Carroll County property record for 817 William Ave, Westminster, MD 21157
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 1,776 sqft · built 1958 |
| Lot Size | 0.293 acres (12,750 sqft) |
| Owner | Company Name on Record |
| Last Sale | $278,000 (Mar 2015) |
| Tax Bill | $4,213 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-030533 |
| Primary APN | 07-030533 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,776 sqft Total Area |
| Basement Area | 275 sqft |
| Finished Basement | 275 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Exterior Material | Brick |
| Roof Material | Composition Shingle |
| Lot Area | 12,750 sqft (0.293 acres) |
| Garage Type | Basement |
| Garage Area | 288 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
| Porch Area | 132 sqft |
| Deck Area | 522 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Baseboard |
| Sewer | Connected |
| Account Number | 030533 |
|---|---|
| Street Address | 817 WILLIAM AVE |
| City | WESTMINSTER |
| State | MD |
| Zip | 21157-5937 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-100 |
| Legal Description | LT 75 - 12750 SF E/S WILLIAM AVE 4-17 FAIRFIELD SC B |
| Legal Subdivision | FAIRFIELD |
| Legal Lot Number | 75 |
| Jurisdiction | CARROLL MD |
| Township / Civil Division | 7, WESTMINSTER |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 507802 |
Source: Carroll County records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 817 WILLIAM AVE, WESTMINSTER, MD 21157-5937 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 25, 2015 · Amount on Record |
| Deed Sale | Mar 25, 2015 · Amount on Record |
| Prior Sale | Jun 5, 2014 · Amount on Record |
| Deed Book / Page | 7921 / 309 |
| Record Updated | Oct 29, 2026 |
Source: Carroll County assessment roll, as of September 8, 2026
| Type | Name |
|---|---|
| State | Maryland |
| County | Carroll County |
| Unified School District | Carroll County Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,213.00 (+5.17%) | $376,200 (+17.31%) Land $92,300 Building $283,900 | $376,200 (+17.31%) Land $92,300 Building $283,900 |
| 2025 | $4,006.00 (+10.57%) | ||
| 2023 | $3,623.00 | $320,700 Land $92,300 Building $228,400 | $320,700 Land $92,300 Building $228,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective March 11, 2016 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 41% of Maryland |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF WESTMINSTER serves 35,256 people · EPA ID MD0060015 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Apr 2018 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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.
Source: FCC Broadband Data Collection, based on 289 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
5G (outdoors only) and 4G LTE
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