Castlerock & Grand Valley area, Houston 77090

CAD Neighborhood 2232.02

Property tax protest data for the Castlerock & Grand Valley area, Houston 77090 (Neighborhood 2232.02) in Harris County. 53 homes, $140/sqft median.

Strong protest signal
95% success rate · $44,806 avg savings · 53 homes analyzed
What protesters saved
$44,806
5.7% median reduction
Protest success rate
95%
Based on 20 hearings
Homes analyzed
53
Median assessment
$140/sqft
Avg: $146/sqft

Source: HCAD public records, 2024 protest season

What this means for your property

53 homes in this area were assessed at a median $140/sqft. With a 95% protest success rate, most homeowners who challenged their assessment received a reduction. If your home is assessed higher than comparable properties, you likely have grounds to protest. An evidence packet shows exactly how your assessment compares — with the specific comps and data you'd present at a hearing.

What's in the evidence packet?

5 comparable properties matched to your home, an assessment gap analysis showing where your value exceeds comps, a filing checklist for HCAD, and a hearing script you can read at your informal hearing.

How does the protest process work?

You file a protest with HCAD (online via iFile), attend an informal hearing where you present your evidence, and most cases settle right there. The evidence packet gives you everything you need for that hearing.

What's the deadline?

The protest deadline for Harris County is May 15. You must file before this date to protest your 2026 assessment.

Check your property

See how your home compares to 53 others in Castlerock & Grand Valley area, Houston 77090

$49 flat fee · No recurring fees — you keep 100% · 7-day money-back guarantee

📅 Deadline: May 15, 2026 (40 days left) Full refund if unused 🔒 Secure checkout 🛡 No risk — filing can’t raise your taxes

What's in your evidence packet

5 comparable properties matched to your home
Assessment gap analysis with dollar amounts
Harris County filing checklist
Hearing script you can read word-for-word
Comparable sales grid (PDF)
Step-by-step iFile walkthrough
In Harris County, 516,654 property owners protested last year. 89% received a reduction.

Compare similar neighborhoods in Harris County

Neighborhood Homes Median $/Sq Ft Win Rate
Woodridge Manor & Woodridge Row area, Houston 77087 70 $140 same 57%
Landon Light & Pelican Bay area, Houston 77038 167 $140 same 97%
Cedar & Bayou View area, Seabrook 77586 456 $140 same 97%
Torry Pines & Penn Hills area, Houston 77062 431 $140 same 93%
Cedarcrest & Longwood area, Pasadena 77503 1,259 $140 same 86%

Neighborhoods with the closest median $/sq ft to Castlerock & Grand Valley area, Houston 77090.

Top flagged properties in Castlerock & Grand Valley area, Houston 77090

Address % Above $/Sqft Est. Savings
1822 ELK RIVER DR 69% $236 $5,910
17907 ELK VALLEY CIR 52% $213 $12,940
1802 CASTLEROCK RD 48% $208 $11,840
17810 SUGAR PINE DR 43% $201 $4,309
17902 ELK VALLEY CIR 34% $188 $5,593

Properties assessed highest above the neighborhood median.