109 Leon Loop
The ALEX Model is unique in both comparable selection and precision valuation.
Step 1 · Comparable sale selection
3 of these comparables lie past the usual distance for a match; this market area holds nothing closer.
Step 2 · Valuation, one sale
| 2.1 · Closed price | $660,000 | |
| 2.2 · Buyer closing costs paid by seller | $651,000 | −$9,000 |
| 2.3 · Buyer required repairs paid by seller | $651,000 | — |
| 2.4 · Time adjustment | $639,451 | −$11,549 |
| 2.5 · ALEX Model Changes | $630,209 | −$9,242 |
| Price per SF | $164.67/SF | |
| 2.8 · SF adjustment | $546,060 | −$84,149 |
| 2.9 · Size correction | $597,002 | +$50,942 |
216 Rieti, step by step.
Two models, the same sales
| Lowest | Average | Median | Highest | |
|---|---|---|---|---|
| ALEX Model | $563,227 | $593,272 | $597,002 | $628,027 |
| Standard Arithmetic Model | $566,233 | $629,864 | $581,445 | $716,137 |
The Standard Arithmetic Model is each sale’s price per SF times this home’s 3,316 SF, every sale counted equally, nothing adjusted. The ALEX Model nets out seller concessions, brings each sale to today, adjusts it for every measured difference, corrects for size and weights it by how closely it matches. Here the ALEX Model is $36,592 (5.8%) lower.
How accurate it is
Each sale was valued as if unknown, from sales before it, in a test held out after 03/30/26; the error is the gap to what it actually sold for.
Bringing each sale to today
| Sale | Sold | Market since | Adjustment |
|---|---|---|---|
| 216 Rieti | 08/26 | -1.8% | −$11,549 |
| 117 Rosa | 07/26 | -3.5% | −$22,464 |
| 504 Leon | 01/26 | -1.8% | −$10,893 |
| 104 Leon | 01/25 | -6.6% | −$43,304 |
| 109 Mark | 11/24 | -7.8% | −$57,075 |
ALEX’s index, blended toward the Austin area where county sales are thin: built from homes that sold more than once, so a change in what sold does not read as a change in prices.
Other estimates of this home
| Source | Estimate | vs ALEX |
|---|---|---|
| ALEX valuation | $593,272 | — |
| Zillow Zestimate | $632,300 | +6.6% |
| HouseCanary | $688,249 | +16.0% |
| WCAD market value, 2026 | $643,869 | +8.5% |
Automated estimates use public records and broad statistics; they do not see this home’s comparable sales or their concessions. A county value is set for taxes as of January 1.
This is a comparable-sales opinion of value. It is not a certified appraisal and not a mortgage or lending document. Sale prices are net of seller-paid closing costs and buyer-requested repairs, adjusted to today with ALEX’s index. Sale and listing data: ABOR MLS via secure APIs, as of October 28, 2026, 1:45 PM CDT. Tax values: the county appraisal district where available. ALEX Companies · Licensed by the Texas Real Estate Commission · Broker: Alexander Tiffany Southwest, LLC, #565194-BB · Diane Hart Alexander, Designated Broker, #574877-B.