# 12159 Old Onyx, San Antonio, TX 78245

> **TL;DR:** 5bd/4ba single family, $325,000 ($121/sqft), built 2021, 2,678 sqft.
> A/C. Est. $1,608/mo.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $325,000 |
| Price/sqft | $121 |
| Bedrooms | 5 |
| Bathrooms | 3 full, 1 half |
| Square Feet | 2,678 |
| Year Built | 2021 |
| Lot Size | 10,193 sqft (0.23 acres) |
| Property Type | Single Family (Other) |
| Status | For Sale |
| Days on Market | 0 |

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Mortgage (20% down, 6.5%) | $1,408 |
| HOA | $200 |
| **Total** | **$1,608** |

## Nearby Schools

- **Middle:** Luna
- **High:** William Brennan

## Key Amenities

- A/C

## Property Highlights

- Built in 2021
- 0.23 acre lot

## Description

### Agent Description
Welcome to 12159 Old Onyx, a well-maintained two-story home situated on nearly a 1/4-acre lot in the rapidly growing Far West San Antonio corridor-just minutes from Lackland AFB and zoned to highly regarded Northside ISD schools. Step inside to a bright, inviting interior featuring fresh paint throughout, giving the home a clean, modern, move-in-ready feel. The open-concept layout seamlessly connects the kitchen, dining, and living areas-perfect for both everyday living and entertaining. Upstairs, you'll find spacious bedrooms and a versatile layout that can easily accommodate a home office, game room, or guest space. The backyard is where this home truly stands out. Sitting on almost a quarter acre, the property offers a covered patio and elevated deck overlooking a large yard with mature trees and no immediate rear neighbors. Whether you're hosting gatherings, relaxing outdoors, or planning future additions, the space and privacy are hard to find at this price point. Conveniently located near Potranco Rd, Hwy 211, and Loop 1604, you'll have quick access to shopping, dining, and major employers-making this an excellent option for both homeowners and military buyers seeking proximity to base. 12159 Old Onyx delivers space, location, and move-in-ready condition-an opportunity you don't want to miss.

## Location

- **Address:** 12159 Old Onyx, San Antonio, TX 78245
- **County:** Bexar
- **Coordinates:** 29.415865, -98.73333
- **Google Maps:** https://www.google.com/maps?q=29.415865,-98.73333

## Listing Agent

- **Name:** Nathan Koudouris
- **Brokerage:** Keller Williams Heritage
- **Phone:** (210) 493-3030
- **Email:** klrw2@kw.com

## Primary Photo

![12159 Old Onyx - Primary Photo](http://lh.rdcpix.com/2d58ec6003fe4e2bd1ed9344a30e8914l-f654593782r.jpg)

*31 total photos available on [listing page](https://www.propertysimple.com/listing/12159-old-onyx-san-antonio-tx-78245-1956773)*

---

**MLS#:** 1956773 | **Updated:** 2026-06-20
**Source:** listhub

*Copyright © 2026 LERA MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.*

[View on PropertySimple](https://www.propertysimple.com/listing/12159-old-onyx-san-antonio-tx-78245-1956773)

---

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