Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 917 Normandy St, Houston, TX 77015

HCAD #0642250090001
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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 AE
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
917 Normandy St, Houston, TX 77015
Elevation
18.06 ft
Height above sea level from USGS data.
FEMA Flood Zone
AE
High Risk - 1% annual chance with established base flood elevation
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)
27.90 ft
Water surface elevation relative to sea level (NAVD88 datum).
Area Inundated
212.8 acres
72.2% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
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
Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages
#2
Obtain an Elevation Certificate to determine accurate flood insurance premiums
#3
Property elevation currently above simulated flood level
#4
Maintain flood insurance coverage as required in Special Flood Hazard Areas
#5
Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries
#6
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information
🏭Industrial Pollution Exposure
27.8th percentile
Property Pollution Ranking
Moderate
Higher pollution than 72% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
309 thousandlbs
High
47.3x more than typical Houston property
≈ 15 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
290 thousandlbs
Very High
60.2x more than typical Houston property
Includes fugitive emissions (leaks) and stack emissions (smokestacks).
Water Pollution (10 Years)
18 thousandlbs
Extremely High
Discharges to bayous, streams, and drainage systems.
Facilities Nearby
11
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)308,662 lbs290,182 lbs18,481 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)31,743 lbs20,927 lbs1,261 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 72% 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):
m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Phenol
View the full list of 37 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(37 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1m-Cresol108-39-445,935 lbs6,586 lbs5,666,444 lbs
22,4-Dimethylphenol105-67-913,055 lbs965 lbs4,229,319 lbs
3p-Cresol106-44-538,298 lbs3,292 lbs3,009,676 lbs
4o-Cresol95-48-725,461 lbs1,579 lbs1,765,196 lbs
5Phenol108-95-217,879 lbs3,104 lbs1,051,635 lbs
6Styrene100-42-559,223 lbs0 lbs59,223 lbs
7Xylene (mixed isomers)1330-20-721,357 lbs0 lbs21,357 lbs
8Toluene108-88-313,120 lbs0 lbs13,696 lbs
9n-Hexane110-54-312,725 lbs0 lbs12,725 lbs
10Ethylbenzene100-41-410,531 lbs0 lbs10,531 lbs
11Methanol67-56-16,541 lbs0 lbs6,541 lbs
12Benzene71-43-26,362 lbs0 lbs6,362 lbs
13Ammonia7664-41-73,125 lbs0 lbs3,125 lbs
14Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7647-01-03,066 lbs0 lbs3,066 lbs
15Manganese7439-96-51,668 lbs543 lbs2,211 lbs
16Chromium7440-47-31,182 lbs925 lbs2,106 lbs
17Nickel7440-02-01,350 lbs544 lbs1,894 lbs
18Cyclohexane110-82-71,732 lbs0 lbs1,732 lbs
19Chlorine7782-50-51,412 lbs0 lbs1,412 lbs
20Manganese compoundsN450990 lbs262 lbs1,252 lbs
21Formic acid64-18-61,012 lbs0 lbs1,012 lbs
22Certain glycol ethersN230903 lbs0 lbs903 lbs
231,2,4-Trimethylbenzene95-63-6863 lbs0 lbs863 lbs
24Chromium compounds (except for chromite ore mined in the Transvaal Region)N090410 lbs417 lbs828 lbs
25Nickel compoundsN495443 lbs250 lbs694 lbs
26Ethylene glycol107-21-1398 lbs0 lbs398 lbs
27Cobalt7440-48-4250 lbs0 lbs250 lbs
28Copper7440-50-8250 lbs0 lbs250 lbs
29Aluminum (fume or dust)7429-90-5250 lbs0 lbs250 lbs
30Phthalic anhydride85-44-9184 lbs0 lbs184 lbs
31Maleic anhydride108-31-6139 lbs0 lbs139 lbs
32Naphthalene91-20-329 lbs0 lbs29 lbs
33Nitric acid7697-37-228 lbs0 lbs28 lbs
34Nonylphenol EthoxylatesN53510 lbs0 lbs10 lbs
35Lead And Lead CompoundsN4200 lbs7 lbs7 lbs
36Lead compoundsN4200 lbs6 lbs7 lbs
37Mercury7439-97-60 lbs0 lbs2 lbs
📋
Top chemicals released near this property (2024 only):
m-Cresol, 2,4-Dimethylphenol, p-Cresol, o-Cresol, Phenol
View the full list of 14 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(14 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1m-Cresol108-39-45,580 lbs416 lbs7,579 lbs
22,4-Dimethylphenol105-67-91,591 lbs64 lbs7,241 lbs
3p-Cresol106-44-54,895 lbs208 lbs5,894 lbs
4o-Cresol95-48-73,192 lbs103 lbs3,937 lbs
5Phenol108-95-22,525 lbs151 lbs3,053 lbs
6Methanol67-56-11,343 lbs0 lbs1,343 lbs
7Toluene108-88-3314 lbs0 lbs890 lbs
8Cyclohexane110-82-7759 lbs0 lbs759 lbs
9Manganese7439-96-5162 lbs86 lbs248 lbs
10Chromium7440-47-371 lbs144 lbs215 lbs
11Certain glycol ethersN230214 lbs0 lbs214 lbs
12Nickel7440-02-0108 lbs86 lbs194 lbs
13Formic acid64-18-6173 lbs0 lbs173 lbs
14Lead compoundsN4200 lbs3 lbs3 lbs
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