Montgomery County property record for 21 Case St, Gaithersburg, MD 20878
| Property Type | Townhouse |
|---|---|
| Details | 3.5 ba · 2,420 sqft · built 1999 |
| Lot Size | 0.064 acres (2,775 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $415,000 (Aug 2003) |
| Tax Bill | $8,135 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-03200274 |
| Primary APN | 09-03200274 |
|---|---|
| Alternative APN |
|
| Full Baths | 3.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,420 sqft Living Area |
| Gross Area | 2,800 sqft |
| 1st Floor Area | 960 sqft |
| Basement Area | 500 sqft |
| Finished Basement | 500 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | Townhouse |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 2,775 sqft (0.064 acres) |
| Garage Type | Attached |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 160 sqft |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 03200274 |
|---|---|
| Street Address | 21 CASE ST |
| City | GAITHERSBURG |
| State | MD |
| Zip | 20878-7309 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Local Zoning Code | MXD |
| Legal Description | WASHINGTONIAN CENTER |
| Legal Subdivision | WASHINGTON CENTER CORRECTION PLAT |
| Legal Block | E |
| Legal Lot Number | 18 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 9 |
| Census Block Group | 3 |
| Census Block | 3031 |
| Census Tract | 700839 |
Source: Montgomery County records · APN 09-03200274
Assessment roll updated August 17, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 21 CASE ST, GAITHERSBURG, MD 20878-7309 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 08, 2003 · Amount on Record |
| Deed Sale | Aug 08, 2003 · Amount on Record |
| Prior Sale | Mar 29, 1999 · Amount on Record |
| Deed Document Number | 2003278923 |
| Record Updated | Sep 20, 2026 |
Source: Montgomery County records · Assessment roll updated August 17, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | Maryland |
| County | Montgomery County |
| Municipality | Gaithersburg City |
| Unified School District | Montgomery County Public Schools (PK - 12) |
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 | $610,900 (+1.78%) Land $250,000 Building $360,900 | $610,900 (-) Land $250,000 Building $360,900 | |
| 2025 | $8,135.00 (+17.05%) | $600,233 (+3.69%) | $610,900 (+5.53%) Land $250,000 Building $360,900 |
| 2023 | $578,900 Land $250,000 Building $328,900 | $578,900 Land $250,000 Building $328,900 | |
| 2022 | $6,950.00 |
Source: FEMA National Flood Hazard Layer, Montgomery County (24031C), as of April 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 240317008393, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
Based on FCC filings for 288 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system MD0150005, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WASHINGTON SUBURBAN SANITARY COMMISSION serves 1,900,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | May 2025 |
| Lead | Under 1 ppb (2018–2020) action level 15 ppb |
| 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. The full violation and enforcement history is in the system's EPA record.
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