For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Remodeled Duplex with Studio Space Title is generated by Realmo AI

    135 S 8th Street, South Beloit, IL 61080

    View on Map
    Claim this Listing
    New
    For Sale
    $229,900

    MULTI_FAMILY - SOUTH BELOIT, IL

    Property size:
    1,617 SF
    Price / SF:
    $142/SF
    Added:
    Jun 15, 2026
    Days on Market:
    2
    Last Refresh:
    Jun 16 at 6:06 pm

    Property Features for 135 S 8th Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Bedrooms
    3
    Bathrooms
    2
    Rooms
    Bedroom 3, Bedroom 1, Bedroom 2, Bathroom 1, Bathroom 2, Basement
    Appliances
    Dishwasher, Refrigerator, Oven
    Standard status
    Active
    APN
    0406255010
    Size
    1,617 SF

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    FISHER MILLS + GOODHUES ADD TO THE TOWN OF BELOIT S 1/2 S 1/2 LT 1 + EXC E 45 FT S 1/2 S 1/2 LOT 002 BLOCK 012
    Tax Annual Amount
    2248

    Utilities

    Heating system
    Forced Air, Electric (Heating)

    Building Details

    Year built
    1925
    Floors in Building
    2
    Number of units
    2
    Roof type
    Shingle

    We can help!

    Listing Contact
    Olga Kampmeier
    Olga Kampmeier

    Listing agent Olga Kampmeier License #475166479

    Listing office Keller Williams Realty Signature 4201 Galleria Dr., Loves Park, IL

    Listing date Jun 15, 2026

    MLS# 202603532 Listing URL

    Copyright © 2026 NorthWest Illinois Alliance of REALTORS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Remodeled duplex built in 1925 with a 2‑car attached garage currently converted into a studio space with sliding patio doors
    • Main‑floor unit has 2 bedrooms, 1 bathroom, spacious living room, updated kitchen, and large family room with a stone fireplace (could be converted to a 3rd bedroom)
    • Upstairs 1‑bedroom unit features remodeled finishes throughout
    • Major updates include new plumbing, electrical, drywall, flooring, stairs, exterior and interior doors, furnace, and water heaters
    • Included appliances: dishwasher, refrigerator, and oven
    • Heating includes forced air and electric (heating); roof is shingle

    Overview

    This remodeled duplex offers two updated living units with a layout designed for flexible day-to-day use. The main floor features two bedrooms and one bathroom, with a spacious living room, an updated kitchen, and a large family room that includes a stone fireplace. The primary bedroom has a walk-in closet. The attached two-car garage has been converted into a studio space with sliding patio doors, creating additional options that could be converted back to a garage if desired.

    Upstairs is a remodeled one-bedroom unit with updated finishes. The property’s major improvements include new plumbing, electrical, drywall, flooring, stairs, exterior and interior doors, furnace, and water heaters, along with additional updates described in the remarks.

    Located in South Beloit and described as minutes from downtown, the property provides a practical setup for an owner-occupant who wants rental income alongside their own space, or for an investor seeking a turnkey duplex with permitted, comprehensive interior and exterior updates. The configuration also supports flexible use of the garage conversion based on how a buyer intends to live, rent, or potentially reconfigure the space.

    Local Financial Insights For Multifamily LT 5

    Simulate Cap Rate and NOI

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.

    Component $ $/SF
    Gross rent $24.8k $15.36
    − Vacancy −$1.9k −$1.18
    EGI $22.9k $14.18
    − OpEx −$6.9k −$4.25
    NOI $16.0k $9.93
    1,617 SF · lease $15.36/SF/yr · vacancy 7.69% · expense 30.00%

    Alternative Uses

    Best Use
    Multifamily LT 5
    $229.3K
    $200.6K – $267.5K (±1% cap)
    NOI $16,049 @ 7.0% cap · market cap 6.98%
    Second Best
    Apartment 5plus
    $203.2K
    $177.8K – $237.0K (±1% cap)
    NOI $14,221 @ 7.0% cap · market cap 6.19%
    Theoretical Best
    Office A
    $440.7K
    $385.7K – $514.2K (±1% cap)
    NOI $30,852 @ 7.0% cap · market cap 13.42%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Pharmacy

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    South Beloit
    County
    Winnebago
    State
    Illinois
    Longitude
    -89.046366
    Latitude
    42.494743

    FAQs

    What type of property is this?
    Duplex - Turnkey duplex with a flexible studio conversion and updated units, suited for owner-occupants or rental-focused buyers.
    Where is this duplex located?
    The property is located at 135 S 8th Street South Beloit, IL.
    What is the asking price?
    The asking price for this property is $229,900.
    What are key features of this property?
    This property features: Remodeled duplex built in 1925 with a 2‑car attached garage currently converted into a studio space with sliding patio doors; Main‑floor unit has 2 bedrooms, 1 bathroom, spacious living room, updated kitchen, and large family room with a stone fireplace (could be converted to a 3rd bedroom); Upstairs 1‑bedroom unit features remodeled finishes throughout
    More about this property
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message