503 E Washington St, Rockwall, TX 75087 Property Records

Rockwall County property record for 503 E Washington St, Rockwall, TX 75087

Property Summary

Property Type	Single Family Home
Details	992 sqft · built 1940
Lot Size	0.23 acres (10,019 sqft)
Owner	Individual Name on File
Tax Bill	$3,812 (2025)
Flood Zone	Zone X (minimal risk)
APN	`37800010000CA00R`

Property Details

APN / Parcel Number

Primary APN	`37800010000CA00R`
Alternative APNs	`R16801` `16801`

Interior

Stories	1 Story
Building Area	992 sqft Living Area
Gross Area	1,082 sqft
1st Floor Area	992 sqft
Flooring	Wood

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1986
Exterior Material	Wood Siding
Roof Material	Composition Shingle
Lot Area	10,019 sqft (0.23 acres)
Lot Dimensions	100 ft deep x 100 ft wide

Exterior Amenities

Porch	Covered Porch
Porch Area	154 sqft
Deck Area	96 sqft
Storage Building	64 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas

Location & Zoning

Street Address	503 E WASHINGTON ST
City	ROCKWALL
State	TX
Zip	75087-3705
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SF3
Legal Description	GRIFFITH, BLOCK 10, LOT SW PT OF C
Legal Subdivision	GRIFFITH
Legal Block	10
Legal Lot Number	C
Jurisdiction	ROCKWALL TX
Township / Civil Division	NORTHWEST ROCKWALL
Census Block Group	2
Census Block	2024
Census Tract	40305

Owner

Source: Rockwall County records · APN 37800010000CA00R

Assessment roll updated August 11, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	108 ELM CREST DR, ROCKWALL, TX 75087-8701
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Rockwall County records · Assessment roll updated August 11, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Texas
County	Rockwall County
Municipality	Rockwall City
Unified School District	Rockwall Independent School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$240,602 (-0.59%) Land $184,150 Building $56,452	$240,602 (-0.59%) Land $184,150 Building $56,452
2025	$3,812.00 (-4.05%)	$242,022 (+19.09%) Land $184,150 Building $57,872	$242,022 (+19.09%) Land $184,150 Building $57,872
2024	$3,973.00 (+42.76%)
2023		$203,225 Land $152,250 Building $50,975	$203,225 Land $152,250 Building $50,975
2021	$2,783.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 8, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	7 in force

Wildfire

Wildfire Risk	Low lower than 97% of the US · lower than 98.3% of Texas
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Spectrum Cable	1,000 / 1,000
3 Rooms Communications Fixed Wireless	100 / 100
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AMG Technology Investment Group, Flying Bull Internet, Verizon.

Based on FCC filings for 413 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF ROCKWALL serves 55,250 people
Water Source	Purchased surface water from NORTH TEXAS MWD WYLIE WTP
Last State Inspection	Jul 2023
Lead	2 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.