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Property profile & analytics
OFF-MARKET
Estimated value
$3,425,000
Office buildings
1950 Brea Cyn Rd Diamond Bar, CA 91765-4015
Entity Owned
4-yr Hold
Free & Clear
Property ID
US09-9314849
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1980
Construction
WOOD
Total area
9,230 SF
Lot
1 ac (43,468 SF)
Zoning code
LCC2DP*
APN
8765-001-008
UPID
US09-9314849
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
$3.31M
CAP Approach
CAP
$2.45M
Comparable Approach
Comparable
$4.44M
Blend (final)
Blend
$3.43M
Owner & transaction history
Riley 336 LLC · 4 yrs held
Riley 336 LLC
since 2022
Last sale
$3.5M
6 recorded transactions
Zoning & alternative use
LCC2DP* · Diamond Bar, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Neighborhood: shopping center
$5.6M
+19.4%
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 Diamond Bar submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Diamond Bar 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
$3,480,000
ML approach
$3,305,000
CAP Approach
CAP Return
Estimation
6%
$2,650,000
6.5%
$2,445,000
7%
$2,270,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$4,705,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$5,615,000
Change: +19% · Conversion: Difficult
MEDICAL BUILDING
$4,195,000
Change: -11% · Conversion: Easy
Blend value · Realmo final
$3.43M
Range $3.08M – $3.77M · ±10% · vs last sale $3.46M (May 17 2022)
Last sale anchor
$3.46M
May 17 2022
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
$371 / 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
$47,824
Tax year 2024
Assessed value
$3,599,783
Assessed 2024
Previous assessed
$3,599,783
+0.0% YoY
Effective rate
1.33%
On assessed value
Assessed land
$2,198,365
Assessed improvement
$1,401,418
Applied tax rate
10.0000
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
1980
Construction
WOOD
Heating
NONE
Cooling
YES
Stories
1
Units
1
Total area
9,230 SF
Lot
1 ac (43,468 SF)
Zoning code
LCC2DP*
APN
8765-001-008
UPID
US09-9314849
Jurisdiction
LOS ANGELES
Metro division
LOS ANGELES-LONG BEACH-GLENDALE, CA METROPOLITAN DIVISION
Zoning & alternative use
LCC2DP* · Diamond Bar, CA
Zoning LCC2DP* · permitted uses
LCC2DP* · Diamond Bar, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Diamond Bar. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$4.7M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$5.6M
MEDICAL BUILDING
Est. value
$4.2M
OFFICE BUILDING Current
NEIGHBORHOOD: SHOPPING CENTER
MEDICAL BUILDING
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
1980
Construction
WOOD
Heating
NONE
Cooling
Yes
Stories
1
Units
1
Lot
1 ac
Current owner
From public records · entity-resolved
Riley 336 LLC
Entity
Free & Clear · 4 yrs held
Mailing address
1950 S BREA CYN RD, DIAMOND BAR, CA 91765-4015
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2022
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
Jan 8, 2026
—
Captan Well LLC
—
Deed
related
$2,205,000 · Open Bank
Jun 2, 2022
—
Riley 336 LLC
Plaza Diamond Bar Partners LLC
Re-recorded Document
related
—
May 17, 2022
$3,460,000
Captan Well LLC
Riley336 LLC
Grant Deed
$2,422,000 · Ctbc Bank Corp USA
May 17, 2022
—
Riley 336 LLC
Plaza Diamond Bar Partners LLC
Grant Deed
—
Jul 9, 2015
—
Plaza Diamond Bar Partners Holdings
Plaza Diamond Bar Partners LLC
Quit Claim Deed
related
$11,000,000 · Rialto Mortgage Finance LLC
Jun 19, 1998
—
Plaza Diamond Bar Partners LLC
Bankers Trust Co Trustee
Grant Deed
$5,200,000 · Credit Suisse First Boston Mtg
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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