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Property profile & analytics
OFF-MARKET
Estimated value
$1,375,000
Warehouses
313 Mason St Healdsburg, CA 95448
Individually Owned
1-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-2378375
Property profile
Verified
Property type
Warehouses
Use group
WAREHOUSE, STORAGE
Year built
1948
Construction
TYPE NOT SPECIFIED
Total area
3,400 SF
Lot
0.27 ac (11,663 SF)
APN
002-292-018-000
UPID
US09-2378375
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
-
Caldwell Trouette Gen Contractor Construction Company General Contractor
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$1.38M
CAP Approach
CAP
$935k
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$1.38M
Owner & transaction history
Darrin A Martin · 1 yrs held
Darrin A Martin
since 2024
Last sale
$1.4M
6 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$1.3M
+92.2%
Medical building
$1.3M
+83.2%
Retail stores
$1.1M
+67.3%
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
$1,375,000
ML approach
$1,375,000
CAP Approach
CAP Return
Estimation
6%
$1,015,000
6.5%
$935,000
7%
$870,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$1,310,000
Change: +92% · Conversion: Difficult
MEDICAL BUILDING
$1,250,000
Change: +83% · Conversion: Difficult
RETAIL STORES
$1,140,000
Change: +67% · Conversion: Moderate
OFFICE BUILDING
$1,120,000
Change: +64% · Conversion: Difficult
AUTO REPAIR, GARAGE
$1,075,000
Change: +58% · Conversion: Easy
Blend value · Realmo final
$1.38M
Range $1.24M – $1.51M · ±10% · vs last sale $1.38M (Nov 1 2024)
Last sale anchor
$1.38M
Nov 1 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
$404 / 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
$969
Tax year 2024
Assessed value
$67,918
Assessed 2024
Previous assessed
$67,918
+0.0% YoY
Effective rate
1.43%
On assessed value
Assessed land
$29,428
Assessed improvement
$38,490
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
Warehouses
Use group
WAREHOUSE, STORAGE
Status
Off-Market
Year built
1948
Construction
TYPE NOT SPECIFIED
Heating
NONE
Cooling
NONE
Stories
1
Total area
3,400 SF
Lot
0.27 ac (11,663 SF)
APN
002-292-018-000
UPID
US09-2378375
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)
Est. value
$1.3M
MEDICAL BUILDING
Est. value
$1.3M
RETAIL STORES
Est. value
$1.1M
OFFICE BUILDING
Est. value
$1.1M
AUTO REPAIR, GARAGE
Est. value
$1.1M
COMMERCIAL (GENERAL)
MEDICAL BUILDING
RETAIL STORES
OFFICE BUILDING
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
1948
Construction
TYPE NOT SPECIFIED
Heating
NONE
Cooling
Yes
Stories
1
Lot
0.27 ac
Current owner
From public records · entity-resolved
Darrin A Martin
Individual
Mailing address
713 CORBETT AVE SAN FRANCISCO
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
6 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Nov 1, 2024
—
Darrin A Martin
Darrin A Martin
Intrafamily Transfer
related
—
Dec 20, 2023
—
Darrin A Martin
Darrin A Martin
Correction Deed
related
—
Oct 20, 2023
$1,375,000
Darrin A Martin
Rick Allen Daniels
Grant Deed
—
Dec 20, 2022
—
Rick Daniels
—
Deed
related
$208,000 · Michael Brook
Aug 8, 2022
—
Rick Allen Daniels
Barbara Bellagio
Grant Deed
—
Jul 16, 2012
—
Daniels Frank B Trust
Daniels,frank B
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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