100 W Diamond Ave, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 100 W Diamond Ave, Gaithersburg, MD 20877

Property Summary

Property Type	Public School (Administration, Campus, Dorms, Instruction)
Details	2.5 ba · 1,888 sqft · built 1953
Lot Size	0.378 acres (16,469 sqft)
Owner	Company Name on Record
Last Sale	$690,000 (Oct 2022)
Tax Bill	$8,165 (2025)
Deeds & Mortgages	Oct 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`09-03405740`

Property Details

APN / Parcel Number

Primary APN	`09-03405740`
Alternative APN	`03405740`

Interior

Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	1,888 sqft Gross Area
1st Floor Area	1,792 sqft

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1953
Architectural Style	Townhouse
Fire Resistance	Fireproof Reinforced Concrete
Roof Material	Composition Shingle
Lot Area	16,469 sqft (0.378 acres)
View / Lot	Commercial/Industrial
Loading Dock	96 sqft

Utilities, Heating & Cooling

Cooling System	A/C Chilled Water
Heating System	Hot Water
Sewer	Municipal

Location & Zoning

Account Number	03405740
Street Address	100 W DIAMOND AVE
City	GAITHERSBURG
State	MD
Zip	20877-2148
Property Category	Public Works
Property Type	Public Works > Public School (Administration, Campus, Dorms, Instruction)
Local Zoning Code	RB
Legal Description	MEEMS ADD TO GBURG (PLAT OF CORRECTION)
Legal Subdivision	MEEMS ADD
Legal Block	3
Legal Lot Number	43
Jurisdiction	MONTGOMERY MD
Township / Civil Division	9
Census Block Group	3
Census Block	3003
Census Tract	700724

Owner

Source: Montgomery County records, as of August 17, 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 Record
Mailing Address	100 W DIAMOND AVE, GAITHERSBURG, MD 20877-2148
Owner Type	Company
Vesting	Limited Liability Partnership

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 31, 2022 · Amount on Record
Deed Sale	Oct 31, 2022 · Amount on Record
Prior Sale	Oct 1, 2003 · Amount on Record
Deed Book / Page	66445 / 134
Record Updated	Sep 20, 2026

October 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	MONTGOMERY MD
Recording Date	Oct 31, 2022
Property Address	100 W DIAMOND AVE, GAITHERSBURG, MD 20877-2148
Document Number	0664450134
Book / Page	66445 / 134
Map Reference	PL 22512
Instrument Date	Oct 28, 2022
Transaction Type	Transfer
Record Updated	Nov 15, 2022
Title Company	PURE TITLE LLC

Transaction

Amount	Amount Recorded
Loan-to-Value (LTV)	LTV on Record
Tax	$3,450.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 W DIAMOND AVE, GAITHERSBURG, MD 20877-2148

Mortgage

Document Number	0066445138
Date	Oct 31, 2022
Instrument	66445/138

Lender

Name	READY CAPITAL CORP
Type	Funding / Finance Company

Agreement

Type	SBA Mortgage
Amount	Amount Recorded
Term	300 Months
Due	Oct 28, 2047

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Montgomery County assessment roll, as of August 17, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$680,500 (+16.59%) Land $265,200 Building $415,300	$680,500 (-) Land $265,200 Building $415,300
2025	$8,165.00 (+20.36%)	$583,667 (+49.66%)	$680,500 (+74.49%) Land $265,200 Building $415,300
2024	$6,784.00 (+27.18%)
2023		$390,000 Land $241,200 Building $148,800	$390,000 Land $241,200 Building $148,800
2022	$5,334.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective April 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no wildfire likelihood modeled here

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

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

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, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 230 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20