The 2025 property tax bill for 289 Blackhawk Ln was $14,506 with a homeowner's exemption, up 12.8% from the year before.
Source: Rockwall County assessment roll, as of August 11, 2026
Property Jurisdictions
Type
Name
State
Texas
County
Rockwall County
Unified School District
Rockwall Independent School District (PK - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2026
$1,144,133 (-0.78%)Land $270,000Building $874,133
$1,144,133 (-0.78%)Land $270,000Building $874,133
2025
$14,506.00 (+12.83%)
$1,153,147Land $270,000Building $883,147
$1,153,147Land $270,000Building $883,147
2024
$12,856.00
2023
$764,378Land $299,943Building $464,435
$764,378Land $299,943Building $464,435
2021
$3,084.00
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Flood
FEMA maps place 289 Blackhawk Ln in Zone A, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 8, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone A high risk
100-Year Floodplain
Yes 1% annual chance
Floodway
No
Base Flood Elevation
Not determined for this zone
Flood Insurance Requirement
Required federally backed loans
Nearby Flood Policies
4 in force
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire
Wildfire risk around 289 Blackhawk Ln is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Moderate above 52% of the US · lower than 72% of Texas
Wildfire Likelihood
0.1% annual chance
Exposure
Direct burnable vegetation
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Drinking Water
Source: EPA Safe Drinking Water Information System, as of September 2026
Water System
R C H WSC serves 9,204 people · EPA ID TX1990012
Water Source
Purchased surface water from CITY OF ROCKWALL
Last State Inspection
Jul 2023
Lead
2 ppb (2025) action level 15 ppb
Violations Reported to EPA
Water Quality
None last 10 years
Treatment and Procedure
Lead service line inventory Oct 2024
Monitoring and Reporting
13 last 3 years
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Internet Providers
Source: FCC Broadband Data Collection, based on 37 locations within half a mile, as of December 31, 2025
Provider
Max Down / Up (Mbps)
AT&T Fiber
5,000 / 5,000
Point Broadband Fiber
1,000 / 1,000
Optimum Cable
940 / 35
Nextlink Fixed Wireless
500 / 100
May also be available: Element8, Peoples Communications.