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640 E Diamond Ave, #5, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 640 E Diamond Ave, #5, Gaithersburg, MD 20877

Property Summary

Property TypeWarehouse, Storage
Details15,501 sqft · built 1994
Lot Size1.04 acres (45,616 sqft)
OwnerCompany Name on File
Last Sale$1,200,000 (Nov 1995)
Tax Bill$7,188 (2025)
Deeds & MortgagesOct 2023 Sale
Flood ZoneZone X (minimal risk)
APN09-03060512

Property Details

APN / Parcel Number

Primary APN09-03060512
Alternative APN
  • 03060512

Interior

Units6 Units
Stories1 Story
Building Area15,501 sqft Gross Area
1st Floor Area15,501 sqft

Exterior

Year BuiltBuilt 1994
Effective Year BuiltEffective 1994
Exterior MaterialBrick
Construction TypeBrick
Fire ResistanceMasonry Walls, Wood Interior
Lot Area45,616 sqft
View / LotCommercial/Industrial

Utilities, Heating & Cooling

Cooling SystemA/C Chilled Water
Heating SystemHot Water
SewerMunicipal

Location & Zoning

Account Number03060512
Street Address640 E DIAMOND AVE, 5
CityGAITHERSBURG
StateMD
Zip20877-5323
Property CategoryIndustrial
Property TypeIndustrial > Warehouse, Storage
Local Zoning CodeCBD
Legal DescriptionUN 5 GIRARD PLACE CONDO
Legal SubdivisionGIRARD PLACE CODM AMENDED
Legal Block2
JurisdictionMONTGOMERY MD
Township / Civil Division9
Census Block Group2
Census Block2001
Census Tract700726

Owner

640 E Diamond Ave, #5 is owned by a company that bought it in November 1995.

Source: Montgomery County records, as of August 17, 2026

Owner of RecordCompany Name on File
Mailing Address7200 WISCONSIN AVE, 1100, BETHESDA, MD 20814-4845
Owner TypeCompany
VestingLimited Liability Partnership

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleNov 22, 1995 · Amount on File
Deed SaleNov 22, 1995 · Amount on File
Deed Document Number199559670
Deed Book / Page13771 / 606
Record UpdatedSep 20, 2026

October 2023: Deed, Transfer

Document TypeDeed
JurisdictionMONTGOMERY MD
Recording DateOct 4, 2023
Property Address640 E DIAMOND AVE # 5, 5, GAITHERSBURG, MD 20877-5323
Document Number0674330170
Book / Page67433 / 170
Map ReferencePL 6764
Instrument DateSep 20, 2023
Transaction TypeTransfer
Record UpdatedOct 18, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Arm's Length
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name
Address610 E DIAMOND AVE # AVE100, AVE100, GAITHERSBURG, MD 20877-5321

Transferred To (Grantee/Buyer)

NameVerified Name
Address7200 WISCONSIN AVE STE 1100, 1100, BETHESDA, MD 20814-4845

Tax Assessment & Valuation

The 2025 property tax bill for 640 E Diamond Ave, #5 was $7,188.

Source: Montgomery County assessment roll, as of August 17, 2026

Property Jurisdictions

TypeName
StateMaryland
CountyMontgomery County
MunicipalityGaithersburg City
Unified School DistrictMontgomery County Public Schools (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$3,172,600 (+1.22%) Land $678,300 Building $2,494,300$3,172,600 (-) Land $678,300 Building $2,494,300
2025$7,188.00$3,134,500$3,172,600 Land $678,300 Building $2,494,300
2023$3,122,500 Land $616,700 Building $2,505,800$3,122,500 Land $616,700 Building $2,505,800
2022$5,177.00

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

Flood

FEMA maps place 640 E Diamond Ave, #5 in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective April 12, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

The area around 640 E Diamond Ave, #5 has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land within ember reach

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 SystemWASHINGTON SUBURBAN SANITARY COMMISSION
serves 1,900,000 people · EPA ID MD0150005
Water SourceSurface water
Last State InspectionMay 2025
LeadUnder 1 ppb (2018–2020)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 290 locations within half a mile, as of December 31, 2025

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

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