49 homes in Sunnyvale, Dallas County (appraisal neighborhood 3YSM08), compared with their most similar neighbors.
Of 49 John Denton Abst 397 Pg homeowners in our data, 19 protested their 2026 value; 14 of 19 decided protests lowered it, typically by $25,220 (2.9% of the value).
Filing is free, online or by mail, and there's no agent contract to renew or cancel each year.
Median change in appraised market value from last year.
Our estimate from 2026 published tax rates and each home's exemptions: 1.5% of market value. (The Dallas Central Appraisal District doesn't publish tax rates with its data, so this uses our Texas data.)
Usually a rental or second home. If it's your own home, a homestead exemption takes $140,000 off its school taxable value and caps yearly increases in taxable value at 10%; you apply with your appraisal district (Form 50-114).
Free, in about 10 seconds: how your home compares with similar homes nearby.
| Single-family homes | 49 |
|---|---|
| Median market value | $868,330 |
| Median change from last year | +0% |
| Median value per sq ft | $234 |
| Median living area | 3,441 sq ft |
| Median year built | 1995 |
| Homes with a pool | 45% |
| Homestead exemption on file | 86% |
| Homes with a paid protest agent | 39% |
The protest deadline is May 15, or 30 days after your appraisal notice was mailed, whichever is later. Check the date on your notice. New to this? Read how to protest.
Have a specific Texas address? Check it at taxprotesting.com/check?address=1234 Main St, Plano, TX with your own street address, or use the search box.
Based on 2026 appraisal values and protest outcomes from the Dallas Central Appraisal District. Estimates, not promises: every protest is decided on its own evidence.