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Updated Duplex with Two Units
For Sale
$325,000

1103 Hillyer Street, San Marcos, TX 78666

Residential, San Marcos, TX

Property Size1,760 SF
Lot Size0.23 Acres
Price / SF$184.66
Days on Market39

Property Features for 1103 Hillyer Street

General Information

Property type Residential Multi Family
Property subtype Duplex
Bedrooms 4
Full bathrooms 2
Rooms Bedroom 4, Bedroom 2, Bathroom 2, Bedroom 1, Bathroom 1, Bedroom 3
Vegetation Wooded
Interior features CeilingFans, LaminateCounters, TubShower, GraniteCounters
Appliances ElectricCooktop, ElectricWaterHeater, Oven, Refrigerator, SomeElectricAppliances
Subdivision Westover
Lot features City Lot, Sloped, Wooded, Less Than Quarter Acre
Elementary school district San Marcos Cisd
Middle school district San Marcos Cisd
High school district San Marcos Cisd
Directions From downtown San Marcos. Go west on Hopkins, Take right on Bishop, Take right on Prospect, Take left on Allan, and property on on the right. Look for sign and black mail box.
Standard status Active
APN R47741
Size 1,760 SF
Lot size 0.23 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description WESTOVER, BLOCK 42, LOT 558 & SW 1/2 OF 559
Tax Annual Amount 4982
Legal Description WESTOVER, BLOCK 42, LOT 558 & SW 1/2 OF 559

Utilities

Heating system Central, Electric (Heating)
Cooling system Central Air, Electric
Water source Public

Building Details

Year built 1996
Floors in Building 1
Number of units 2
Flooring type Laminate, Linoleum
Building materials Masonry, WoodSiding
Roof type Shingle, Composition
Architectural style Other
Listing Agency: Clark Real Estate Agency
Listed By: Richard Clark · License #0558014
Added: Jul 23 Changed: Aug 20 Last Checked: Aug 30 at 7:06PM
MLS# 620366

Copyright © 2026 Central Texas Multiple Listing Service. 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 1,760-square-foot duplex, built in 1996, contains two residences with matching layouts of two bedrooms and one bathroom each. The property occupies 0.2326 acres and combines masonry and wood-siding construction with a composition shingle roof. Central electric heating and cooling serve the building, while public water, electric cooking, refrigerators, ovens, and water heating support daily operations. Laminate and linoleum flooring are installed throughout, with no carpet reported.

Unit B received a substantial interior renovation in 2025, including wood-look flooring, granite countertops, updated fixtures, and new interior paint. Unit A also has refreshed interior paint, wood-look flooring, and a front deck, and is currently available for rent. Property-wide improvements include a new roof and exterior paint completed in 2025. The duplex is located in San Marcos, Texas, on a private driveway near Wonder World Park.

Key Highlights

  • 1,760‑square‑foot duplex on 0.2326 acres
  • Two units, each with 2 bedrooms and 1 bathroom
  • New roof and exterior paint completed in 2025

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
$29,513
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
9.08%
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%
$590,260 $590.3K
Cap Rate 7%
$421,614 $421.6K
Cap Rate 9%
$327,922 $327.9K
Market Conditions
NOI Build-Up for 1,760 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 $25.20/SF
− Vacancy
−$2.2K −$1.24/SF
EGI
$42.2K $23.96/SF
− OpEx
−$12.6K −$7.19/SF
NOI
$29.5K $16.77/SF
Area
Hays County, TX
Vacancy
4.94%
Lease Rate
$25.20 /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%
$590,260
Cap Rate 7%
$421,614
Cap Rate 9%
$327,922

Alternative Uses

Best Use
Multifamily LT 5
$421.6K
$368.9K – $491.9K (±1% cap)
NOI $29,513 @ 7.0% cap · market cap 9.08%
Second Best
Apartment 5plus
$385.4K
$337.2K – $449.7K (±1% cap)
NOI $26,979 @ 7.0% cap · market cap 8.30%
Theoretical Best
Office A
$735.7K
$643.8K – $858.4K (±1% cap)
NOI $51,501 @ 7.0% cap · market cap 15.85%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Kitchen & Bath Showroom HVAC Service Bakery Pharmacy Big Box & Wholesale Store Building Supply

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

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

208
Businesses Nearby

Demographics for 78666, TX

86,584
Population
36,354
Households
2.4
Avg Household Size
27
Median Age
35%
College-Educated
89%
High-School Grad
192.4 sq mi
ZIP Area
450
Density / Sq Mi
$55,478
Median Household Income
$25,890
Median Earnings
$1,294
Median Rent
$271,900
Median Home Value

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two-bedroom floor plans, recent improvements, and flexible occupancy support both rental use and owner occupancy.
Where is this duplex located?
The property is located at 1103 Hillyer Street San Marcos, TX.
What is the asking price?
The asking price for this property is $325,000.
What are key features of this property?
This property features: 1,760‑square‑foot duplex on 0.2326 acres; Two units, each with 2 bedrooms and 1 bathroom; New roof and exterior paint completed in 2025
More about this property
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