Collin Value

817 Willow Stream Dr, Lavon, TX 75166

1,585 sqft, built 2025, in Hillstead Subdivision Appraised at $360,887 for 2026.

Collin County account 2913737

Possibly too high

about $13,000

8 similar homes nearby point to a value about $13,000 lower than yours.

Appraised value$360,887
Similar homes$348,097
$12,790 gap · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Appraised value
$360,887
Tax year 2026
Living area
1,585 sqft
$228 per sqft
Year built
2025
Homestead
Yes
Owner-occupied exemption on file

Why we think so

Unequal assessment

Moderate

8 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $206.97/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $125,000. Counting your land in place of theirs where theirs is less, they support a value of $348,097.

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 75166 and Hillstead Subdivision assessment pages.

Protest deadline

The 2026 protest deadline was . The 2027 protest deadline is . 2027 notices usually arrive in April.

Deadline rule: May 15, or 30 days after your notice of appraised value is mailed, whichever is later. A deadline on a weekend or holiday moves to the next business day. Evidence is reviewed by the Appraisal Review Board (ARB). Dates checked against the official source.

Assessment snapshot

These public CCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value changed from $78,750 in 2025 to $360,887 in 2026. A change this large often reflects new construction, a reclassification or a record correction, so check it against the county record.
  • Appraised value per square footThe current public record shows about $228 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Hillstead Subdivision neighborhood and ZIP 75166.
  • Neighborhood value signalAmong 269 residential records in the same neighborhood, the average appraised value is about $106 per square foot.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

Recent comparable sales

Sales selected by similarity to the subject property. Texas is a non-disclosure state, so these MLS-listed sales are supplemental evidence.

  • 609 Cherish Day Dr, Lavon, TX 75166
    August-18-2026 | 1,582 sqft | $185/sqft | built 2025 | Similar size (1,582 sqft); Similar age (2025); Sold after the valuation date
    $292,705
  • 912 Lost Holly Ln, Lavon, TX 75166
    September-1-2026 | 1,520 sqft | $194/sqft | built 2026 | Similar size (1,520 sqft); Similar age (2026); Sold after the valuation date
    $294,990
  • 658 Walkabout Pl, Lavon, TX 75166
    July-24-2026 | 1,604 sqft | $178/sqft | built 2026 | Similar size (1,604 sqft); Similar age (2026); Sold after the valuation date
    $285,755
  • 544 Lucas Ln, Lavon, TX 75166
    August-28-2026 | 1,555 sqft | $205/sqft | built 2021 | Similar size (1,555 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $319,000
  • 329 Millwood Rd, Lavon, TX 75166
    July-21-2026 | 1,504 sqft | $187/sqft | built 2026 | 5% size difference (1,504 sqft); Similar age (2026); Sold after the valuation date
    $280,990

Public appraisal comparison for 2026. Prepared . Appraisal source: Collin Central Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 358.3% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$360,887+$282,137+358.3%
2025$78,750——
1-year total+$282,137+358.3%