ALEX · Alexander Tiffany Southwest, LLC – ALEX Companies

2708 Springwood Lane

Georgetown, TX 78628 – Falls Of San Gabriel
MLS # 4222044
Prepared for TEMPLATE
Prepared by Diane Hart Alexander
Supplement A · The ALEX Model
Version 14.437
Sunday, October 18, 2026 · 10:37 AM CDT
Privileged & Confidential For use by ALEX Agents and Clients only. Sharing this report or its information with any third party without ALEX’s express written consent is prohibited and subjects the disclosing party to legal action. ALEX Model · Patent Pending

Two models, the same sales

LowestAverageMedianHighest
ALEX Model$680,230$693,921$680,230$718,688
Standard Arithmetic Model$715,067$735,696$735,696$756,324

The Standard Arithmetic Model is each sale’s price per SF times this home’s 2,990 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 $41,775 (5.7%) lower.

How one sale becomes a value

Sale price $750,000
1 · Seller concessions $750,000 —
2 · Time adjustment $732,574 −$17,426
3 · ALEX Model & Agent Changes $678,077 −$54,497
Price per SF $228.69/SF
5 · SF adjustment $683,794 +$5,717
6 · Size correction $680,230 −$3,564

3006 Hawthorne, step by step.

How the comparable sales were chosen

Closed sales in the market area that are fair evidence111
In this home's subdivision2
Same school district2
Same elementary school2
The same kind of home2
Searched: Falls of San Gabriel, same phase2
Within 25% of this home's size, sold in the last 9 months2
Close enough on seven measures of similarity2
Comparable sales used2

2 of these comparables lie past the usual distance for a match; this market area holds nothing closer.

How accurate it is

Sales it was tested on19,621
Typical error (median)8.2%
Average error11.5%
Confidence in this valuationMedium (64/100)

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

SaleSoldMarket sinceAdjustment
3006 Hawthorne05/26-2.3%−$17,426
2600 Grapevine Springs01/26-0.9%−$6,446

ALEX’s repeat-sales index for Williamson County, 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

SourceEstimatevs ALEX
ALEX valuation$693,921—
Zillow Zestimate$659,500-5.0%
HouseCanary$656,747-5.4%
WCAD market value, 2026$830,883+19.7%

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 repeat-sales index for Williamson County. Sale and listing data: ABOR MLS via secure APIs. 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.