#1 Austin Board of Realtors Team 2024#1 Austin Board of Realtors Team 2024
4 bed, 2 bath, 1,805 sqft on 0.22 acres in Lago Vista. Lago Vista, TX 78645. $289,900. Lago Vista ISD.
Built in 2021 Home has 4 bedrooms 2 baths 2 car garage, open floor plan Great house lowest price for size and age in Lago vista.
Listing information last updated August 28, 2026.
Listed by Solutions Real Estate Texas
MLS# 3768989 • Active Under Contract
IDX inquiries: Keenan Group at Compass · (512) 415-7653
1 record on file
Every recorded listing, sale, and lease at 21209 Santa Carlo Ave, whoever represented it.
Verified property facts
21209 Santa Carlo Ave is listed at $289,900 with 4 bedrooms, 2 full bathrooms, 1,805 square feet, 0.22-acre lot.
21209 Santa Carlo Ave is zoned for Lago Vista ISD with assigned schools: Lago Vista (elementary), Lago Vista (middle), Lago Vista (high). School assignments should be verified directly with the district.
21209 Santa Carlo Ave is a Residential built in 2021 featuring 4 bedrooms, 2 full bathrooms, 1,805 square feet, 0.22-acre lot.
The most recent annual property tax for 21209 Santa Carlo Ave is $8,101. Texas has no state income tax, so property taxes are a primary revenue source. Rates vary by jurisdiction and exemptions. Verify current amounts with the county appraisal district.
This page does not assume a mortgage rate or publish a monthly payment for 21209 Santa Carlo Ave. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.
#1 Austin Board of Realtors Team. 1,000+ homes sold and $1B+ in career sales over 25+ years in Austin.
25+ years advising buyers and sellers in this community
Prices shown are list prices. Closed sale prices are available to registered clients in accordance with ACTRIS rules.
Active Under Contract with current price, original ask, and market time.
Public record data from county appraisal records. Market value can differ from assessed value.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-10.8% | — | $380,193 | $44,767 | — |
2024-1.1% | — | $426,360 | $40,000 | $375,975 |
2023+6533.4% | — | $431,169 | $55,000 | $371,360 |
2021 | — | $6,500 | $12,000 | — |
Zoned assignments come from the property school fields available to us. District context schools are shown only when an assigned tier is missing. Contact the school district directly to verify current boundaries and enrollment eligibility.
Excluded from this estimate: property taxes and home insurance. Each requires verified amount, cadence or unit, source, and as-of details.
HOA source: MLS Grid / Unlock MLS, as of 2026-10-07T12:22:05.112+00:00; normalized from annual dues.
20% ($58K)
Adjustable assumption - not a lending recommendation.
$289,900
Luxury property intelligence
A sourced read on Lago Vista pricing, timing, and property scale. No automated valuation claim.
List price
$289,900
Price per sqft
$161/sqft
Vs. Neighborhood guide reference price
Not available
Days on market
171 days
Original to current
$9K reduction
$298.9K original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Oct 7, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
As of Oct 7, 2026, 21209 Santa Carlo Ave is offered at $289,900. The current MLS snapshot shows 226 active listings in 78645. Keenan Group has completed 7 verified transactions in 78645 within its 1,000+ completed transactions and $1B+ career volume across Austin.
21209 Santa Carlo Ave was built in 2021, making it 5 years old with relatively recent construction.
The MLS listing reports HOA or association dues of $200 annual for 21209 Santa Carlo Ave. It does not establish included amenities, services, rules, reserves, or current assessments; verify those items in current association documents.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
| Address | Offered At |
|---|---|
| 18312 Lakeshore Pt | $275K |
| 18305 Lakeshore Pt | $250K |
| 18405 Lakeshore Pt | $325K |
| 8414 Bronco Buster Trl | $275K |
Comparable homes that recently closed in this area
10 events on record
Current Price
$289,900
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-10.8% | — | $380,193 | $44,767 | — |
2024-1.1% | — | $426,360 | $40,000 | $375,975 |
2023+6533.4% | — | $431,169 | $55,000 | $371,360 |
2021 | — | $6,500 | $12,000 | — |
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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