7 bedrooms and 5 bathroom single family house with attached 2 bedrooms and 1 bath in-law unit for sale. Some improvements and sq ft additions were done with city permit. Buyer is adviced to perform due diligence to determine the total square feet and room count. 1. First floor is equipped with attached 2 car garage, 1 bathroom, laundry room, large game room coverted into 2 bedrooms (not permitted), and a third car garage converted into 2 bedrooms and 1 bath (not permitted). 2. The upper floor is equipped with 3 bedrooms, 3 bathrooms, living room, family room, kitchen, and 1 bedroom addition (not permitted). 3. The in-law unit is equipped with 2 bedrooms, 1 bath and 1 Kitchenette addition (not permitted). In-law unit is currently rented for $2,000 per month. Property has income potential of $8,400 if fully rented.
Single-familyProperty Type
1980Year Built
5,400 sq ftLot Size
$263Price/Sq.Ft.
2 car garageParking
Listed by Olaleke Adeyanju•DRE #01377673• First Choice Funding & Realty
Mount Diablo Health Care District, located between Downtown Concord and the Todos Santos Plaza area, is a civic and medical Concord neighborhood with a campus-like street grid and a steady, daytime rhythm. The neighborhood’s character concentrates around the Willow Pass Road and Concord Avenue corridor, where clinics, small professional offices, and coffee counters create a practical, on-the-go atmosphere. John Muir Health, the Concord Pavilion, and the Contra Costa County Historical Society anchor local identity beyond the exam-room routine. Architecture leans mid-century institutional with pockets of older residential blocks nearby. Sidewalks and bus stops keep movement constant, while nearby parks and civic spaces add breathing room. The setting feels workday-focused, with after-hours calm and a clear connection to central Concord.
Provided by Walk Score and Local Logic
Offer insights
4250 Arthur Rd · $950,000
$991K and above
75% chance or better to win
Why $991K+ is a strong offer
DAYS ON MARKET
11 days
The average home goes pending in 26 days.
SALE-TO-LIST
102.3%
Most homes are selling 2% above list price.
About offer insights
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Interior features
Updated kitchen
Double pane windows
No steps to entry
Bonus room
Bedrooms
3 bedrooms (upper level)
Bathrooms
6 full bathrooms
Shower over tub in primary and other bathrooms
Kitchen
Stone counters
220 volt outlet
Dishwasher
Microwave
Updated kitchen
Laundry & utility
220 volt outlet
Washer/dryer hookups only
Flooring
Concrete
Hardwood
Carpet
Heating & cooling
Has heating
Central air
Exterior features
Back yard
Deck
Rectangular lot
Home design
Residential
Single family residence
Built in 1980
Parking
Attached garage
2 garage spaces
2 covered spaces
Construction
Wood siding
Slab foundation
Utilities
Public water
Public sewer
220 volts in kitchen
Electricity and solar
View estimated energy costs and solar savings for this home
bridgeMLS, Bay East AOR, or Contra Costa AOR #41150238
Oct 3, 2026
Listed
$950,000
$263/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40772927
Dec 13, 2017
Sold
$650,000
$180/sq ft
Oct 20, 2017
Pending
—
Jun 28, 2017
Price Changed
$665,500
$184/sq ft
Apr 16, 2017
Price Changed
$695,000
$193/sq ft
Mar 10, 2017
Listed
$749,000
$208/sq ft
PRICE REDUCTION TO $665K MOTIVATED SELLER BRING ALL OFFERS!!! OPEN HOUSE ON JULY 23RD FROM 1 TO 4PM
bridgeMLS, Bay East AOR, or Contra Costa AOR #40766964
Feb 25, 2017
Listing Removed
—
Public Records
Sep 2, 2003
Sold
$268,182
$74/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$9,703 (+4.7%)
$290,143 + $464,232
$754,375
2024
$9,268 (+2.2%)
$284,454 + $455,130
$739,584
2023
$9,068 (+2.5%)
$278,877 + $446,206
$725,083
2022
$8,851 (+3.5%)
$273,409 + $437,457
$710,866
2021
$8,551 (+1.2%)
$268,049 + $428,880
$696,929
2020
$8,451 (+1.8%)
$262,794 + $420,471
$683,265
2019
$8,299 (+4.2%)
$260,100 + $416,160
$676,260
2018
$7,961 (+35.5%)
$255,000 + $408,000
$663,000
2017
$5,874 (+14.9%)
$202,131 + $260,232
$462,363
2016
$5,112 (+0.7%)
$202,131 + $260,232
$462,363
2015
$5,074 (+1.3%)
$198,168 + $222,189
$420,357
2014
$5,007 (+0.7%)
$191,369 + $214,565
$405,934
2013
$4,974 (+3.1%)
$191,369 + $214,565
$405,934
2012
$4,824 (+23.2%)
$190,505 + $213,596
$404,101
2011
$3,916 (−18.6%)
$186,770 + $209,408
$396,178
2010
$4,809 (+8.7%)
$145,907 + $163,593
$309,500
2009
$4,425 (−3.6%)
$181,740 + $203,768
$385,508
2008
$4,588
$165,001 + $184,999
$350,000
Public record
Public record
Permits
Beds
5
Baths
5
Stories
1
Lot width
—
Lot depth
—
Lot size
5,400 Sq. Ft.
Year renovated
1990
Finished Sq. Ft.
2,647
Unfinished Sq. Ft.
—
Total Sq. Ft.
2,647
Year built
1980
Style
Single Family Residential
County
Contra Costa County
APN
3801410097
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 9, 2026.
Nov 21, 2017 • Final
Building/residential/ad/single family addition
Legalize a garage, two bedrooms, and a seating room. Convert a portion of the garage into a new bonus room and replace the rear deck. Install a spiral staircase in the bonus room, relocate the laundry room, and remodel the kitchen and master bathroom.
Addition
ADU
Remodel
Jan 30, 2010 • Final
Building/residential/al/alteration
Work on a patio cover.
ADU
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.
Climate risks
6/10 Flood Factor
Estimated 67-75% 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
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
70
49
77
53
80
55
83
57
87
59
83
61
78
56
64
49
56
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
87/ 100
Very good sunlight
Sunscore
This home ranks in the top 28% for direct sun exposure in Martinez. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.4 hrs
5.9 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 4250 Arthur Rd
$948,382
$1,619 under list price of $950K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $890K to $1.1M.