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#1 Austin Board of Realtors Team 2024#1 Austin Board of Realtors Team 2024Loading
Verified property facts
21601 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.
21601 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 21601 Santa Carlo Ave is $1,028. 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.
With 20% down ($15,800) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 21601 Santa Carlo Ave is around $496 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
#1 Austin Board of Realtors Team. Over 1,000 successful transactions with high-end expertise.
25+ years advising buyers and sellers in this community
Best Match
Balanced against price, location, and layout so nearby lookalikes rise first. Similar properties in Highland Lake Estates Sec 26 A
Listing timeline with current price, original ask, and market time.
One of the flattest, most build-ready lots in Lago Vista. This cleared homesite offers an ideal setting for an easy build, helping reduce site prep costs and timelines. Utilities are already run to the property, with only impact fees remaining (buyer to verify all utility availability and fees with the City of Lago Vista). Located in the Lago Vista Property Owners Association, enjoy access to private waterfront parks, boat ramps, marina, fishing areas, swimming parks, and more on Lake Travis. Seller is local custom home builder and is open to selling the lot or partnering with buyer to design and build a custom home. Great opportunity for a level lot with flexibility in a growing lakeside community!
Property Type
Land
Lot Size
0.24 acres
HOA
$240/mo
Listed by eXp Realty, LLC
Property Details
Lot Features
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. Ratings from GreatSchools.org.
20% ($16K)
$79,000
Luxury property intelligence
A sourced read on Highland Lake Estates Sec 26 A pricing, timing, and property scale. No automated valuation claim.
List price
$79,000
Price per sqft
Not available
Vs. Highland Lake Estates Sec 26 A median
Not available
Days on market
23 days
Original to current
No verified reduction
$79K original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of May 3, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
At $79,000, 21601 Santa Carlo Ave is in the Highland Lake Estates Sec 26 A market where there are currently 251 active listings in 78645. The Keenan Group has completed 6 transactions in 78645 as part of 1,000+ career sales totaling $1B+ across Austin.
21601 Santa Carlo Ave is part of a managed community with HOA dues of $240 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.
Active listings near 21601 Santa Carlo Ave
Recent sales for market context
