Search
Waterfront Flex Space
For Sale
$200,000

428 Main Street, Calais, ME 04619

COMMERCIAL - Calais, ME

Property Size6,000 SF
Lot Size1.41 Acres
Price / SF$33.33
Days on Market48

Property Features for 428 Main Street

General Information

Property type Commercial Sale
Property subtype Other
Zoning Comm/Instituti
Rooms Basement
Basement Full
Lot features Business District, Near Shopping
Standard status Active
Size 6,000 SF
Lot size 1.41 Acres

Taxes and HOA fees

Tax Year 2024
Tax Annual Amount 2163

Utilities

Sewer type Public Sewer
Heating system Other (Heating)
Water source Public

Building Details

Year built 1900
Flooring type Concrete, Wood
Building materials Steel Frame, Asbestos, Wood Siding
Listing Agency: Due East Real Estate
Listed By: Melissa Small
Added: Jul 13 Changed: Aug 14 Last Checked: Aug 29 at 3:06AM
MLS# 1663737

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 6,000-square-foot flex space occupies a 1.41-acre parcel with a steel-frame structure dating to 1900. The building includes concrete and wood flooring, a basement, wood siding, and other heating. Its commercial/institutional zoning and adaptable interior may accommodate a variety of business operations, subject to applicable approvals.

The property is located at 428 Main Street in Calais, Maine, with nearly 200 feet of shore frontage along the St. Croix. Public water and public sewer serve the site. The waterfront setting and existing building provide a distinctive commercial property configuration for consideration by an owner-user or operator evaluating flexible space in the area.

Key Highlights

  • 6,000 SF flex space on a 1.41‑acre parcel
  • Nearly 200' of shore frontage on the St. Croix
  • Commercial/institutional zoning

Property Analytics

Current Use

Flex space

Suggested Use

Top Pick Real Estate Agency Dental Office HVAC Service Electrical Service Locksmith Furniture & Home Goods

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

286
Businesses Nearby
Balanced
Demand for This Use

Demographics for 04619, ME

3,079
Population
1,603
Households
1.9
Avg Household Size
45
Median Age
26%
College-Educated
87%
High-School Grad
34.3 sq mi
ZIP Area
90
Density / Sq Mi
$48,654
Median Household Income
$34,139
Median Earnings
$815
Median Rent
$111,800
Median Home Value

Market

Vacancy Rate% for Industrial in Northeast region

5.4% 2019
4.6% 2020
3.2% 2021
3.3% 2022
5.3% 2023
6.6% 2024
7.6% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Flex space - Commercial/institutional-zoned building with public water and sewer serving a range of business uses.
Where is this flex space located?
The property is located at 428 Main Street Calais, ME.
What is the asking price?
The asking price for this property is $200,000.
What are key features of this property?
This property features: 6,000 SF flex space on a 1.41‑acre parcel; Nearly 200' of shore frontage on the St. Croix; Commercial/institutional zoning
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