Montgomery County property record for 122 E Diamond Ave, Gaithersburg, MD 20877
| Property Type | Retail Stores (Personal Services, Photography, Travel) |
|---|---|
| Details | 1,320 sqft · built 1936 |
| Lot Size | 0.239 acres (10,415 sqft) |
| Owner | Company Name on File |
| Last Sale | $430,000 (May 2017) |
| Tax Bill | $7,377 (2025) |
| Deeds & Mortgages | Nov 2017 Line of Credit Nov 2017 Line of Credit + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-00836426 |
| Primary APN | 09-00836426 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,320 sqft Gross Area |
| 1st Floor Area | 1,320 sqft |
| Year Built | Built 1936 |
|---|---|
| Effective Year Built | Effective 1936 |
| Construction Type | Brick |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 10,415 sqft (0.239 acres) |
| View / Lot | Commercial/Industrial |
| Cooling System | Central |
|---|---|
| Heating System | Radiant |
| Sewer | Municipal |
| Account Number | 00836426 |
|---|---|
| Street Address | 122 E DIAMOND AVE |
| City | GAITHERSBURG |
| State | MD |
| Zip | 20877-3022 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Retail Stores (Personal Services, Photography, Travel) |
| Local Zoning Code | CBD |
| Legal Description | DEER PARK DIAMOND AV E 2606/474 |
| Legal Subdivision | DEER PARK |
| Legal Block | 4 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 9 |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 700723 |
Source: Montgomery County records · APN 09-00836426
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 | PO BOX 7950, ESSEX, MD 21221-0950 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Nov 28, 2017 | Deed of Trust, Mortgage · Line of Credit MAINSTREET BK |
| Nov 28, 2017 | Deed of Trust, Mortgage · Line of Credit MAINSTREET BK |
| May 30, 2017 | Grant Deed, Transfer SECURITY TITLE GUARANTEE CORPORATION, SECURITY TITLE GUARANTEE CORP |
| May 30, 2017 | Grant Deed, Transfer SECURITY TITLE GUARANTEE CORPORATION, SECURITY TITLE GUARANTEE CORP |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 30, 2017 · Amount on Record |
| Deed Sale | May 30, 2017 · Amount on Record |
| Deed Book / Page | 54357 / 424 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 122 E DIAMOND AVE, GAITHERSBURG, MD 20877-3022 |
| Document Number | 0555000206 |
| Book / Page | 055500 / 000206 |
| Instrument Date | Nov 28, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 30, 2018 |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 10128 COLESVILLE RD SILVER SPRING MD 209012425, SILVER SPRING, MD 20901-2425 |
| Document Number | 0555000206 |
|---|---|
| Date | Jan 18, 2018 |
| Book Page | 055500/000206 |
| Name | MAINSTREET BK |
|---|---|
| Type | Bank |
| Address | FAIRFAX, VA 22030 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 122 E DIAMOND AVE, GAITHERSBURG, MD 20877-3022 |
| Document Number | 0555000184 |
| Book / Page | 055500 / 000184 |
| Instrument Date | Nov 28, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Feb 16, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 10128 COLESVILLE RD SILVER SPRING MD 209012425, SILVER SPRING, MD 20901-2425 |
| Document Number | 0555000184 |
|---|---|
| Date | Jan 18, 2018 |
| Book Page | 055500/000184 |
| Name | MAINSTREET BK |
|---|---|
| Type | Bank |
| Address | FAIRFAX, VA 22030 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | May 30, 2017 |
| Property Address | 122 E DIAMOND AVE, GAITHERSBURG, MD 20877-3022 |
| Document Number | 0543570424 |
| Book / Page | 054357 / 000424 |
| Instrument Date | Apr 12, 2017 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2017 |
| Title Company | SECURITY TITLE GUARANTEE CORPORATION, SECURITY TITLE GUARANTEE CORP |
| Amount | Amount Recorded |
|---|---|
| Tax | $430.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 10128 COLESVILLE RD SILVER SPRING MD 209012425, SILVER SPRING, MD 20901-2425 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | May 30, 2017 |
| Property Address | 122 E DIAMOND AVE, GAITHERSBURG, MD 20877-3022 |
| Document Number | 0543570432 |
| Book / Page | 054357 / 000432 |
| Instrument Date | Apr 12, 2017 |
| Transaction Type | Transfer |
| Record Updated | Jun 08, 2017 |
| Title Company | SECURITY TITLE GUARANTEE CORPORATION, SECURITY TITLE GUARANTEE CORP |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 10128 COLESVILLE RD SILVER SPRING MD 209012425, SILVER SPRING, MD 20901-2425 |
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 | $478,100 (+2.33%) Land $232,400 Building $245,700 | $478,100 (-) Land $232,400 Building $245,700 | |
| 2025 | $7,377.00 (+12.88%) | $467,200 (+4.89%) | $478,100 (+7.34%) Land $232,400 Building $245,700 |
| 2023 | $445,400 Land $211,300 Building $234,100 | $445,400 Land $211,300 Building $234,100 | |
| 2022 | $6,535.00 |
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 | Not rated no burnable land within 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 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
Based on FCC filings for 276 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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