9423 Thornhill Rd, Silver Spring, MD 20901 Property Records

Montgomery County property record for 9423 Thornhill Rd, Silver Spring, MD 20901

Property Summary

Property Type	Single Family Home
Details	2.5 ba · 2,350 sqft · built 1935
Lot Size	0.161 acres (7,000 sqft)
Owner	2 Individual Names on File
Last Sale	$635,000 (May 2012)
Tax Bill	$7,810 (2025)
Deeds & Mortgages	Oct 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`13-01030605`

Property Details

APN / Parcel Number

Primary APN	`13-01030605`
Alternative APN	`01030605`

Interior

Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,350 sqft Living Area
1st Floor Area	1,052 sqft
Basement Area	698 sqft
Finished Basement	698 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1935
Effective Year Built	Effective 1935
Architectural Style	Bi-Level
Exterior Material	Brick
Construction Type	Frame
Roof Material	Slate
Lot Area	7,000 sqft (0.161 acres)
Porch	Open Porch
Porch Area	119 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Radiant
Sewer	Municipal

Location & Zoning

Account Number	01030605
Street Address	9423 THORNHILL RD
City	SILVER SPRING
State	MD
Zip	20901-4833
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R60
Legal Description	NORTH HILLS SEC 1
Legal Subdivision	NORTH HILLS
Legal Block	A
Legal Lot Number	17
Jurisdiction	MONTGOMERY MD
Township / Civil Division	13
Census Block Group	2
Census Block	2014
Census Tract	702302

Owner

Source: Montgomery County records · APN 13-01030605

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	2 Individual Names on File
Mailing Address	9423 THORNHILL RD, SILVER SPRING, MD 20901-4833
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 29, 2012 · Amount on Record
Deed Sale	May 29, 2012 · Amount on Record
Prior Sale	Jul 09, 2007 · Amount on Record
Deed Book / Page	44057 / 489
Transfer Doc	0000090347
Record Updated	Sep 20, 2026

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MONTGOMERY MD
Property Address	9423 THORNHILL RD, SILVER SPRING, MD 20901-4833
Transaction Type	Mortgage
Record Updated	Oct 27, 2021
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SVCS INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0642550407
Date	Oct 13, 2021
Book Page	64255/407

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Oct 01, 2051

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
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		$710,167 (+5.39%)	$746,500 (-) Land $311,000 Building $435,500
2025	$7,810.00 (+12.6%)	$673,833 (+5.7%)	$746,500 (+17.1%) Land $311,000 Building $435,500
2023		$637,500 Land $311,000 Building $326,500	$637,500 Land $311,000 Building $326,500
2022	$6,936.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of April 12, 2026 · FEMA NFIP claims and policies as of September 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
Nearby Flood Policies	1 in force
Nearby Flood Claims	2 (2003–2014)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Aug 2014 · rainfall accumulation

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

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: Starry.

Based on FCC filings for 497 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.