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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 |
| SATELLITE VIEW |
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This IDX solution is (c) Diverse Solutions 2026.
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