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Property profile & analytics
OFF-MARKET
Estimated value
$5,935,000
Office buildings
509 Saint Charles St San Andreas, CA 95249-9701
Entity Owned
1-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-1240916
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2001
Construction
WOOD
Total area
31,271 SF
Lot
3.33 ac (145,054 SF)
Zoning code
C1
APN
042-034-013-000
UPID
US09-1240916
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
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$5.96M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$6.14M
Blend (final)
Blend
$5.94M
Owner & transaction history
County Of Calaveras · 1 yrs held
County Of Calaveras
since 2025
Last sale
$5.5M
7 recorded transactions
Zoning & alternative use
C1 · San Andreas, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Retail stores
$5.2M
+12.5%
Commercial (general)
$5.0M
+6.6%
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 San Andreas submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs San Andreas 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
$5,830,000
ML approach
$5,960,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$4,660,000
Current use
RETAIL STORES
$5,245,000
Change: +13% · Conversion: Moderate
COMMERCIAL (GENERAL)
$4,970,000
Change: +7% · Conversion: Easy
Blend value · Realmo final
$5.94M
Range $5.34M – $6.53M · ±10% · vs last sale $5.50M (Nov 30 2021)
Last sale anchor
$5.50M
Nov 30 2021
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
$190 / 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
$62,894
Tax year 2024
Assessed value
$5,690,988
Assessed 2024
Previous assessed
$5,690,988
+0.0% YoY
Effective rate
1.11%
On assessed value
Assessed land
$754,290
Assessed improvement
$4,936,698
Applied tax rate
51.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
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
2001
Construction
WOOD
Heating
NONE
Stories
2
Bathrooms
1
Total area
31,271 SF
Lot
3.33 ac (145,054 SF)
Zoning code
C1
APN
042-034-013-000
UPID
US09-1240916
Jurisdiction
CALAVERAS
Zoning & alternative use
C1 · San Andreas, CA
Zoning C1 · permitted uses
C1 · San Andreas, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
San Andreas. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$4.7M
RETAIL STORES
Est. value
$5.2M
COMMERCIAL (GENERAL)
Est. value
$5.0M
OFFICE BUILDING Current
RETAIL STORES
COMMERCIAL (GENERAL)
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
2001
Construction
WOOD
Heating
NONE
Stories
2
Bathrooms
1
Lot
3.33 ac
Current owner
From public records · entity-resolved
County Of Calaveras
Entity
Free & Clear · 1 yrs held
Mailing address
5370 BLACK OAK DR, STOCKTON, CA 95212-2533
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2025
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
Apr 30, 2025
$5,900,000
County Of Calaveras
Bgk Real Estate Holdings LLC
Grant Deed
—
Nov 30, 2021
$5,500,000
Bgk Real Estate Holdings LLC
Dick J Randall
Grant Deed
$2,750,000 · Five Star Bank
Jul 7, 2020
—
Dick,j Randall & Carolyn Trust
J R LLC
Quit Claim Deed
—
Jan 31, 2020
—
Dick,j Randall & Carolyn Trust
JR LLC
Quit Claim Deed
—
Apr 4, 2003
$4,070,000
J R LLC
Randall,tr
Grant Deed
$4,200,000 · Randall Trust
Dec 31, 1997
$200,000
Randall Trust
Union Safe Deposit Bank
Grant Deed
—
Dec 20, 1996
$398,000
Union Safe Deposit Bank
B & A Developers Co
Trustees 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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