4540 Rock Rd is a 1,710 square foot house on a 52.86 acre lot with 3 bedrooms and 1 bathroom. Based on Redfin's Sumas data, we estimate the home's value is $1,238,868.
Single-familyProperty Type
1920Year Built
52.86 acresLot Size
$724Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,238,868
$50K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 108.6% higher than the average sale price ($594K) 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
AG
Agricultural District
The primary purposes of this district are to implement the agricultural designation of the Comprehensive Plan, established pursuant to RCW 36.70A.170, preserve, enhance and support the production of food and fiber in Whatcom County, to maintain a sufficiently large agricultural land base to ensure a viable agriculture industry and to maintain the economic feasibility of supporting services. Whatcom County supports agricultural activities as the highest priority use in the Agriculture District, with all other uses being subordinate to agricultural activities. Whatcom County seeks to minimize conflict with surrounding zoning districts, in conjunction with Chapter 14.02 WCC, Right to Farm. In order to limit the further fragmentation of the commercial agricultural land base, the Agriculture District includes smaller areas of land with poorer quality soils or nonagricultural uses, which do not meet the definition of agriculture lands of long-term commercial significance.; A secondary purpose of this district is to serve as a holding district when located within the urban growth area Comprehensive Plan designation to allow agricultural uses in the near term while protecting the area from suburban sprawl and preserving the potential for future urban development consistent with the protection of the resource land.
Permitted uses
Include but are not limited to:
Dairy
Livestock production
Housing-Single unit
Housing-Senior
Housing-Student
Agriculture-Cropland
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Wood
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Fair
Foundation Type: Concrete
Exterior Wall: Stucco
Building Type: Residential
Property Information
Living Sq. Ft: 1,710
Ground Floor Sq. Ft: 1,710
Building Sq. Ft: 1,710
# of Stories: 1
Stories Type: 1
Legal Description: SW SW-GOVT LOT 6-EXC ANY PTN N OF LI DAF-BEAP 653 FT S OF NE COR OF GOVT LOT 6-TH W TO SUMAS RIVER-LESS RD-SUBJ TO POWER LI ESMT DESC AF 738672-SUBJ TO PIPELINE ESMT DESC AF 770153-EXC PTN TO
Lot Information
# of Buildings: 2
Land Sq. Ft: 2,302,582
Legal Lot Number: 6
Municipality Name: 506 F14 EMS14
Acres: 52.86
Zoning Code: AG
County Use Description: OSAG DAIRY PRODUCTS
Financial
Assessor Information
Assessment Year: 2025
Tax District County: 506 F14 EMS14
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,710
Stories: 1.0
Lot Size: 52.86 acres
Style: Single Family Residential
Year Built: 1920
Year Renovated: —
County: Whatcom County
APN: 4104360771260000
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Sumas Elementary School
Public PreK-5 • Assigned • 0.9mi
6/10
Nooksack Valley High School
Public 7-12 • Assigned • 3.7mi
6/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
3/10 Heat Factor
7 days above 87° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 14 days in 30 years
Provided by First Street
Historical weather
Sumas, WA • 98295
Average low and high temperatures (°F)
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34
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40
62
43
68
49
73
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79
55
78
57
72
53
58
45
49
41
47
38
Jan
Feb
Mar
Apr
May
Jun
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Sun exposure
In this area, properties receive around 7 hours in
June and 1.6 hours in December, placing it below the
U.S. average for solar exposure.
7 hrs
1.6 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.18M – $1.43M
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