4120 Mount Olney Ln, Olney, MD 20832 Property Records

Montgomery County property record for 4120 Mount Olney Ln, Olney, MD 20832

Property Summary

Property Type	Single Family Home
Details	2 ba · 2,180 sqft · built 1971
Lot Size	0.463 acres (20,150 sqft)
Owner	Individual Name on Record
Tax Bill	$6,182 (2025)
Flood Zone	Zone X (minimal risk)
APN	`08-00744771`

Property Details

APN / Parcel Number

Primary APN	`08-00744771`
Alternative APN	`00744771`

Interior

Full Baths	2 Baths
Building Area	2,180 sqft Living Area
1st Floor Area	1,430 sqft
Basement Area	750 sqft
Finished Basement	750 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1971
Architectural Style	Split Foyer
Exterior Material	Combination
Construction Type	Brick
Roof Material	Composition Shingle
Lot Area	20,150 sqft (0.463 acres)
Patio Area	216 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC
Sewer	Municipal

Location & Zoning

Account Number	00744771
Street Address	4120 MOUNT OLNEY LN
City	OLNEY
State	MD
Zip	20832-1004
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RE1
Legal Description	OLNEY MILL
Legal Subdivision	OLNEY MILL
Legal Block	51
Legal Lot Number	8
Jurisdiction	MONTGOMERY MD
Township / Civil Division	8
Census Block Group	1
Census Block	1004
Census Tract	701304

Owner

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

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

Owner of Record	Individual Name on Record
Mailing Address	4120 MOUNT OLNEY LN, OLNEY, MD 20832-1004
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Maryland
County	Montgomery County
Unified School District	Montgomery County Public Schools (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$554,333 (+3.06%)	$587,200 (+9.17%) Land $272,800 Building $314,400
2025	$6,182.00 (+57.14%)	$537,900 (+14.2%) Land $259,800 Building $278,100	$537,900 (-) Land $259,800 Building $278,100
2023		$471,033	$537,900 Land $259,800 Building $278,100
2022	$3,934.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

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

Wildfire Risk	Low lower than 80% of the US · above 41% of Maryland
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation

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 239 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	1,200 / 35
Verizon Fiber	980 / 880
T-Mobile Fixed Wireless	100 / 20