321 Cousin St, Slidell, LA 70458 Property Records

St. Tammany Parish property record for 321 Cousin St, Slidell, LA 70458

Property Summary

Property TypeSingle Family Home
Details1,800 sqft · built 1940
OwnerIndividual Name on Record
Tax Bill$1,857 (2025)
APN124-049-9978

Property Details

APN / Parcel Number

Primary APN124-049-9978
Alternative APN
  • 87842

Interior

Building Area1,800 sqft Living Area

Exterior

Year BuiltBuilt 1940

Location & Zoning

Old Parcel Number124-049-9978
Street Address321 COUSIN ST
CitySLIDELL
StateLA
Zip70458-3637
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal Description3 PARCELS BEING LOT B SQ 20 OLD TOWN OF SLIDELL AND PARCEL MEAS 30 X 60 IN E PART OF LOT 6 SQ 20 SLIDELL AND PARCEL MEAS 30 X
Legal SubdivisionROBERT ADD
Legal Lot NumberB,6,14
JurisdictionSAINT TAMMANY LA
Township / Civil Division14
Census Block Group3
Census Block3021
Census Tract40900

Owner

Source: St. Tammany Parish records, as of February 5, 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 Address321 COUSIN ST, SLIDELL, LA 70458-3637
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Deed Document Number2118152
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: St. Tammany Parish assessment roll, as of October 15, 2025

Property Jurisdictions

TypeName
StateLouisiana
CountySt. Tammany Parish
MunicipalitySlidell City
Unified School DistrictSt. Tammany Parish School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$1,857.00 (-6.21%)$12,573 (-) Land $4,000 Building $8,573$125,725 (-) Land $40,000 Building $85,725
2024$1,980.00 (+6.62%)$12,573 (+15.03%) Land $4,000 Building $8,573$125,725 (+15.03%) Land $40,000 Building $85,725
2023$1,857.00$10,930 (-) Land $4,000 Building $6,930$109,300 (-6.02%) Land $40,000 Building $69,300
2022$1,857.00$10,930 Land $4,000 Building $6,930$116,300 Land $47,000 Building $69,300

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

FEMA Flood ZoneNot on file
Flood Insurance CostPremium on Record
median of 231 policies
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies231 in force
Nearby Flood Claims693 (1980–2026)
Claims Outside the SFHA17 of 693
Most Recent ClaimJun 2026 · Tropical Storm Arthur
Claims by Event
  • Hurricane Isaac, Sep 2012 · 90 claims
  • Hurricane Katrina, Sep 2005 · 256 claims
  • Severe Storms And Flooding, May 1995 · 135 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 RiskLow
lower than 95% of the US · lower than 93% of Louisiana
Wildfire Likelihood0.02% annual chance
ExposureNone
beyond 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 SystemCITY OF SLIDELL WATER SUPPLY
serves 35,547 people · EPA ID LA1103041
Water SourceGroundwater
Last State InspectionMar 2026
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityE. coli
resolved · Sep 2022
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 284 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Spectrum
Cable
1,000 / 1,000
Tammany Wireless
Fixed Wireless
499 / 285
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: AT&T, Camellia City Fiber.

Nearby Properties on Cousin St

Nearby Streets

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