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Property profile & analytics
OFF-MARKET
Estimated value
$1,860,000
Office buildings
824 Healdsburg Ave, Healdsburg, CA 95448-3613
Individually Owned
5-yr Hold
~
Est. High Equity
Property ID
US09-0468354
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Year built
1955
Construction
WOOD FRAME
Total area
3,789 SF
Lot
0.53 ac (23,282 SF)
APN
002-032-025-000
UPID
US09-0468354
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
-
Daniel Cohn Wine Brewery & Distillery Big Box & Wholesale Store
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$2.22M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$1.88M
Blend (final)
Blend
$1.86M
Owner & transaction history
William James Williamson · 5 yrs held
William James Williamson
since 2020
Last sale
$1.9M
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$1.5M
+17.1%
Medical building
$1.4M
+11.7%
Retail stores
$1.3M
+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
$2,210,000
ML approach
$2,220,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$1,245,000
Current use
COMMERCIAL (GENERAL)
$1,460,000
Change: +17% · Conversion: Easy
MEDICAL BUILDING
$1,390,000
Change: +12% · Conversion: Easy
RETAIL STORES
$1,270,000
Change: +2% · Conversion: Moderate
AUTO REPAIR, GARAGE
$1,195,000
Change: -4% · Conversion: Difficult
Blend value · Realmo final
$1.86M
Range $1.67M – $2.05M · ±10% · vs last sale $1.85M (Dec 31 2020)
Last sale anchor
$1.85M
Dec 31 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
$491 / 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
$22,700
Tax year 2024
Assessed value
$1,963,234
Assessed 2024
Previous assessed
$1,963,234
+0.0% YoY
Effective rate
1.16%
On assessed value
Assessed land
$902,026
Assessed improvement
$1,061,208
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 (MULTI-STORY)
Status
Off-Market
Year built
1955
Construction
WOOD FRAME
Heating
NONE
Stories
2
Rooms
9
Bathrooms
2
Total area
3,789 SF
Lot
0.53 ac (23,282 SF)
APN
002-032-025-000
UPID
US09-0468354
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
$1.2M
COMMERCIAL (GENERAL)
Est. value
$1.5M
MEDICAL BUILDING
Est. value
$1.4M
RETAIL STORES
Est. value
$1.3M
AUTO REPAIR, GARAGE
Est. value
$1.2M
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
1955
Construction
WOOD FRAME
Heating
NONE
Stories
2
Rooms
9
Bathrooms
2
Lot
0.53 ac
Current owner
From public records · entity-resolved
William James Williamson
Individual
Mailing address
824 HEALDSBURG AVE, HEALDSBURG, CA 95448-3613
Mailing matches property
Yes
Owner-occupied
Yes
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
11 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Dec 9, 2024
—
William James Williamson
—
Deed
related
$1,202,500 · American Agcredit Aca
Dec 31, 2020
$1,850,000
William James Williamson
David H Tett
Grant Deed
$2,500 · Silicon Valley Bank
Jul 28, 2016
—
Tett,david H & C H Trust
—
Deed
related
$495,000 · Bank Of The West
Sep 1, 2010
—
Tett D H & C H Family Trust
Tett D H & C H Family Trust
Quit Claim Deed
related
—
May 3, 2006
—
David H Tett
Tett D H & C H 1993 Trust
Quit Claim Deed
related
—
Mar 8, 2005
$790,000
Tett David H & C H 1993 Trust
Stout Carol A Trust
Grant Deed
$740,000 · First Republic Bank
Feb 2, 2000
—
Stout Trust
Stout,robert
Quit Claim Deed
related
—
Feb 2, 2000
$425,000
Stout Trust
John E Molinari Estate
Trustees Deed
$361,250 · Washington Mutual Fsb
Feb 29, 1996
—
Molinari Trust
Molinari,lidia G
Quit Claim Deed
related
—
—
—
Tett,david H & C H Trust
—
Deed Of Trust
related
$495,000 · Bank Of The West
—
—
Tett D H & C H Family Trust
—
Deed Of Trust
related
$553,000 · First Republic Bank
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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