Harris Value property tax analysis
17811 Theiss Mail Route Rd, Spring, TX 77379
2,774 sqft, built 1973, in Memorial Northwest Appraised at $383,825 for 2026.
Harris County account 1071540000002
Appraised value
$383,825
Tax year 2026
Living area
2,774 sqft
$138 per sqft
Homestead
Yes
Owner-occupied exemption on file
Why this page matters for a protest
A strong tax protest page needs the county value, property facts, and enough context to compare this home with similar properties nearby. This page gives homeowners a starting point before reviewing comparable homes and prior-year changes.
The county value changed +10.0% from $348,932 in 2025 to $383,825 in 2026.
Public valuation context
Harris Value uses public HCAD records to frame the first pass at whether this property deserves a closer protest review.
- Value movementThe appraised value increased +10.0% from $348,932 in 2025 to $383,825 in 2026.
- Appraised value per square footThe current public record shows about $138 per square foot before any comparable-property adjustments.
- Market versus appraised valueThe county market value is $865 above the appraised value used on this page.
- Local comparison areaThis page starts the equity review with public records for the Memorial Northwest neighborhood and ZIP 77379.
- Neighborhood value signalAmong 400 residential records in the same neighborhood, the average appraised value is about $116 per square foot.
- Neighborhood year-over-year signalNearby residential records with prior-year values moved about +2.0% on average.
- Protest timingIn this market, deadline is usually May 15 (or 30 days after your notice of appraised value is mailed, whichever is later) and evidence is reviewed by the Appraisal Review Board (ARB).