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187 Portmarnock Ln, Weldon Spring (Saint Charles), MO 63304 Property Records

St. Charles County property record for 187 Portmarnock Ln, Weldon Spring, MO 63304

Property Summary

Property TypeSingle Family Home
Details3 bd · 3 ba · 2,399 sqft · built 1988
Lot Size0.439 acres (19,166 sqft)
OwnerIndividual Name on Record
Last Sale$560,000 (Mar 2021)
Tax Bill$6,753 (2025)
Deeds & MortgagesMar 2021 Mortgage
Flood ZoneZone X (minimal risk)
APNA883003307

Property Details

APN / Parcel Number

Primary APNA883003307
Alternative APN
  • 3-121B-6315-00-0067.0000000

Interior

Bedrooms3 Beds
Full Baths3 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area2,399 sqft Living Area
1st Floor Area2,399 sqft
Basement Area2,351 sqft
Finished Basement2,000 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1988
Architectural StyleRanch
Exterior MaterialBrick
Lot Area19,166 sqft (0.439 acres)
TerrainRolling
Garage TypeAttached
Parking Spaces2 Parking Spaces
PorchPorch
Porch Area115 sqft
Patio Area444 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air
SewerConnected

Location & Zoning

Account NumberA883003307
Old Parcel NumberA883003307
Street Address187 PORTMARNOCK LN
CityWELDON SPRING
StateMO
Zip63304-0547
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionWHITMOOR COUNTRY CLUB #1 LOT 67
Legal Range03E
Legal Township46N
Legal SubdivisionWHITMOOR COUNTRY CLUB #1
Legal Lot Number67
JurisdictionST CHARLES MO
Township / Civil DivisionCOTTLEVILLE
Census Block Group2
Census Block2000
Census Tract311103

Owner

Source: St. Charles County records, as of March 16, 2026

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

Owner of RecordIndividual Name on Record
Mailing Address187 PORTMARNOCK LN, WELDON SPRING, MO 63304-0547
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMar 8, 2021 · Amount on Record
Deed SaleMar 8, 2021 · Amount on Record
Prior SaleJan 17, 2007
Deed Document Number0202120292
Deed Book / Page2021 / 20292
Record UpdatedJun 8, 2026

March 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionST CHARLES MO
Recording DateMar 8, 2021
Property Address187 PORTMARNOCK LN, WELDON SPRING, MO 63304-0547
Document Number2021R020292
Map ReferenceMB 27 PG 128-137
Instrument DateMar 2, 2021
Instrument2021R-020292
Transaction TypeTransfer
Record UpdatedAug 9, 2021
Title CompanyTITLE PARTNERS AGENCY LLC

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address3511 CAPRI WAY, 3511, SAINT PETERS, MO 63304-5694

Transferred To (Grantee/Buyer)

NameVerified Name
Address187 PORTMARNOCK LN, WELDON SPRING, MO 63304-0547

Mortgage

Document Number2021R020293
DateMar 8, 2021
Instrument2021R-020293
Lender
NameDELMAR FINANCIAL CO
TypeFunding / Finance Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueApr 1, 2051

Tax Assessment & Valuation

Source: St. Charles County assessment roll, as of July 1, 2025

Property Jurisdictions

TypeName
StateMissouri
CountySt. Charles County
MunicipalityWeldon Spring City
Unified School DistrictFrancis Howell R-III School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$6,753.00$114,157 (+6.65%)$600,830 (+6.65%) Land $117,340 Building $483,490
2023$107,035
2022$563,343 Land $105,606 Building $457,737

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 25, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies3 in force
Nearby Flood Claims1 (1982)
Most Recent ClaimJun 1982 · rainfall accumulation

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 RiskLow
lower than 80% of the US · lower than 84% of Missouri
Wildfire Likelihood0.02% annual chance
ExposureDirect
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 SystemWELDON SPRING HEIGHTS VILLAGE PWS
serves 100 people · EPA ID MO6010919
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 145 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL		5,000 / 5,000
Spectrum
Cable		1,000 / 1,000
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Wisper ISP.

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