Active Listing  ·  227 days on market

3959 Lord Byron Cir

Round Rock, TX 78664
$675,000
4 Bed 4 Bath 4,062 sqft $166/sqft Built 2001 0.21 acres 3-Car Garage Pool Forest Creek Sec 16

Rare opportunity to own a home that stands out from the norm. Designed for both entertaining and everyday comfort, this one-of-a-kind property offers a charming and inviting atmosphere for guests and family alike. Relax poolside or enjoy hours of fun in the game room. Wander through multiple patios that extend your living space outdoors, creating seamless indoor-outdoor flow. At the heart of the home is a versatile courtyard and carport area - perfect for entertaining, sports, lounging, or parking up to 9 vehicles. Laundry is a pleasure in the spacious laundry suite, which opens to a bonus room ideal for reading, music, hobbies, or whatever your heart desires. The guest wing provides privacy and flexibility, featuring two bedrooms and a full bathroom. The downstairs office includes its own exterior entrance through a porte-cochere, offering protected, weather free access - ideal for guests or working from home. Come explore this exceptional home filled with endless possibilities - waiting for you to make it your own.

At $166/sqft, this home is 22% 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

3959 Lord Byron Cir, Round Rock, TX 78664

Property Details

Price $675,000
Status Active Listing
Beds 4
Full Baths 4
Half Baths ,
Living Area 4,062 sqft
Lot Size 0.21 acres (9,234.72 sqft)
Year Built 2001
Garage 3 spaces
Stories ,
Type Residential · Single Family Residence
Subdivision Forest Creek Sec 16
County Williamson
Zip Code 78664
$/sqft $166/sqft
Days on Market ,
HOA $160/Quarterly
Annual Tax Est. ,
Pool Yes
Waterfront ,
New Construction ,
MLS # ACT215816858
List Date January 8, 2026
Elementary School Forest Creek
Middle School Ridgeview
High School Cedar Ridge
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 · January 8, 2026 $715,000
Previous ask $687,000
Current ask $675,000
Reduced $40,000 (-5.6%) 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
3988 Lord Byron Cir
Forest Crk Sec 16
$679,000 $177 5 bd / 4 ba 3,826 sqft , 2026-06-29
2244 Fernspring Dr
Lake Forest 02 Village 01
$669,000 $161 4 bd / 4 ba 4,161 sqft , 2026-04-24
2260 Fernspring Dr
Lake Forest 02 Village 01
$695,000 $193 4 bd / 4 ba 3,604 sqft , 2026-06-26
207 Silver Oak Dr
Creek Estates Ph 2
$699,999 $215 5 bd / 4 ba 3,262 sqft , 2026-03-16
3712 Royal Port Rush Dr
Forest Creek Ph 01 Sec 01
$650,000 $241 4 bd / 3 ba 2,692 sqft , 2026-08-20

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
$3,240/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
$135,000
20% conventional investment loan

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

Estimated Gross Rent+$3,240
Principal + Interest−$3,684
Property Tax (~2.1% TX avg)−$1,181
Insurance (~0.5%)−$281
Est. Monthly Cash Flow $-1,906

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 July 30, 2026.

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