Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 401 Winkler Dr, Houston, TX 77087

HCAD #0410300000363
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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
401 Winkler Dr, Houston, TX 77087
Elevation
32.39 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)
42.23 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
249.1 acres
84.5% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$98,902
Vacant lot (no building data).
Depth-Damage (Neighborhood)
$0
Vacant lot (no building data).
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
19.1th percentile
Property Pollution Ranking
High
Higher pollution than 81% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
1.05 millionlbs
Extremely High
161.2x more than typical Houston property
≈ 53 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
1.01 millionlbs
Extremely High
209.0x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
43 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
5
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)1,051,416 lbs1,007,960 lbs43,456 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)64,222 lbs49,662 lbs14,560 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 81% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 20-29th percentile.
📋
Top chemicals released near this property (past 10 years):
Ammonia, Methyl tert-butyl ether, 1,3-Butadiene, Methanol, Xylene (mixed isomers)
View the full list of 24 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(24 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Ammonia7664-41-7279,379 lbs3,674 lbs283,053 lbs
2Methyl tert-butyl ether1634-04-4267,534 lbs0 lbs267,534 lbs
31,3-Butadiene106-99-0255,578 lbs0 lbs255,578 lbs
4Methanol67-56-155,467 lbs39,325 lbs94,793 lbs
5Xylene (mixed isomers)1330-20-755,047 lbs0 lbs55,047 lbs
6N-Methyl-2-pyrrolidone872-50-437,616 lbs0 lbs37,616 lbs
7N,N-Dimethylformamide68-12-222,161 lbs88 lbs22,249 lbs
8tert-Butyl alcohol75-65-015,263 lbs0 lbs15,263 lbs
9Propylene115-07-114,205 lbs0 lbs14,205 lbs
10Ethylene74-85-12,621 lbs0 lbs2,621 lbs
11Certain glycol ethersN2301,884 lbs0 lbs1,884 lbs
12Manganese7439-96-5500 lbs251 lbs751 lbs
13Chromium compounds (except for chromite ore mined in the Transvaal Region)N090323 lbs0 lbs323 lbs
14Lead7439-92-180 lbs117 lbs197 lbs
15Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N090165 lbs0 lbs165 lbs
16Boron trifluoride7637-07-246 lbs0 lbs46 lbs
17Zinc compoundsN98238 lbs0 lbs38 lbs
18Nitric acid7697-37-224 lbs0 lbs24 lbs
19Hydrogen fluoride7664-39-312 lbs0 lbs12 lbs
20Nickel compoundsN4958 lbs0 lbs8 lbs
21Cyanide compoundsN1064 lbs0 lbs4 lbs
22Copper compoundsN1002 lbs0 lbs2 lbs
23Nickel And Nickel CompoundsN4952 lbs0 lbs2 lbs
24Manganese And Manganese CompoundsN4501 lbs0 lbs1 lbs
📋
Top chemicals released near this property (2024 only):
Methanol, Methyl tert-butyl ether, 1,3-Butadiene, N-Methyl-2-pyrrolidone, N,N-Dimethylformamide
View the full list of 15 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(15 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-16,850 lbs14,541 lbs21,391 lbs
2Methyl tert-butyl ether1634-04-418,336 lbs0 lbs18,336 lbs
31,3-Butadiene106-99-018,236 lbs0 lbs18,236 lbs
4N-Methyl-2-pyrrolidone872-50-42,081 lbs0 lbs2,081 lbs
5N,N-Dimethylformamide68-12-21,641 lbs0 lbs1,641 lbs
6Propylene115-07-11,091 lbs0 lbs1,091 lbs
7tert-Butyl alcohol75-65-01,021 lbs0 lbs1,021 lbs
8Ethylene74-85-1364 lbs0 lbs364 lbs
9Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N09027 lbs0 lbs27 lbs
10Lead7439-92-15 lbs19 lbs25 lbs
11Zinc compoundsN9823 lbs0 lbs3 lbs
12Nitric acid7697-37-23 lbs0 lbs3 lbs
13Boron trifluoride7637-07-21 lbs0 lbs1 lbs
14Nickel compoundsN4951 lbs0 lbs1 lbs
15Cyanide compoundsN1061 lbs0 lbs1 lbs
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