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407 E Diamond Ave, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 407 E Diamond Ave, Gaithersburg, MD 20877

Property Summary

Property TypeVacant Land
Lot Size0.279 acres (12,171 sqft)
OwnerCompany Name on File
Last Sale$2,100,000 (Aug 2023)
Tax Bill$1,706 (2025)
Deeds & MortgagesAug 2023 Sale & Mortgage
Nov 2019 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN09-00836437

Property Details

APN / Parcel Number

Primary APN09-00836437
Alternative APN
  • 00836437

Exterior

Lot Area12,171 sqft (0.279 acres)
View / LotCommercial/Industrial

Location & Zoning

Account Number00836437
Street Address407 E DIAMOND AVE
CityGAITHERSBURG
StateMD
Zip20877-3019
Property CategoryVacant Land
Property TypeVacant Land > Uncategorized
Local Zoning CodeCBD
Legal DescriptionDEER PARK
Legal SubdivisionDEER PARK
Legal Block1
Legal Lot Number5
JurisdictionMONTGOMERY MD
Township / Civil Division9
Census Block Group1
Census Block1004
Census Tract700725

Owner

Source: Montgomery County records · APN 09-00836437

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 RecordCompany Name on File
Mailing Address11020 ROSEMONT DR, ROCKVILLE, MD 20852-3651
Owner TypeCompany
VestingLimited Liability Partnership

Deeds, Mortgages & Sale History

DateDocument
Aug 24, 2023Deed, Transfer · Commercial Mortgage
MAINSTREET BANK
Nov 05, 2019Trustee's Deed, Transfer
KENNETH L COHEN

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleAug 24, 2023 · Amount on Record
Deed SaleAug 24, 2023 · Amount on Record
Prior SaleNov 05, 2019 · Amount on Record
Deed Book / Page67306 / 172
Record UpdatedSep 20, 2026

August 2023: Deed, Transfer

Document TypeDeed
JurisdictionMONTGOMERY MD
Recording DateAug 24, 2023
Property Address407 E DIAMOND AVE, GAITHERSBURG, MD 20877-3019
Document Number0673060172
Book / Page67306 / 172
Instrument DateAug 17, 2023
Transaction TypeTransfer
Record UpdatedSep 08, 2023
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TTL INS CO

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$10,500.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name
Address23709 WOODFIELD RD, GAITHERSBURG, MD 20882-2821

Transferred To (Grantee/Buyer)

NameVerified Name
Address11020 ROSEMONT DR, NORTH BETHESDA, MD 20852-3651

Mortgage

Document Number0067306180
DateAug 24, 2023
Instrument67306/180
Lender
NameMAINSTREET BANK
TypeBank
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

November 2019: Trustee's Deed, Transfer

Document TypeTrustee's Deed
JurisdictionMONTGOMERY MD
Recording DateNov 05, 2019
Property Address407 E DIAMOND AVE, GAITHERSBURG, MD 20877-3019
Document Number0584270006
Book / Page058427 / 000006
Instrument DateJul 16, 2019
Transaction TypeTransfer
Record UpdatedNov 28, 2019
Title CompanyASPEN R/E SETTLEMENTS INC

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$1,400.00
Amount AccuracyConfirmed
Additional
  • Arm's Length
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address409 E DIAMOND AVE GAITHERSBURG MD 208773019, GAITHERSBURG, MD 20877-3019

Mortgage

Document Number584270011
DateNov 05, 2019
Book Page058427/000011
Lender
NameKENNETH L COHEN
Agreement
AmountAmount Recorded

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2026$84,100 (+3.15%) Land $84,100$84,100 (-) Land $84,100
2025$1,706.00 (+6.16%)$81,533 (+6.72%) Land $81,533$84,100 (+10.08%) Land $84,100
2023$76,400 (-) Land $76,400$76,400 (-) Land $76,400
2022$1,607.00$76,400 Land $76,400$76,400 Land $76,400

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

Wildfire

Wildfire RiskLow
lower than 98% of the US · lower than 96% of Maryland
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond 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

ProviderMax 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.

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 SystemWASHINGTON SUBURBAN SANITARY COMMISSION
serves 1,900,000 people
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 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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