Collin Value

3909 Merriman Dr, Plano, TX 75074

4,684 sqft, built 1990, in Shepherds Creek Addition Appraised at $1,437,823 for 2026.

Collin County account 1651028

Likely too high

about $298,000

8 similar homes nearby point to a value about $298,000 lower than yours.

Appraised value$1,437,823
Similar homes$1,139,945
$297,878 gap · bars start at $0

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

Appraised value
$1,437,823
Tax year 2026
Living area
4,684 sqft
$307 per sqft
Year built
1990
Homestead
Yes
Owner-occupied exemption on file

Why we think so

Unequal assessment

Strong

7 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $243.37/sqft, which supports a value of $1,139,945.

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 75074 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 $878,574 in 2025 to $1,437,823 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 $307 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Shepherds Creek Addition neighborhood and ZIP 75074.
  • Neighborhood value signalAmong 158 residential records in the same neighborhood, the average appraised value is about $320 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +17.4% on average.

Comparable assessments

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

  • 7225 Moss Ridge Rd, Parker, TX 75002
    4,729 sqft | $243/sqft | built 1990 | Similar size (4,729 vs 4,684 sqft); Built same year (1990); Similar lot size (89,603 vs 86,523 sqft)
    $1,150,918
  • 7245 Moss Ridge Rd, Parker, TX 75002
    4,844 sqft | $196/sqft | built 1991 | Similar size (4,844 vs 4,684 sqft); Similar age (1991 vs 1990); Similar lot size (86,292 vs 86,523 sqft)
    $950,000
  • 3925 Merriman Dr, Plano, TX 75074
    4,530 sqft | $338/sqft | built 1985 | Similar size (4,530 vs 4,684 sqft); Similar age (1985 vs 1990); Similar lot size (86,780 vs 86,523 sqft)
    $1,529,122
  • 4205 Sycamore Ln, Parker, TX 75002
    5,052 sqft | $187/sqft | built 1984 | 8% larger (5,052 vs 4,684 sqft); Similar lot size (87,120 vs 86,523 sqft); Both have pool
    $943,122
  • 4104 Brookwood Dr, Parker, TX 75002
    4,987 sqft | $195/sqft | built 1993 | 6% larger (4,987 vs 4,684 sqft); Similar age (1993 vs 1990); Similar lot size (78,408 vs 86,523 sqft)
    $970,748

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.

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 63.7% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$1,437,823+$559,249+63.7%
2025$878,574−$86,283−8.9%
2024$964,857+$51,091+5.6%
2023$913,766+$125,165+15.9%
2022$788,601+$111,722+16.5%
2021$676,879+$50,938+8.1%
2020$625,941——
6-year total+$811,882+129.7%