ALEX Real Estate / Subdivision Guide / Onion Creek · Austin · Travis County, TX

Onion Creek, Austin, TX: Homes, Prices & Neighborhood Guide

34 homes sold in Onion Creek from Oct 2025 to Sep 2026; 94% were single-family houses. The typical home has about 2,498 square feet and was built in 1983. The median single-family home in Onion Creek sold for $541,000 net of seller concessions ($222 per square foot) over Oct 2025 to Sep 2026, across 22 sales; the median home took 38 days to sell.

What types of homes are in Onion Creek?

34 homes sold in Onion Creek from Oct 2025 to Sep 2026; 94% were single-family houses. The typical home has about 2,498 square feet and was built in 1983.

Closed residential sales in ABOR MLS, Oct 2025 to Sep 2026.

What is the typical price range in Onion Creek?

The median single-family home in Onion Creek sold for $541,000 net of seller concessions ($222 per square foot) over Oct 2025 to Sep 2026, across 22 sales; the median home took 38 days to sell.

Homes sold22
Median net sale price$541,000
Average net sale price$587,289
Median net price per sq ft$222
Median days on market38 days
For sale now5
Months of supply0.2

Single-family homes, Oct 2025 to Sep 2026, ABOR MLS. The live MLS feed records 32 single-family sales in this period; this table counts the 22 the ALEX warehouse records as closed. Net price = sale price less seller-paid closing costs and repairs. Figures from the ALEX market statistics model, the same computation as the ALEX valuation report. Information deemed reliable but not guaranteed.

What restaurants and amenities are near Onion Creek?

Within 3 miles of the middle of Onion Creek OpenStreetMap lists 36 restaurants and cafes, 2 grocery stores, 26 parks and nature areas.

Community features named in listings: Common Grounds (22 listings), Golf (20 listings), Playground (20 listings), Park (13 listings), Pool (13 listings), Clubhouse (12 listings), Sidewalks (10 listings), Picnic Area (9 listings), Curbs (9 listings), Tennis Court(s) (8 listings), Sport Court(s)/Facility (6 listings), Lake (6 listings).

Named places from OpenStreetMap contributors (ODbL), extract of September 28, 2026; straight-line miles from the middle of the homes sold, not driving distance. A place missing from OpenStreetMap is missing here.

What should someone know before moving to Onion Creek?

Before moving to Onion Creek: 100% of homes sold had a homeowners association; typical dues $35 a month (middle half $30–$38, converted from the billing period listed); the median combined property tax rate on homes sold was 2.1211% (2026 adopted rates, 34 parcels, before exemptions).

What is it like to live in Onion Creek?

By the records: Onion Creek has lots of about 0.26 acres; an HOA on most homes; community features such as common grounds, golf, playground, park, pool; the nearest grocery store 1.7 miles away (Walmart Supercenter); the nearest park 0.4 miles away (Slaughter Creek Neighborhood Park).

Answered only from the records on this page: sales, listings, maps and public records. ALEX does not describe who lives in a neighborhood.

Sources: ABOR MLS (Unlock MLS) closed and active listings; ALEX market statistics model; county appraisal district records (tax rates); FEMA National Flood Hazard Layer; OpenStreetMap contributors (ODbL). Which listings count as Onion Creek follows the MLS subdivision name, the same rule ALEX uses for comparable sales. Aggregates only: Texas is a non-disclosure state. Updated October 25, 2026.

George Arnold Alexander III, MPA
MIT, Nvidia, Google, AWS & IBM-Trained. Cross-Domain Expert. Castor Venture Club.
Partner, ALEX Companies
Associate Broker, Alexander Tiffany Southwest, LLC dba ALEX.realestate, et al.
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