840 Hidden Marsh St, Gaithersburg, MD 20877 Property Records

Montgomery County property record for 840 Hidden Marsh St, Gaithersburg, MD 20877

Property Summary

Property Type	Single Family Home
Details	5.5 ba · 4,277 sqft · built 2007
Lot Size	0.079 acres (3,443 sqft)
Owner	2 Individual Names on File
Last Sale	$650,000 (Jan 2021)
Tax Bill	$9,250 (2025)
Deeds & Mortgages	Jan 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`09-03454886`

Property Details

APN / Parcel Number

Primary APN	`09-03454886`
Alternative APN	`03454886`

Interior

Full Baths	5.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	4,277 sqft Living Area
Gross Area	4,677 sqft
1st Floor Area	1,701 sqft
Basement Area	1,275 sqft
Finished Basement	1,275 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2007
Effective Year Built	Effective 2007
Architectural Style	Bi-Level
Exterior Material	Siding
Roof Material	Composition Shingle
Lot Area	3,443 sqft (0.079 acres)
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces
Porch	Open Porch
Porch Area	268 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Account Number	03454886
Street Address	840 HIDDEN MARSH ST
City	GAITHERSBURG
State	MD
Zip	20877-2974
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	MXD
Legal Description	HIDDEN CREEK
Legal Subdivision	HIDDEN CREEK
Legal Block	E
Legal Lot Number	33
Jurisdiction	MONTGOMERY MD
Township / Civil Division	9
Census Block Group	1
Census Block	1000
Census Tract	700726

Owner

840 Hidden Marsh St is owned and occupied by two individuals who bought it in January 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	840 HIDDEN MARSH ST, GAITHERSBURG, MD 20877-2974
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants by the Entirety

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 Names	2 Names on Deed
Last Sale	Jan 12, 2021 · Amount on File
Deed Sale	Jan 12, 2021 · Amount on File
Prior Sale	Sep 28, 2007 · Amount on File
Deed Book / Page	61584 / 298
Record Updated	Sep 20, 2026

January 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MONTGOMERY MD
Recording Date	Jan 13, 2021
Property Address	840 HIDDEN MARSH ST, GAITHERSBURG, MD 20877-2974
Document Number	0615840298
Book / Page	061584 / 000298
Instrument Date	Dec 24, 2020
Transaction Type	Transfer
Record Updated	Feb 18, 2021
Title Company	HOUSEHOLD TITLE AND ESCROW LLC, HOUSEHOLD TITLE & ESCROW LLC

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$6,500.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants by the Entirety
Address	840 HIDDEN MARSH ST GAITHERSBURG MD 208772974, GAITHERSBURG, MD 20877-2974

Mortgage

Document Number	615840305
Date	Jan 13, 2021
Book Page	061584/000305

Lender

Name	CALIBER HM LOANS
Type	Funding / Finance Company
Address	COPPELL, TX 75019

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	360 Months
Due	Jan 12, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 840 Hidden Marsh St was $9,250.

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		$797,700 (+8.28%) Land $162,800 Building $634,900	$797,700 (-) Land $162,800 Building $634,900
2025	$9,250.00	$736,700	$797,700 Land $162,800 Building $634,900
2023		$614,700 Land $163,700 Building $451,000	$614,700 Land $163,700 Building $451,000
2022	$7,244.00

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

Flood

FEMA maps place 840 Hidden Marsh St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 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

The area around 840 Hidden Marsh St 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 Risk	Not 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 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 460 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
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband.

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