5-Unit Apartment
New
For Sale
$470,000
3521 N 21st St, Philadelphia, PA 19140
Five-unit property with a mix of studio and one-bedroom apartments in Philadelphia.
Property Size2,540 SF
Price / SF$185.04
Days on Market2
Property Features for 3521 N 21st St
General Information
Standard status
Active
Size
2,540 SF
Units
Unit Mix
3 x 1BR/1BA, 2 x Studio
Multifamily Units
5
Additional Details
Public Transit
Yes
Building Details
Year Built
1930
Listing Agency:
OCF Realty LLC - Philadelphia
Listed By:
Kevin M McGettigan · License #RS326539
(215) 735-7368
Source:
Selltheshore
Added: Sep 14
Last Checked: Sep 14 at 2:40PM
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 OCF Realty LLC - Philadelphia
Investment Insights
Based on property information with market context.
Located at 3521 N 21st St in Philadelphia, this 2,540-square-foot apartment building contains five residential units: three one-bedroom, one-bath apartments and two studios. Constructed in 1930, the property offers a straightforward multifamily configuration with varied unit sizes.
The building is in the West Allegheny neighborhood, with access to Broad Street transit, Roosevelt Blvd, neighborhood retail, and nearby bus routes. It may be acquired individually or included in a three-property package totaling 14 units with 2122 W Estaugh St and 1729 W Erie Ave.
The building is in the West Allegheny neighborhood, with access to Broad Street transit, Roosevelt Blvd, neighborhood retail, and nearby bus routes. It may be acquired individually or included in a three-property package totaling 14 units with 2122 W Estaugh St and 1729 W Erie Ave.
Key Highlights
- Five‑unit apartment building with three one‑bedroom units and two studios
- 2,540 square feet of building area
- Three one‑bedroom, one‑bath apartments
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
$39,953
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
8.50%
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%
$799,060
$799.1K
Cap Rate 7%
$570,757
$570.8K
Cap Rate 9%
$443,922
$443.9K
Market Conditions
NOI Build-Up for 2,540 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
$77.1K $30.36/SF
− Vacancy
−$4.5K −$1.76/SF
EGI
$72.6K $28.60/SF
− OpEx
−$32.7K −$12.87/SF
NOI
$40.0K $15.73/SF
Area
Philadelphia, PA
Vacancy
5.80%
Lease Rate
$30.36 /SF/Yr
Expense Ratio
45.00%
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%
$799,060
Cap Rate 7%
$570,757
Cap Rate 9%
$443,922
Alternative Uses
Best Use
Apartment 5plus
$570.8K
$499.4K – $665.9K
NOI $39,953 @ 7.0% cap · market cap 8.50%
Second Best
—
—
no second resolved use
Theoretical Best
Multifamily LT 5
$619.2K
$541.8K – $722.4K
NOI $43,345 @ 7.0% cap · market cap 9.22%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
5
Residential units
Location Intelligence
Trade Area within ½ mile
1,604
Businesses Nearby
Explore this area
Business Placement
Demographics for 19140, PA
52,124
Population
23,104
Households
2.3
Avg Household Size
36
Median Age
9%
College-Educated
73%
High-School Grad
3.2 sq mi
ZIP Area
16,289
Density / Sq Mi
$33,149
Median Household Income
$31,508
Median Earnings
$1,085
Median Rent
$101,100
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Vacancy Rate% for Multifamily in Northeast region
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Frequently Asked Questions
What type of property is this?
Apartment building - Five-unit property with a mix of studio and one-bedroom apartments in Philadelphia.
Where is this apartment building located?
The property is located at 3521 N 21st St Philadelphia, PA.
What is the asking price?
The asking price for this property is $470,000.
What are key features of this property?
This property features: Five‑unit apartment building with three one‑bedroom units and two studios; 2,540 square feet of building area; Three one‑bedroom, one‑bath apartments
