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5-Unit Apartment Building
New
For Sale
$395,000

3521 N 21ST Street, Philadelphia, PA 19140

Multi-Family, PHILADELPHIA, PA

Property Size2,540 SF
Lot Size0.04 Acres
Price / SF$155.51
Days on Market3

Property Features for 3521 N 21ST Street

General Information

Property type Residential Multi Family
Property subtype Other
Parking features On Street
Subdivision ALLEGHENY WEST
Elementary school district PHILADELPHIA CITY
Middle school district PHILADELPHIA CITY
High school district PHILADELPHIA CITY
Standard status Active
Size 2,540 SF
Lot size 0.04 Acres

Taxes and HOA fees

Tax Annual Amount 3341

Utilities

Heating system Central
Cooling system Central Air

Building Details

Year built 1930
Number of units 4
Building materials Masonry
Architectural style Other
Listing Agency: OCF Realty LLC - Philadelphia
Listed By: Dava Costello · License #RS332269
Added: Oct 28 Last Checked: Oct 30 at 1:06AM
MLS# PAPH2682140

Copyright © 2026 Bright MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Rey
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Investment Insights

Based on property information with market context.

This 5-unit apartment building at 3521 N 21ST Street contains 2,540 square feet on a 0.04-acre lot. The unit mix comprises three one-bedroom, one-bathroom apartments and two studio units. Built in 1930, the masonry property has central heating and central air conditioning, with on-street parking.

The property is in Philadelphia’s West Allegheny neighborhood, near Broad Street transit, Roosevelt Boulevard, neighborhood retail, and bus routes. It is offered individually or within a three-property package totaling 14 units, which also includes 2122 W Estaugh St and 1729 W Erie Ave.

Key Highlights

  • Five residential units: three one‑bedroom, one‑bathroom apartments and two studios
  • 2,540 square feet on a 0.04‑acre lot
  • Masonry construction with central heating and central air conditioning

Property Analytics

Who owns this building? See the owner, sales and loan history
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Lease Details

5
Residential units

Location Intelligence

Trade Area within ½ mile

1,604
Businesses Nearby

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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Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025

Frequently Asked Questions

What type of property is this?
Apartment building - Masonry construction and central heating and cooling serve a compact residential property with a defined mix of apartment layouts.
Where is this apartment building located?
The property is located at 3521 N 21ST Street Philadelphia, PA.
What is the asking price?
The asking price for this property is $395,000.
What are key features of this property?
This property features: Five residential units: three one‑bedroom, one‑bathroom apartments and two studios; 2,540 square feet on a 0.04‑acre lot; Masonry construction with central heating and central air conditioning
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