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Property profile & analytics
OFF-MARKET Estimated value $1,705,000
Apartment buildings

509 Main St Oshkosh, WI 54901

15,927 SF 2.79 ac lot Built 1890
Entity Owned ~ Est. High Equity
Property ID
US92-0657003
Property summary
AI-generated overview

This exceptional three-story, 11,000-square-foot multifamily building, located at 509 N Main St #501 in Oshkosh, Wisconsin, presents a compelling investment opportunity. Originally constructed in 1895 and extensively renovated in 2003, this property boasts a prime downtown location with 200 feet of street frontage and benefits from high daily traffic volume (10,000+ cars). The building features five apartments, all with updated appliances (2021), large open floor plans, mature hardwood floors, high ceilings, and abundant natural light. The first floor comprises approximately 5,500 square feet of commercial space, recently renovated in Q1 2023, currently leased to a PhD chiropractor under a three-year lease (commencing 4/1/23) with two 3-year extension options and a 2.5% annual rent increase. The lease includes monthly rent of $4,500 plus utilities. The building's attractive features include a charming interior stairwell, vintage tin ceilings, and vintage light fixtures. A public parking lot is conveniently located behind the building. The property sits on a 5,662 square foot lot and has a 7.5% cap rate with 100% occupancy for multiple years. Building systems include forced air, gas heat, and central air conditioning. The building is constructed of brick and stone with a rubber membrane roof. The asking price is $1,899,900, representing a price per square foot of $172.73. The property is zoned for commercial use and has an APN of 0700260000.

Property profile
Verified
Property type Apartment buildings
Use group APARTMENT HOUSE (5+ UNITS)
Year built 1890
Total area 15,927 SF
Lot 2.79 ac (121,532 SF)
Zoning code C3
APN 07-00260000
UPID US92-0657003
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Value estimations
Realmo proprietary · 4 methods
AI Approach AI
$1.84M
CAP Approach CAP
$1.49M
Comparable Approach Comparable
$1.83M
Blend (final) Blend
$1.71M
Owner & transaction history
509 N Main St LLC
509 N Main St LLC
since 2026
Last sale
$1.6M
2 recorded transactions
2026
$1.8M
2022
$1.6M
Zoning & alternative use
C3 · Oshkosh, WI
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Source City of Oshkosh, WI
Top alternative use upside
Restaurant $2.1M +33.0%
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