Office
New
For Sale
$798,000
660 N Diamond Bar Ste 100, Diamond Bar, CA 91765
Office property with an established 1982 construction date.
Property Size1,200 SF
Days on Market3
Property Features for 660 N Diamond Bar Ste 100
General Information
Standard status
Active
Size
1,200 SF
Property subtype
Commercial
Additional Details
Public Transit
Yes
Building Details
Building Size
1,200 SF
Year Built
1982
Listed By:
Yuying Lin
(909) 303-4500
Source:
Elliman
Added: Sep 1
Last Checked: Sep 2 at 8:57PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Yuying Lin
Investment Insights
Based on property information with market context.
This office property was constructed in 1982 and is identified as Suite 100 at 660 N Diamond Bar Ste 100 in Diamond Bar, California. Walk Score is 51, Transit Score is 43, and Bike Score is 18, indicating somewhat walkable, somewhat transit-accessible, and somewhat bikeable conditions.
Key Highlights
- Constructed in 1982
- Located at 660 N Diamond Bar Ste 100, Diamond Bar, CA 91765
- Walk Score: 51, Somewhat Walkable
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$26,231
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.29%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$524,620
$524.6K
Cap Rate 7%
$374,729
$374.7K
Cap Rate 9%
$291,456
$291.5K
Market Conditions
NOI Build-Up for 1,200 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$46.1K $38.40/SF
− Vacancy
−$11.1K −$9.25/SF
EGI
$35.0K $29.15/SF
− OpEx
−$8.7K −$7.29/SF
NOI
$26.2K $21.86/SF
Area
Los Angeles County, CA
Vacancy
24.10%
Lease Rate
$38.40 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$524,620
Cap Rate 7%
$374,729
Cap Rate 9%
$291,456
Alternative Uses
Best Use
Office B
$374.7K
$327.9K – $437.2K
NOI $26,231 @ 7.0% cap · market cap 3.29%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$642.5K
$562.2K – $749.6K
NOI $44,973 @ 7.0% cap · market cap 5.64%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
730
Businesses Nearby
Explore this area
Business Placement
Demographics for 91765, CA
46,449
Population
16,056
Households
2.9
Avg Household Size
44
Median Age
53%
College-Educated
93%
High-School Grad
18.6 sq mi
ZIP Area
2,497
Density / Sq Mi
$104,737
Median Household Income
$55,141
Median Earnings
$2,395
Median Rent
$878,900
Median Home Value
Market
Vacancy Rate% for Office in West region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Office building - Office property with an established 1982 construction date.
Where is this office building located?
The property is located at 660 N Diamond Bar Ste 100 Diamond Bar, CA.
What is the asking price?
The asking price for this property is $798,000.
What are key features of this property?
This property features: Constructed in 1982; Located at 660 N Diamond Bar Ste 100, Diamond Bar, CA 91765; Walk Score: 51, Somewhat Walkable
