11 ac (4,852 SF)
APN
009-062-012-000
UPID
US09-1263507
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Bean Warren S PhD Physician Medical Clinic
-
Paula Solomon, Ph.D. Physician Medical Clinic
-
Rob Nelson, Tapping the Matrix Counselor Training Centre
-
Law Offices of Michele M. Poteracke Law Firm
-
Cathy Beardsley MFT Physician
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$525k
CAP Approach
CAP
$380k
Comparable Approach
Comparable
$468k
Blend (final)
Blend
$525k
Owner & transaction history
Erwin Guerin · 2 yrs held
Erwin Guerin
since 2024
Last sale
$525,000
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Medical building
$790,000
+28.4%
Office building
$625,000
+1.2%
Auto repair, garage
$620,000
+0.7%
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Santa Rosa submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Santa Rosa submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$525,000
ML approach
$525,000
CAP Approach
CAP Return
Estimation
6%
$410,000
6.5%
$380,000
7%
$350,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$615,000
Current use
MEDICAL BUILDING
$790,000
Change: +28% · Conversion: Easy
OFFICE BUILDING
$625,000
Change: +1% · Conversion: Easy
AUTO REPAIR, GARAGE
$620,000
Change: +1% · Conversion: Difficult
RETAIL STORES
$600,000
Change: -3% · Conversion: Easy
Blend value · Realmo final
$525k
Range $473k – $578k · ±10% · vs last sale $525k (May 9 2024)
Last sale anchor
$525k
May 9 2024
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$244 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$5,026
Tax year 2024
Assessed value
$432,690
Assessed 2024
Previous assessed
$432,690
+0.0% YoY
Effective rate
1.16%
On assessed value
Assessed land
$117,949
Assessed improvement
$314,741
Applied tax rate
4.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Industrial properties
Use group
MIXED USE (COMMERCIAL/INDUSTRIAL)
Status
Off-Market
Year built
1906
Construction
WOOD
Heating
NONE
Cooling
YES
Stories
2
Units
1
Rooms
5
Bathrooms
2
Total area
2,153 SF
Lot
0.11 ac (4,852 SF)
APN
009-062-012-000
UPID
US09-1263507
Jurisdiction
SONOMA
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$615,000
MEDICAL BUILDING
Est. value
$790,000
OFFICE BUILDING
Est. value
$625,000
AUTO REPAIR, GARAGE
Est. value
$620,000
RETAIL STORES
Est. value
$600,000
COMMERCIAL (GENERAL) Current
MEDICAL BUILDING
OFFICE BUILDING
AUTO REPAIR, GARAGE
RETAIL STORES
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1906
Construction
WOOD
Heating
NONE
Cooling
Yes
Stories
2
Units
1
Rooms
5
Bathrooms
2
Lot
0.11 ac
Current owner
From public records · entity-resolved
Erwin Guerin
Individual
Mailing address
3625 HOEN AVE, SANTA ROSA, CA 95405-7653
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
7 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
May 9, 2024
$525,000
Erwin Guerin
Paula Downing
Grant Deed
—
Nov 27, 2002
—
Paula Downing
Altenberg,george B
Quit Claim Deed
related
—
Dec 4, 1997
$114,000
George Altenberg
World Savings Bank
Grant Deed
$113,600 · World Savings Bank
Sep 5, 1997
$137,950
World Savings Bank
Young,charles S & Lynn S
Trustees Deed
related
—
—
—
Lynn S Young
—
Deed Of Trust
related
$32,963 · Dunn Vergene B
—
—
Lynn S Young
—
Deed Of Trust
related
$50,000 · Young Mitzi
—
—
George Altenberg
—
Deed Of Trust
related
$50,000 · Ziff Trust
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 850 3rd St?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
