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Keenan Group#1 Austin Board of Realtors Team 2024
21105 Santa Rosa Ave, photo 1 of 11, Lago Vista, Lago Vista, TX
Active

$79,990

0.28 acresLot

21105 Santa Rosa Ave, Lago Vista, TX 78645

Reduced 5%$83,990
Lago Vista·MLS# 3734076·420 days on market

— bed, — bath on 0.28 acres in Lago Vista. Lago Vista, TX 78645. $79,990. Lago Vista ISD.

About This Home

Welcome to your chance to own a spacious 0.28-acre lot in the sought-after Highland Lake Estates community of Lago Vista. This property is larger and deeper than many neighboring lots, giving you extra room for privacy, landscaping, and flexible home design. The lot is mostly level with a gentle slope, making it a great site to build.

Utilities are readily available with water and sewer lines nearby, AT&T service on site, and electricity provided by PEC. Community guidelines require a minimum 1,700 sq. ft. site-built home with a maximum height of 15 feet.

As part of the Lago Vista Property Owners Association, you’ll enjoy an impressive selection of amenities including lakefront parks, boat ramps, a clubhouse, fitness center, golf course, tennis courts, swimming pool, and more. Whether you love outdoor recreation, social activities, or simply relaxing by the water, this neighborhood has it all.

Located in the highly rated Lago Vista ISD, with elementary, middle, and high schools nearby, this homesite offers both convenience and value. Taxes are low and HOA dues are modest, making this an affordable way to enjoy hill country and lake living.

Just a short drive from Austin, this lot combines small-town charm with quick access to city amenities. Don’t miss this opportunity to create your dream home near Lake Travis in one of Central Texas’s most desirable communities.

Utility estimate is attached in MLS; buyers should obtain an updated estimate as costs may have changed. All information should be independently verified by the buyer.

Property Type
Land
Lot Size
0.28 acres
HOA
$240/year

Listing information last updated July 2, 2026.

Listed by REKonnection, LLC

MLS# 3734076 • Active

IDX inquiries: Keenan Group at Compass · (512) 415-7653

Highlights

Generous 0.28-acre lot
The lot is mostly level with a gentle slope, making it a great site to build
Community guidelines require a minimum 1,700 sq
site-built home with a maximum height of 15 feet
Taxes are low and HOA dues are modest, making this an affordable way to enjoy hill country and lake living
Just a short drive from Austin, this lot combines small-town charm with quick access to city amenities

Facts & Features

Exterior & Lot
Lot Size
0.28 Acres
Financial
HOA Fee
$240 / year
Original List Price
$83,990
Utilities
  • Cable Available
  • Electricity Available
  • Natural Gas Not Available
  • Sewer Available
  • Underground Utilities
  • Water Available
Water Source
See Remarks,Public
Sewer
See Remarks,Public Sewer

Transaction History

2 records on file

Every recorded listing, sale, and lease at 21105 Santa Rosa Ave, whoever represented it.

  1. ActiveListed 2025
    Current price: $79,990Original list: $83,990MLS 3734076
  2. SoldJune 30, 2004
    Listed at: $3,000MLS 720027

Prices shown are list prices. Closed sale prices are available to registered clients in accordance with ACTRIS rules.

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Price & Listing History

Listing timeline with current price, original ask, and market time.

View Timeline
Current list
$79,990
Original list
$83,990
Price movement
$4K reduction
Listed / DOM
Aug 27, 2025 · 420 days

Tax Record

Public record data from county appraisal records. Market value can differ from assessed value.

Assessed Value
$50,000
Assessment Year
2025
Parcel ID
000000162403
$50K
$7K
$6,500
2021
$50,000
+669.2% from prev
2025
YearTaxesTotal AssessmentLandAdditions
2025+669.2%
—$50,000$50,000—
2021
—$6,500$12,000—
5-Year Change669.2%
Map showing 21105 Santa Rosa Ave
21105 Santa Rosa Ave
Directions

Zoned Schools

Lago Vista ISD →

1 High School

Lago Vista

High SchoolGrades 9-12Zoned assignment

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.

Principal & interest
$443
HOA dues
$20

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 2026-10-17T23:07:14.625+00:00; normalized from annual dues.

20% ($16K)

Adjustable assumption - not a lending recommendation.

$79,990

Loan: $64K
Mortgage rate%
Payoff: ~2056
Rate source: Freddie Mac 30-year fixed average (PMMS via FRED), as of 2026-10-15
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Keenan Market Position

A sourced read on Lago Vista pricing, timing, and property scale. No automated valuation claim.

List price

$79,990

Price per sqft

Not available

Vs. Neighborhood guide reference price

Not available

Days on market

420 days

Original to current

$4K reduction

$84K original

Active inventory context

Ask for current inventory

Source: MLS Grid / Unlock MLS and Keenan Group review as of Oct 17, 2026.

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Homes sold by Keenan Group.

Verified property facts

Frequently Asked Questions

What school district is 21105 Santa Rosa Ave in?

21105 Santa Rosa 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.

What are the property taxes for 21105 Santa Rosa Ave?

The most recent annual property tax for 21105 Santa Rosa Ave is $1,079. 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.

How should a buyer estimate the monthly payment for 21105 Santa Rosa Ave?

This page does not assume a mortgage rate or publish a monthly payment for 21105 Santa Rosa Ave. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.

How does 21105 Santa Rosa Ave compare with other homes in Lago Vista?

As of Oct 17, 2026, 21105 Santa Rosa Ave is offered at $79,990. The current MLS snapshot shows 222 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.

What is the community structure at 21105 Santa Rosa Ave?

The MLS listing reports HOA or association dues of $240 annual for 21105 Santa Rosa 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.

Why Choose the #1 Austin Board Team for Lago Vista

#1 ABoR Team 20241,000+ Career SalesCompass Luxury Collection Specialist

#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

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Listing courtesy of Unlock MLS as distributed by MLS GRID. Information deemed reliable but not guaranteed. Neither the listing broker nor Compass RE Texas, LLC shall be responsible for any typographical errors, misinformation, or misprints.

IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS, as amended from time to time.

Based on information submitted to MLS GRID as of 10/17/2026, 6:07:14 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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Last updated: 10/17/2026, 6:07:14 PM

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