487 Arthur Rd is a 1,404 square foot house on a 8,276 square foot lot with 2 bedrooms and 2 bathrooms. - it last sold on November 08, 1994 for $80,000. Based on Redfin's Martinez data, we estimate the home's value is $644,275.
Single-familyProperty Type
1940Year Built
8,276 sq ftLot Size
$459Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$644,275
$564K since sold in November 1994$26K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 23.3% lower than the average sale price ($840K) 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.
Permits
Oct 27, 2014 • Final
Building - residential solar photovoltaic
Install a roof-mounted solar photovoltaic system with an Enphase inverter.
Electrical
Solar
Jan 30, 2010 • Final
Building/residential/al/alteration
Apply stucco to a single-family home.
Remodel
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
Room Information
# of Rooms: 5
Exterior
Property Information
Subdivision Name: LAS JUNTAS RHO
Living Sq. Ft: 1,404
Ground Floor Sq. Ft: 1,404
Building Sq. Ft: 1,404
# of Stories: 1
Legal Description: RO LAS JUNTAS
Parking & Garage Information
Garage/Parking Sq. Ft: 180
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,276
Acres: 0.19
Zoning Code: R-6
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,404
Stories: 1.0
Lot Size: 8,276 square feet
Style: Single Family Residential
Year Built: 1940
Year Renovated: 1940
County: Contra Costa County
APN: 3800700027
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Las Juntas Elementary School
Public K-5 • Assigned • 0.4mi
5/10
Martinez Junior High School
Public 6-8 • Assigned • 2.3mi
7/10
Alhambra Senior High School
Public 9-12 • Assigned • 2.6mi
8/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
4/10 Heat Factor
7 days above 98° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
13 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Martinez, CA • 94553
Average low and high temperatures (°F)
60
43
62
45
70
49
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49
77
53
80
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80
56
87
59
84
59
78
56
64
49
56
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$613,000 – $741,000
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