Data-driven insights for local properties

Complete Property Analysis

Environmental risk, tax analysis, and property details for 5706 Allendale Rd, Houston, TX 77017

HCAD #0772600170023
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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
5706 Allendale Rd, Houston, TX 77017
Building Size
1,520sqft
Total structure area from HCAD building records.
Elevation
28.98 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
103.0 acres
34.9% 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
12.2th percentile
Property Pollution Ranking
High
Higher pollution than 88% of Houston homes
Compares pollution within 2mi against 10,000 Houston properties. Lower percentiles = higher pollution.
Industrial Pollution Nearby (10 Years)
4.18 millionlbs
Extremely High
641.2x more than typical Houston property
≈ 209 dump trucks of chemicals within 2 miles
Air Pollution (10 Years)
4.18 millionlbs
Extremely High
866.8x 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
7
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)4,183,630 lbs4,180,133 lbs3,496 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)324,720 lbs324,515 lbs205 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 88% 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, Hydrogen cyanide, Ammonia, n-Hexane, Ethylene
View the full list of 32 chemicals below.
Chemicals Released (2014-2024, 10-Year Total)(32 chemicals)
#ChemicalCAS#Air (lbs/10yr)Water (lbs/10yr)Total (lbs/10yr)
1Propylene115-07-1936,912 lbs0 lbs936,912 lbs
2Hydrogen cyanide74-90-8818,552 lbs0 lbs818,552 lbs
3Ammonia7664-41-7631,062 lbs0 lbs631,062 lbs
4n-Hexane110-54-3391,060 lbs0 lbs391,067 lbs
5Ethylene74-85-1292,319 lbs0 lbs292,319 lbs
6Toluene108-88-3227,742 lbs244 lbs228,010 lbs
7Xylene (mixed isomers)1330-20-7227,286 lbs627 lbs227,943 lbs
8Hydrogen sulfide7783-06-4206,443 lbs0 lbs206,443 lbs
9Benzene71-43-2203,264 lbs457 lbs203,732 lbs
10Diethanolamine111-42-2101,560 lbs0 lbs101,560 lbs
11Cyclohexane110-82-752,501 lbs0 lbs52,510 lbs
12Ethylbenzene100-41-427,301 lbs63 lbs27,372 lbs
131,3-Butadiene106-99-021,614 lbs0 lbs21,614 lbs
14N-Methyl-2-pyrrolidone872-50-417,750 lbs0 lbs17,750 lbs
15Naphthalene91-20-34,683 lbs75 lbs4,766 lbs
16Nitric acid7697-37-24,015 lbs0 lbs4,015 lbs
17Polycyclic aromatic compoundsN5902,949 lbs526 lbs3,753 lbs
18Methanol67-56-13,468 lbs0 lbs3,468 lbs
191,2,4-Trimethylbenzene95-63-63,058 lbs0 lbs3,072 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
23Styrene100-42-51,263 lbs0 lbs1,263 lbs
24Phenol108-95-20 lbs1,155 lbs1,155 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
28Isoprene78-79-560 lbs0 lbs60 lbs
29Chromium compounds (except for chromite ore mined in the Transvaal Region)N09011 lbs0 lbs11 lbs
30Ethylene glycol107-21-10 lbs0 lbs9 lbs
31Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0908 lbs0 lbs8 lbs
32Benzo[g,h,i]perylene191-24-20 lbs7 lbs7 lbs
📋
Top chemicals released near this property (2024 only):
Ammonia, Hydrogen cyanide, n-Hexane, Propylene, Xylene (mixed isomers)
View the full list of 27 chemicals reported within 2 miles for 2024.
Chemicals Released (2024 Only)(27 chemicals)
#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Ammonia7664-41-773,883 lbs0 lbs73,883 lbs
2Hydrogen cyanide74-90-873,728 lbs0 lbs73,728 lbs
3n-Hexane110-54-335,025 lbs0 lbs35,025 lbs
4Propylene115-07-133,225 lbs0 lbs33,225 lbs
5Xylene (mixed isomers)1330-20-726,533 lbs10 lbs26,543 lbs
6Toluene108-88-316,950 lbs4 lbs16,954 lbs
7Ethylene74-85-116,725 lbs0 lbs16,725 lbs
8Benzene71-43-215,436 lbs110 lbs15,546 lbs
9Hydrogen sulfide7783-06-413,422 lbs0 lbs13,422 lbs
10Diethanolamine111-42-210,082 lbs0 lbs10,082 lbs
11Cyclohexane110-82-74,048 lbs0 lbs4,048 lbs
12Ethylbenzene100-41-42,657 lbs1 lbs2,658 lbs
13Naphthalene91-20-3754 lbs7 lbs761 lbs
14Nickel And Nickel CompoundsN495500 lbs5 lbs505 lbs
15Nitric acid7697-37-2500 lbs0 lbs500 lbs
16Polycyclic aromatic compoundsN590360 lbs55 lbs415 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
211,3-Butadiene106-99-028 lbs0 lbs28 lbs
22Phenol108-95-20 lbs8 lbs8 lbs
23Isoprene78-79-58 lbs0 lbs8 lbs
24Mercury7439-97-67 lbs0 lbs7 lbs
25Benzo[g,h,i]perylene191-24-20 lbs5 lbs5 lbs
26Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0902 lbs0 lbs2 lbs
27Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs1 lbs1 lbs
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