This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/23
$525,000 New to Website
This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/23
Property Description
Great low maintenance all brick ranch duplex in N. Longmont. Unit 127 is vacant for easy showings. Unit 125 can be seen once under contract. Both units are 3 bedrooms and1 bath. Unit 127 has a huge fenced yard with direct access.
Full Property Details
Full Property Details for 125 21st Ave
General
- Price: $525,000
- Taxes: $3,102 (2025)
- Status: Active
- Type: Multi-Family
- Source: IRES
- MLS ID: 1056343
- Updated: 4/13/2026
- Added to Site: 2 day(s) ago
Interior
- Appliances: Electric Range, Refrigerator
Parking
- Total Spaces: 4
Location
- Area: Longmont
- County: Boulder
- Subdivision: Lanyon Park Estates
- Driving Directions: From Main St and 21st Ave, go east on 21st Ave toproperty on the right.
School Information
- School District: ST Vrain Dist RE 1J
- Elementary School: Timberline
- Middle School: Timberline
- High School: Skyline
Heating & Cooling
- Heating Type: Forced Air
Utilities
- Gas: Yes
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utility Description: Natural Gas Available, Electricity Available
Structural Information
- Construction: Brick
- Exterior Const.: Brick
- Basement Desc.: None
- Roof: Composition
- Windows: Window Coverings
- Square Feet: 1,846
- Sq. Ft. Source: Assessor
- Year Built: 1972
Additional Structures
- Other Structures: Storage
Lot Features
- Lot Size (Acres): 0.17
- Lot Size (Sq. Ft.): 7,541
- Fence: Yes
- Lot Features: Paved
- Potential Use: Multi-Family
- Zoning: MF
- Fencing (Description): Chain Link
Financial Considerations
- Operating Expenses: $3,102
- Tax Amount: $3,102
- Tax Year: 2025
- Terms: Cash, Conventional, 1031 Exchange
- Tenant Pays: Deposit
Disclosures and Reports
- Special Conditions: Private Owner
- Exclusions: Tenants personal property
- Property ID: R0068346
Listed by Compass - Boulder (303) 487-5472
Get Pre-Approved Today
Schools
Schools serving 125 21st Ave
School District:St. Vrain Valley School District Re 1j
| Name | Grades | Distance |
|---|---|---|
Timberline Pk-8 233 East Mountain View Avenue, Longmont, CO 80504 | PK-5 | 1.2 mi |
Skyline High School 600 East Mountain View, Longmont, CO 80501 | 9-12 | 1.2 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 125 21st Ave
Date
Details
Price
Change
Source
4/13/2026
Listed
$525,000
150%
MLS
6/05/2009
Sold
$210,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 125 21st Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$3,102
20%
$29,550
10%
2024
$2,577
1%
$26,941
-12%
2023
$2,542
13%
$30,626
35%
2022
$2,245
-3%
$22,684
-5%
2021
$2,324
—
$23,852
4%
2021
$2,324
27%
$22,873
19%
2018
$1,826
1%
$19,224
—
2017
$1,801
-18%
$19,224
-16%
2019
$2,187
37%
$22,873
37%
2016
$1,599
5%
$16,724
—
2015
$1,523
6%
$16,724
9%
2014
$1,431
—
$15,371
—
2013
$1,436
—
$15,371
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 125 21st Ave
125 21st Ave, Longmont, CO 80501 (MLS# 1056343) is a Multi-Family property with 2 units containing 0 bedrooms and 0 full bathrooms. 125 21st Ave is currently listed for $525,000 and was received on April 13, 2026. Want to learn more about 125 21st Ave? Do you have questions about finding other Multi-Family real estate for sale in Longmont? You can browse all Longmont real estate or contact a Coldwell Banker agent to request more information.

