403 E Diamond Ave, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 403 E Diamond Ave, Gaithersburg, MD 20877

Property Summary

Property Type	Retail Stores (Personal Services, Photography, Travel)
Details	2,652 sqft · built 1899
Lot Size	0.25 acres (10,890 sqft)
Owner	Company Name on File
Last Sale	$615,000 (Mar 2022)
Tax Bill	$8,830 (2025)
Deeds & Mortgages	Mar 2022 Sale
Flood Zone	Zone X (minimal risk)
APN	`09-02670784`

Property Details

APN / Parcel Number

Primary APN	`09-02670784`
Alternative APN	`02670784`

Interior

Units	2 Units
Stories	1 Story
Building Area	2,652 sqft Gross Area
1st Floor Area	1,872 sqft
Basement Area	780 sqft

Exterior

Year Built	Built 1899
Effective Year Built	Effective 1899
Construction Type	Brick
Fire Resistance	Wood or Wood & Steel Frame
Lot Area	10,890 sqft (0.25 acres)
View / Lot	Commercial/Industrial
Porch	Open Porch
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Evaporative
Heating System	Steam
Sewer	Municipal

Location & Zoning

Account Number	02670784
Street Address	403 E DIAMOND AVE
City	GAITHERSBURG
State	MD
Zip	20877-3019
Property Category	Commercial
Property Type	Commercial > Retail > Retail Stores (Personal Services, Photography, Travel)
Local Zoning Code	CBD
Legal Description	LAIS ADD DEER PARK
Legal Subdivision	GAITHERSBURG TOWN
Legal Block	1
Legal Lot Number	1
Jurisdiction	MONTGOMERY MD
Township / Civil Division	9
Census Block Group	1
Census Block	1004
Census Tract	700725

Owner

Source: Montgomery County records · APN 09-02670784

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	104 SUMMIT HALL RD, GAITHERSBURG, MD 20877-1847
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Mar 18, 2022 · Amount on Record
Deed Sale	Mar 18, 2022 · Amount on Record
Prior Sale	Mar 31, 2005 · Amount on Record
Deed Book / Page	65436 / 108
Record Updated	Sep 20, 2026

March 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	MONTGOMERY MD
Recording Date	Mar 18, 2022
Property Address	403 E DIAMOND AVE, GAITHERSBURG, MD 20877-3019
Document Number	0654360108
Book / Page	65436 / 108
Map Reference	MB 141 PL 16210
Instrument Date	Mar 16, 2022
Transaction Type	Transfer
Record Updated	Aug 11, 2022
Title Company	SECURITY TITLE GUARANTEE CORPORATION, SECURITY TTL GUARANTEE CORP

Transaction

Amount	Amount Recorded
Tax	$9,225.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	12900 GLEN MILL RD, 12900, POTOMAC, MD 20854-6313

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Severalty
Address	104 SUMMIT HALL RD, GAITHERSBURG, MD 20877-1847

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		$635,400 (+6.55%) Land $393,300 Building $242,100	$635,400 (-) Land $393,300 Building $242,100
2025	$8,830.00 (+20.88%)	$596,333 (+15.08%)	$635,400 (+22.62%) Land $393,300 Building $242,100
2023		$518,200 Land $357,600 Building $160,600	$518,200 Land $357,600 Building $160,600
2022	$7,305.00

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	Low lower than 98% of the US · lower than 96% of Maryland
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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

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.

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.