421 Mapleton Ave #A
Boulder, CO 80304
Mapleton Hill- 1 Bed
- 1 Bath
- 618 sqft (on 0.54 acres)
1 Bed
1 Bath
618 sqft
(on 0.54 acres)
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1906
Lot Size
0.54 acres
Living Area
618 sqft
Price/Sqft
$1,176/sqft
Parking
Garage
HOA
$645/Monthly
About this House
Property sold off-market. Entered into MLS for comp purposes only.
421 Mapleton Ave #A, Boulder, CO 80304 is a 1 bedroom, 1 bathroom, 618 sqft single-family home in Mapleton Hill, built in 1906. It last sold for the $727,000 asking price on Jul 24, 2026. It is currently off market. The Trulia Estimate is $726,800, with a rent estimate of $2,257/month.
Home Details for 421 Mapleton Ave #A
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Interior Details Basement: NoneNumber of Rooms: 2Types of Rooms: Primary Bedroom, Kitchen |
Beds & Baths Number of Bedrooms: 1Number of Bathrooms: 1Number of Bathrooms (full): 1Number of Bathrooms (main level): 1 |
Dimensions and Layout Living Area: 618 Square Feet |
Appliances & Utilities Utilities: Natural Gas Available, Electricity Available, High Speed AvailAppliances: Gas Range, Dishwasher, Refrigerator, Microwave, DisposalDishwasherDisposalMicrowaveRefrigerator |
Heating & Cooling Heating: Radiant,Individual Heat SourceHas CoolingAir Conditioning: Wall/Window Unit(s)Has HeatingHeating Fuel: Radiant |
Gas & Electric Has Electric on Property |
Windows, Doors, Floors & Walls Window: Window Coverings |
Levels, Entrance, & Accessibility Stories: 1Levels: OneEntry Location: 1st Floor |
View No View |
Security Security: Fire Alarm |
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Exterior Home Features Roof: Flat |
Parking & Garage Number of Garage Spaces: 1Number of Covered Spaces: 1Other Parking: DetachedNo CarportHas a GarageNo Attached GarageParking Spaces: 1Parking: Detached |
Frontage Not on Waterfront |
Farm & Range Does Not Include Irrigation Water Rights |
Finished Area Finished Area (above surface): 618 Square Feet |
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Year Built Year Built: 1906 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceArchitecture: Legal Conforming |
Building Construction Materials: BrickNot a New ConstructionAttached To Another Structure |
Property Information Parcel Number: R0140895 |
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Price List Price: $727,000Price Per Sqft: $1,176/sqft |
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MLS Status: Sold |
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Direction & Address City: BoulderCommunity: Mapleton Ave Condo |
School Information Elementary School: WhittierJr High / Middle School: CaseyHigh School: BoulderHigh School District: Boulder Valley Dist RE2 |
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Building Area Building Area: 618 Square Feet |
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Community Features: Community Laundry |
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HOA Fee Includes: Common Amenities, Trash, Snow Removal, Maintenance Grounds, Management, Exterior MaintenanceHOA Name: Mapleton CondosHOA Phone: 440-539-1078Has an HOAHOA Fee: $645/Monthly |
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Lot Area: 0.54 acres |
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Special Conditions: Private Owner |
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Listing Terms: Cash |
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Mls Number: 1065010Attribution Contact: 440-539-1078Above Grade Unfinished Area: 618Activation Date: Fri Jul 24 2026 |
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Community Laundry |
Last check for updates: about 8 hours ago
Listed by John Kinney, (440) 539-1078
Homestead Real Estate, LLC
Bought with: John Kinney, (440) 539-1078, Homestead Real Estate, LLC
Source: IRES as distributed by MLS GRID, MLS#1065010

Price History for 421 Mapleton Ave #A
| Date | Price | Event | Source |
|---|---|---|---|
| 07/24/2026 | $727,000 | Sold | IRES as distributed by MLS GRID #1065010 |
| 10/17/2024 | $605,000 | Sold | N/A |
| 04/18/2024 | $605,000 | Sold | IRES as distributed by MLS GRID #997643 |
| 04/05/2024 | $699,000 | Pending | REcolorado as distributed by MLS GRID #IR997643 |
| 11/03/2023 | $699,000 | PriceChange | IRES as distributed by MLS GRID #997643 |
| 10/06/2023 | $750,000 | Listed For Sale | REcolorado as distributed by MLS GRID #IR997643 |
| 02/15/2001 | $290,050 | Sold | N/A |
Market trends in Boulder
Last updated June 2026
Avg. sale price
$891K
$60.83KMoM
Sale-to-List Price
98.2%
0.4%MoM
Price per sq ft
$503
$2MoM
Available listings
778
Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $3,110 |
| Assessment | $689,700 |
Home facts updated by county records
Comparable Sales for 421 Mapleton Ave #A
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.33 | Single-Family Home | $690,000 | 09/25/25 | 2 | 1 | 790 | |
0.39 | Single-Family Home | $585,000 | 04/02/26 | 1 | 1 | 720 | |
0.17 | Single-Family Home | $1,150,000 | 10/30/25 | 3 | 1 | 1,170 | |
0.77 | Single-Family Home | $300,000 | 10/10/25 | 1 | 1 | 469 | |
0.32 | Single-Family Home | $325,000 | 08/06/26 | 1 | 1 | 442 | |
0.59 | Single-Family Home | $1,000,000 | 05/22/26 | 2 | 1 | 671 | |
0.45 | Single-Family Home | $1,000,000 | 04/07/26 | 2 | 1 | 1,122 | |
0.99 | Single-Family Home | $360,000 | 11/26/25 | 1 | 1 | 449 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 421 Mapleton Ave #A.
What Locals Say about Mapleton Hill
At least 9 Trulia users voted on each feature.
100 % Say it's walkable to restaurants
100 % Say there are sidewalks
95 % Say it's dog friendly
90 % Say it's walkable to grocery stores
84 % Say yards are well-kept
82 % Say people would walk alone at night
78 % Say kids play outside
75 % Say there's wildlife
67 % Say there's holiday spirit
67 % Say parking is easy
67 % Say there are community events
64 % Say it's quiet
63 % Say they plan to stay for at least 5 years
57 % Say neighbors are friendly
56 % Say streets are well-lit
29 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Apartments for Rent
Homes for sale near 421 Mapleton Ave #A
Off Market Homes Near 421 Mapleton Ave #A
Frequently asked questions about 421 Mapleton Ave #A
- What is 421 Mapleton Ave #A estimated to be worth?Trulia's estimated value for 421 Mapleton Ave #A in Boulder, CO is $726,800.
- What is the price history for 421 Mapleton Ave #A?421 Mapleton Ave #A in Boulder, CO last sold for $727,000 in July 2026.
- Is Boulder a buyer's or seller's market?Boulder is currently a balanced market, based on recent for-sale activity.
- What's the median sale price in Boulder?The median sale price in Boulder is $891K. That is down $60.83K from the prior month.
- Does 421 Mapleton Ave #A have air conditioning?Yes, 421 Mapleton Ave #A in Boulder, CO has air conditioning.
- Does 421 Mapleton Ave #A have laundry facilities?Yes, 421 Mapleton Ave #A in Boulder, CO has laundry facilities.

Based on information submitted to the MLS GRID as of 2026-08-09 09:48:18 PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information