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Corner-Lot Office Building
For Sale
$299,900

516 S San Patricio Street, Sinton, TX 78387

SINGLE_FAMILY - Sinton, TX

Property Size1,164 SF
Lot Size0.15 Acres
Price / SF$257.65
Days on Market157

Property Features for 516 S San Patricio Street

General Information

Property type Residential
Property subtype Office
Parking features Off Street
Subdivision Sinton-Moss
Lot features Corner Lot
Standard status Active
APN 72048
Size 1,164 SF
Lot size 0.15 Acres

Taxes and HOA fees

Tax Description MOSS ADDN BLK 2, PT LOT 5 (0.149 ACRES)
Legal Description MOSS ADDN BLK 2, PT LOT 5 (0.149 ACRES)

Utilities

Sewer type Public Sewer
Heating system Ductless (Heating), Natural Gas, Central
Cooling system Central Air, Ductless
Water source Public

Amenities

lobby/reception area
bathroom
kitchenette
central heat and air
mini-split system
storage building with roll-up door

Building Details

Year built 1961
Floors in Building 1
Building materials Brick
Listing Agency: Coastal Country Real Estate
Listed By: Shari Kirk · License #0633997
Added: Mar 9 Changed: Aug 3 Last Checked: Aug 12 at 10:06PM
MLS# 472962

Copyright © 2026 South Texas Multiple Listing Service, LLC. 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.

Brick office building located at 516 S San Patricio Street in Sinton, Texas on a corner lot with convenient side parking for clients and staff. The interior layout includes a front lobby and reception area, three private offices, a bathroom, and a kitchenette, with a back office supported by a ductless mini-split system for additional climate control. The main space is serviced by central heat and central air.

The property also includes a separate large storage building with a roll-up door, which can support equipment, inventory, records storage, or workshop use depending on the needs of the next owner. Parking is provided via off-street spaces. The roof was replaced in 2022. Built in 1961, the building is served by public water and public sewer.

With its adaptable floor plan, client-friendly entry, and additional storage, the property can serve professional offices, retail operations, service providers, or small business headquarters.

Key Highlights

  • Corner‑lot office building at 516 S San Patricio Street with side parking
  • Front lobby and reception area plus three private offices
  • Storage building with a roll‑up door conveys with the sale

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
$15,059
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
5.02%
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%
$301,180 $301.2K
Cap Rate 7%
$215,129 $215.1K
Cap Rate 9%
$167,322 $167.3K
Market Conditions
NOI Build-Up for 1,164 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
$27.7K $23.76/SF
− Vacancy
−$7.6K −$6.51/SF
EGI
$20.1K $17.25/SF
− OpEx
−$5.0K −$4.31/SF
NOI
$15.1K $12.94/SF
Area
San Patricio County, TX
Vacancy
27.40%
Lease Rate
$23.76 /SF/Yr
Expense Ratio
25.00%
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%
$301,180
Cap Rate 7%
$215,129
Cap Rate 9%
$167,322

Alternative Uses

Best Use
Office B
$215.1K
$188.2K – $251.0K (±1% cap)
NOI $15,059 @ 7.0% cap · market cap 5.02%
Second Best
Warehouse
$110.4K
$96.6K – $128.8K (±1% cap)
NOI $7,729 @ 7.0% cap · market cap 2.58%
Theoretical Best
Hotel Hospitality
$597.1K
$522.5K – $696.7K (±1% cap)
NOI $41,799 @ 7.0% cap · market cap 13.94%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Office Units

Suggested Use

Top Pick Real Estate Agency Hair Salon Spa & Massage Center Electrical Service Nail Salon Kitchen & Bath Showroom

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

378
Businesses Nearby

Demographics for 78387, TX

9,936
Population
3,762
Households
2.6
Avg Household Size
38
Median Age
11%
College-Educated
81%
High-School Grad
172.2 sq mi
ZIP Area
58
Density / Sq Mi
$48,000
Median Household Income
$29,620
Median Earnings
$918
Median Rent
$122,400
Median Home Value

Market

Vacancy Rate% for Office in South region

14.4% 2019
16.4% 2020
17.3% 2021
18% 2022
18.6% 2023
20.3% 2024
20.2% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Office units - Brick office building with a front lobby, three private offices, and off-street side parking, plus a storage building with a roll-up door.
Where is this office units located?
The property is located at 516 S San Patricio Street Sinton, TX.
What is the asking price?
The asking price for this property is $299,900.
What are key features of this property?
This property features: Corner‑lot office building at 516 S San Patricio Street with side parking; Front lobby and reception area plus three private offices; Storage building with a roll‑up door conveys with the sale
More about this property
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