Active Listing  ·  30 days on market

3843 Derby Trl

Round Rock, TX 78681
$449,900
4 Bed 3 Bath 2,552 sqft $176/sqft Built 2003 0.22 acres 2-Car Garage Pool Mayfield Ranch Sec 02

Welcome to this stunning 4-bedroom home on a premium corner lot in the highly sought-after Mayfield Ranch community! This bright, open-concept residence offers a spacious layout with a dedicated office and formal dining room, perfect for both productivity and entertaining. Set on a generous corner lot with a large, private backyard shaded by mature trees, the home features a luxurious primary suite with dual vanities and a walk-in closet, comfortable carpet in the bedrooms, and durable solid-surface flooring throughout the rest of the home. The chef-friendly kitchen opens seamlessly to the living area with a large breakfast bar, making it ideal for staying connected with family and guests. Residents enjoy a beautifully maintained community with a sparkling pool, playground, and a strong sense of pride, all within top-rated Round Rock ISD schools. With tons of space, a huge yard, and effortless charm, this move-in-ready gem is a rare find—come make it yours today!

At $176/sqft, this home is 18% below the Round Rock active market average of $214/sqft, potentially representing value relative to comparable properties currently on the market. View Austin market report →

Location

3843 Derby Trl, Round Rock, TX 78681

Property Details

Price $449,900
Status Active Listing
Beds 4
Full Baths 2
Half Baths 1
Living Area 2,552 sqft
Lot Size 0.22 acres (9,635.47 sqft)
Year Built 2003
Garage 2 spaces
Stories ,
Type Residential · Single Family Residence
Subdivision Mayfield Ranch Sec 02
County Williamson
Zip Code 78681
$/sqft $176/sqft
Days on Market ,
HOA $42/Monthly
Annual Tax Est. $7,795.97
Pool Yes
Waterfront ,
New Construction ,
MLS # ACT240112737
List Date July 16, 2026
Elementary School Parkside
Middle School Stiles
High School Rouse
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.

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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 · July 16, 2026 $479,900
Previous ask $469,900
Current ask $449,900
Reduced $30,000 (-6.3%) 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
3213 Foothills Trl
Preserve At Stone Oak Ph 3 Sec 2
$449,999 $170 3 bd / 3 ba 2,654 sqft , 2026-05-20
4017 Darryl St
Highlands at Mayfield Ranch
$449,000 $225 4 bd / 2 ba 1,995 sqft , 2026-07-16
4006 Texella Cv
Preserve At Stone Oak Ph 2 Sec 3
$460,000 $196 4 bd / 2 ba 2,343 sqft , 2026-06-11
3440 Pine Needle Cir
Village At Mayfield Ranch Ph 03
$439,000 $214 4 bd / 2 ba 2,050 sqft , 2026-08-02
4733 Collins St
Gardens/Mayfield Condos
$464,900 $238 4 bd / 2 ba 1,953 sqft , 2026-04-10

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
$2,160/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
$89,980
20% conventional investment loan

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

Estimated Gross Rent+$2,160
Principal + Interest−$2,455
Property Tax (~2.1% TX avg)−$787
Insurance (~0.5%)−$187
Est. Monthly Cash Flow $-1,269

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 13, 2026.

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