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431 W Union Boulevard, Bethlehem, PA, 18018
Mixed-Use Conversion Building Opportunity

431 W Union Boulevard Bethlehem, PA 18018

For Sale
$599,900

MULTI_FAMILY - Bethlehem City, PA

Property Size4,082 SF
Lot Size0.29 Acres
Price / SF$146.96
Days on Market206

Property Features for 431 W Union Boulevard

General Information

Property type
Residential Multi Family
Property subtype
Other
Zoning
Rt-Residential
Parking
12
Standard status
Active
APN
642739721641 001
Size
4,082 SF
Lot size
0.29 Acres

Taxes and HOA fees

Tax Annual Amount
7623

Utilities

Sewer type
Public Sewer
Heating system
Natural Gas
Cooling system
Central Air, Wall Unit(s)
Water source
Public

Building Details

Year built
1910
Number of units
5
Building materials
Brick
Listing Agency: Century 21 Ramos Realty
Listed By: Anthony Ramos · License #AB068035
Added: Jan 2 Changed: Jul 21 Last Checked: Jul 27 at 5:06AM
MLS# 769868

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


Investment Insights

Based on property information with market context.

This one-of-a-kind commercial property totals just over 4,000 square feet and is currently under construction. The main level features a spacious open area designed for commercial use, while the second floor includes multiple rooms and bathrooms. Additional finished space is contemplated for a third-floor loft-style apartment configuration, subject to development plans.

The property sits on a 0.286-acre lot in North Bethlehem, with rear parking and a detached storage building and garage that include water and electric. A large side lot also supports flexible site planning.

The existing building layout and lot improvements provide multiple pathways for redevelopment, including the stated concept of commercial space on the first floor, three one-bedroom apartments on the second floor, and loft-style living space on the third floor. Schedule an appointment to review the building and share your plans.

Key Highlights

  • One‑of‑a‑kind commercial property over 4,000 sq. ft in North Bethlehem, previously used as a club/fraternal association
  • Building has brick construction, natural gas heating, central air, and wall unit(s)
  • Main level offers a spacious open area suitable for commercial space

Financial Insights For Retail

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 $43.1k $10.56
− Vacancy −$3.4k −$0.82
EGI $39.7k $9.74
− OpEx −$11.9k −$2.92
NOI $27.8k $6.82
4,082 SF · lease $10.56/SF/yr · vacancy 7.80% · expense 30.00%

Alternative Uses

Best Use
Retail
$397.4K
$347.8K – $463.7K (±1% cap)
NOI $27,821 @ 7.0% cap · market cap 4.64%
Second Best
Apartment 5plus
$340.7K
$298.1K – $397.4K (±1% cap)
NOI $23,846 @ 7.0% cap · market cap 3.97%
Theoretical Best
Mixed Use
$600.3K
$525.2K – $700.3K (±1% cap)
NOI $42,019 @ 7.0% cap · market cap 7.00%
Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

Retail space

Suggested Use

Pharmacy (Bike/Boat/Book/etc) Store Veterinary Clinic Pet Grooming Service (Bike/Boat/Book/etc) Store Locksmith (Bike/Boat/Book/etc) Store Travel Agency Pet Store (Bike/Boat/Book/etc) Store

Zoning and permitted uses should be independently verified with local authorities.

FAQs

What type of property is this?
Apartment building - Commercial building with open main level, multiple second-floor rooms and bathrooms, plus rear parking and detached storage/garage.
Where is this apartment building located?
The property is located at 431 W Union Boulevard Bethlehem, PA.
What is the asking price?
The asking price for this property is $599,900.
What are key features of this property?
This property features: One‑of‑a‑kind commercial property over 4,000 sq. ft in North Bethlehem, previously used as a club/fraternal association; Building has brick construction, natural gas heating, central air, and wall unit(s); Main level offers a spacious open area suitable for commercial space
More about this property
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