Duplex With Detached
New
For Sale
$899,999
513 Williamson Ave, Fullerton, CA 92832
Two separate residences share one lot, with individual utility metering and garage parking for both households.
Property Size2,050 SF
Price / SF$439.02
Days on Market5
Property Features for 513 Williamson Ave
General Information
Standard status
Active
Size
2,050 SF
Property subtype
Multi-Family
Listing Agency:
(949) 449-2770
Listed By:
Anvil Real Estate
(949) 449-2770
Source:
Anvilreinc
Added: Aug 26
Changed: Aug 29
Last Checked: Aug 29 at 3:11PM
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 Anvil Real Estate
Investment Insights
Based on property information with market context.
Located at 513 Williamson Ave in Fullerton, this duplex comprises two detached single-family residences on one lot totaling 2,050 square feet. The larger home offers 3 bedrooms and 2 baths with a 2-car garage, while the second residence includes 2 bedrooms, 1 bath, and a detached 1-car garage. Both homes are occupied by tenants.
Gas and electricity are separately metered for each residence, and tenants are responsible for their respective utility costs. The property is near Downtown Fullerton restaurants and entertainment, along with Costco, theaters, shopping, and other daily conveniences. Its two-home configuration provides distinct living spaces within one residential income property.
Gas and electricity are separately metered for each residence, and tenants are responsible for their respective utility costs. The property is near Downtown Fullerton restaurants and entertainment, along with Costco, theaters, shopping, and other daily conveniences. Its two-home configuration provides distinct living spaces within one residential income property.
Key Highlights
- Two detached single‑family homes on one lot
- 2,050 square feet with a 3‑bedroom, 2‑bath home and a 2‑bedroom, 1‑bath home
- Larger residence includes a 2‑car garage
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
$37,091
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
4.12%
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%
$741,820
$741.8K
Cap Rate 7%
$529,871
$529.9K
Cap Rate 9%
$412,122
$412.1K
Market Conditions
NOI Build-Up for 2,050 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
$55.4K $27.00/SF
− Vacancy
−$2.4K −$1.15/SF
EGI
$53.0K $25.85/SF
− OpEx
−$15.9K −$7.75/SF
NOI
$37.1K $18.09/SF
Area
Fullerton, CA
Vacancy
4.27%
Lease Rate
$27.00 /SF/Yr
Expense Ratio
30.00%
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%
$741,820
Cap Rate 7%
$529,871
Cap Rate 9%
$412,122
Alternative Uses
Best Use
Multifamily LT 5
$529.9K
$463.6K – $618.2K
NOI $37,091 @ 7.0% cap · market cap 4.12%
Second Best
Apartment 5plus
$489.2K
$428.0K – $570.7K
NOI $34,241 @ 7.0% cap · market cap 3.80%
Theoretical Best
Office A
$659.2K
$576.8K – $769.1K
NOI $46,144 @ 7.0% cap · market cap 5.13%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Current Use
Location Intelligence
Trade Area within ½ mile
2,225
Businesses Nearby
Explore this area
Business Placement
Demographics for 92832, CA
26,277
Population
9,170
Households
2.9
Avg Household Size
35
Median Age
32%
College-Educated
82%
High-School Grad
2.9 sq mi
ZIP Area
9,061
Density / Sq Mi
$92,588
Median Household Income
$42,634
Median Earnings
$2,027
Median Rent
$773,100
Median Home Value
Market
Vacancy Rate% for Multifamily in West region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Two separate residences share one lot, with individual utility metering and garage parking for both households.
Where is this duplex located?
The property is located at 513 Williamson Ave Fullerton, CA.
What is the asking price?
The asking price for this property is $899,999.
What are key features of this property?
This property features: Two detached single‑family homes on one lot; 2,050 square feet with a 3‑bedroom, 2‑bath home and a 2‑bedroom, 1‑bath home; Larger residence includes a 2‑car garage
