Collin Value

4400 Sunflower Ln, Prosper, TX 75078

4,366 sqft, built 2017, in Lilyana Phase 7. Appraised at $729,605 for 2026.

Collin County account 2753832

Likely too high

about $31,000

8 similar homes nearby point to a value about $31,000 lower than yours.

Appraised value$729,605
Similar homes$698,647
$30,958 gap · bars start at $0

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

Appraised value
$729,605
Tax year 2026
Living area
4,366 sqft
$167 per sqft
Year built
2017
Homestead
Yes
Owner-occupied exemption on file

Why we think so

Unequal assessment

Strong

8 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $158.75/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 $170,000. Counting your land in place of theirs where theirs is less, they support a value of $698,647.

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 75078, Lilyana Phase 7, Celina, and Prosper 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 decreased 10.0% from $811,000 in 2025 to $729,605 in 2026.
  • Appraised value per square footThe current public record shows about $167 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lilyana Phase 7 neighborhood and ZIP 75078.
  • Neighborhood value signalAmong 1,230 residential records in the same neighborhood, the average appraised value is about $191 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +13.0% on average.

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.

  • 740 Salada Dr, Prosper, TX 75078
    September-4-2026 | 4,439 sqft | $191/sqft | built 2013 | Similar size (4,439 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $850,000
  • 1600 Wichita Dr, Prosper, TX 75078
    October-1-2026 | 4,637 sqft | $216/sqft | built 2018 | 6% size difference (4,637 sqft); Similar age (2018); Sold after the valuation date
    $1,000,000
  • 920 Waterview Dr, Prosper, TX 75078
    August-31-2026 | 4,490 sqft | $178/sqft | built 2020 | Similar size (4,490 sqft); Similar age (2020); Sold after the valuation date
    $800,000
  • 1300 Waterton Dr, Prosper, TX 75078
    August-13-2026 | 4,213 sqft | $214/sqft | built 2018 | Similar size (4,213 sqft); Similar age (2018); Sold after the valuation date
    $900,000
  • 841 Wind Brook Ln, Prosper, TX 75078
    September-16-2026 | 4,382 sqft | $156/sqft | built 2005 | Similar size (4,382 sqft); Sold after the valuation date
    $684,999

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

Down 10.0% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$729,605−$81,395−10.0%
2025$811,000−$37,500−4.4%
2024$848,500+$48,500+6.1%
2023$800,000+$11,871+1.5%
2022$788,129+$229,533+41.1%
2021$558,596——
5-year total+$171,009+30.6%