6 E Diamond Ave, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 6 E Diamond Ave, Gaithersburg, MD 20877

Property Summary

Property Type	Commercial Office
Details	1,712 sqft · built 1889
Lot Size	0.236 acres (10,278 sqft)
Owner	Company Name on File
Last Sale	$510,000 (Nov 2017)
Tax Bill	$8,614 (2025)
Deeds & Mortgages	Nov 2017 Sale & Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`09-00821824`

Property Details

APN / Parcel Number

Primary APN	`09-00821824`
Alternative APN	`00821824`

Interior

Units	4 Units
Stories	2 Stories
Building Area	1,712 sqft Gross Area
1st Floor Area	1,712 sqft
Basement Area	308 sqft
Fire Sprinklers	Fire Sprinklers

Exterior

Year Built	Built 1889
Effective Year Built	Effective 1889
Fire Resistance	Wood or Wood & Steel Frame
Lot Area	10,278 sqft (0.236 acres)
View / Lot	Commercial/Industrial
Garage Area	484 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC
Sewer	Municipal

Location & Zoning

Account Number	00821824
Street Address	6 E DIAMOND AVE
City	GAITHERSBURG
State	MD
Zip	20877-3005
Property Category	Commercial
Property Type	Commercial > Office > Commercial Office
Local Zoning Code	CBD
Legal Description	DIAMOND AVE MERGER
Legal Subdivision	GAITHERSBURG TOWN
Legal Block	4
Jurisdiction	MONTGOMERY MD
Township / Civil Division	9
Census Block Group	4
Census Block	4010
Census Tract	700723

Owner

Source: Montgomery County records · APN 09-00821824

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	6 E DIAMOND AVE, GAITHERSBURG, MD 20877-3005
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Nov 02, 2017 · Amount on Record
Deed Sale	Nov 02, 2017 · Amount on Record
Prior Sale	Dec 11, 2015 · Amount on Record
Deed Book / Page	55171 / 62
Transfer Doc	0000071288
Record Updated	Sep 20, 2026

November 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MONTGOMERY MD
Recording Date	Nov 02, 2017
Property Address	6 E DIAMOND AVE, GAITHERSBURG, MD 20877-3005
Document Number	0551710062
Book / Page	055171 / 000062
Instrument Date	Apr 14, 2017
Transaction Type	Transfer
Record Updated	Nov 13, 2017
Title Company	STRATEGIC NATIONAL TITLE GROUP

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$510.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	6 E DIAMOND AVE GAITHERSBURG MD 208773005, GAITHERSBURG, MD 20877-3005

Mortgage

Document Number	551710070
Date	Nov 02, 2017
Book Page	055171/000070

Lender

Name	BRANCH BK&TR
Type	Bank
Address	BALTIMORE, MD 21231-1675

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Montgomery County records · Assessment roll updated August 17, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Maryland
County	Montgomery County
Municipality	Gaithersburg City
Unified School District	Montgomery County Public Schools (PK - 12)

Tax Bill & Assessment History

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		$611,700 (+1.81%) Land $229,400 Building $382,300	$611,700 (-) Land $229,400 Building $382,300
2025	$8,614.00 (+2.73%)	$600,833 (+3.75%)	$611,700 (+5.63%) Land $229,400 Building $382,300
2024	$8,385.00 (+7.49%)
2023		$579,100 Land $208,500 Building $370,600	$579,100 Land $208,500 Building $370,600
2022	$7,801.00

Flood & Wildfire

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

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

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 / 250
Radiate Holdings Cable	1,500 / 50
AT&T Fixed Wireless	100 / 20
T-Mobile USA Fixed Wireless	100 / 20

Based on FCC filings for 230 locations within half a mile of this property.

Drinking Water

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

Violations Reported to EPA

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.