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Property profile & analytics
OFF-MARKET
Estimated value
$685,000
Office buildings
640 Healdsburg Ave, Healdsburg, CA 95448-3609
Trust Owned
6-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-0436567
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1962
Construction
WOOD
Total area
1,953 SF
Lot
0.26 ac (11,236 SF)
APN
002-092-029-000
UPID
US09-0436567
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
-
Dr. Anthony Soria Physician
-
Barth Vision & Optical Ophthalmologist (Bike/Boat/Book/etc) Store
-
Dr. Gary P. Barth, MD Ophthalmologist
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$835k
CAP Approach
CAP
$455k
Comparable Approach
Comparable
$593k
Blend (final)
Blend
$685k
Owner & transaction history
Soria,a F & Anderson-sor Trust · 6 yrs held
Soria,a F & Anderson-sor Trust
since 2020
Last sale
$700,000
6 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$755,000
+17.1%
Medical building
$720,000
+11.7%
Retail stores
$655,000
+2.0%
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 Healdsburg submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Healdsburg 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
$835,000
ML approach
$835,000
CAP Approach
CAP Return
Estimation
6%
$490,000
6.5%
$455,000
7%
$420,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$645,000
Current use
COMMERCIAL (GENERAL)
$755,000
Change: +17% · Conversion: Easy
MEDICAL BUILDING
$720,000
Change: +12% · Conversion: Easy
RETAIL STORES
$655,000
Change: +2% · Conversion: Moderate
AUTO REPAIR, GARAGE
$615,000
Change: -4% · Conversion: Difficult
Blend value · Realmo final
$685k
Range $617k – $754k · ±10% · vs last sale $700k (Apr 1 2020)
Last sale anchor
$700k
Apr 1 2020
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
$351 / 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
$10,361
Tax year 2024
Assessed value
$885,844
Assessed 2024
Previous assessed
$885,844
+0.0% YoY
Effective rate
1.17%
On assessed value
Assessed land
$278,404
Assessed improvement
$607,440
Applied tax rate
2.0000
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1962
Construction
WOOD
Heating
FLOOR/WALL FURNACE
Cooling
YES
Stories
1
Rooms
5
Bathrooms
1
Total area
1,953 SF
Lot
0.26 ac (11,236 SF)
APN
002-092-029-000
UPID
US09-0436567
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
OFFICE BUILDING Current
Est. value
$645,000
COMMERCIAL (GENERAL)
Est. value
$755,000
MEDICAL BUILDING
Est. value
$720,000
RETAIL STORES
Est. value
$655,000
AUTO REPAIR, GARAGE
Est. value
$615,000
OFFICE BUILDING Current
COMMERCIAL (GENERAL)
MEDICAL BUILDING
RETAIL STORES
AUTO REPAIR, GARAGE
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
1962
Construction
WOOD
Heating
FLOOR/WALL FURNACE
Cooling
Yes
Stories
1
Rooms
5
Bathrooms
1
Lot
0.26 ac
Current owner
From public records · entity-resolved
Soria,a F & Anderson-sor Trust
Trust
Mailing address
1131 FRST GLN WAY, SANTA ROSA, CA 95404-6826
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
6 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Apr 1, 2020
—
Soria,a F & Anderson-sor Trust
Soria A F & Anderson-s Trust
Quit Claim Deed
related
$480,000 · Redwood Cu
Mar 19, 2018
—
Anthony,f Soria Trust
Soria,anthony F & June E A
Quit Claim Deed
related
—
Oct 9, 2009
$700,000
Anthony F Soria
Abbott D A & P M S 2001 Trust
Grant Deed
$355,000 · Redwood Cu
Dec 19, 2001
—
Phillips-abbott Trust
Abbott,david A
Quit Claim Deed
related
—
Oct 1, 1999
$340,000
Abbott,david A
Miller Trust
Trustees Deed
$90,000 · Westamerica Bank
Oct 1, 1999
—
David A Abbott
Phillips-abbott,martha S
Quit Claim Deed
related
—
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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