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480 Riverside Street, Portland, ME, 04103
Flex Warehouse with Office Space

480 Riverside Street Portland, ME 04103

New
For Sale
$1,500,000

COMMERCIAL - Portland, ME

Property Size6,020 SF
Lot Size1.46 Acres
Price / SF$249.17
Days on Market1

Property Features for 480 Riverside Street

General Information

Property type
Commercial Sale
Property subtype
Other
Zoning
IM
Standard status
Active
Size
6,020 SF
Lot size
1.46 Acres

Taxes and HOA fees

Tax Year
2024
Tax Annual Amount
9920

Building Details

Year built
1986
Roof type
Membrane
Listing Agency: Keller Williams Realty
Listed By: Kevin Coyne
Added: Jul 24 Last Checked: Jul 24 at 10:06PM
MLS# 1673422

Copyright © 2026 Maine Listings. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.


Investment Insights

Based on property information with market context.

This flex warehouse property combines functional office space with warehouse support areas. The building includes office space, a conference room, a kitchen, a utility room, a server room, and a mezzanine area, along with dedicated warehouse space. The overall layout is adaptable for an owner-occupied setup or potential multi-tenant use.

The site is zoned IM and sits on 1.46 acres in Portland, Maine, at 480 Riverside Street. The property totals 6,020 square feet.

With both workplace improvements and warehouse space in place, the building is designed to support day-to-day operations from within the same structure.

Key Highlights

  • Built in 1986
  • Roof type: membrane
  • Includes office space, a conference room, kitchen, warehouse space, and utility room

Financial Insights For Office B

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 $131.5k $21.84
− Vacancy −$16.6k −$2.75
EGI $114.9k $19.09
− OpEx −$28.7k −$4.77
NOI $86.2k $14.32
6,020 SF · lease $21.84/SF/yr · vacancy 12.60% · expense 25.00%

Alternative Uses

Best Use
Office B
$1.23M
$1.08M – $1.44M (±1% cap)
NOI $86,183 @ 7.0% cap · market cap 5.75%
Second Best
Warehouse
$668.2K
$584.7K – $779.6K (±1% cap)
NOI $46,777 @ 7.0% cap · market cap 3.12%
Theoretical Best
Office A
$1.65M
$1.45M – $1.93M (±1% cap)
NOI $115,822 @ 7.0% cap · market cap 7.72%
Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

New England Communications Telecommunications Service

Suggested Use

Real Estate Agency Law Firm Dental Office Restaurant Spa & Massage Center Parking Lot & Garage Nail Salon Hair Salon Furniture & Home Goods Skin Care Clinic

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

FAQs

What type of property is this?
Flex space - Flex warehouse includes office space, conference room, kitchen, and warehouse area within a mezzanine layout.
Where is this flex space located?
The property is located at 480 Riverside Street Portland, ME.
What is the asking price?
The asking price for this property is $1,500,000.
What are key features of this property?
This property features: Built in 1986; Roof type: membrane; Includes office space, a conference room, kitchen, warehouse space, and utility room
More about this property
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