647 Sontag Rd, Ballwin, MO 63021 Property Records

St. Louis County property record for 647 Sontag Rd, Ballwin, MO 63021

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,470 sqft · built 1929
Lot Size	0.95 acres (41,382 sqft)
Owner	Individual Name on Record
Last Sale	$162,000 (May 2016)
Tax Bill	$2,842 (2025)
Deeds & Mortgages	Nov 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`25S-21-0178`

Property Details

APN / Parcel Number

Primary APN	`25S-21-0178`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Plumbing Fixtures	9 Plumbing Fixtures
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,470 sqft Living Area
1st Floor Area	1,380 sqft
Family Room	Family Room
Game Room	Game Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1929
Effective Year Built	Effective 1929
Architectural Style	Ranch
Construction Type	Frame
Foundation Type	Raised
Lot Area	41,382 sqft (0.95 acres)
Lot Dimensions	198 ft deep x 190 ft wide
Terrain	Above Road/Slope

Exterior Amenities

Porch	Open Frame Porch
Porch Area	70 sqft
Deck Area	50 sqft
Patio Area	207 sqft

Utilities, Heating & Cooling

Cooling System	Window A/C
Heating System	HVAC
Heating Fuel	Oil
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	647 SONTAG RD
City	BALLWIN
State	MO
Zip	63021-7267
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NU
Legal Description	CASTLEWOOD CAMP LOT PT M SE PART
Legal Subdivision	CASTLEWOOD CAMP
Legal Lot Number	M
Jurisdiction	ST LOUIS MO
Township / Civil Division	MERAMEC
Census Block Group	3
Census Block	3006
Census Tract	217921

Owner

Source: St. Louis County records, as of September 29, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on Record
Mailing Address	647 SONTAG RD, BALLWIN, MO 63021-7267
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 16, 2016 · Amount on Record
Deed Sale	May 16, 2016 · Amount on Record
Prior Sale	Aug 27, 2004 · Amount on Record
Deed Document Number	2016770
Deed Book / Page	22016 / 3574
Prior Transfer Date	Sep 16, 2009
Prior Transfer Doc	0187871443
Record Updated	Oct 29, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ST LOUIS MO
Property Address	647 SONTAG RD, BALLWIN, MO 63021-7267
Transaction Type	Mortgage
Record Updated	Sep 14, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	647 SONTAG RD, BALLWIN, MO 63021-7267

Mortgage

Document Number	0244261010
Date	Nov 9, 2020
Book Page	24426/1010
Instrument	2020110901139

Lender

Name	DEPARTMENT OF HOUSING & URBAN DEV
Type	Government Agency
Address	WASHINGTON, DC 20410

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	307 Months
Due	Jun 1, 2046

Tax Assessment & Valuation

Source: St. Louis County assessment roll, as of September 29, 2026

Property Jurisdictions

Type	Name
State	Missouri
County	St. Louis County
Unified School District	Rockwood R-VI School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$41,290 (-) Land $18,030 Building $23,260	$217,300 (-) Land $94,900 Building $122,400
2025	$2,842.00 (-1.97%)	$41,290 (-) Land $18,030 Building $23,260	$217,300 (-) Land $94,900 Building $122,400
2024	$2,899.00 (+0.1%)
2023	$2,896.00 (+53.88%)	$41,290 (+64.11%) Land $27,080 Building $14,210	$217,300 (+64.12%) Land $142,500 Building $74,800
2022	$1,882.00	$25,160 Land $8,000 Building $17,160
2021			$132,400 Land $42,100 Building $90,300

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective August 10, 2025 · 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 100 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force
Nearby Flood Claims	23 (1982–2017)
Claims Outside the SFHA	9 of 23
Most Recent Claim	May 2017 · Severe Storms, Tornadoes, Straight-line Winds And Flooding
Claims by Event	Severe Storms, Tornadoes, Straight-line Winds And Flooding, May 2017 · 2 claims Severe Storms, Tornadoes, Flooding, Apr 1994 · 6 claims Severe Storms & Flooding, Sep 1993 · 9 claims

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

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

Wildfire Risk	Low lower than 80% of the US · lower than 84% of Missouri
Wildfire Likelihood	0.02% 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	MO AMERICAN ST LOUIS ST CHARLES COUNTIES private · serves 1,111,000 people · EPA ID MO6010716
Water Source	Surface water
Last State Inspection	Feb 2024
Lead	Under 1 ppb (2023–2025) 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 158 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Wisper ISP.

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