Highway Frontage Storefront
For Sale
$599,000
505 E Highway 100, Port Isabel, TX 78578
Located along Highway 100 with a layout suited to retail, office, or service businesses.
Property Size3,080 SF
Price / SF$194.48
Days on Market38
Property Features for 505 E Highway 100
General Information
Standard status
Active
Size
3,080 SF
Property subtype
Commercial
Site & Location
Highway Access
Yes
Road Access
Yes
Building Details
Year Built
1996
Listing Agency:
RE/MAX Elite
(512) 945-1240
Listed By:
Angel Torres · License #240_139
Source:
Troygilesrealty
Added: Jul 25
Changed: Aug 31
Last Checked: Aug 31 at 1:12AM
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 RE/MAX Elite
Investment Insights
Based on property information with market context.
This storefront property at 505 E Highway 100 presents a commercial building with a spacious interior layout and a range of stated use possibilities, including retail, office, and service-oriented businesses. The building was constructed in 1996.
Its position along Highway 100 provides direct roadway access and exposure to local and visitor traffic in Port Isabel. The property is located at 505 E Highway 100, Port Isabel, TX 78578, within the area’s commercial corridor.
Its position along Highway 100 provides direct roadway access and exposure to local and visitor traffic in Port Isabel. The property is located at 505 E Highway 100, Port Isabel, TX 78578, within the area’s commercial corridor.
Key Highlights
- Storefront property at 505 E Highway 100, Port Isabel, TX 78578
- Positioned along Highway 100 with direct roadway access
- Layout supports retail, office, or service‑based business uses
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
$29,308
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
4.89%
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%
$586,160
$586.2K
Cap Rate 7%
$418,686
$418.7K
Cap Rate 9%
$325,644
$325.6K
Market Conditions
NOI Build-Up for 3,080 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
$44.4K $14.40/SF
− Vacancy
−$2.5K −$0.81/SF
EGI
$41.9K $13.59/SF
− OpEx
−$12.6K −$4.08/SF
NOI
$29.3K $9.52/SF
Area
Cameron County, TX
Vacancy
5.60%
Lease Rate
$14.40 /SF/Yr
Expense Ratio
30.00%
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%
$586,160
Cap Rate 7%
$418,686
Cap Rate 9%
$325,644
Alternative Uses
Best Use
Retail
$418.7K
$366.4K – $488.5K
NOI $29,308 @ 7.0% cap · market cap 4.89%
Second Best
—
—
no second resolved use
Theoretical Best
Healthcare Medical
$530.3K
$464.0K – $618.7K
NOI $37,123 @ 7.0% cap · market cap 6.20%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
Yes
Highway access
Yes
Paved road access
Location Intelligence
Trade Area within ½ mile
628
Businesses Nearby
19k
Monthly Visits Nearby
Balanced
Demand for This Use
Explore this area
Business Placement
Foot Traffic Nearby
Shops & Services 68%
Dining 28%
Electronics 4%
QuikStop
Shops & Services
7,839 visits/mo
0.1 miles
Stripes
Shops & Services
3,435 visits/mo
0.3 miles
Little Caesars Pizza
Dining
3,049 visits/mo
0.1 miles
Pizza Hut
Dining
2,210 visits/mo
0.5 miles
Watermill Express
Shops & Services
1,307 visits/mo
0.4 miles
Demographics for 78578, TX
10,076
Population
6,391
Households
1.6
Avg Household Size
45
Median Age
24%
College-Educated
83%
High-School Grad
57.0 sq mi
ZIP Area
177
Density / Sq Mi
$52,041
Median Household Income
$36,896
Median Earnings
$763
Median Rent
$193,700
Median Home Value
Market
Vacancy Rate% for Retail in South region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Similar Off Market Nearby
- Bridgeview Flowers & Gifts — 134 S Shore Dr, Port Isabel, TX 78578
Frequently Asked Questions
What type of property is this?
Storefront property - Located along Highway 100 with a layout suited to retail, office, or service businesses.
Where is this storefront property located?
The property is located at 505 E Highway 100 Port Isabel, TX.
What is the asking price?
The asking price for this property is $599,000.
What are key features of this property?
This property features: Storefront property at 505 E Highway 100, Port Isabel, TX 78578; Positioned along Highway 100 with direct roadway access; Layout supports retail, office, or service‑based business uses
