
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.
Property Type
Residential
Year Built
2021
Lot Size
0.22 acres
$/Sq Ft
$161
HOA
$200/mo
Garage
2 spaces
Listed by Solutions Real Estate Texas
Property Details
Features
Appliances
Flooring
Features
Construction
Lot Features
Fencing
Foundation
Patio / Porch
Parking
Waterfront
1 record on file
Every recorded 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.
21209 Santa Carlo Ave is presented by the Keenan Group at Compass Real Estate, the #1 Austin Board of Realtors Team (2024) with 1,000+ career transactions and $1B+ in career volume across Austin's luxury market.
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.
#1 Austin Board of Realtors Team. Over 1,000 successful transactions with high-end expertise.
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.
Listed 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.
20% ($58K)
$289,900
Luxury property intelligence
A sourced read on Highland Lake Estates Sec 31 pricing, timing, and property scale. No automated valuation claim.
List price
$289,900
Price per sqft
$161/sqft
Vs. Highland Lake Estates Sec 31 median
Not available
Days on market
124 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 Aug 21, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
With 20% down ($57,980) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 21209 Santa Carlo Ave is around $2,179 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
At $289,900, 21209 Santa Carlo Ave is in the Highland Lake Estates Sec 31 market where there are currently 263 active listings in 78645. The Keenan Group has completed 6 transactions in 78645 as part of 1,000+ career sales totaling $1B+ across Austin.
21209 Santa Carlo Ave was built in 2021, making it 5 years old with relatively recent construction.
21209 Santa Carlo Ave includes verified waterfront access: None. Buyers should confirm shoreline, dock rights, and floodplain status during due diligence.
21209 Santa Carlo Ave is part of a managed community with HOA dues of $200 annually. HOA-managed communities in Austin's luxury market typically provide amenities such as common areas, security, and exterior maintenance. Verify current dues and rules with the HOA directly.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
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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