Mixed-Use Building with
For Sale
$599,900
431 W Union Boulevard, Bethlehem, PA 18018
CommercialSale, Bethlehem City, PA
Property Size4,082 SF
Lot Size0.29 Acres
Price / SF$146.96
Days on Market251
Property Features for 431 W Union Boulevard
General Information
Property type
Commercial Sale
Property subtype
Other
Parking features
Off Street, On Street
Directions
Corner of Union Blvd and 4th Ave
Subdivision
Bethlehem-West
Standard status
Active
APN
642739721641 001
Size
4,082 SF
Lot size
0.29 Acres
Taxes and HOA fees
Tax Annual Amount
7623
Utilities
Heating system
Natural Gas
Cooling system
Central Air, Wall Unit(s)
Building Details
Year built
1910
Building materials
Brick
Listing Agency:
Century 21 Ramos Realty · Century 21 Real Estate
(610) 866-4423
Listed By:
Anthony Ramos · License #AB068035
(484) 695-4887
Added: Jan 2
Changed: Sep 2
Last Checked: Sep 10 at 10:06AM
MLS# 769870
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 4,082-square-foot brick property, built in 1910, is currently under construction on a 0.286-acre lot. The first floor contains a broad open area suited to commercial occupancy, while the second level includes multiple rooms and bathrooms. A detached storage building and garage provide water and electric service, and the site includes a large side lot.
Parking is available both on site and along the street. Natural gas heating is installed, with wall-unit and central air-conditioning systems. The current concept envisions commercial space on the first floor, three one-bedroom apartments on the second floor, and a loft-style apartment on the third floor.
Parking is available both on site and along the street. Natural gas heating is installed, with wall-unit and central air-conditioning systems. The current concept envisions commercial space on the first floor, three one-bedroom apartments on the second floor, and a loft-style apartment on the third floor.
Key Highlights
- 4,082 SF brick building constructed in 1910
- 0.286‑acre lot with a large side lot
- Open first‑floor area and multiple second‑floor rooms with bathrooms
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
$42,019
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
7.00%
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%
$840,380
$840.4K
Cap Rate 7%
$600,271
$600.3K
Cap Rate 9%
$466,878
$466.9K
Market Conditions
NOI Build-Up for 4,082 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
$73.5K $18.00/SF
− Vacancy
−$6.2K −$1.53/SF
EGI
$67.2K $16.47/SF
− OpEx
−$25.2K −$6.18/SF
NOI
$42.0K $10.29/SF
Area
Lehigh County, PA
Vacancy
8.50%
Lease Rate
$18.00 /SF/Yr
Expense Ratio
37.50%
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%
$840,380
Cap Rate 7%
$600,271
Cap Rate 9%
$466,878
Alternative Uses
Best Use
Mixed Use
$600.3K
$525.2K – $700.3K
NOI $42,019 @ 7.0% cap · market cap 7.00%
Second Best
Specialty Retail
$466.6K
$408.2K – $544.3K
NOI $32,659 @ 7.0% cap · market cap 5.44%
Theoretical Best
—
—
same as Best Use
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
Yes
Utilities to site
Location Intelligence
Trade Area within ½ mile
1,674
Businesses Nearby
Explore this area
Business Placement
Demographics for 18018, PA
32,388
Population
14,669
Households
2.2
Avg Household Size
39
Median Age
37%
College-Educated
92%
High-School Grad
5.2 sq mi
ZIP Area
6,228
Density / Sq Mi
$71,968
Median Household Income
$43,471
Median Earnings
$1,261
Median Rent
$224,000
Median Home Value
Check the figures for this property
Cap Rate, Value Estimation, Potential NOI and more
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Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Mixed-use property - Brick commercial property under construction with multiple levels, off-street parking, and a detached storage and garage structure.
Where is this mixed-use property 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: 4,082 SF brick building constructed in 1910; 0.286‑acre lot with a large side lot; Open first‑floor area and multiple second‑floor rooms with bathrooms
