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Property profile & analytics
OFF-MARKET
Estimated value
$11,315,000
Office buildings
3100 Main St, Santa Monica, CA 90405
Individually Owned
37-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-6886415
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1986
Construction
WOOD
Total area
43,683 SF
Lot
0.44 ac (19,232 SF)
Zoning code
SMCM4*
APN
4288-006-015
UPID
US09-6886415
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
by Request
CAP Approach
CAP
$15.67M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$11.32M
Owner & transaction history
A Schwarzenegger · 37 yrs held
A Schwarzenegger
since 1989
3 recorded transactions
Zoning & alternative use
SMCM4* · Santa Monica, 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 Santa Monica submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Santa Monica 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
by Request
CAP Approach
CAP Return
Estimation
6%
$16,975,000
6.5%
$15,670,000
7%
$14,550,000
Blend value · Realmo final
$11.32M
Range $10.18M – $12.45M · ±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
$259 / 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
$167,139
Tax year 2024
Assessed value
$13,956,155
Assessed 2024
Previous assessed
$13,956,155
+0.0% YoY
Effective rate
1.20%
On assessed value
Assessed land
$4,951,970
Assessed improvement
$9,004,185
Applied tax rate
8.0000
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
1986
Construction
WOOD
Heating
NONE
Cooling
YES
Buildings
2
Stories
1
Total area
43,683 SF
Lot
0.44 ac (19,232 SF)
Zoning code
SMCM4*
APN
4288-006-015
UPID
US09-6886415
Jurisdiction
LOS ANGELES
Metro division
LOS ANGELES-LONG BEACH-GLENDALE, CA METROPOLITAN DIVISION
Zoning & alternative use
SMCM4* · Santa Monica, CA
Zoning SMCM4* · permitted uses
SMCM4* · Santa Monica, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Santa Monica. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1986
Construction
WOOD
Heating
NONE
Cooling
Yes
Stories
1
Buildings
2
Lot
0.44 ac
Current owner
From public records · entity-resolved
A Schwarzenegger
Individual
Free & Clear · 37 yrs held
Mailing address
16101 VENTURA BLVD STE #325, ENCINO, CA 91436-2515
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
1989
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jan 15, 1998
—
Main Street Plaza INC
—
Deed Of Trust
related
$6,100,000 · City National Bank
Apr 11, 1989
$3,298,000
A Schwarzenegger
Ehrin
Grant Deed
related
—
—
—
Arnold Schwarzenegger
—
Deed Of Trust
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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