318-320 4th Avenue Longmont, CO $ 670,000
318-320 4th Avenue
$ 670,000
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318-320 4th Avenue

Longmont, CO, 80501
$ 670,000
Baths0.0 Sq 2,236

Monthly Estimate*

$ 4,125

Listed by RE/MAX Alliance-Boulder
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Studio

Multi-Family Home for sale in Longmont, CO

for $670,000. This 2,236 square foot home was built in 1955 on a lot size of 0.19.

Turnkey duplex opportunity in a convenient central Longmont location. This well-maintained side-by-side duplex features two identical units, offering a simple and efficient layout ideal for both investors and owner-occupants. Each residence provides comfortable living spaces with functional flow, making leasing and long-term maintenance straightforward. Major capital improvements add peace of mind, including a newer roof and newer HVAC systems, helping reduce near-term ownership expenses and improving overall efficiency. The mirrored floorplans create consistent rental appeal while simplifying property management and future updates. Positioned near downtown amenities, parks, and commuter routes, the property offers strong lifestyle convenience and long-term rental desirability. Whether you're building a portfolio or seeking a house-hack opportunity, this duplex presents a solid blend of stability, location, and income potential.

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Multi-Family Active

Price

$ 670,000

Bedrooms

Studio

Property Type

Multi-Family

Taxes

$ 3,071

Style

Lot Size

0.19

Year Built

1955

Town/City

Longmont

County/Region

Boulder

MLS | Web ID

IR1054371

Features
General
Sewer Public Sewer
Heating Forced Air
Utilities Electricity Available Natural Gas Available
Possession Closing/DOD
Roof Composition
Appliances Dishwasher
Zoning XLG
Construction Materials Brick
Exclusions Tenants possessions
Year Built 1955
Tenant Pays Electricity Gas Trash Collection
Levels One
Property Subtype Duplex
Tax Year 2025
Ownership Individual
Gross Income 0
County Boulder
Net Operating Income 51629
Operating Expense 5371
Property Type Residential Income
HOA N
Subdivision Name Longmont Ot
Status Active
High School Skyline
City Longmont
High School District St. Vrain Valley RE-1J
Number Of Units Total 2
Lot Size Square Feet 8104
Elementary School Columbine
Tax Annual Amount 3071
Middle/Junior High School Trail Ridge
Concessions No
Standard Status Active
Occupancy Type Tenant
Elementary School District St. Vrain Valley RE-1J
Cap Rate 7.7
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Interior
Basement Partial
Basement (Y/N) Y
Main Level Bedrooms 0
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Exterior
Water Source Public
Building Area Total 2236
Lot Size Acres 0.19
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Internal Only
Street Number 1 318
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* Excluded Features
List By
Re/Max Alliance-Boulder

Broker

(303) 543-5720

Phone

Affordability Calculator

$4,381
Per Month
94%
6%
0%
Monthly Principal & Interest
$4,125
Monthly Property Taxes
$256
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
1922568 Elementary School
910863 Middle School
Skyline High School High School
Pricing History
DatePricePrice ChangeDescription
3/20/2026$670,000 Listed Price

Map


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318-320 4th Avenue, Longmont, CO, 80501 is a Multi-Family Home for sale at $670,000 with 2,236 sqft and a lot size of 0.19. 318-320 4th Avenue is a studio with 0.0 baths and was built in 1955. The property's zip code is 80501 which is in Longmont, CO