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Verified property facts
21603 Thomas Cv is listed at $949,995 with 4 bedrooms, 2 full, 1 half bathrooms, 2,445 square feet, 1.74-acre lot.
21603 Thomas Cv is zoned for Lago Vista ISD with assigned schools: Lago Vista (6/10) (elementary), Lago Vista (6/10) (middle), Lago Vista (6/10) (high). School assignments should be verified directly with the district.
21603 Thomas Cv is a Residential built in 2019 featuring 4 bedrooms, 2 full, 1 half bathrooms, 2,445 square feet, 1.74-acre lot.
21603 Thomas Cv 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 21603 Thomas Cv is $12,471. 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
Price Change with current price, original ask, and market time.
Custom-built for the lake. Priced for the buyer who recognizes value.
21603 Thomas Cove delivers 12-foot ceilings, floor-to-ceiling Lake Travis and Hill Country views, and a covered outdoor kitchen with built-in BBQ, refrigerator, and sink — all on a single level designed for the way people actually live. Four bedrooms, three baths, 2,445 square feet. Built to a finish level that holds up against anything new on the water.
1.74 acres. Flat. Cleared. Utilities in place. R4 multifamily zoning.
That last part matters. Add a guest house, in-law suite, barn, or workshop. Put a rental unit on the front of the property and let it offset your costs. Most buyers will never build a thing — but the option is always there, and in real estate, optionality is worth something.
The seller also owns the adjacent 1.86-acre tract if you want the full 3.6-acre picture. Rate buydown to 3.99% available through preferred lender.
4 BD | 3 BA | 2,445 SF | 1.74 AC | R4 Zoning | Lake Travis Views | Outdoor Kitchen | Adjacent 1.86 AC Available | Lake Travis & Hill Country Views
Property Type
Residential
Year Built
2019
Lot Size
1.74 acres
$/Sq Ft
$389
HOA
$240/mo
Garage
2 spaces
Listed by RE/MAX Suburbia
Property Details
Features
Appliances
Flooring
Features
Construction
Lot Features
Fencing
Foundation
Patio / Porch
Parking
Public record data from county appraisal records. Market value can differ from assessed value.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-15.3% | — | $598,595 | — | — |
2024+2.2% | — | $707,082 | $74,000 | $554,878 |
2023+102.2% | — | $691,555 | $101,750 | $605,332 |
2022-0.3% | — | $342,022 | $96,250 | $595,305 |
2021 | — | $343,170 | $37,500 | $304,522 |
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% ($190K)
$949,995
Luxury property intelligence
A sourced read on HIGHLAND LAKE ESTATES SEC 25 pricing, timing, and property scale. No automated valuation claim.
List price
$949,995
Price per sqft
$389/sqft
Vs. HIGHLAND LAKE ESTATES SEC 25 median
Not available
Days on market
123 days
Original to current
No verified reduction
$950K original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of May 10, 2026.
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District guide, nearby schools, and homes by attendance area
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#1 ABOR Team 2024 with $1B+ career sales volume
With 20% down ($189,999) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 21603 Thomas Cv is around $5,969 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
At $949,995, 21603 Thomas Cv is in the HIGHLAND LAKE ESTATES SEC 25 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.
21603 Thomas Cv was built in 2019, making it 7 years old with relatively recent construction.
21603 Thomas Cv 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.
9 events on record
Current Price
$949,995
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-15.3% | — | $598,595 | — | — |
2024+2.2% | — | $707,082 | $74,000 | $554,878 |
2023+102.2% | — | $691,555 | $101,750 | $605,332 |
2022-0.3% | — | $342,022 | $96,250 | $595,305 |
2021 | — | $343,170 | $37,500 | $304,522 |
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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