2303 Mapleton Ave is a 1,796 square foot house on a 3,767 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on September 19, 1995 for $364,000. Based on Redfin's Boulder data, we estimate the home's value is $1,441,199.
Single-familyProperty Type
1907Year Built
3,767 sq ftLot Size
$802Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,441,199
$1.1M since sold in September 1995$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.1% higher than the average sale price ($1.44M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RMX-1
Residential-Mixed 1 District
Mixed density residential areas with a variety of single-family, detached, duplexes, and multi-family units that will be maintained; and where existing structures may be renovated or rehabilitated.
Permitted uses
Include but are not limited to:
Religious facility
Housing-Single unit
Housing-Multiple units
Educational/school
Recreation
Agriculture-Cropland
Park & open space
Nov 17, 2025 • Final
Mechanical - hvac with electrical
Electrical
HVAC
Feb 18, 2025 • Final
Electrical / photovoltaic solar
Electrical
Ev charger
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 154
Basement Type: Unfinished
Bathroom Information
# of Full Baths: 1
# of 3/4 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Room Information
# of Rooms: 7
Exterior
Exterior Information
Physical Condition: Good
Construction Type: Masonry
Building Construction Quality: Good
Exterior Wall: Block/Brick
Roof Covering Type: Asphalt
Roof Shape Type: Asphalt
Building Type: Single Family
Property Information
Subdivision Name: BOULDER O T EAST & WEST & NORTH
Living Sq. Ft: 1,796
Ground Floor Sq. Ft: 1,050
Building Sq. Ft: 1,950
Stories Type: 2 Plus
Legal Description: S 66.82 FT LOT 7 & 10 FT STRP ADJ ON SOUTH BLK 184 BOULDER O T
Lot Information
# of Buildings: 1
Land Sq. Ft: 3,767
Legal Lot Number: 7
Legal Block Number: 184
Municipality Name: BOULDER
Acres: 0.0865
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Tax Area: RE2-BLDR-NCWD-UDFC
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,796
Stories: —
Lot Size: 3,767 square feet
Style: Single Family Residential
Year Built: 1907
Year Renovated: 1978
County: Boulder County
APN: R0005365
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
Whittier Elementary School
Public K-5 • Assigned • 0.2mi
6/10
Casey Middle School
Public 6-8 • Assigned • 0.7mi
5/10
Boulder High School
Public 9-12 • Assigned • 0.9mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
1% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 91° expected this year, 18 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
2/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Boulder, CO • 80304
Average low and high temperatures (°F)
44
22
51
29
63
40
64
40
70
47
83
57
86
62
84
60
79
54
67
45
54
33
53
33
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.5 hours in
June and 6 hours in December, placing it above the
U.S. average for solar exposure.
10.5 hrs
6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.37M – $1.66M
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