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This property has sold on August 19, 2019. Looking for something similar? Contact us or browse available homes.

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$419,900
last listedWhy you're seeing this property: Unlike major portals that hide off-market listings, we maintain the most comprehensive Austin property database. View market history, neighborhood data, and discover similar homes currently for sale. #1 Austin Realtor Team 2024.
Another exceptional Castle Hill Duplex contemporary remodel. Mere steps from the Domain, this highly-desirable 3/2 & 2/2 unit configuration provides maximum rental income ($3000/mo) or owner-occupants enjoy mortgage covered by neighbor. Very rare *individual garages* & *alley access* make this one of the more amenity-heavy duplexes in Austin. Upgrades include: One new HVAC system, gutters, S/S appliances!FEMA - Unknown
Property Type
Residential Income
Year Built
1983
Lot Size
0.21 acres
$/Sq Ft
$212
Listed by Castle Hill Duplex
Property Details
Verified property facts
12400 Alderbrook Dr is listed at $419,900 with 1,980 square feet, 0.21-acre lot.
12400 Alderbrook Dr is zoned for Austin ISD with assigned schools: Pillow (6/10) (elementary), Burnet (Austin ISD) (middle), Anderson (7/10) (high). School assignments should be verified directly with the district.
12400 Alderbrook Dr is a Residential Income built in 1983 featuring 1,980 square feet, 0.21-acre lot.
12400 Alderbrook Dr is presented by the Keenan Group at Compass Real Estate, the #1 Austin Board of Realtors Team (2024) with 1,000+ career transactions and $1B+ in career volume across Austin's luxury market.
With 20% down ($83,980) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 12400 Alderbrook Dr is around $2,949 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
#1 Austin Board of Realtors Team. Over 1,000 successful transactions with high-end expertise.
25+ years advising buyers and sellers in this community
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 |
|---|---|---|---|---|
2025-21.7% | — | $515,632 | $66,742 | $191,075 |
2024+13.3% | — | $658,697 | $125,000 | $460,310 |
2023+22.7% | — | $581,455 | $125,000 | $533,698 |
2022+34.9% | — | $473,895 | $125,000 | $456,456 |
2021 | — | $351,262 | $125,000 | $348,895 |
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% ($84K)
$419,900
Luxury property intelligence
A sourced read on North Star Sec 02 pricing, timing, and property scale. No automated valuation claim.
List price
$419,900
Price per sqft
$212/sqft
Vs. North Star Sec 02 median
Not available
Days on market
2,496 days
Original to current
No verified reduction
$419.9K original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Apr 25, 2026.
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Pricing, prep, launch timing, and Compass marketing strategy
#1 ABOR Team 2024 with $1B+ career sales volume
At $419,900, 12400 Alderbrook Dr is in the North Star Sec 02 market where there are currently 53 active listings in 78758. The Keenan Group has completed 6 transactions in 78758 as part of 1,000+ career sales totaling $1B+ across Austin.
12400 Alderbrook Dr was built in 1983 (43 years ago). Buyers should budget for potential updates to major systems.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
5 events on record
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-21.7% | — | $515,632 | $66,742 | $191,075 |
2024+13.3% | — | $658,697 | $125,000 | $460,310 |
2023+22.7% | — | $581,455 | $125,000 | $533,698 |
2022+34.9% | — | $473,895 | $125,000 | $456,456 |
2021 | — | $351,262 | $125,000 | $348,895 |
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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