$350,000
●
House -
Off Market
850 20th St #203
Boulder, CO 80302
1 Bed
1 Bath
672 Ft²
$2,384
Est. Monthly
$500
HOA / Fees
1.81%
Cap Rate
About This Property
This great, affordable 1BR/1BA condo is perfectly located in quiet
and sought after San Marco North at just a stone's throw from CU
campus and convenient to Chautauqua, trails, The Hill and Downtown
Boulder. The 9x9 patio offers extended living space and a nice
peek-a-boo view of the Flatirons. Amenities include: Secure entry
to the building, elevator, storage locker in lower level, one
reserved parking space and a common roof top Terras with
million-dollar views of both Boulder City Lights and the Flatirons.
HOA dues include heat and water/sewer. Ready for quick closing and
possession. Sorry, no pets allowed in this building.
Unit Size
672 Ft²
Days on Market
-
Land Size
-
Price per sqft
$521
Property Type
House
Property Taxes
$165
HOA Dues
$500
Year Built
-
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Cap Rate Calculator
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Cap Rate
100% Occupancy
N/A (extreme outlier) What does this mean?
Based on our analysis, the cap rate of this property is 1.25%. A negative cap rate indicates that the property might not be feasible as an income-producing asset. The median cap rate for a near zip code 11238 is 4.23%.
How much can I actually make?
Actual monthly rental income may vary between $4,760 and $7,140 depending on unit-specific characteristics. You can change the amount using the slider to further explore.
How is cap rate calculated?
Cap Rate = Net Operating Income (NOI) / Property Asset Value.
When calculating the cap rate, we assume 100% occupancy. Leverage (mortgage) is not considered.
Cap Rate provided by RealtyHop and RentHop, learn more about cap rate here.
Last updated: 2 years ago (REcolorado MLS #7478084)
Price History
| Date / Event | Date | Event | Price |
|---|---|---|---|
| Jul 8, 2026 | Sold | ||
| Sold | |||
| Jun 4, 2026 | In contract | - | |
| In contract | |||
| May 12, 2026 | Listed | $320,000 | |
| Listed | |||
   | |||
|
This 1BR/1BA condo is perfectly located in the quiet and secure San Marco North building at just a stone's throw from CU campus and convenient to Chautauqua, trails, The Hill and Downtown Boulder. The 9x9 covered patio extends the living space and offers peek-a-boo views of the Flatirons. Amenities include; secure entry to the building, elevator, common laundry, storage locker in lowest level, one reserved parking space and a common roof top Terras with breathtaking views of both Boulder City Lights and the Flatirons. HOA dues include heat and water/sewer. Current tenant is on a month-to month lease. No pets are allowed in this building. Priced to be sold in AS-IS condition. Overnight notice required for showings.
| |||
| Oct 2, 2025 | No longer available | - | |
| No longer available | |||
| Jul 25, 2025 | Withdrawn | - | |
| Withdrawn | |||
Show More
Property Highlights
Elevator
Garage
Parking Details
Has Garage
Garage Spaces: 1
Interior Details
Full Bathrooms: 1
Appliances: Dishwasher, Refrigerator, Microwave, Disposal
Exterior Details
Has Property Attached
Square Footage: 672
Square Footage Source: $0
Security Features: Smoke Detector(s)
Property Condition: Not New, Previously Owned
Architectural Style: Ranch
Year Built: 1967
Building Area Total: 672
Levels: One
Building Area Units: Square Feet
Window Features: Window Coverings
Construction Materials: Wood/Frame
Pool is Private
Lot Size Units: Square Feet
Water Source: City Water
Financial Details
Tax Annual Amount: $1,976
Utilities Details
Heating Type: Hot Water
Sewer : Public Sewer, City Sewer
Location Details
HOA/Condo/Coop Fee Includes: Trash, Snow Removal, Maintenance Structure, Water/Sewer, Heat, Hazard Insurance
HOA Fee: $500
HOA Fee Frequency: Monthly
Comparables
Unit
Status
Status
Type
Beds
Baths
ft²
Price/ft²
Price/ft²
Asking Price
Listed On
Listed On
Closing Price
Sold On
Sold On
HOA + Taxes
Past Sales
| Date | Unit | Beds | Baths | Sqft | Price | Closed | Listed By |
|---|---|---|---|---|---|---|---|
|
09/10/2026
|
1 Bed
|
1 Bath
|
720 ft²
|
$375,000
1 Bed
1 Bath
720 ft²
|
-
-
|
Hallie Rand
Coldwell Banker Realty 24
| |
|
05/12/2026
|
1 Bed
|
1 Bath
|
672 ft²
|
$320,000
1 Bed
1 Bath
672 ft²
|
$320,000
07/08/2026
|
Rene Vellinga
RE/MAX Alliance-Boulder
| |
|
04/02/2026
|
1 Bed
|
1 Bath
|
709 ft²
|
$400,000
1 Bed
1 Bath
709 ft²
|
-
-
|
Janet Leap
RE/MAX of Boulder, Inc
| |
|
03/16/2026
|
2 Bed
|
1 Bath
|
930 ft²
|
$650,000
2 Bed
1 Bath
930 ft²
|
-
-
|
John McElveen
milehimodern - Boulder
| |
|
07/22/2025
|
1 Bed
|
1 Bath
|
672 ft²
|
$395,000
1 Bed
1 Bath
672 ft²
|
$390,000
-1.27%
08/22/2025
|
Janet Leap
RE/MAX of Boulder, Inc
| |
|
06/08/2025
|
1 Bed
|
1 Bath
|
672 ft²
|
$500,000
1 Bed
1 Bath
672 ft²
|
-
-
|
Meghan O'Quinn
HomeSmart Realty
| |
|
06/07/2025
|
1 Bed
|
1 Bath
|
720 ft²
|
$395,000
1 Bed
1 Bath
720 ft²
|
$378,000
-4.30%
07/28/2025
|
Janet Leap
RE/MAX of Boulder, Inc
| |
|
05/29/2025
|
1 Bed
|
-
|
728 ft²
|
$425,000
1 Bed
-
728 ft²
|
$400,000
-5.88%
06/16/2025
|
Katie Robinson
RE/MAX Alliance
| |
|
05/29/2025
|
1 Bed
|
1 Bath
|
672 ft²
|
$375,000
1 Bed
1 Bath
672 ft²
|
-
-
|
Rene Vellinga
RE/MAX Alliance-Boulder
| |
|
08/13/2024
|
2 Bed
|
1 Bath
|
995 ft²
|
$520,000
2 Bed
1 Bath
995 ft²
|
$580,000
+11.54%
09/16/2024
|
Mark Bosley
RE/MAX Alliance-Boulder
| |
|
01/27/2024
|
1 Bed
|
1 Bath
|
672 ft²
|
$400,000
1 Bed
1 Bath
672 ft²
|
$375,000
-6.25%
03/15/2024
|
Thomas Precourt
RE/MAX Alliance on Walnut
| |
|
02/03/2022
|
1 Bed
|
1 Bath
|
672 ft²
|
$395,000
1 Bed
1 Bath
672 ft²
|
$405,000
+2.53%
03/15/2022
|
Jillian Fowler
The Agency - Boulder
| |
|
11/29/2021
|
1 Bed
|
1 Bath
|
728 ft²
|
$375,000
1 Bed
1 Bath
728 ft²
|
$367,597
-1.97%
01/04/2022
|
Jillian Fowler
The Agency - Boulder
| |
|
03/10/2021
|
2 Bed
|
2 Bath
|
930 ft²
|
$475,000
2 Bed
2 Bath
930 ft²
|
$475,000
08/02/2021
|
Janet Leap
RE/MAX of Boulder, Inc
| |
|
03/09/2021
|
2 Bed
|
2 Bath
|
930 ft²
|
$495,000
2 Bed
2 Bath
930 ft²
|
$490,000
-1.01%
05/10/2021
|
Marybeth Emerson
The Agency - Boulder
| |
|
04/15/2019
|
2 Bed
|
2 Bath
|
995 ft²
|
$489,900
2 Bed
2 Bath
995 ft²
|
-
-
|
-
| |
|
04/19/2019
|
1 Bed
|
1 Bath
|
571 ft²
|
$320,000
1 Bed
1 Bath
571 ft²
|
-
-
|
-
| |
|
11/27/2018
|
1 Bed
|
1 Bath
|
720 ft²
|
$310,000
1 Bed
1 Bath
720 ft²
|
-
-
|
-
| |
|
01/14/2018
|
1 Bed
|
1 Bath
|
720 ft²
|
$305,000
1 Bed
1 Bath
720 ft²
|
$298,500
-2.13%
03/30/2018
|
Jerry Malia
Century 21 Bear Facts Realty
| |
|
06/07/2017
|
2 Bed
|
2 Bath
|
860 ft²
|
$374,900
2 Bed
2 Bath
860 ft²
|
$389,000
+3.76%
07/18/2017
|
Martin Mata
Redfin Corporation
| |
|
04/18/2017
|
1 Bed
|
1 Bath
|
728 ft²
|
$300,000
1 Bed
1 Bath
728 ft²
|
$305,000
+1.67%
05/12/2017
|
Kelly Moye
Compass - Denver
| |
|
05/18/2016
|
1 Bed
|
1 Bath
|
728 ft²
|
$279,900
1 Bed
1 Bath
728 ft²
|
$295,000
+5.39%
06/08/2016
|
Brad Klein
8z Real Estate
| |
|
03/24/2016
|
2 Bed
|
2 Bath
|
995 ft²
|
$365,000
2 Bed
2 Bath
995 ft²
|
$425,000
+16.44%
04/11/2016
|
Sibyl Liedtke
milehimodern - Boulder
| |
|
04/09/2014
|
2 Bed
|
2 Bath
|
962 ft²
|
$269,000
2 Bed
2 Bath
962 ft²
|
$250,000
-7.06%
08/20/2014
|
John McElveen
milehimodern - Boulder
| |
|
05/14/2013
|
2 Bed
|
2 Bath
|
930 ft²
|
$250,000
2 Bed
2 Bath
930 ft²
|
$245,000
-2.00%
03/26/2014
|
Sue Iten
MB/Iten Realty Inc.
| |
|
04/09/2013
|
2 Bed
|
2 Bath
|
930 ft²
|
$299,900
2 Bed
2 Bath
930 ft²
|
$285,000
-4.97%
08/28/2013
|
Joel Ripmaster
Madison & Company Properties - Boulder
|
Building Info
About Central Boulder
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Listed by: Rene Vellinga, RE/MAX Alliance
Last Updated: 2 years ago
Data Source: REcolorado MLS, MLS# 7478084
© 2026 REcolorado® All rights reserved. Certain information contained herein is derived from information which is the licensed property of, and copyrighted by, REcolorado®. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed.
Last Updated: 2 years ago
Data Source: REcolorado MLS, MLS# 7478084
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