For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Two-Unit Residential Duplex Title is generated by Realmo AI

    86 B 4th Street, Auburn, ME 04210

    View on Map
    Claim this Listing
    For Sale
    $389,900

    Updated two-unit duplex with in-unit laundry, off-street parking, and three-bedroom layouts suited to multiple living arrangements.

    Type:Multi-Family
    Property size:
    2,178 SF
    Price / SF:
    $179/SF
    Added:
    May 26, 2026
    Days on Market:
    15
    Last Refresh:
    Jun 6 at 2:53 am

    Property Features for 86 B 4th Street

    General Information

    Standard status
    Active
    Size
    2,178 SF
    Property subtype
    Multi-Family

    Building Details

    Year Built
    1889

    We can help!

    Listing Contact
    Melissa Richter
    Melissa Richter

    Listing agent Melissa Richter

    Listing office Keller Williams Realty

    Listing date May 26, 2026

    Source Compass

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of Keller Williams Realty

    HighLights

    • Updated 2‑unit duplex built in 1889 with 3 floors and 2 total bathrooms
    • Two residential units with in‑unit laundry and three‑bedroom layouts
    • Off‑street parking available; porch included
    • Recent upgrades include a new roof and new furnace, plus paint, flooring, lighting, and electrical upgrades
    • Unfinished interior basement with brick/mortar finish and new basement stairs
    • Opportunity to expand into the walk‑up attic (confirm plans with the code office)

    Overview

    This updated two-unit duplex offers two separate residential units designed with three bedrooms each. The property includes in-unit laundry and off-street parking, and it has been improved with a new roof, new furnace, new basement stairs, along with paint, flooring, lighting, and electrical upgrades. The home also features generous living spaces, supporting comfortable day-to-day use for tenants or owner-occupants.

    Located in Auburn, the property is described as being close to amenities, with an off-street parking arrangement for easier access. The seller notes the duplex is being offered without the adjacent extra lot, which may be important for buyers comparing it to listings that include that additional parcel.

    As a two-family setup, this property can work well for owner-occupants seeking rental income alongside their own residence, or for investors looking for a straightforward residential income asset. The listing also highlights the potential to expand into the walk-up attic, subject to confirmation of any plans with the code office. With multiple updates already completed, it presents a practical option for buyers who want a functional, ready-to-use duplex while retaining an avenue to consider future space reconfiguration.

    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 $31.1k $14.28
    − Vacancy −$414 −$0.19
    EGI $30.7k $14.09
    − OpEx −$9.2k −$4.23
    NOI $21.5k $9.86
    2,178 SF · lease $14.28/SF/yr · vacancy 1.33% · expense 30.00%

    Alternative Uses

    Best Use
    Multifamily LT 5
    $306.9K
    $268.5K – $358.0K (±1% cap)
    NOI $21,482 @ 7.0% cap · market cap 5.51%
    Second Best
    Apartment 5plus
    $291.6K
    $255.1K – $340.2K (±1% cap)
    NOI $20,410 @ 7.0% cap · market cap 5.23%
    Theoretical Best
    Warehouse
    $3.87M
    $3.38M – $4.51M (±1% cap)
    NOI $270,780 @ 7.0% cap · market cap 69.45%
    Zoning and permitted uses should be independently verified with local authorities.
    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 Skin Care Clinic

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

    Location Insight

    • Map
    • Local Demand
    City
    Auburn
    County
    Androscoggin
    State
    Maine
    Longitude
    -70.2205282
    Latitude
    44.084808

    FAQs

    What type of property is this?
    Duplex - Updated two-unit duplex with in-unit laundry, off-street parking, and three-bedroom layouts suited to multiple living arrangements.
    Where is this duplex located?
    The property is located at 86 B 4th Street Auburn, ME.
    What is the asking price?
    The asking price for this property is $389,900.
    What are key features of this property?
    This property features: Updated 2‑unit duplex built in 1889 with 3 floors and 2 total bathrooms; Two residential units with in‑unit laundry and three‑bedroom layouts; Off‑street parking available; porch included
    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