2,856 single-family homes in Dallas County, compared with their most similar neighbors.
Updated October 12, 2026. Source: Dallas Central Appraisal District, 2026 data. Methodology
single-family homes compared
2,856
valued above similar homes nearby
49%
look worth protesting in 2026
77%
of decided 2026 protests got a reduction
74%
49% of Sunnyvale homes are valued above similar homes nearby
We compared each of 2,856 single-family homes with its most similar neighbors (same neighborhood and quality, similar size and age). 49% have a house value above the median of those homes: together, $34 million of house value above them. Texas lets you protest a value that is above the median of comparable homes.
38% of Sunnyvale homeowners protested in 2026, and 74% of decided protests got a reduction
Of 2,856 Sunnyvale homeowners in our data, 1,085 protested their 2026 value; 802 of 1,079 decided protests lowered it, typically by $22,075 (3.2% of the value).
Sunnyvale homeowners who protested on their own got bigger reductions than those who hired an agent: $34,720 vs. $20,640
The typical winning protest cut the value by 4.8% on your own vs. 3% with an agent.
On your own
$34,720
typical value cut among wins (4.8%)
Decided protests won
59%
Cost
$0–50
Off the yearly tax bill
about $503, all yours
With a paid agent
$20,640
typical value cut among wins (3%)
Decided protests won
78%
Cost
25–40% of the tax saved
Off the yearly tax bill
about $299, minus $75–$120 to the agent
Source: the Dallas Central Appraisal District, 2026 protests. Tax figures at a typical 1.5% effective tax rate. Agent or do it yourself? · Methodology
An agent keeps 25–40% of what you save. Doing it yourself costs $0–50.
At a typical 1.5% Texas tax rate, the typical win on your own takes about $503 a year off the tax bill, and you keep all of it. The typical agent win takes off about $299, and the agent keeps about $75–$120 of that. Filing is free, online or by mail, and there's no agent contract to renew or cancel each year.
793 Sunnyvale homes valued above similar homes weren't protested
Their house values were above the median of the most similar neighbors, the comparison Texas law allows a protest on, but their owners didn't protest in 2026.
The typical Texas home pays about $7,106 a year in property tax
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.)
15% of Sunnyvale homes have no homestead exemption on file
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).
"Above similar homes": share of homes whose house value is above the median of their most similar neighbors. "Worth protesting": homes we rate Yes or Maybe. "Won": share of decided protests that lowered the value.
Appraisal neighborhoods, named after their most common subdivision. Homes counted here are the ones in Sunnyvale.
Streets where most homes are valued above similar homes
Street
Homes
Above similar homes
Median gap
LOST CREEK DR
10
80%
+3.1%
EAGLES CREST DR
19
79%
+2.9%
SUNCREST WAY
11
73%
+1.1%
WINDRIDGE DR
10
70%
+0.8%
ROCKSHIRE DR
16
69%
+2.1%
AUBURN HILLS DR
15
67%
+1.3%
HEARTHSTONE DR
32
65%
+1.4%
RAIN TREE DR
33
64%
+0.9%
MITCHELL DR
11
64%
+0.6%
STARDUST LN
11
64%
+0.1%
Streets with at least 10 homes we could compare. "Median gap": how far the street's typical house value is from its comparables' median.
How to protest
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.
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.