Great opportunity to purchase in the Mountain View area of Martinez. 4-bedroom, 2-bath split level home on a spacious Lot. Large Living rm & family room w/fireplace, laminate floors, washer/dryer setup with 2 car garage. A wonderful rear yard offers a quiet setting and outdoor entertainment. The property is being sold in its “as-is - where is” condition; public records indicate 3 bedrooms but the house is 4 bedrooms.
Single-familyProperty Type
1961Year Built
7,405 sq ftLot Size
$467Est. Price/Sq.Ft.
2 car garageParking
Listed by Kevin Brown•DRE #00644175• Better Homes Realty
Listed by David Sykes•DRE #01400006• Better Homes Realty
Bought with Brittany Marino•DRE #02044492• Windermere Diablo Realty
bridgeMLS, Bay East AOR, or Contra Costa AOR #40950874
Sep 15, 2021
Sold
$750,000
$436/sq ft
Jul 7, 2021
Pending
—
May 20, 2021
Listed
$715,000
$415/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40799259
Dec 21, 2017
Sold
$512,500
$298/sq ft
Nov 17, 2017
Pending
—
Oct 24, 2017
Price Changed
$539,950
$314/sq ft
Oct 2, 2017
Listed
$559,900
$325/sq ft
+15
Great home located in Martinez on a large lot. The great floor plan has a large living room, spacious kitchen and huge enclosed patio room. Featuring 3 bedrooms, 2 bathrooms, a large indoor laundry room, 2 car garage there is also a wide cemented RV/Boat parking on the side yard. This great home has dual pane windows, new carpet and the roof was replaced approx 10 years ago.
Public Records
May 25, 1976
Sold
$47,000
$27/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$10,473 (+4.5%)
$487,093 + $324,729
$811,822
2024
$10,019 (+2.3%)
$477,543 + $318,362
$795,905
2023
$9,794 (+1.5%)
$468,180 + $312,120
$780,300
2022
$9,647 (+31.0%)
$459,000 + $306,000
$765,000
2020
$7,363 (+1.9%)
$349,382 + $295,227
$644,609
2019
$7,224 (+8.5%)
$307,698 + $258,146
$565,844
2018
$6,657 (+247.2%)
$301,665 + $253,085
$554,750
2017
$1,917 (+6.9%)
$28,403 + $76,981
$105,384
2016
$1,793 (+1.1%)
$28,403 + $76,981
$105,384
2015
$1,773 (+1.7%)
$27,847 + $75,472
$103,319
2014
$1,744 (+0.9%)
$26,892 + $72,883
$99,775
2013
$1,728 (+2.8%)
$26,892 + $72,883
$99,775
2012
$1,680 (+1.0%)
$26,771 + $72,554
$99,325
2011
$1,664 (+0.5%)
$26,247 + $71,132
$97,379
2010
$1,656 (+1.1%)
$25,733 + $69,738
$95,471
2009
$1,638 (+6.3%)
$25,541 + $69,217
$94,758
2008
$1,542
$25,602 + $69,382
$94,984
Tax history for 820 Shell Ave
Year
Property tax
Land + Additions
Assessment*
2025
$10,473 (+4.5%)
$487,093 + $324,729
$811,822
2024
$10,019 (+2.3%)
$477,543 + $318,362
$795,905
2023
$9,794 (+1.5%)
$468,180 + $312,120
$780,300
2022
$9,647 (+31.0%)
$459,000 + $306,000
$765,000
2020
$7,363 (+1.9%)
$349,382 + $295,227
$644,609
2019
$7,224 (+8.5%)
$307,698 + $258,146
$565,844
2018
$6,657 (+247.2%)
$301,665 + $253,085
$554,750
2017
$1,917 (+6.9%)
$28,403 + $76,981
$105,384
2016
$1,793 (+1.1%)
$28,403 + $76,981
$105,384
2015
$1,773 (+1.7%)
$27,847 + $75,472
$103,319
2014
$1,744 (+0.9%)
$26,892 + $72,883
$99,775
2013
$1,728 (+2.8%)
$26,892 + $72,883
$99,775
2012
$1,680 (+1.0%)
$26,771 + $72,554
$99,325
2011
$1,664 (+0.5%)
$26,247 + $71,132
$97,379
2010
$1,656 (+1.1%)
$25,733 + $69,738
$95,471
2009
$1,638 (+6.3%)
$25,541 + $69,217
$94,758
2008
$1,542
$25,602 + $69,382
$94,984
*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
Zoning
Beds
4
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
7,405 Sq. Ft.
Year renovated
1975
Sq. Ft.
1,722
Year built
1961
Style
Single Family Residential
County
Contra Costa County
APN
3751000260
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
R-6.0
One Family Residential District
The R Residential Districts are included in the zoning regulations to achieve the following purposes: Reserve appropriately located areas tar residential living in a variety of types of dwellings, at a reasonable range of population densities consistent with sound standards of public health and safety; Ensure adequate light, air and privacy for each dwelling unit; Provide adequate amounts of private open space in proximity to each dwelling unit; Provide space for community facilities needed to complement urban residential areas; Provide space for institutions which require a residential environment; Minimize traffic congestion and to avoid the overloading of utilities by preventing the construction of buildings of excessive size in relation to the land around them; Provide necessary space for off-street parking of automobiles and, where appropriate for off-street loading of trucks; Protect residential properties from the hazs, noise and congestion created by commercial and industrial traffic; Protect residential properties from noise, illumination, unsightliness, odors, dust, dirt, smoke, vibration, heat, glare and other objectionable influences; Protect residential properties from fire, explosion, noxious fumes and other hazards.
Permitted uses
Include but are not limited to:
Agriculture
Agriculture-Other
Housing-Group
Housing-Single unit
Housing-Multiple units
Housing-Senior
Housing-Other
Property details
Parking
Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Int Access From Garage, RV/Boat Parking
Interior
Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Stall Shower
Primary Bathroom Included Features: Shower Over Tub
Interior Features
Interior Features: Breakfast Nook, Tile Counters
Appliances: Dishwasher, Double Oven, Electric Range, Gas Water Heater
Laundry Features: Hookups Only, Laundry Room
Upper Level Features: 3 Bedrooms, 1 Bath, Main Entry
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2021. This data may not match public records. Learn more.