Active Listing  ·  120 days on market

5307 Tortuga Trl

Austin, TX 78731
$4,607,500
4 Bed 6 Bath 3,858 sqft $1,194/sqft Built 2001 0.43 acres 2-Car Garage Pool Waterfront Mount Bonnell Shores

Discover a rare Lake Austin waterfront estate where luxury, privacy, and nature converge in a turnkey retreat designed for exceptional living and effortless entertaining. Set along the quiet, low-traffic Dry Creek inlet, this private sanctuary offers serene waterfront access and easy exploration by boat. The private two-story boathouse features an upper party deck and motorized boat lift, with a boat and custom golf cart included in the sale. At home, resort-style amenities invite relaxed days and memorable gatherings, including a pool and spa, fire pit, private sandy beach, and expansive lawn extending to the water’s edge. The lake-facing primary suite showcases breathtaking views of Lake Austin and Bright Leaf Preserve, complemented by a private balcony. Three additional ensuite bedrooms provide comfort and privacy for family and guests. A rare opportunity to embrace the finest in waterfront living, this exceptional estate is surrounded by nature and fully equipped for a lifestyle that feels like a permanent getaway.

At $1,194/sqft, this home is priced 206% above the Austin active market average of $390/sqft, reflecting premium positioning, typically tied to finishes, lot, location, or view. View Austin market report →

Location

5307 Tortuga Trl, Austin, TX 78731

Property Details

Price $4,607,500
Status Active Listing
Beds 4
Full Baths 4
Half Baths 2
Living Area 3,858 sqft
Lot Size 0.43 acres (18,543.49 sqft)
Year Built 2001
Garage 2 spaces
Stories ,
Type Residential · Single Family Residence
Subdivision Mount Bonnell Shores
County Travis
Zip Code 78731
$/sqft $1,194/sqft
Days on Market ,
HOA $160/Annually
Annual Tax Est. ,
Pool Yes
Waterfront Yes
New Construction ,
MLS # ACT235745460
List Date July 15, 2026
Elementary School Highland Park
Middle School Lamar (Austin ISD)
High School McCallum
School District Austin ISD

Austin ISD

Highland Park · Lamar (Austin ISD) · McCallum

Luke Allen (TREC #788149) has deep knowledge of Austin 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 15, 2026 $4,850,000
Previous ask $4,670,500
Current ask $4,607,500
▼ Reduced $242,500 (-5.0%) 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 Austin

Comparable Listings Right Now

Homes currently for sale in Austin 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
4514 Spanish Oak Trl
Balcones Park 01
$4,725,000 $946 5 bd / 4 ba 4,993 sqft , 2026-10-29
3418 Mount Bonnell Cir
Balcones Park Sec 08
$4,800,000 $1,125 4 bd / 4 ba 4,266 sqft , 2026-08-19
4201 GREEN CLIFFS Rd
Green Park
$4,995,000 $1,055 4 bd / 4 ba 4,733 sqft , 2026-10-01

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
$22,116/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
$921,500
20% conventional investment loan

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

Estimated Gross Rent+$22,116
Principal + Interest−$25,145
Property Tax (assumed ~2.1%)−$8,063
Insurance (assumed ~0.5%)−$1,920
Est. Monthly Cash Flow $-13,012

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 Austin, TX

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

Tesla Gigafactory 15-25 min E
Apple Campus (Domain) 20-30 min N
Google / Meta / Indeed 10-15 min downtown
Dell Medical School / UT Austin 10-20 min
Samsung Austin Semiconductor 25 min N

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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 · 41 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. The written content was last updated on October 28, 2026.

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

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