Montgomery County property record for 620 Professional Dr, Gaithersburg, MD 20879
| Property Type | Commercial Office |
|---|---|
| Details | 25,915 sqft · built 2000 |
| Lot Size | 3.58 acres (156,241 sqft) |
| Owner | Company Name on File |
| Tax Bill | $167,024 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-03352641 |
| Primary APN | 09-03352641 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 25,915 sqft Gross Area |
| 1st Floor Area | 25,915 sqft |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2000 |
| Exterior Material | Brick Veneer |
| Construction Type | Brick |
| Fire Resistance | Masonry Walls, Wood Interior |
| Roof Type | Flat |
| Roof Material | Other |
| Lot Area | 156,241 sqft |
| View / Lot | Commercial/Industrial |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 03352641 |
|---|---|
| Street Address | 620 PROFESSIONAL DR |
| City | GAITHERSBURG |
| State | MD |
| Zip | 20879-3413 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | MXD |
| Legal Description | GAITHERSBURG NORTH R ESEARCH & DEVELOPMENT CE NTER |
| Legal Subdivision | GAITHERSBURG TOWN |
| Legal Block | A |
| Legal Lot Number | P11 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 9 |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 700733 |
620 Professional Dr, a commercial property, is owned by a company.
Source: Montgomery County records, as of August 17, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 847, CARLSBAD, CA 92018-0847 |
| Owner Type | Company |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 620 Professional Dr was $167,024, up 11.8% from the year before.
Source: Montgomery County assessment roll, as of August 17, 2026
| Type | Name |
|---|---|
| State | Maryland |
| County | Montgomery County |
| Municipality | Gaithersburg City |
| Unified School District | Montgomery County Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $13,719,200 (+11.99%) Land $2,159,200 Building $11,560,000 | $13,719,200 (-) Land $2,159,200 Building $11,560,000 | |
| 2025 | $167,024.00 (+11.77%) | $12,250,000 | $13,719,200 Land $2,159,200 Building $11,560,000 |
| 2024 | $149,429.00 | ||
| 2023 | $9,311,600 Land $1,962,300 Building $7,349,300 | $9,311,600 Land $1,962,300 Building $7,349,300 | |
| 2022 | $123,859.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 620 Professional Dr in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective April 12, 2026
| 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 |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 620 Professional Dr is low, with less than 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 96% of the US · lower than 92% of Maryland |
|---|---|
| Wildfire Likelihood | Under 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 | WASHINGTON SUBURBAN SANITARY COMMISSION serves 1,900,000 people · EPA ID MD0150005 |
|---|---|
| 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, 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 16 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
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