Harris Value

29843 Keen Rd, Tomball, TX 77377

2,762 sqft, built 1975 Appraised at $604,140 for 2026.

Harris County account 0402700020004

Appraised value
$604,140
Tax year 2026 · after any cap, before exemptions
Market value
$923,633
Living area
2,762 sqft
$219 per sqft
Year built
1975
Average quality
Homestead
Yes
Owner-occupied exemption on file

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 77377 and HCAD Appraisal Area 2551.00 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 increased 10.0% from $549,219 in 2025 to $604,140 in 2026.
  • Appraised value per square footThe current public record shows about $219 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $319,493 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 77377.
  • Neighborhood value signalAmong 24 residential records in the same neighborhood, the average appraised value is about $200 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +10.8% on average.

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.

  • 16318 Avenplace Rd, Tomball, TX 77377
    July-31-2026 | 2,816 sqft | $140/sqft | built 1988 | Similar size (2,816 sqft); Sold after the valuation date
    $395,000
  • 15606 Lago Villa Dr, Tomball, TX 77377
    August-11-2026 | 2,799 sqft | $126/sqft | built 1992 | Similar size (2,799 sqft); Sold after the valuation date
    $353,000
  • 16415 Lakestone Dr, Tomball, TX 77377
    August-19-2026 | 2,862 sqft | $118/sqft | built 1991 | Similar size (2,862 sqft); Sold after the valuation date
    $339,000
  • 15607 Artoys Dr, Tomball, TX 77377
    July-22-2026 | 2,612 sqft | $107/sqft | built 1978 | 5% size difference (2,612 sqft); Similar age (1978); Sold after the valuation date
    $280,000
  • 15627 Gettysburg Dr, Tomball, TX 77377
    May-12-2026 | 2,746 sqft | $147/sqft | built 1983 | Similar size (2,746 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $405,000

Comparable assessments

No usable assessment comparisons are available in this data snapshot.

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.