What is a property tax appeal?

A property tax appeal (also called a protest) is a formal process where you challenge your county appraisal district's assessed value of your home. In Texas, you file a protest with your county's Appraisal Review Board (ARB), present evidence that your home is overvalued, and the ARB issues a ruling.

What's the deadline to file a property tax protest in Texas?

In Texas, the deadline to file a property tax protest is May 15, 2026 (or 30 days after your appraisal notice is mailed, whichever is later). There are no extensions.

How much can I save by appealing my property taxes?

Texas homeowners who appeal save an average of $774 per year. Success rates range from 80-91% when homeowners bring comparable sales evidence.

What percent of homes in ZIP 77523 are overassessed?

37.6% of homes in Baytown ZIP 77523 (138 of 367 parcels) are assessed more than 10% above the typical per-square-foot value for the neighborhood, based on HCAD public records.

How do I protest my property taxes in Baytown ZIP 77523?

File a Notice of Protest with HCAD by May 15 each year. HCAD accepts iFile online protests. Most cases settle informally if you bring strong comparable-sale evidence. 2026 deadline has passed — next protest window is April-May 2027.

Harris County · Baytown

ZIP 77523 property tax overassessment report

37.6% of homes in Baytown ZIP 77523 (138 of 367 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $184,742.

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367

Homes in ZIP

138

Flagged as overassessed

37.6%

$62,266

Avg overage / home

$241,993

Typical value

~$130/sqft

Harris County · 2026 protest window closed

Next: HCAD 2027 values mail late March-April. Protest deadline: May 15, 2027.

Harris County guide →

Top 25 most overassessed homes in 77523

Addresses anonymized. Pulled directly from HCAD public records. Each home pays significantly more than what a comparable-size home in this ZIP typically pays.

Address	Sq ft	Year	Market val	Expected	Overage	% over	$/yr
2XXX BAY OAKS HARBOR DR	1,517	1996	$590,438	$197,210	$393,228	199.4%	$9,084
2XXX BAY OAKS HARBOR DR	1,930	1990	$632,492	$250,900	$381,592	152.1%	$8,815
3XXX BAY OAKS HARBOR DR	704	1992	$434,946	$91,520	$343,426	375.2%	$7,933
4XXX TRI CITY BEACH RD	2,019	1996	$478,763	$262,470	$216,293	82.4%	$4,996
2XXX BAY OAKS HARBOR DR	1,120	1995	$361,199	$145,600	$215,599	148.1%	$4,980
3XXX TRI CITY BEACH RD	988	1975	$310,987	$128,440	$182,547	142.1%	$4,217
3XXX BAY OAKS HARBOR DR	896	1997	$286,496	$116,480	$170,016	146%	$3,927
3XXX TRI CITY BEACH RD	4,170	1997	$696,972	$542,100	$154,872	28.6%	$3,578
3XXX ANGELFISH COVE	2,148	2008	$409,203	$279,240	$129,963	46.5%	$3,002
3XXX TRI CITY BEACH RD	1,151	2016	$260,000	$149,630	$110,370	73.8%	$2,550
2XXX BAY OAKS HARBOR DR	2,560	2008	$439,300	$332,800	$106,500	32%	$2,460
3XXX BAY OAKS HARBOR DR	1,694	2004	$322,011	$220,220	$101,791	46.2%	$2,351
2XXX BAY OAKS HARBOR DR	1,344	1984	$269,869	$174,720	$95,149	54.5%	$2,198
3XXX BAY OAKS HARBOR DR	1,494	2000	$284,080	$194,220	$89,860	46.3%	$2,076
1XXX ASHBEL TRL	1,410	2020	$269,505	$183,300	$86,205	47%	$1,991
2XXX BAY OAKS HARBOR DR	1,498	2013	$274,616	$194,740	$79,876	41%	$1,845
1XXX WILLIAM SCOTT ST	2,039	2021	$336,075	$265,070	$71,005	26.8%	$1,640
2XXX BAY OAKS HARBOR DR	1,800	1999	$303,959	$234,000	$69,959	29.9%	$1,616
2XXX BAY HILL DR	2,185	2017	$352,597	$284,050	$68,547	24.1%	$1,583
1XXX PLANTATION PL	2,080	2022	$336,635	$270,400	$66,235	24.5%	$1,530
3XXX TRI CITY BEACH RD	3,699	1957	$546,624	$480,870	$65,754	13.7%	$1,519
2XXX BAY HILL DR	1,567	2017	$267,734	$203,710	$64,024	31.4%	$1,479
1XXX PLANTATION PL	1,552	2021	$265,283	$201,760	$63,523	31.5%	$1,467
1XXX PLANTATION PL	1,552	2021	$265,283	$201,760	$63,523	31.5%	$1,467
1XXX WILLIAM SCOTT ST	1,898	2019	$309,394	$246,740	$62,654	25.4%	$1,447

Data: HCAD public records, Harris County, ZIP 77523. Addresses anonymized to protect privacy; full data is public record under Texas Public Information Act. Showing top 25 — there are likely more overassessed homes in this ZIP.

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