42 Mountain King Rd is a 1,320 square foot house on a 6.96 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Boulder data, we estimate the home's value is $701,694.
Single-familyProperty Type
1981Year Built
6.96 acresLot Size
$532Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$701,694
$1,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6% lower than the average sale price ($747K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$3,542 (+3.6%)
$21,081 + $23,347
$44,428
2024
$3,417 (+1.8%)
$21,081 + $23,347
$44,428
2023
$3,356 (+22.7%)
$16,837 + $29,921
$46,758
2022
$2,736 (+5.5%)
$20,522 + $29,921
$50,443
2021
$2,593 (+19.8%)
$16,819 + $20,435
$37,254
2020
$2,165 (+1.6%)
$17,303 + $21,024
$38,327
2019
$2,130 (−6.8%)
$9,081 + $23,796
$32,877
2018
$2,286 (+3.0%)
$9,081 + $23,796
$32,877
2017
$2,219 (+26.5%)
$5,472 + $22,140
$27,612
2016
$1,754 (+6.1%)
$5,472 + $22,140
$27,612
2015
$1,653 (+2.0%)
$3,741 + $17,440
$21,181
2014
$1,620 (+16.4%)
$6,519 + $12,808
$19,327
2013
$1,392 (+13.7%)
$6,519 + $12,808
$19,327
2012
$1,225 (+21.5%)
$5,737 + $11,268
$17,005
2011
$1,008 (−56.1%)
$5,086 + $9,990
$15,076
2010
$2,295 (+6.8%)
$4,504 + $8,843
$13,347
2009
$2,149
$20,300 + $9,990
$30,290
Tax history for 42 Mountain King Rd
Year
Property tax
Land + Additions
Assessment*
2025
$3,542 (+3.6%)
$21,081 + $23,347
$44,428
2024
$3,417 (+1.8%)
$21,081 + $23,347
$44,428
2023
$3,356 (+22.7%)
$16,837 + $29,921
$46,758
2022
$2,736 (+5.5%)
$20,522 + $29,921
$50,443
2021
$2,593 (+19.8%)
$16,819 + $20,435
$37,254
2020
$2,165 (+1.6%)
$17,303 + $21,024
$38,327
2019
$2,130 (−6.8%)
$9,081 + $23,796
$32,877
2018
$2,286 (+3.0%)
$9,081 + $23,796
$32,877
2017
$2,219 (+26.5%)
$5,472 + $22,140
$27,612
2016
$1,754 (+6.1%)
$5,472 + $22,140
$27,612
2015
$1,653 (+2.0%)
$3,741 + $17,440
$21,181
2014
$1,620 (+16.4%)
$6,519 + $12,808
$19,327
2013
$1,392 (+13.7%)
$6,519 + $12,808
$19,327
2012
$1,225 (+21.5%)
$5,737 + $11,268
$17,005
2011
$1,008 (−56.1%)
$5,086 + $9,990
$15,076
2010
$2,295 (+6.8%)
$4,504 + $8,843
$13,347
2009
$2,149
$20,300 + $9,990
$30,290
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
F
Forestry District
Rural areas established for the purpose of efficiently using land to conserve forest resources, protect the natural environment, and preserve open areas.
Permitted uses
Include but are not limited to:
Agriculture
Equestrian facility
Livestock production
Housing-Group
Housing-Single unit
Bed & breakfast
Office
Public service
Communications tower
Park & open space
Property details
Interior
Bathroom Information
# of Full Baths: 1
Room Information
# of Rooms: 4
Exterior
Exterior Information
Physical Condition: Average
Construction Type: Frame
Building Construction Quality: Average
Exterior Wall: Frame Wood
Building Type: Single Family
Property Information
Subdivision Name: SUGARLOAF AREA
Living Sq. Ft: 1,320
Ground Floor Sq. Ft: 848
Building Sq. Ft: 1,320
Stories Type: 2 Plus
Legal Description: GOLD KING NO 5 & PT LOOKOUT LD & PT GOVT LOT 78 SUGARLOAF PER DEED 454789 7/81 BCR
Lot Information
# of Buildings: 2
Land Sq. Ft: 303,290
Legal Lot Number: 78
Municipality Name: MOUNTAIN
Acres: 6.9626
Zoning Code: F
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Tax Area: RE2-SLFPD
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,320
Stories: —
Lot Size: 6.96 acres
Style: Single Family Residential
Year Built: 1981
Year Renovated: 1981
County: Boulder County
APN: R0028357
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
Flatirons Elementary School
Public K-5 • Assigned • 5.8mi
8/10
Casey Middle School
Public 6-8 • Assigned • 5.9mi
5/10
Boulder High School
Public 9-12 • Assigned • 6.2mi
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
5/10 Fire Factor
5% chance of being in a wildfire in next 30 years
1/10 Heat Factor
0 hot days expected this year, 0 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Boulder, CO • 80302
Average low and high temperatures (°F)
37
18
45
25
54
34
54
34
60
41
74
53
81
60
78
58
70
50
62
42
49
32
47
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.1 hours in
June and 6 hours in December, placing it above the
U.S. average for solar exposure.
10.1 hrs
6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$667,000 – $807,000
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