ALEX · Executive Summary
Comparable-sales valuation · Listed Property Buyer Model · Williamson County
ALEX AI Statistical Model
Minimum
Average
Median
Maximum
ALEX’s statistical model uses five comparable sales. Each sale is adjusted to this property’s 2,104 SF on the size relationship. Then each sale is weighted by how closely it resembles this house in the matching metric.
Traditional Arithmetic Model
Minimum
Average
Median
Maximum
The same five sales counted equally, without adjusting them to this house’s size. How and why the two rows differ is explained below.
Why is this important? ALEX’s model is based on MIT PhD-level statistics and NVIDIA models. It adjusts each sale for the size of the home and for when the sale took place, adjusts for the differences between each sale and this house that the model identifies, and includes the manual adjustments Diane made after comparing each sold home with this property. See the detailed report.
Compared on the average alone, ALEX’s valuation is $30,768 lower than the traditional arithmetic figure — 6.9% lower. The percentage is measured against the traditional average, the figure most readers would reach for first.
ALEX AI average
Traditional average
ALEX is lower by
Every one of the five comparables is smaller than this house. They run 1,652 to 1,960 SF against this property’s 2,104. A smaller house sells for fewer dollars but more dollars per SF, so averaging their per-SF rates and applying that rate here lifts the answer by the difference shown in section 02. The statistical model fits the size relationship from the sales themselves and adjusts each one to 2,104 SF before it counts — which is the whole of the difference between the two rows. The arithmetic figures are shown so that difference can be seen rather than taken on trust.
Offer, contract price
Seller-paid costs
Offer, net to seller
County appraised value, 2026
Financing
Down payment
Days on market
Price reductions
Move the price, not the credit. Because you are financing 100% with no down payment, that $8,000 of seller-paid closing costs helps make the VA purchase closable. Trading it away creates a higher cash requirement for you at the closing table. If necessary, raise the contract price and keep the $8,000 credit intact.
Every suggested counter keeps the full $8,000 credit for you at closing. No matter how you counter, consider always including the full $8,000 credit.
| Counter | Contract price | Seller credit | Net to seller | What it concedes |
|---|---|---|---|---|
| Where it stands | $419,900 | $8,000 | $411,900 | Full asking price; the credit is the only ask. |
| Split the difference | $422,600 | $8,000 | $414,600 | Half the room between here and the model average. |
| Ceiling | $425,300 | $8,000 | $417,300 | Net lands just under the model average. Past this you would be paying more than the evidence supports. |
All five are in Sierra Vista, this house’s own subdivision. The first column is the subject property and the columns after it are the comparable sales.
103 Maria CtThis houseMLS # 5525712 | 312 Susana DrSale 1MLS # 4046589 | 100 Susana DrSale 2MLS # 9111148 | 108 Susana DrSale 3MLS # 5219415 | 104 Susana DrSale 4MLS # 1592521 | 511 Debora DrSale 5MLS # 7511020 | |
|---|---|---|---|---|---|---|
| Distance from this house | — | 0.31 mi NE | 0.60 mi NE | 0.55 mi NE | 0.58 mi NE | 0.05 mi SE |
| Living area | 2,104 SF | 1,960 SF | 1,652 SF | 1,690 SF | 1,770 SF | 1,931 SF |
| Bedrooms | 4 | 4 | 3 | 3 | 3 | 3 |
| Bathrooms | 2 | 2 | 2 | 2 | 2 | 2 |
| Year built | 1992 | 1985 | 1994 | 1995 | 1995 | 1993 |
| Lot | 17,437 SF | 8,830 SF | 15,520 SF | 8,181 SF | 8,329 SF | 12,066 SF |
| Garage | 2-car | 2-car | 2-car | 2-car | 2-car | 2-car |
| Levels | One | One | One | One | One | One |
103 Maria CtThis houseMLS # 5525712 | 312 Susana DrSale 1MLS # 4046589 | 100 Susana DrSale 2MLS # 9111148 | 108 Susana DrSale 3MLS # 5219415 | 104 Susana DrSale 4MLS # 1592521 | 511 Debora DrSale 5MLS # 7511020 | |
|---|---|---|---|---|---|---|
| Listing date | 09/24/26 | 06/05/26 | 03/02/26 | 01/15/26 | 10/16/25 | 10/08/25 |
| Close date | Active | 07/31/26 | 05/22/26 | 05/22/26 | 12/03/25 | 11/14/25 |
| Days on market | 5 | 28 | 41 | 102 | 10 | 6 |
| Original list price | $419,900 | $392,000 | $380,000 | $380,000 | $374,900 | $370,000 |
| Last list price | $419,900 | $378,280 | $374,900 | $359,900 | $374,900 | $370,000 |
| Closed price | — | $375,000 | $375,500 | $352,500 | $380,000 | $375,000 |
| Buyer closing costs paid by the seller | — | −$6,625 | −$6,000 | — | — | — |
| Repairs at the buyer’s request | — | — | −$6,729 | — | — | −$13,000 |
| Net sale price | — | $368,375 | $362,771 | $352,500 | $380,000 | $362,000 |
| Months from sale to today | — | 2 months | 4 months | 4 months | 9 months | 10 months |
|---|---|---|---|---|---|---|
| Market trend to today | — | −$5,439 | +$2,350 | +$2,284 | +$5,724 | −$4,283 |
| Time-adjusted net sale price | — | $362,936 | $365,121 | $354,784 | $385,724 | $357,717 |
| Per SF | — | $185 | $221 | $210 | $218 | $185 |
103 Maria CtThis houseMLS # 5525712 | 312 Susana DrSale 1MLS # 4046589 | 100 Susana DrSale 2MLS # 9111148 | 108 Susana DrSale 3MLS # 5219415 | 104 Susana DrSale 4MLS # 1592521 | 511 Debora DrSale 5MLS # 7511020 | |
|---|---|---|---|---|---|---|
| Year built | — | +$25,786 | −$7,255 | −$10,575 | −$11,400 | −$3,620 |
| Lot size | — | +$40,724 | +$9,068 | +$43,795 | +$43,095 | +$25,412 |
| KitchenDiane revised | — | −$3,000 | — | −$15,000 | — | — |
| FlooringDiane revised | — | — | −$5,442 | −$5,288 | — | −$5,430 |
| AI adjustments confirmed | — | +$66,510 | −$3,629 | +$12,932 | +$31,695 | +$16,362 |
| Manual adjustments to AI values | — | −$3,000 | — | — | — | — |
| Total AI & Diane adjustments | — | +$63,510 | −$3,629 | +$12,932 | +$31,695 | +$16,362 |
| Master Bath | — | −$7,000 | — | −$15,000 | — | −$5,000 |
|---|---|---|---|---|---|---|
| Kitchen | — | — | −$4,000 | — | — | — |
| Back Yard | — | — | +$3,000 | — | — | — |
| 2nd bath | — | — | — | −$10,000 | — | — |
| Garage | — | — | — | −$2,000 | — | — |
| Yard/Trees | — | — | — | +$10,000 | — | — |
| Lighting | — | — | — | +$2,000 | — | — |
| Both Baths | — | — | — | — | −$10,000 | — |
| Yard Grooming | — | — | — | — | — | +$5,000 |
| Total added by Diane | — | −$7,000 | −$1,000 | −$15,000 | −$10,000 | — |
A row marked Diane revised is one where she changed the AI’s figure for at least one sale; her figures are in bold. Each table ends in its own subtotal, and the final valuation adds those subtotals to the net sale price.
103 Maria CtThis houseMLS # 5525712 | 312 Susana DrSale 1MLS # 4046589 | 100 Susana DrSale 2MLS # 9111148 | 108 Susana DrSale 3MLS # 5219415 | 104 Susana DrSale 4MLS # 1592521 | 511 Debora DrSale 5MLS # 7511020 | |
|---|---|---|---|---|---|---|
| Scaling to 2,104 SF | — | +$30,816 | +$98,633 | +$86,405 | +$76,880 | +$33,514 |
| Statistical size adjustment | — | −$13,758 | −$46,935 | −$42,522 | −$33,546 | −$16,651 |
| Total size adjustment | — | +$17,058 | +$51,698 | +$43,883 | +$43,334 | +$16,863 |
Scaling to 2,104 SF converts each adjusted sale price to this house’s size at that sale’s own price per SF; the statistical size adjustment then corrects for smaller houses selling for more per SF. Dollar figures are rounded where they first appear, and every total is the sum of the lines above it.
| Weight in the statistical model | — | 26.8% | 24.2% | 23.6% | 12.8% | 12.5% |
|---|---|---|---|---|---|---|
| Net sale price | — | $368,375 | $362,771 | $352,500 | $380,000 | $362,000 |
| Time adjustment | — | −$5,439 | +$2,350 | +$2,284 | +$5,724 | −$4,283 |
| AI & Diane adjustments | — | +$63,510 | −$3,629 | +$12,932 | +$31,695 | +$16,362 |
| Added by Diane | — | −$7,000 | −$1,000 | −$15,000 | −$10,000 | — |
| Size adjustment | — | +$17,058 | +$51,698 | +$43,883 | +$43,334 | +$16,863 |
| Final adjusted value | — | $436,504 | $412,190 | $396,599 | $450,753 | $390,942 |
| Final adjusted sale price per SF | — | $207 | $196 | $188 | $214 | $186 |