Opportunity knocks! Fixer upper on sweeping corner lot with additional two bedroom/one bathroom structure, skylights, fantastic views of rolling hills, perfect for investor or owner occupied buyer. Large indoor and outdoor spaces. Rear structure may not be permitted - buyer to confirm.
Single-familyProperty Type
1947Year Built
0.25 acresLot Size
$303Est. Price/Sq.Ft.
1 car garageParking
Listed by Mark Shaw•DRE #01245584• RE/MAX Accord
Bought with Aida Fuentes•DRE #01946823• KW Bay Area Living
bridgeMLS, Bay East AOR, or Contra Costa AOR #40741668
Jun 29, 2016
Sold
$385,000
$189/sq ft
May 28, 2016
Pending
—
May 21, 2016
Listed
$300,000
$147/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,436 (+4.3%)
$241,491 + $223,378
$464,869
2024
$7,130 (+3.5%)
$236,756 + $218,999
$455,755
2023
$6,891 (+3.5%)
$232,114 + $214,705
$446,819
2022
$6,655 (+3.7%)
$227,563 + $210,496
$438,059
2021
$6,416 (+2.5%)
$223,101 + $206,369
$429,470
2020
$6,262 (+2.8%)
$218,727 + $202,323
$421,050
2019
$6,089 (+4.3%)
$216,485 + $200,249
$416,734
2018
$5,837 (+1.6%)
$212,241 + $196,323
$408,564
2017
$5,747 (+53.9%)
$204,000 + $188,700
$392,700
2016
$3,735 (+1.1%)
$204,000 + $188,700
$392,700
2015
$3,695 (+1.6%)
$103,862 + $129,831
$233,693
2014
$3,636 (+0.9%)
$100,299 + $125,376
$225,675
2013
$3,602 (+2.9%)
$100,299 + $125,376
$225,675
2012
$3,499 (+1.0%)
$99,846 + $124,810
$224,656
2011
$3,464 (+0.3%)
$97,889 + $122,363
$220,252
2010
$3,453
$95,970 + $119,964
$215,934
2009
$3,450 (+3.5%)
$95,253 + $119,068
$214,321
2008
$3,334
$95,480 + $119,351
$214,831
Tax history for 4520 Blum Rd
Year
Property tax
Land + Additions
Assessment*
2025
$7,436 (+4.3%)
$241,491 + $223,378
$464,869
2024
$7,130 (+3.5%)
$236,756 + $218,999
$455,755
2023
$6,891 (+3.5%)
$232,114 + $214,705
$446,819
2022
$6,655 (+3.7%)
$227,563 + $210,496
$438,059
2021
$6,416 (+2.5%)
$223,101 + $206,369
$429,470
2020
$6,262 (+2.8%)
$218,727 + $202,323
$421,050
2019
$6,089 (+4.3%)
$216,485 + $200,249
$416,734
2018
$5,837 (+1.6%)
$212,241 + $196,323
$408,564
2017
$5,747 (+53.9%)
$204,000 + $188,700
$392,700
2016
$3,735 (+1.1%)
$204,000 + $188,700
$392,700
2015
$3,695 (+1.6%)
$103,862 + $129,831
$233,693
2014
$3,636 (+0.9%)
$100,299 + $125,376
$225,675
2013
$3,602 (+2.9%)
$100,299 + $125,376
$225,675
2012
$3,499 (+1.0%)
$99,846 + $124,810
$224,656
2011
$3,464 (+0.3%)
$97,889 + $122,363
$220,252
2010
$3,453
$95,970 + $119,964
$215,934
2009
$3,450 (+3.5%)
$95,253 + $119,068
$214,321
2008
$3,334
$95,480 + $119,351
$214,831
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Permits
Beds
2
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
0.25 Acres
Year renovated
1960
Sq. Ft.
2,036
Year built
1947
Style
Single Family Residential
County
Contra Costa County
APN
1591700024
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
Jun 28, 2016 • Final
Building - residential plumbing
Install seismic gas shut-off valves at two gas meters for an existing duplex.
Gas
Jul 5, 2012 • Final
Building - residential re-roof
Remove gravel and install a new acrylic roof coating.
Roofing
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
Parking
Parking Information
Has Attached Garage
Garage Spaces: 1
Covered Spaces: 1
Parking Features: Attached
Interior
Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Primary Bathroom Included Features: Stall Shower
Interior Features
Interior Features: Breakfast Bar, Eat-in Kitchen
Appliances: Electric Range, Disposal, Gas Range, Microwave, Oven, Gas Water Heater
Laundry Features: Hookups Only, Laundry Room
Street Level Features: 2 Bedrooms, 2 Baths, Primary Bedrm Suite - 1, Main Entry
Window Features: Skylight(s)
Fireplaces Total: 1
Has Fireplace
Flooring: Tile, Carpet
Room Information
Kitchen Features: Breakfast Bar,Eat In Kitchen,Electric Range/Cooktop,Garbage Disposal,Gas Range/Cooktop,Microwave,Oven Built-in,Skylight(s)
Rooms Total: 5
Fireplace Features: Living Room
Exterior
Building Information
Construction Materials: Brick, Wood Siding
Building Area Total: 2,036
Foundation Details: Slab
Exterior Features
Patio And Porch Features: Covered
Exterior Features: Back Yard, Front Yard, Side Yard
Roof: Shingle
Property Information
Living Area: 2036
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1947
Lot Information
Lot Size Square Feet: 10890
Lot Size Area: 0.25
Lot Size Units: Acres
Lot Size Acres: 0.25
Lot Features: Level, Premium Lot
Zoning: 1001
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Wall/Window Unit(s)
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 2,036
Stories: 1.0
Lot Size: 0.25 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: 1960
County: Contra Costa County
APN: 1591700024
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Las Juntas Elementary School
Public K-5 • Assigned • 1.0mi
5/10
Martinez Junior High School
Public 6-8 • Assigned • 3.1mi
7/10
Alhambra Senior High School
Public 9-12 • Assigned • 3.1mi
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
3/10 Fire Factor
0.46% chance of being 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
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
$586,000 – $710,000
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2016. This data may not match public records. Learn more.