Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 5746 Allendale Rd, Houston, TX 77017

HCAD #0772600190020
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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
5746 Allendale Rd, Houston, TX 77017
Building Size
1,222sqft
Total structure area from HCAD building records.
Elevation
28.91 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
Risk based on FEMA zone and simulation.
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 Low
Flood Depth
0 ft±0.5 ft
No flooding at current water level.
Water Surface Elevation (WSE)
N/A
Water surface elevation data not available.
Area Inundated
81.2 acres
27.5% of 500m radius flooded.
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage (HCAD Valuation)
$0
Property not flooded. No damage to calculate.
Depth-Damage (Neighborhood)
$0
Property not flooded. No damage to calculate.
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 Safe
Safety Margin: 0 feet
Severity
Safe
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
14.5th percentile
Property Pollution Ranking
High
Higher pollution than 86% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
2.64 millionlbs
Extremely High
404.5x more than typical Houston property
≈ 132 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
2.64 millionlbs
Extremely High
546.8x 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
6
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)2,639,177 lbs2,636,653 lbs2,523 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)218,322 lbs218,279 lbs43 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 86% 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):
Hydrogen cyanide, n-Hexane, Toluene, Xylene (mixed isomers), Hydrogen sulfide
View the full list of 29 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(29 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Hydrogen cyanide74-90-8818,552 lbs0 lbs818,552 lbs
2n-Hexane110-54-3378,253 lbs0 lbs378,260 lbs
3Toluene108-88-3226,464 lbs175 lbs226,663 lbs
4Xylene (mixed isomers)1330-20-7224,339 lbs627 lbs224,996 lbs
5Hydrogen sulfide7783-06-4206,443 lbs0 lbs206,443 lbs
6Propylene115-07-1193,971 lbs0 lbs193,971 lbs
7Benzene71-43-2186,342 lbs94 lbs186,447 lbs
8Ethylene74-85-1127,617 lbs0 lbs127,617 lbs
9Diethanolamine111-42-2101,560 lbs0 lbs101,560 lbs
10Cyclohexane110-82-752,501 lbs0 lbs52,510 lbs
11Ammonia7664-41-735,600 lbs0 lbs35,600 lbs
12Ethylbenzene100-41-427,097 lbs4 lbs27,109 lbs
13N-Methyl-2-pyrrolidone872-50-417,750 lbs0 lbs17,750 lbs
141,3-Butadiene106-99-016,921 lbs0 lbs16,921 lbs
15Naphthalene91-20-34,537 lbs3 lbs4,548 lbs
16Nitric acid7697-37-24,015 lbs0 lbs4,015 lbs
17Polycyclic aromatic compoundsN5902,946 lbs116 lbs3,340 lbs
181,2,4-Trimethylbenzene95-63-63,058 lbs0 lbs3,072 lbs
19Methanol67-56-12,293 lbs0 lbs2,293 lbs
20Nickel compoundsN4951,754 lbs156 lbs1,910 lbs
21Cumene98-82-81,572 lbs0 lbs1,574 lbs
22Nickel And Nickel CompoundsN4951,505 lbs13 lbs1,518 lbs
23Phenol108-95-20 lbs1,155 lbs1,155 lbs
24Styrene100-42-51,142 lbs0 lbs1,142 lbs
25Biphenyl92-52-4345 lbs0 lbs364 lbs
26Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs173 lbs173 lbs
27Mercury7439-97-677 lbs0 lbs77 lbs
28Ethylene glycol107-21-10 lbs0 lbs9 lbs
29Benzo[g,h,i]perylene191-24-20 lbs7 lbs7 lbs
📋
Top chemicals released near this property (2024 only):
Hydrogen cyanide, n-Hexane, Xylene (mixed isomers), Toluene, Benzene
View the full list of 24 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(24 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
2n-Hexane110-54-333,919 lbs0 lbs33,919 lbs
3Xylene (mixed isomers)1330-20-726,409 lbs10 lbs26,419 lbs
4Toluene108-88-316,840 lbs0 lbs16,840 lbs
5Benzene71-43-214,336 lbs0 lbs14,336 lbs
6Hydrogen sulfide7783-06-413,422 lbs0 lbs13,422 lbs
7Diethanolamine111-42-210,082 lbs0 lbs10,082 lbs
8Propylene115-07-19,425 lbs0 lbs9,425 lbs
9Ethylene74-85-18,875 lbs0 lbs8,875 lbs
10Cyclohexane110-82-74,048 lbs0 lbs4,048 lbs
11Ethylbenzene100-41-42,652 lbs0 lbs2,652 lbs
12Ammonia7664-41-71,783 lbs0 lbs1,783 lbs
13Naphthalene91-20-3752 lbs0 lbs752 lbs
14Nickel And Nickel CompoundsN495500 lbs5 lbs505 lbs
15Nitric acid7697-37-2500 lbs0 lbs500 lbs
16Polycyclic aromatic compoundsN590359 lbs15 lbs374 lbs
17Cumene98-82-8284 lbs0 lbs284 lbs
181,2,4-Trimethylbenzene95-63-6222 lbs0 lbs222 lbs
19Styrene100-42-5103 lbs0 lbs103 lbs
20Biphenyl92-52-433 lbs0 lbs33 lbs
21Phenol108-95-20 lbs8 lbs8 lbs
22Mercury7439-97-67 lbs0 lbs7 lbs
23Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
24Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1 lbs1 lbs
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