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Property profile & analytics
OFF-MARKET
Office buildings
680 Brea Cyn Rd Ste 258, Diamond Bar, CA 91789-3007
Entity Owned
2-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-9954984
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2015
Construction
WOOD
Total area
1,470 SF
Lot
0.95 ac (41,494 SF)
Zoning code
LCM1 1/2*
APN
8719-010-030
UPID
US09-9954984
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
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
by Request
Owner & transaction history
Dctsd LLC · 2 yrs held
Dctsd LLC
since 2023
5 recorded transactions
Zoning & alternative use
LCM1 1/2* · Diamond Bar, 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 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
CAP Approach
Comparable Approach
Alternative Use
Get a detailed, property-specific estimation — fast and free
Price per SF
Sale + rent benchmarks
Subject property
—
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
$9,686
Tax year 2024
Assessed value
$764,127
Assessed 2024
Previous assessed
$764,127
+0.0% YoY
Effective rate
1.27%
On assessed value
Assessed land
$189,637
Assessed improvement
$574,490
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
2015
Construction
WOOD
Heating
NONE
Total area
1,470 SF
Lot
0.95 ac (41,494 SF)
Zoning code
LCM1 1/2*
APN
8719-010-030
UPID
US09-9954984
Jurisdiction
LOS ANGELES
Metro division
LOS ANGELES-LONG BEACH-GLENDALE, CA METROPOLITAN DIVISION
Zoning & alternative use
LCM1 1/2* · Diamond Bar, CA
Zoning LCM1 1/2* · permitted uses
LCM1 1/2* · 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.
Building & site characteristics
From public records
Year built
2015
Construction
WOOD
Heating
NONE
Lot
0.95 ac
Current owner
From public records · entity-resolved
Dctsd LLC
Entity
Free & Clear · 2 yrs held
Mailing address
3104 GIANT FRST LOOP, CHINO HILLS, CA 91709-1508
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2023
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 31, 2023
—
Dctsd LLC
Richard G Feith SR.
Grant Deed
—
Jul 2, 2018
—
Feith Family Trust
Dctsd LLC
Quit Claim Deed
related
—
Oct 31, 2017
—
Dctsd LLC
Feith Family Trust
Quit Claim Deed
related
—
Sep 21, 2017
$685,000
Richard G Felth SR.
Roger Chang
Grant Deed
$513,750 · Us Bank NA
Aug 26, 2014
$618,500
Roger Chang
Brea Canyon Investment LLC
Grant Deed
—
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.
Try Rey
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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