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Property profile & analytics
OFF-MARKET
Estimated value
$585,000
Medical Office Space
1550 Professional Dr, Petaluma, CA 94954-6655
Trust Owned
13-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-1519634
Property profile
Verified
Property type
Medical Office Space
Use group
MEDICAL BUILDING
Year built
1997
Construction
WOOD
Total area
4,041 SF
Lot
1.11 ac (48,351 SF)
Zoning code
PUD
APN
136-111-068-000
UPID
US09-1519634
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
-
Lundergan Faye S MD Pediatrician Medical Clinic
-
Annadel Medical Group - Petaluma Professional Womens Health Physician
-
Annadel Medical Group - Petaluma Professional Pediatrics Medical Group
-
Dr. Helene Spivak Physician
-
Confidential Testing Center Std Testing Service
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$430k
CAP Approach
CAP
$780k
Comparable Approach
Comparable
$546k
Blend (final)
Blend
$585k
Owner & transaction history
River Marilyn C Living Trust · 13 yrs held
River Marilyn C Living Trust
since 2012
7 recorded transactions
Zoning & alternative use
PUD · Petaluma, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
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 Petaluma submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Petaluma 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
by Request
ML approach
$430,000
CAP Approach
CAP Return
Estimation
6%
$845,000
6.5%
$780,000
7%
$720,000
Blend value · Realmo final
$585k
Range $527k – $644k · ±10%
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
$145 / 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
$15,654
Tax year 2024
Assessed value
$1,408,902
Assessed 2024
Previous assessed
$1,408,902
+0.0% YoY
Effective rate
1.11%
On assessed value
Assessed land
$626,178
Assessed improvement
$782,724
Applied tax rate
3.0000
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
Medical Office Space
Use group
MEDICAL BUILDING
Status
Off-Market
Year built
1997
Construction
WOOD
Heating
NONE
Cooling
YES
Stories
1
Total area
4,041 SF
Lot
1.11 ac (48,351 SF)
Zoning code
PUD
APN
136-111-068-000
UPID
US09-1519634
Jurisdiction
SONOMA
Zoning & alternative use
PUD · Petaluma, CA
Zoning PUD · permitted uses
PUD · Petaluma, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Petaluma. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1997
Construction
WOOD
Heating
NONE
Cooling
Yes
Stories
1
Lot
1.11 ac
Current owner
From public records · entity-resolved
River Marilyn C Living Trust
Trust
Free & Clear · 13 yrs held
Mailing address
121 PEPPER AVE, LARKSPUR, CA 94939-2172
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2012
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
10 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 29, 2012
—
River Marilyn C Living Trust
River,marilyn C
Quit Claim Deed
related
—
Sep 10, 1998
$676,500
Petaluma Health Care District
Young American Homes INC
Grant Deed
—
Dec 24, 1997
$900,000
River,marilyn C
Young American Homes INC
Trustees Deed
$555,000 · Exchange Bank
Dec 24, 1997
—
River,marilyn C
Sadowski,donald F
Trustees Deed
related
—
Feb 5, 1997
$1,867,454
America Homes Young
Oneel,robert W & Eileen W
Grant Deed
related
—
Jan 12, 1996
—
Robert W Oneel
—
Grant Deed
related
$960,000 · Summit Savings Bank
Jul 25, 1995
$647,500
Robert W Oneel
Gravenstein Properties
Grant Deed
—
—
—
Young American Homes INC
—
Deed Of Trust
related
$110,000 · Individual
—
—
Young American Homes INC
—
Deed Of Trust
related
$560,000 · Roza & Co
—
—
Robert W Oneel
—
Deed Of Trust
related
$200,000 · Corricks INC Pst
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.
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