Complete Property Analysis

Environmental risk, tax analysis, and property details for 4802 Oleander St, Seabrook, TX 77586

HCAD #0571130040001

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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

4802 Oleander St, Seabrook, TX 77586

Building Size

1,823sqft

Total structure area from HCAD building records.

Elevation

12.98 ft

Height above sea level from USGS data.

FEMA Flood Zone

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)

22.83 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)

$80,741

Based on HCAD building value of $124,217.

Depth-Damage (Neighborhood)

$77,851

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.

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.

Special Flood Hazard Area (SFHA): Flood insurance required for federally backed mortgages

Obtain an Elevation Certificate to determine accurate flood insurance premiums

Property elevation currently above simulated flood level

Maintain flood insurance coverage as required in Special Flood Hazard Areas

Review official FEMA Flood Insurance Rate Map (FIRM) for detailed flood zone boundaries

Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information

🏭Industrial Pollution Exposure

28.5th 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)

283 thousandlbs

High

43.3x more than typical Houston property

≈ 14 dump trucks of chemicals within 2 miles

Air Pollution (10 Years)

283 thousandlbs

Very High

58.6x more than typical Houston property

Includes fugitive emissions (leaks) and stack emissions (smokestacks).

Water Pollution (10 Years)

0lbs

None

Discharges to bayous, streams, and drainage systems.

Facilities Nearby

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.

Period	Total	Air
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs
This Property (2014-2024)	282,724 lbs	282,724 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs
This Property (2024 Only)	19,967 lbs	19,967 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

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):
Benzene, Ethylbenzene, Styrene, Ammonia, Ethylene
View the full list of 11 chemicals below.

Chemicals Released (2014-2024, 10-Year Total)(11 chemicals)

#	Chemical	CAS#	Air (lbs/10yr)	Total (lbs/10yr)
1	Benzene	71-43-2	115,467 lbs	115,467 lbs
2	Ethylbenzene	100-41-4	65,946 lbs	65,946 lbs
3	Styrene	100-42-5	47,421 lbs	47,421 lbs
4	Ammonia	7664-41-7	17,698 lbs	17,698 lbs
5	Ethylene	74-85-1	15,437 lbs	15,437 lbs
6	Toluene	108-88-3	8,313 lbs	8,313 lbs
7	Propylene	115-07-1	6,591 lbs	6,591 lbs
8	Acrylonitrile	107-13-1	1,977 lbs	1,977 lbs
9	Butyl acrylate	141-32-2	1,939 lbs	1,939 lbs
10	1,3-Butadiene	106-99-0	1,870 lbs	1,870 lbs
11	Xylene (mixed isomers)	1330-20-7	65 lbs	65 lbs

📋

Top chemicals released near this property (2024 only):
Benzene, Ethylbenzene, Styrene, Propylene, Acrylonitrile
View the full list of 8 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only)(8 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Benzene	71-43-2	8,393 lbs	8,393 lbs
2	Ethylbenzene	100-41-4	3,948 lbs	3,948 lbs
3	Styrene	100-42-5	3,330 lbs	3,330 lbs
4	Propylene	115-07-1	1,303 lbs	1,303 lbs
5	Acrylonitrile	107-13-1	879 lbs	879 lbs
6	Butyl acrylate	141-32-2	848 lbs	848 lbs
7	Ethylene	74-85-1	741 lbs	741 lbs
8	Toluene	108-88-3	525 lbs	525 lbs