Carroll County property record for 821 William Ave, Westminster, MD 21157
| Property Type | Single Family Home |
|---|---|
| Details | 1.5 ba · 1,640 sqft · built 1958 |
| Lot Size | 0.293 acres (12,750 sqft) |
| Owner | Individual Name on File |
| Last Sale | $215,000 (Jul 2014) |
| Tax Bill | $3,475 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-014589 |
| Primary APN | 07-014589 |
|---|---|
| Alternative APNs |
|
| Full Baths | 1.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,640 sqft Total Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Exterior Material | Brick |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 12,750 sqft (0.293 acres) |
| Lot Dimensions | 150 ft deep x 85 ft wide |
| Porch | Slab |
| Porch Area | 440 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Baseboard |
| Sewer | Connected |
| Account Number | 014589 |
|---|---|
| Street Address | 821 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 76 - 12750 SF 821 WILLIAM AVE 4-17 FAIRFIELD SC B |
| Legal Lot Number | 76 |
| Jurisdiction | CARROLL MD |
| Township / Civil Division | 7, WESTMINSTER |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 507802 |
821 William Ave is owned and occupied by an individual who bought it in July 2014.
Source: Carroll County records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 821 WILLIAM AVE, WESTMINSTER, MD 21157-5937 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 31, 2014 · Amount on File |
| Deed Sale | Jul 31, 2014 · Amount on File |
| Deed Book / Page | 7723 / 451 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 821 William Ave was $3,475 with a homeowner's exemption, up 5.1% from the year before.
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 | $3,475.00 (+5.08%) Homeowner's exemption | $321,600 Land $92,300 Building $229,300 | $321,600 Land $92,300 Building $229,300 |
| 2025 | $3,307.00 Homeowner's exemption | ||
| 2023 | $3,017.00 Homeowner's exemption | $267,000 Land $92,300 Building $174,700 | $267,000 Land $92,300 Building $174,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 821 William Ave in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 821 William Ave is low, with a 0.01% annual chance of wildfire.
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
Search by:
By searching, you agree to: Terms • Privacy • Disclosures