Harris Value

813 Martin St, Houston, TX 77018

1,536 sqft, built 1945, in Central Northwest Appraised at $326,818 for 2026.

Harris County account 0670470040143

Appraised value
$326,818
Tax year 2026 · after any cap, before exemptions
Market value
$500,242
Living area
1,536 sqft
$213 per sqft
Year built
1945
Low 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 77018 and Central Northwest 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 $297,108 in 2025 to $326,818 in 2026.
  • Appraised value per square footThe current public record shows about $213 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $173,424 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the Central Northwest neighborhood and ZIP 77018.
  • Neighborhood value signalAmong 81 residential records in the same neighborhood, the average appraised value is about $366 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +7.9% on average.

Comparable assessments

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

  • 933 Oak St, Houston, TX 77018
    1,487 sqft | $303/sqft | built 1938 | Similar size (1,487 vs 1,536 sqft); Similar lot size (9,180 vs 9,720 sqft); Same quality (Low)
    $450,477
  • 710 Curtin St, Houston, TX 77018
    1,400 sqft | $246/sqft | built 1938 | 9% smaller (1,400 vs 1,536 sqft); Similar lot size (9,840 vs 9,720 sqft); Same quality (Low)
    $344,422
  • 908 Martin St, Houston, TX 77018
    1,626 sqft | $244/sqft | built 1950 | 6% larger (1,626 vs 1,536 sqft); Similar age (1950 vs 1945); Similar lot size (9,180 vs 9,720 sqft)
    $397,012
  • 727 Oak St, Houston, TX 77018
    1,388 sqft | $294/sqft | built 1950 | 10% smaller (1,388 vs 1,536 sqft); Similar age (1950 vs 1945); Similar lot size (9,000 vs 9,720 sqft)
    $408,666
  • 723 Oak St, Houston, TX 77018
    1,494 sqft | $314/sqft | built 1950 | Similar size (1,494 vs 1,536 sqft); Similar age (1950 vs 1945); Lot 19% larger (11,526 vs 9,720 sqft)
    $469,205

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.

  • 1738 Lamonte Ln Ln, Houston, TX 77018
    September-1-2026 | 1,440 sqft | $354/sqft | built 1950 | 6% size difference (1,440 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $510,000
  • 1601 Saxon Dr, Houston, TX 77018
    August-5-2026 | 1,511 sqft | $397/sqft | built 1949 | Similar size (1,511 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $600,000
  • 1007 W 30th St, Houston, TX 77018
    September-11-2026 | 1,484 sqft | $201/sqft | built 1955 | Similar size (1,484 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $299,000
  • 1249 Du Barry Ln, Houston, TX 77018
    July-15-2026 | 1,660 sqft | $392/sqft | built 1946 | 8% size difference (1,660 sqft); Similar age (1946); Sold after the valuation date
    $650,000
  • 2106 Saxon Dr, Houston, TX 77018
    September-2-2026 | 1,619 sqft | $355/sqft | built 1953 | 5% size difference (1,619 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $575,000

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.