Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 904 Sunset Dr, Pasadena, TX 77506

HCAD #0741750150015
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🌍Environmental Assessment

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊Flood Risk Analysis
FEMA Zone X
Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address
904 Sunset Dr, Pasadena, TX 77506
Building Size
1,400sqft
Total structure area from HCAD building records.
Elevation
26.66 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very High
Property flooded at 9.84ft depth.
Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating
Very High
Flood Depth
9.84 ft±0.5 ft
Depth of water above ground level.
Water Surface Elevation (WSE)
36.51 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
294.9 acres
100.0% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$50,900
Based on HCAD building value of $78,308.
Depth-Damage (Neighborhood)
$54,736
Based on neighborhood replacement cost.
Analysis Method
COG Combined 5000 Model
Raster-based flood inundation query
Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

Property Would Be Flooded
Flood Depth: 9.84 feet
Severity
Severe
Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool
Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

#1
Minimal flood hazard area - property outside mapped high-risk zones
#2
Flood insurance available at preferred rates - over 25% of claims occur in low-risk areas
#3
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#4
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
11.1th percentile
Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
6.09 millionlbs
Extremely High
933.8x more than typical Houston property
≈ 305 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
6.09 millionlbs
Extremely High
1262.6x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
3 thousandlbs
Very High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
8
Industrial facilities within 2 miles
💡
Why It Matters: High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.
Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)6,092,087 lbs6,088,764 lbs3,324 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)347,628 lbs346,926 lbs218 lbs
How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted
9.9%
10-19th
10.1%
20-29th
9.9%
30-39th
10.1%
40-49th
9.7%
50-59th
10.2%
60-69th
6%
70-79th
5.8%
80-89th
4.3%
90-100thLowest Pollution
34.2%
Higher pollution than 89% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile.
📋
Top chemicals released near this property (past 10 years):
Propylene, n-Hexane, Hydrogen cyanide, Ammonia, Xylene (mixed isomers)
View the full list of 36 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(36 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Propylene115-07-11,208,542 lbs0 lbs1,208,542 lbs
2n-Hexane110-54-31,041,204 lbs0 lbs1,041,623 lbs
3Hydrogen cyanide74-90-81,032,286 lbs0 lbs1,032,286 lbs
4Ammonia7664-41-7654,067 lbs0 lbs654,067 lbs
5Xylene (mixed isomers)1330-20-7392,004 lbs723 lbs395,087 lbs
6Ethylene74-85-1370,774 lbs0 lbs370,774 lbs
7Benzene71-43-2280,782 lbs477 lbs281,823 lbs
8Toluene108-88-3276,239 lbs260 lbs277,380 lbs
9Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9250,113 lbs0 lbs250,113 lbs
10Hydrogen sulfide7783-06-4244,215 lbs0 lbs244,216 lbs
11Diethanolamine111-42-2102,160 lbs0 lbs102,160 lbs
12Cyclohexane110-82-766,577 lbs0 lbs67,345 lbs
13Ethylbenzene100-41-460,168 lbs102 lbs60,870 lbs
141,3-Butadiene106-99-050,685 lbs0 lbs50,685 lbs
15Naphthalene91-20-320,014 lbs75 lbs21,419 lbs
161,2,4-Trimethylbenzene95-63-611,040 lbs0 lbs11,314 lbs
17Cumene98-82-88,769 lbs0 lbs8,953 lbs
18Biphenyl92-52-45,161 lbs0 lbs5,502 lbs
19Ethylene glycol107-21-15,255 lbs0 lbs5,264 lbs
20Polycyclic aromatic compoundsN5902,887 lbs525 lbs3,613 lbs
21Methanol67-56-13,468 lbs0 lbs3,468 lbs
22Styrene100-42-51,319 lbs0 lbs1,319 lbs
23Phenol108-95-20 lbs1,155 lbs1,155 lbs
24Hydrogen fluoride7664-39-3229 lbs0 lbs299 lbs
25Chlorine7782-50-5268 lbs0 lbs268 lbs
26Nickel7440-02-0120 lbs0 lbs120 lbs
27Mercury7439-97-6106 lbs0 lbs106 lbs
28Certain glycol ethersN23080 lbs0 lbs80 lbs
29Manganese7439-96-570 lbs0 lbs70 lbs
30Isoprene78-79-560 lbs0 lbs60 lbs
31C.I. Food Red 1581-88-940 lbs0 lbs40 lbs
32Chromium7440-47-340 lbs0 lbs40 lbs
33Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
34Benzo[g,h,i]perylene191-24-23 lbs7 lbs11 lbs
35Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
36Lead compoundsN4201 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, Hydrogen cyanide, n-Hexane, Propylene, Xylene (mixed isomers)
View the full list of 30 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(30 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-775,153 lbs0 lbs75,153 lbs
2Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
3n-Hexane110-54-338,376 lbs0 lbs38,409 lbs
4Propylene115-07-134,344 lbs0 lbs34,344 lbs
5Xylene (mixed isomers)1330-20-731,993 lbs20 lbs32,225 lbs
6Toluene108-88-319,329 lbs6 lbs19,353 lbs
7Benzene71-43-218,893 lbs112 lbs19,018 lbs
8Ethylene74-85-117,246 lbs0 lbs17,246 lbs
9Hydrogen sulfide7783-06-414,345 lbs0 lbs14,345 lbs
10Diethanolamine111-42-210,092 lbs0 lbs10,092 lbs
11Cyclohexane110-82-74,171 lbs0 lbs4,189 lbs
12Ethylbenzene100-41-43,987 lbs5 lbs4,025 lbs
131,2,4-Trimethylbenzene95-63-61,267 lbs0 lbs1,405 lbs
14Naphthalene91-20-31,359 lbs7 lbs1,384 lbs
151,3-Butadiene106-99-0984 lbs0 lbs984 lbs
16Cumene98-82-8531 lbs0 lbs532 lbs
17Ethylene glycol107-21-1500 lbs0 lbs500 lbs
18Polycyclic aromatic compoundsN590354 lbs55 lbs409 lbs
19Styrene100-42-5110 lbs0 lbs110 lbs
20Biphenyl92-52-433 lbs0 lbs33 lbs
21Manganese7439-96-530 lbs0 lbs30 lbs
22Chlorine7782-50-525 lbs0 lbs25 lbs
23Chromium7440-47-325 lbs0 lbs25 lbs
24Nickel7440-02-024 lbs0 lbs24 lbs
25Certain glycol ethersN23010 lbs0 lbs10 lbs
26Isoprene78-79-58 lbs0 lbs8 lbs
27Phenol108-95-20 lbs8 lbs8 lbs
28Mercury7439-97-67 lbs0 lbs7 lbs
29Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
30Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
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