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321 Main Street offers a rare opportunity to own a piece of Longmont history. This mixed-use commercial/residential building has been home to many of Longmont's most beloved businesses, including, most recently, a popular donut shop. The ground level offers a completely turnkey kitchen/restaurant space built out in 2022 and meticulously maintained ever since. The second level offers a 2-bedroom, 1-bathroom residential unit. There is also full-height basement for storage and an alley-facing garage unit. Building will be delivered vacant, ready for an owner-user, investor, or live/work buyer. *SF to be verified by buyer.

DAYS ON MARKET 1 LAST UPDATED 7/13/2026
TRACT Longmont Ot YEAR BUILT 1870
COMMUNITY Longmont COUNTY Boulder
STATUS Active PROPERTY TYPE(S) Commercial


ADDITIONAL DETAILS
AIR Central Air
AIR CONDITIONING Yes
AREA Longmont
BASEMENT Partial, Yes
CONSTRUCTION Brick, Frame
HEAT Forced Air
HOA DUES |
LOT 3485 sq ft
LOT DIMENSIONS 3358
SUBDIVISION Longmont Ot
TAXES 2007
WATER Public
MORTGAGE CALCULATOR
   

TOTAL MONTHLY PAYMENT

0
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*Estimate only

SATELLITE VIEW



 
CONTACT US ABOUT 321 MAIN ST
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Listing provided by Todd Walsh, Market Real Estate, 3034445040
Last updated: 7/14/26 2:06 AM PDT

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This IDX solution is (c) Diverse Solutions 2026.