Harris Value

18303 Longmoor Dr, Houston, TX 77084

4,340 sqft, built 1987, in Deerfield Village Appraised at $478,428 for 2026.

Harris County account 1151860470001

Appraised value
$478,428
Tax year 2026 · after any cap, before exemptions
Living area
4,340 sqft
$110 per sqft
Year built
1987
Good quality

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 77084 and Deerfield Village 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 delivered, 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 HCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value decreased 3.1% from $493,547 in 2025 to $478,428 in 2026.
  • Appraised value per square footThe current public record shows about $110 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Deerfield Village neighborhood and ZIP 77084.
  • Neighborhood value signalAmong 921 residential records in the same neighborhood, the average appraised value is about $125 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.9% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 18215 Heaton Dr, Houston, TX 77084
    4,359 sqft | $111/sqft | built 1986 | Similar size (4,359 vs 4,340 sqft); Similar age (1986 vs 1987); Similar lot size (9,620 vs 10,323 sqft)
    $483,022
  • 18207 Spruce Creek Dr, Houston, TX 77084
    4,033 sqft | $115/sqft | built 1987 | 7% smaller (4,033 vs 4,340 sqft); Built same year (1987); Similar lot size (10,671 vs 10,323 sqft)
    $465,104
  • 5003 Walnut Cove Dr, Houston, TX 77084
    4,418 sqft | $125/sqft | built 1988 | Similar size (4,418 vs 4,340 sqft); Similar age (1988 vs 1987); Similar lot size (11,025 vs 10,323 sqft)
    $551,221
  • 18003 Shireoak Dr, Houston, TX 77084
    4,304 sqft | $134/sqft | built 1989 | Similar size (4,304 vs 4,340 sqft); Similar age (1989 vs 1987); Lot 14% smaller (8,916 vs 10,323 sqft)
    $576,180
  • 4123 Rosebank Dr, Houston, TX 77084
    4,397 sqft | $112/sqft | built 1987 | Similar size (4,397 vs 4,340 sqft); Built same year (1987); Similar lot size (10,575 vs 10,323 sqft)
    $491,041

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: Harris County Appraisal District. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.