Montgomery County property record for 433 E Diamond Ave, Gaithersburg, MD 20877
| Property Type | Warehouse, Storage |
|---|---|
| Details | 26,656 sqft · built 1979 |
| Lot Size | 1.5 acres (65,737 sqft) |
| Owner | Company Name on File |
| Last Sale | $5,230,227 (Jan 2026) |
| Tax Bill | $51,118 (2025) |
| Deeds & Mortgages | Jan 2026 Sale Jun 2017 Sale & Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-01817064 |
| Primary APN | 09-01817064 |
|---|---|
| Alternative APN |
|
| Units | 7 Units |
|---|---|
| Stories | 1 Story |
| Building Area | 26,656 sqft Gross Area |
| 1st Floor Area | 26,656 sqft |
| Fire Sprinklers | Fire Sprinklers |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Construction Type | Brick |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 65,737 sqft |
| View / Lot | Commercial/Industrial |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 01817064 |
|---|---|
| Street Address | 433 E DIAMOND AVE |
| City | GAITHERSBURG |
| State | MD |
| Zip | 20877-3067 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Local Zoning Code | CBD |
| Legal Description | PAR A EAST DIAMOND S ERVICE MALL |
| Legal Subdivision | GAITHERSBURG TOWN |
| Legal Block | 1 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 9 |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 700725 |
Source: Montgomery County records · APN 09-01817064
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 | Company Name on File |
|---|---|
| Mailing Address | 195 MORRISTOWN RD, BASKING RIDGE, NJ 07920-1650 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Date | Document |
|---|---|
| Jan 07, 2026 | Special Warranty Deed, Transfer KENSINGTON VANGUARD NATIONAL LAND, KENSINGTON VANGUARD |
| Jun 14, 2017 | Trustee's Deed, Transfer · Line of Credit MISCELLANEOUS INS CO |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 07, 2026 · Amount on Record |
| Deed Sale | Jan 07, 2026 · Amount on Record |
| Prior Sale | Jun 14, 2017 · Amount on Record |
| Deed Book / Page | 70011 / 201 |
| Transfer Doc | 0000203918 |
| Record Updated | Sep 20, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Jan 07, 2026 |
| Property Address | 433 E DIAMOND AVE, GAITHERSBURG, MD 20877-3067 |
| Document Number | 0700110201 |
| Book / Page | 70011 / 201 |
| Map Reference | MB 104 PL 11877 |
| Instrument Date | Dec 23, 2025 |
| Transaction Type | Transfer |
| Record Updated | Jan 29, 2026 |
| Title Company | KENSINGTON VANGUARD NATIONAL LAND, KENSINGTON VANGUARD |
| Amount | Amount Recorded |
|---|---|
| Tax | $26,151.14 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Severalty |
| Address | 195 MORRISTOWN RD, BASKING RIDGE, NJ 07920-1650 |
| Mail Care Of | BLAKE SILVERMAN |
| Document Type | Trustee's Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Jun 14, 2017 |
| Property Address | 433 E DIAMOND AVE, GAITHERSBURG, MD 20877-3067 |
| Document Number | 0544360230 |
| Book / Page | 054436 / 000230 |
| Instrument Date | May 23, 2017 |
| Transaction Type | Transfer |
| Record Updated | Aug 08, 2017 |
| Title Company | BANNER TITLE COMPANY INC, BANNER TITLE CO INC |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $11,750.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 433 E DIAMOND AVE GAITHERSBURG MD 208773067, GAITHERSBURG, MD 20877-3067 |
| Document Number | 544360236 |
|---|---|
| Date | Jun 14, 2017 |
| Book Page | 054436/000236 |
| Name | MISCELLANEOUS INS CO |
|---|---|
| Address | 10851 MASTIN ST # 300, OVERLAND PARK, KS 66210-1690 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 120 Months |
| Due | Jun 13, 2027 |
| Rate Type | Adjustable Rate |
|---|
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 | $3,089,700 (+3.23%) Land $1,187,200 Building $1,902,500 | $3,089,700 (-) Land $1,187,200 Building $1,902,500 | |
| 2025 | $51,118.00 (+17.14%) | $2,993,133 (+6.9%) | $3,089,700 (+10.35%) Land $1,187,200 Building $1,902,500 |
| 2023 | $2,800,000 Land $1,079,400 Building $1,720,600 | $2,800,000 Land $1,079,400 Building $1,720,600 | |
| 2022 | $43,638.00 |
Source: FEMA National Flood Hazard Layer as of April 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Low lower than 98% of the US · lower than 96% of Maryland |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; 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 | 2,000 / 2,000 |
| Radiate Holdings Cable | 1,500 / 50 |
May also be available: T-Mobile USA.
Based on FCC filings for 212 locations within half a mile of this property.
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 | 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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