Collin Value

27a Rhea Mills Cir, Prosper, TX 75078

1,820 sqft, built 1985, in Collin Green. Appraised at $704,369 for 2026.

Collin County account 1651732

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Appraised value$704,369
Similar homes$720,574
No gap: similar homes are at or above the county value · bars start at $0

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

Appraised value
$704,369
Tax year 2026
Living area
1,820 sqft
$387 per sqft
Year built
1985
Homestead
Yes
Owner-occupied exemption on file

What we found

Unequal assessment

Weak

6 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $374.97/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 $371,259. Counting your land in place of theirs where theirs is less, they support a value of $720,574.

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, Collin Green, 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 increased 15.9% from $607,892 in 2025 to $704,369 in 2026.
  • Appraised value per square footThe current public record shows about $387 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Collin Green neighborhood and ZIP 75078.
  • Neighborhood value signalAmong 122 residential records in the same neighborhood, the average appraised value is about $318 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +8.7% on average.

Comparable assessments

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

  • 43a Rhea Mills Cir, Prosper, TX 75078
    1,833 sqft | $375/sqft | built 1985 | Similar size (1,833 vs 1,820 sqft); Built same year (1985); Lot 14% smaller (43,913 vs 51,340 sqft)
    $687,328
  • 44a Rhea Mills Cir, Prosper, TX 75078
    1,822 sqft | $379/sqft | built 1984 | Similar size (1,822 vs 1,820 sqft); Similar age (1984 vs 1985); Similar lot size (47,071 vs 51,340 sqft)
    $690,081
  • 28b Grindstone Dr, Prosper, TX 75078
    1,826 sqft | $344/sqft | built 1994 | Similar size (1,826 vs 1,820 sqft); Similar lot size (50,678 vs 51,340 sqft); Same neighborhood
    $628,809
  • 16b Grindstone Dr, Prosper, TX 75078
    1,746 sqft | $364/sqft | built 1985 | Similar size (1,746 vs 1,820 sqft); Built same year (1985); Similar lot size (49,153 vs 51,340 sqft)
    $635,008
  • 102 Collin Ct, Prosper, TX 75078
    1,834 sqft | $362/sqft | built 1988 | Similar size (1,834 vs 1,820 sqft); Similar age (1988 vs 1985); Similar lot size (47,393 vs 51,340 sqft)
    $664,223

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.

  • 1712 Colonial Ct, Prosper, TX 75078
    June-9-2026 | 1,664 sqft | $195/sqft | built 1986 | 9% size difference (1,664 sqft); Similar age (1986); Sold after the valuation date
    $325,000

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 15.9% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$704,369+$96,477+15.9%
2025$607,892+$49,577+8.9%
2024$558,315−$35,087−5.9%
2023$593,402+$130,069+28.1%
2022$463,333+$118,433+34.3%
2021$344,900+$17,585+5.4%
2020$327,315——
6-year total+$377,054+115.2%