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$845,000
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4 bed, 3 bath, 2,627 sqft on 0.16 acres in Mount Bonnell Shores Sec 02. Austin, TX 78731. $845,000. Austin ISD.
Outstanding home in Mt. Bonnell Shores with Lake Austin access with a maintained day dock and park/playground. Sited on a stately corner lot on a cul-de-sac, this four bedroom, three bathroom home spans nearly 2,700 feet (previous appraisal lists square footage at over 3,100 ft., FYI) and has an intuitive, functional layout with a downstairs bedroom/bathroom, and other bedrooms up with a large and private primary suite. Spacious entertaining spaces that bring the outside in, with Juliet balconies, large windows, and two main level fireplaces. Large, two car garage, laundry room, and a 5 minute walk to private day dock and neighborhood park, with an HOA of less than $14 per month. Perfect for a family willing to call one of Austin's most special neighborhoods home
Verified property facts
4509 Tortuga CV is listed at $845,000 with 4 bedrooms, 3 full bathrooms, 2,627 square feet, 0.16-acre lot.
4509 Tortuga CV is zoned for Austin ISD with assigned schools: Highland Park (10/10) (elementary), Lamar (Austin ISD) (middle), McCallum (8/10) (high). School assignments should be verified directly with the district.
4509 Tortuga CV is a Residential built in 1990 featuring 4 bedrooms, 3 full bathrooms, 2,627 square feet, 0.16-acre lot.
4509 Tortuga CV is listed by Kuper Sotheby's Itl Rlty. Keenan Group at Compass presents this IDX listing and provides the accompanying market analysis using MLS Grid / Unlock MLS data reviewed as of Apr 25, 2026.
The most recent annual property tax for 4509 Tortuga CV is $11,346. 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.
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1 record on file
Every recorded listing, sale, and lease at 4509 Tortuga CV, whoever represented it.
Prices shown are list prices. Closed sale prices are available to registered clients in accordance with ACTRIS rules.
Listing timeline with current price, original ask, and market time.
Public record data from county appraisal records. Market value can differ from assessed value.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-25.0% | — | $753,616 | — | — |
2024+30.5% | — | $1,005,120 | $630,000 | $230,000 |
2023+6.7% | — | $770,000 | $630,000 | $375,120 |
2022+24.4% | — | $721,546 | $630,000 | $140,000 |
2021 | — | $580,000 | $360,000 | $361,546 |
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% ($169K)
Adjustable assumption - not a lending recommendation.
$845,000
Luxury property intelligence
A sourced read on Mount Bonnell Shores Sec 02 pricing, timing, and property scale. No automated valuation claim.
List price
$845,000
Price per sqft
$322/sqft
Vs. Neighborhood guide reference price
Not available
Days on market
Not available
Original to current
$70K reduction
$915K original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Apr 25, 2026.
Request Private Market AnalysisZIP-level neighborhoods, schools, lifestyle, and Austin market context
Active 78731 listings and Northwest Hills market context
District guide, nearby schools, and homes by attendance area
Private Austin CMA, TCAD context, and pricing strategy
Pricing, prep, launch timing, and Compass marketing strategy
#1 ABOR Team 2024 with $1B+ career sales volume
This page does not assume a mortgage rate or publish a monthly payment for 4509 Tortuga CV. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.
As of Apr 25, 2026, 4509 Tortuga CV is offered at $845,000. The current MLS snapshot shows 61 active listings in 78731. Keenan Group has completed 84 verified transactions in 78731 within its 1,000+ completed transactions and $1B+ career volume across Austin.
4509 Tortuga CV was built in 1990 (36 years ago). Buyers should budget for potential updates to major systems.
The MLS listing marks 4509 Tortuga CV as waterfront. The reported waterfront feature is Lake Privileges. Confirm shoreline access, dock rights, and floodplain status from current property documents during due diligence.
The MLS listing reports HOA or association dues of $165 annual for 4509 Tortuga CV. It does not establish included amenities, services, rules, reserves, or current assessments; verify those items in current association documents.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
Car-Dependent
No Nearby Transit
Somewhat Bikeable
Walk Score measures walkability based on distance to amenities. Transit Score measures public transportation access. Bike Score measures bikeability based on bike infrastructure and terrain.
7 events on record
Current Price
$845,000
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-25.0% | — | $753,616 | — | — |
2024+30.5% | — | $1,005,120 | $630,000 | $230,000 |
2023+6.7% | — | $770,000 | $630,000 | $375,120 |
2022+24.4% | — | $721,546 | $630,000 | $140,000 |
2021 | — | $580,000 | $360,000 | $361,546 |
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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