409 Kostmayer Ave

858 Sq. Ft.
$128 / Sq. Ft.
858
Sq. Ft.
$128
per Sq. Ft.

Description

Slidell Charmer with Bonus Efficiency Apartment in Sought-After Salmen Addition! Don't miss this well-appointed 3-bedroom, 1.5-bath home nestled in the established Salmen Addition neighborhood of Slidell. Whether you're a first-time buyer, investor, or savvy homeowner looking to offset your mortgage, this property delivers incredible value and versatility. The standout feature? A fully self-contained mother-in-law/efficiency apartment, perfect for extended family or out-of-town guests Step outside...Slidell Charmer with Bonus Efficiency Apartment in Sought-After Salmen Addition! Don't miss this well-appointed 3-bedroom, 1.5-bath home nestled in the established Salmen Addition neighborhood of Slidell. Whether you're a first-time buyer, investor, or savvy homeowner looking to offset your mortgage, this property delivers incredible value and versatility. The standout feature? A fully self-contained mother-in-law/efficiency apartment, perfect for extended family or out-of-town guests Step outside and enjoy the generous covered patio, an ideal spot for entertaining, relaxing, or simply soaking in the Louisiana lifestyle year-round rain or shine. This home offers the kind of quiet, established neighborhood feel that buyers are always searching for. Schedule your showing today before this one is gone!
  1. Listed by Nichell Thompson • Keller Williams Realty New Orleans
    P: (504)-261-5182 C: (504)-261-5182 nichellt@bellsouth.net

Property Details for 409 Kostmayer Avenue

Architectural Style
Cottage Style
Subdivision Name
Salmen Addition
LISTING UPDATED: 06/15/2026 01:18 PM

Property Details for 409 Kostmayer Avenue

StatusActive
MLS #2562422
Days on Market29
Taxes-
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Detached Single Family / Single Family Home
Year Built1950
Lot Size0.27 AC / 11,761 SF
CountySt. Tammany Parish

Location

Listing Courtesy of Keller Williams Realty New Orleans
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Building Information for 409 Kostmayer Avenue

Stories1Year Built1950Building Size-Lot Size0.27 AC / 11,761 SF

Payment Calculator

$651 per month

30 year fixed, 6.36% Interest

Principal and Interest

$548

Property Taxes

$103

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 409 Kostmayer Avenue

Summary
Location and General Information
  • Directions: Bounding Streets: Highway 11, Front St.
  • Latitude: 30.26
  • Longitude: -89.79
  • MLS Area Minor: ST. TAMMANY
  • Year Built: 1,950
  • In City Limits: Yes
Parking
  • Parking Features: 2 Car
Taxes and HOA
  • Association: No
  • Tax Legal Description: LOT 5 SQ D SALMEN ADD 2 CB 500 211 INST NO 1353618 INST NO 1380395 INST NO 1645969 INST NO 1652663 INST NO 1681466 INST NO 1910918 INST NO 2032614 INST NO 2073974 INST NO 2188255 INST NO 2121119 INST NO 2169132 INST NO 2217888 INST NO 2217940 INST NO 2222387
  • Tax Lot: 5
Virtual Tour
Property
Lot Information
  • Building Area Total: 858.0
  • Living Area: 858.0
  • Living Area Source: Public Records
  • Lot Features: Rear Yard Vehicle Access
  • Lot Size Acres: 0.27
  • Lot Size Dimensions: 65/60/197
Property and Assessments
  • Home Warranty: No
  • Parcel Number: 86627
  • Property Sub Type: Detached Single Family
  • Property Type: Residential
  • Sub Type: Single Family Home
  • Overall Condition: Average
Utilities
  • Sewer: Public Sewer
  • Water Source: Public
  • GS Utilities Gas: None
  • EL Utilities Elec: CLECO
Interior and Exterior Features
Exterior Features
  • Construction Materials: Vinyl Siding
  • Exterior Features:
  • Fencing: None
  • Foundation Details: Slab
  • Patio And Porch Features: Patio: Concrete, Covered
  • Pool Private: No
  • Roof: Other
  • Stories: 1
Interior Features
  • Appliances: Dishwasher, Range, Refrigerator
  • Bathrooms Full: 1
  • Bathrooms Partial: 1
  • Bedrooms Total: 3
  • Cooling: Central Air
  • Door Features:
  • Heating: Central
  • Interior Features: Ceiling Fan(s)
  • Window Features:
  • Bathrooms Display: 1/1

Property History for 409 Kostmayer Avenue

DateEvent & SourcePriceAppreciation
Jun 5, 2026

Listed (Active)

ROAM MLS #2562422

$110,000
Aug 17, 2020

Sold (Public Record)

Public Record #1406931854

May 9, 2008

Sold

ROAM MLS #NO719679

DateEvent & SourcePrice
06/05/2026

Listed (Active)

ROAM MLS #2562422

$110,000
08/17/2020

Sold (Public Record)

Public Record #1406931854

05/09/2008

Sold

ROAM MLS #NO719679

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 409 Kostmayer Avenue

Taxable ValueLand$1,850Additions$6,437Total$8,287
Tax Record2025$1,238 ($103 / month)
Home Facts
Beds0Total Finished SqFt816 SqFtAbove Grade Finished SqFt816 SqFtStyleSingle Family ResidenceYear Built1990CountySAINT TAMMANYAPN86627

Schools near 409 Kostmayer Avenue

This home is within St. Tammany Parish School District.
Rating
School
Type
Grades
Distance
Public - 1 to 5
Public - 6 to 8
Public - 9 to 12
Private - PK to 12
Rating
School
Distance
W.L. Abney Elementary School
Public1 to 5

St. Tammany Junior High School
Public6 to 8

Salmen High School
Public9 to 12

Lakeside Christian Academy
PrivatePK to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Similar Homes

409 Kostmayer Avenue is a single family home for sale in Slidell, LA 70458. This property was listed for sale on June 5, 2026 by Keller Williams Realty New Orleans, it's currently listed at $110,000. It has been on the market for a total of 29 days and was last sold on August 17, 2020. This listing's school district is St. Tammany Parish School District. Nearby schools include W.L. Abney Elementary School, St. Tammany Junior High School and Salmen High School. 409 Kostmayer Avenue is a 3-bed, 2-bath, 858 sqft single family home built in 1950.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Keller Williams Realty New Orleans

The data relating to real estate listings on this website comes in part from the Internet Data Exchange (IDX) program of Multiple Listing Service of ROAM MLS, Gulf Coast Association of REALTORS, REALTOR Association of Acadiana and South West Louisiana Association of REALTORS. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listings provided by brokerages other than Compass are identified with the ROAM MLS, Gulf Coast Association of REALTORS, REALTOR Association of Acadiana and South West Louisiana Association of REALTORS Logos. All Information Is Deemed Reliable But Is Not Guaranteed Accurate. All information should be verified by the recipient and none is guaranteed as accurate by ROAM MLS, Gulf Coast, REALTOR Association of Acadiana and South West Louisiana Association of REALTORS.Listing information Copyright© 2026 MLS of ROAM, Gulf Coast, REALTOR Association of Acadiana and South West Louisiana Multiple Listing Service, Inc. All Rights Reserved.