Two-Unit Residential Income
For Sale
$725,000
618 South 21st Street, Philadelphia, PA 19146
Two separate residences offer in-unit laundry, hardwood floors, updated kitchens, and private outdoor space.
Property Size1,920 SF
Price / SF$377.60
Days on Market335
Property Features for 618 South 21st Street
General Information
Standard status
Active
Size
1,920 SF
Property subtype
Multi-Family / Fee Simple
Additional Details
Multifamily Units
2
Amenities
modern finishes
outdoor living
in-unit washer/dryer
hardwood floors
updated kitchen
private outdoor space
basement storage
modern kitchen
granite counters
stainless steel appliances
Building Details
Year Built
1915
Stories
3
Tenancy
Multi
Listing Agency:
BHHS Fox & Roach The Harper at Rittenhouse Square
(215) 546-0550
Listed By:
Sarah E Frangos
(215) 546-0550
Source:
Compass
Added: Sep 1, 2025
Changed: Jul 22
Last Checked: Jul 23 at 9:12AM
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 BHHS Fox & Roach The Harper at Rittenhouse Square
Investment Insights
Based on property information with market context.
This two-unit duplex includes Unit 1 on the first floor and Unit 2 spanning the second and third floors. Unit 1 features a 1-bedroom, 1-bath layout with hardwood floors, an updated kitchen, in-unit washer/dryer, and access to a private outdoor space.
Unit 2 is a bi-level 2-bedroom, 2-bath residence with hardwood flooring throughout. It includes a modern kitchen with granite counters and stainless steel appliances, plus in-unit washer/dryer.
Additional storage is available in the basement. The property is located in Philadelphia near Rittenhouse Square, South Street, and Fitler Square, with public transit access and walkable, bikeable surroundings.
Unit 2 is a bi-level 2-bedroom, 2-bath residence with hardwood flooring throughout. It includes a modern kitchen with granite counters and stainless steel appliances, plus in-unit washer/dryer.
Additional storage is available in the basement. The property is located in Philadelphia near Rittenhouse Square, South Street, and Fitler Square, with public transit access and walkable, bikeable surroundings.
Key Highlights
- Two separate residences with in‑unit washer/dryer
- Unit 1 (first floor): 1 bed, 1 bath with hardwood floors, updated kitchen, and access to private outdoor space
- Unit 2 (bi‑level, 2nd & 3rd floors): 2 bed, 2 bath with multiple levels of living space and hardwood flooring
Financial Insights For Multifamily LT 5
Simulate Cap Rate and NOI
NOI Build-Up
- 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.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $49.5k | $25.80 |
| − Vacancy | −$2.7k | −$1.42 |
| EGI | $46.8k | $24.38 |
| − OpEx | −$14.0k | −$7.31 |
| NOI | $32.8k | $17.06 |
1,920 SF · lease $25.80/SF/yr · vacancy 5.51% · expense 30.00%
Alternative Uses
Best Use
Multifamily LT 5
$468.1K
$409.6K – $546.1K
NOI $32,765 @ 7.0% cap · market cap 4.52%
Second Best
Apartment 5plus
$431.4K
$377.5K – $503.4K
NOI $30,201 @ 7.0% cap · market cap 4.17%
Theoretical Best
—
—
same as Best Use
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Current Use
Lease Details
2
Residential units
Multi-tenant
Tenancy
Location Intelligence
Trade Area within ½ mile
9,415
Businesses Nearby
Explore this area
Business Placement
Demographics for 19146, PA
41,920
Population
22,182
Households
1.9
Avg Household Size
34
Median Age
65%
College-Educated
94%
High-School Grad
1.7 sq mi
ZIP Area
24,659
Density / Sq Mi
$99,702
Median Household Income
$68,849
Median Earnings
$1,708
Median Rent
$452,200
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Two separate residences offer in-unit laundry, hardwood floors, updated kitchens, and private outdoor space.
Where is this duplex located?
The property is located at 618 South 21st Street Philadelphia, PA.
What is the asking price?
The asking price for this property is $725,000.
What are key features of this property?
This property features: Two separate residences with in‑unit washer/dryer; Unit 1 (first floor): 1 bed, 1 bath with hardwood floors, updated kitchen, and access to private outdoor space; Unit 2 (bi‑level, 2nd & 3rd floors): 2 bed, 2 bath with multiple levels of living space and hardwood flooring
