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Verified property facts
18783 Fm-1431 is listed at $2,200,000 with 0 bedrooms, 12.50-acre lot. This places it above the 78645 median of $1,025,000.
18783 Fm-1431 is zoned for Leander ISD with assigned schools: CC Mason (elementary), Cedar Park (middle), Cedar Park (high). School assignments should be verified directly with the district.
18783 Fm-1431 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.
The most recent annual property tax for 18783 Fm-1431 is $21,775. 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.
With 20% down ($440,000) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 18783 Fm-1431 is around $13,230 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.
OWN THE MOUNTAIN TOP - this exclusive WATER VIEW PROPERTY with DEEDED LAKE ACCESS is UNRESTRICTED other than by municipal zoning. Currently ZONED R-1. Perfect location for constructing a prime residence and is sub-dividable. The mountain top offers 360 degree vistas of the Big Sandy Creek Arm of Lake Travis and the surrounding Hill Country. NO HOA. Inside Jonestown City Limits with Leander ISD Schools. Master Survey available. Municipal Water connections are not present but are available via Jonestown WSC with a distribution line along the property west boundary. On-site septic is necessary. The information provided is deemed reliable but not guaranteed and should be independently verified.
Property Type
Land
Lot Size
12.50 acres
Listed by X3 REALTY
Property Details
Lot Features
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% ($440K)
$2,200,000
Luxury property intelligence
A sourced read on WEBB H E SUBD NO 3 pricing, timing, and property scale. No automated valuation claim.
List price
$2,200,000
Price per sqft
Not available
Vs. WEBB H E SUBD NO 3 median
Not available
Days on market
21 days
Original to current
No verified reduction
$2.2M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of May 10, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
At $2,200,000, 18783 Fm-1431 is in the WEBB H E SUBD NO 3 market where there are currently 251 active listings in 78645. The Keenan Group has completed 6 transactions in 78645 as part of 1,000+ career sales totaling $1B+ across Austin.
18783 Fm-1431 sits on a 12.50-acre lot, providing substantial outdoor living space. Properties of this scale in Austin's luxury market typically feature pool areas, outdoor kitchens, and mature landscaping. Confirm specific amenities with the listing agent.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
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