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 33051 are overassessed?

36.5% of homes in Key Colony Beach ZIP 33051 (516 of 1,413 parcels) are assessed more than 10% above the typical per-square-foot value for the neighborhood, based on the FL DOR 2025 Final NAL roll.

How do I appeal my property taxes in Key Colony Beach ZIP 33051?

File Form DR-486 with the Monroe County Value Adjustment Board within 25 days of your TRIM notice (typically mid-August). The $15 filing fee is paid to the Clerk of Court. Strong petitions include 3-5 comparable sales from your immediate area.

Monroe County · Key Colony Beach

ZIP 33051 property tax overassessment report

36.5% of homes in Key Colony Beach ZIP 33051 (516 of 1,413 parcels) are assessed more than 10% above what comparable-size homes in the same ZIP typically pay per square foot. Combined annual overpayment: $1,515,987.

Check your address →Monroe County guide

1,413

Homes in ZIP

516

Flagged as overassessed

36.5%

$341,623

Avg overage / home

$961,236

Typical value

~$606/sqft

Your Monroe County deadline

TRIM mailing: Aug 21, 2026 · VAB petition due: Sept 15, 2026

Monroe filing guide →

Top 25 most overassessed homes in 33051

Addresses anonymized. Pulled directly from the FL DOR 2025 Final NAL roll. Each home pays significantly more than what a comparable-size home in this ZIP typically pays.

Address	Sq ft	Year	Just value	Expected	Overage	% over	$/yr
5XX 4TH St	2,124	2021	$4,140,165	$1,287,144	$2,853,021	221.7%	$24,536
1XXX COURY Dr	4,191	2014	$4,974,337	$2,539,746	$2,434,591	95.9%	$20,937
3XX 13TH St	4,235	2004	$4,996,424	$2,566,410	$2,430,014	94.7%	$20,898
5XX 4TH St	3,076	2018	$3,773,307	$1,864,056	$1,909,251	102.4%	$16,420
1XXX COURY Dr	5,006	2020	$4,861,751	$3,033,636	$1,828,115	60.3%	$15,722
2XX 15TH Cir	4,888	1993	$4,780,416	$2,962,128	$1,818,288	61.4%	$15,637
1XXX COURY Dr	2,648	2000	$3,381,538	$1,604,688	$1,776,850	110.7%	$15,281
1XXX COURY Dr OCEAN	4,630	2006	$4,561,172	$2,805,780	$1,755,392	62.6%	$15,096
3XX 14TH St	2,814	1993	$3,426,141	$1,705,284	$1,720,857	100.9%	$14,799
3XX 14TH St	2,160	1993	$3,019,050	$1,308,960	$1,710,090	130.6%	$14,707
4XX 2ND St	3,626	1997	$3,756,918	$2,197,356	$1,559,562	71%	$13,412
7XX 11TH St	1,913	2019	$2,558,312	$1,159,278	$1,399,034	120.7%	$12,032
1XX 15TH Cir	4,066	1998	$3,861,409	$2,463,996	$1,397,413	56.7%	$12,018
5XX 3RD St	2,982	1993	$3,144,860	$1,807,092	$1,337,768	74%	$11,505
8XX 12TH St	2,024	1973	$2,483,453	$1,226,544	$1,256,909	102.5%	$10,809
2XX 14TH St	1,641	2014	$2,213,371	$994,446	$1,218,925	122.6%	$10,483
2XX 15TH Cir	3,353	2000	$3,238,749	$2,031,918	$1,206,831	59.4%	$10,379
1XXX COURY Dr	3,787	2000	$3,491,661	$2,294,922	$1,196,739	52.1%	$10,292
2XX 15TH Cir	4,589	2000	$3,911,486	$2,780,934	$1,130,552	40.7%	$9,723
2XX 15TH Cir	6,420	2023	$4,992,397	$3,890,520	$1,101,877	28.3%	$9,476
1XX 12TH St	4,536	2006	$3,803,447	$2,748,816	$1,054,631	38.4%	$9,070
2XX 14TH St	3,545	2021	$3,137,212	$2,148,270	$988,942	46%	$8,505
3XX 1ST St	1,433	1966	$1,848,613	$868,398	$980,215	112.9%	$8,430
2XX 12TH St	2,422	1979	$2,438,687	$1,467,732	$970,955	66.2%	$8,350
7XX 9TH St	2,600	1977	$2,543,723	$1,575,600	$968,123	61.4%	$8,326

Data: FL DOR 2025 Final NAL roll, Monroe County, ZIP 33051. Addresses anonymized to protect privacy; full data is public record under Fla. Stat. Ch. 119. Showing top 25 — there are likely more overassessed homes in this ZIP.

Is yours one of them?

Search your address — we'll show your specific overassessment estimate in 30 seconds. Then when MonroeCounty's TRIM notice mails this August, you'll have a $49 DR-486 packet ready to file with the VAB.

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