Active Listing  ·  212 days on market

1801 Sun Lake None

Round Rock, TX 78681
$825,000
4 Bed 4 Bath 3,292 sqft $251/sqft Built 1983 0.63 acres 2-Car Garage Pool Tonkawa Village

In a world of cookie-cutter subdivisions and tiny backyards, Tonkawa Springs offers something increasingly rare: room to spread out, mature trees, spring-fed ponds, and a neighborhood where nature and community still take center stage.

Set beneath mature shade trees on a spacious lot, this thoughtfully updated home features four bedrooms plus two additional flex rooms that can easily serve as guest rooms, home offices, a gym, craft room, playroom, or homeschool space. Every bedroom is generously sized, and abundant storage throughout helps keep daily life organized. Recent improvements blend comfort and character, including triple-pane vinyl windows, beautiful acacia wood flooring, and a chef-inspired kitchen equipped with a Fratelli Onofri double gas range, built-in wall oven, and microwave. The gameroom showcases reclaimed wood from Camp Mabry, creating a one-of-a-kind focal point.

The backyard was designed for gathering. Whether you're hosting pool parties, roasting marshmallows around the firepit, watching the game from the cabana bar, or enjoying a quiet evening beneath the heritage oak, there is room here to create memories for years to come. A large composite deck expands the entertaining space, while the magnificent heritage oak provides shade, beauty, and plenty of room for backyard adventures. For buyers seeking additional backyard privacy, landscaping or 6-foot wood privacy fencing would allow you to customize the outdoor space to your preferences. (But you may find you WANT to get to know the neighbors-they are pretty great!)

Tonkawa Springs remains one of Round Rock's most distinctive neighborhoods, known for its spring-fed ponds, abundant wildlife, mature trees, oversized homesites, and strong sense of community—all just minutes from top-rated schools, shopping, dining, and major employers. Opportunities in this neighborhood don't come up very often, so don't miss your chance!

At $251/sqft, this home is priced 18% above the Round Rock active market average of $213/sqft, reflecting premium positioning, typically tied to finishes, lot, location, or view. View Austin market report →

Location

1801 Sun Lake None, Round Rock, TX 78681

Property Details

Price $825,000
Status Active Listing
Beds 4
Full Baths 4
Half Baths ,
Living Area 3,292 sqft
Lot Size 0.63 acres (27,442.8 sqft)
Year Built 1983
Garage 2 spaces
Stories ,
Type Residential · Single Family Residence
Subdivision Tonkawa Village
County Williamson
Zip Code 78681
$/sqft $251/sqft
Days on Market ,
HOA $180/Annually
Annual Tax Est. $11,196.25
Pool Yes
Waterfront ,
New Construction ,
MLS # ACT215474216
List Date January 16, 2026
Elementary School Old Town
Middle School Walsh
High School Round Rock
School District ,

Luke Allen (TREC #788149) has deep knowledge of Round Rock and surrounding markets. Whether you're buying, selling, or just researching comparable sales, reach out for a no-pressure conversation.

Schedule a Call →

Price History

How This Ask Has Moved

Original list price versus what this home is asking today. Straight from the ACTRIS MLS feed, no interpretation.

Original ask · January 16, 2026 $899,000
Previous ask $850,000
Current ask $825,000
Reduced $74,000 (-8.2%) from original ask

Source: ACTRIS MLS. Price change timestamp reflects the most recent adjustment on record; the feed does not expose intermediate steps between the original ask and today's ask.

Similar Homes on the Market in Round Rock

Comparable Listings Right Now

Homes currently for sale in Round Rock with similar bedroom count, size, and price range, giving you real-time context for how this property's asking price compares to the active market.

AddressList Price$/sqftBeds/BathsSqftDOMListed
2909 Agave Loop
Behrens Ranch
$829,000 $218 5 bd / 4 ba 3,808 sqft , 2026-04-02
3327 Marcasite Dr
Walsh Ranch Sec 03
$849,000 $236 4 bd / 4 ba 3,597 sqft , 2026-06-10
3433 Alexandrite Way
Walsh Ranch Sec 03
$800,000 $224 4 bd / 4 ba 3,574 sqft , 2026-06-16
3527 Alexandrite Way
Walsh Ranch Sec 03
$795,000 $242 4 bd / 4 ba 3,285 sqft , 2026-06-17
1314 Cardinal Ln
Sauls Ranch East
$790,000 $275 5 bd / 5 ba 2,875 sqft , 2026-05-18

Source: ACTRIS MLS, live listings. Similar by ±1 bed, ±35% price, ±35% sqft. Contact Luke for a formal comparative market analysis.

Investment Analysis

Rental Income Potential

The numbers below use conservative Austin-market assumptions. They are estimates, not a guarantee. Actual rents vary by condition, timing, and management. Read our full Austin rental property guide →

Est. Monthly Rent
$3,960/mo
0.48% rule · conservative Austin est.
Gross Yield
5.76%
Annual rent ÷ purchase price
Cap Rate (est.)
3.46%
NOI after 40% vacancy + expenses
Down Payment
$165,000
20% conventional investment loan

Monthly Cash Flow Breakdown (20% down · 7.25% rate)

Estimated Gross Rent+$3,960
Principal + Interest−$4,502
Property Tax (~2.1% TX avg)−$1,444
Insurance (~0.5%)−$344
Est. Monthly Cash Flow $-2,330

At current rates and prices, many Austin luxury properties run neutral or slightly negative on pure cash flow, appreciation and equity paydown are the primary return drivers. BRRRR and off-market acquisitions can improve day-one cash flow. Learn about the BRRRR method in Austin →

Commute & Employment

Major Employers Near Round Rock, TX

Round Rock sits within commuting range of Austin's major tech, manufacturing, and corporate campuses. Approximate drive times from this area:

Dell Technologies HQ 5 min
Apple Campus (Domain) 15 min S
Samsung Austin Semiconductor 20 min SW
Tesla Gigafactory 35 min S

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About the Author
Luke Allen, Austin TX Realtor, TREC #788149
Luke Allen
Licensed Austin TX Realtor · TREC #788149 · Full-time since 2019
★★★★★ 5.0 on Google · 30 Reviews

Luke Allen is a full-time Austin TX Realtor with the Austin Marketing + Development Group brokerage. He works with buyers, sellers, and investors across every Austin ISD and the surrounding neighborhoods, from Downtown and East Austin to Round Rock, Cedar Park, and the Hill Country. Every page on this site is written and maintained by Luke. This page was last updated on August 15, 2026.

📞 (254) 718-2567 [email protected] More about Luke →