Gorgeous 4,000 square foot home in beautiful Discovery Bay! Very close to the lake. Two master suites. Don't miss out on this one! HOA dues are an estimate and will have an exact figure shortly.
Single-familyProperty Type
2003Year Built
6,795 sq ftLot Size
$192Est. Price/Sq.Ft.
2 car garageParking
Listed by Jeffrey Orona•DRE #01807973• HomeSmart PV & Associates
Listed by Rachel Prescott•DRE #01468091• HomeSmart PV & Associates
bridgeMLS, Bay East AOR, or Contra Costa AOR #40329528
May 22, 2008
Listing Removed
—
Apr 12, 2008
Price Changed
*
Mar 13, 2008
Listed
*
Year
Property tax
Land + Additions
Assessment*
2025
$7,648 (+5.4%)
$88,653 + $426,885
$515,538
2024
$7,257 (+1.6%)
$86,915 + $418,515
$505,430
2023
$7,143 (+1.7%)
$85,211 + $410,309
$495,520
2022
$7,025 (+2.4%)
$83,541 + $402,264
$485,805
2021
$6,861 (+0.5%)
$81,903 + $394,377
$476,280
2020
$6,825 (+1.3%)
$80,298 + $386,645
$466,943
2019
$6,738 (+4.1%)
$79,475 + $382,681
$462,156
2018
$6,475 (+2.2%)
$77,917 + $375,178
$453,095
2017
$6,336 (+5.8%)
$74,893 + $360,610
$435,503
2016
$5,987 (+2.7%)
$74,893 + $360,610
$435,503
2015
$5,827 (+1.9%)
$73,425 + $353,540
$426,965
2014
$5,718 (+6.9%)
$70,907 + $341,409
$412,316
2013
$5,349 (+0.1%)
$70,907 + $341,409
$412,316
2012
$5,342 (+12.3%)
$65,522 + $315,478
$381,000
2011
$4,759 (−5.0%)
$65,522 + $315,478
$381,000
2010
$5,007 (+1.3%)
$56,580 + $272,420
$329,000
2009
$4,941 (−25.6%)
$61,997 + $298,503
$360,500
2008
$6,644
$61,997 + $298,503
$360,500
Tax history for 3516 Keystone Loop
Year
Property tax
Land + Additions
Assessment*
2025
$7,648 (+5.4%)
$88,653 + $426,885
$515,538
2024
$7,257 (+1.6%)
$86,915 + $418,515
$505,430
2023
$7,143 (+1.7%)
$85,211 + $410,309
$495,520
2022
$7,025 (+2.4%)
$83,541 + $402,264
$485,805
2021
$6,861 (+0.5%)
$81,903 + $394,377
$476,280
2020
$6,825 (+1.3%)
$80,298 + $386,645
$466,943
2019
$6,738 (+4.1%)
$79,475 + $382,681
$462,156
2018
$6,475 (+2.2%)
$77,917 + $375,178
$453,095
2017
$6,336 (+5.8%)
$74,893 + $360,610
$435,503
2016
$5,987 (+2.7%)
$74,893 + $360,610
$435,503
2015
$5,827 (+1.9%)
$73,425 + $353,540
$426,965
2014
$5,718 (+6.9%)
$70,907 + $341,409
$412,316
2013
$5,349 (+0.1%)
$70,907 + $341,409
$412,316
2012
$5,342 (+12.3%)
$65,522 + $315,478
$381,000
2011
$4,759 (−5.0%)
$65,522 + $315,478
$381,000
2010
$5,007 (+1.3%)
$56,580 + $272,420
$329,000
2009
$4,941 (−25.6%)
$61,997 + $298,503
$360,500
2008
$6,644
$61,997 + $298,503
$360,500
*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
Permits
Beds
5
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
6,800 Sq. Ft.
Year renovated
2004
Sq. Ft.
4,011
Year built
2003
Style
Single Family Residential
County
Contra Costa County
APN
0114210339
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
P-1
Planned Unit District
A large-scale integrated development or a general plan special area of concern provides an opportunity for, and requires cohesive design when flexible regulations are applied; whereas the application of conventional regulation, designed primarily for individual lot development, to a large-scale development or special area may create a monotonous and inappropriate neighborhood. The planned unit district is intended to allow diversification in the relationship of various uses, buildings, structures, lot sizes and open space while insuring substantial compliance with the general plan and the intent of the county code in requiring adequate standards necessary to satisfy the requirements of the public health, safety and general welfare. These standards shall be observed without unduly inhibiting the advantages of large-scale site or special area planning.
Permitted uses
Include but are not limited to:
Housing-Single unit
Dec 4, 2020 • Final
Building - residential solar photovoltaic
Install a new solar energy system.
Electrical
Ev charger
Solar
Oct 9, 2003 • Final
Building/residential/r/new single family-duplex
Construct a new residential building based on plan five with an office.
New construction
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 & Garage Information
Garage Spaces: 2
Parking Features: Attached
Driveway Sidewalks: Sidewalk/Curb/Gutter
Interior
Bathroom Information
# of Bathrooms (Full): 4
Other Bathroom Features: Double Sinks, Shower Stall(s), Tub
Bedroom Information
# of Bedrooms (Total): 5
Heating & Cooling
Cooling: Central
Heating: Central
Interior Features
Fireplaces Total: 1
Fireplace Features: Family Room
Flooring: Carpet, Tile
Laundry Features: Inside Room, Sink
Window Features: Dual Pane Full
Room Information
Room Type: Baths Other
Dining Room Features: Dining/Living Combo, Space in Kitchen
Exterior
Exterior Features
Allows Horses: No
Roof: Tile
Pool Information
Has Private Pool: No
Has Spa: No
Property Information
Property Type: Residential
Property Sub Type: Single Family Residence
Subtype Description: Detached
Year Built: 2,003
Lot Information
Lot Size Square Feet: 6,795
Lot Size Acres: 0.156
Lot Size Dimensions: ,
Utilities
Utility Information
Utilities: Natural Gas Connected
Electric: 220 Volts, 220 Volts in Laundry
Sewer: In & Connected
Water Source: Public
Location
HOA Information
Association YN: Yes
Association Fee: $166
Association Fee Frequency: Monthly
School Information
School District County: Contra Costa
Elementary School District: Other
Middle Or Junior School District: Other
High School District: Other
Location Information
Postal Code: 94505
County Or Parish: Contra Costa
CrossStreet: Lakeshore Circle
Directions: Byron Hwy to Bixler, to Lakeshore Circle, to Keystone Loop
State Or Province: CA
Street Number Numeric: 3516
Unparsed Address: 3516 Keystone Loop, Discovery Bay, CA 94505
Community Information
Senior Community YN: No
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 4,011
Stories: 2.0
Lot Size: 6,800 square feet
Style: Single Family Residential
Year Built: 2003
Year Renovated: 2004
County: Contra Costa County
APN: 0114210339
Home facts updated by county records on Jul 13, 2026
Other
Selling Agent
Buyer Agent Full Name: Michele
Around this home
Schools
Timber Point Elementary School
Public K-5 • Assigned • 0.5mi
6/10
Excelsior Middle School
Public 6-8 • Assigned • 2.8mi
4/10
Liberty High School
Public 9-12 • Assigned • 4.5mi
7/10
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
6/10 Heat Factor
7 days above 102° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
20 unhealthy days expected this year, 21 days in 30 years
Provided by First Street
Historical weather
Discovery Bay, CA • 94505
Average low and high temperatures (°F)
59
39
63
44
72
49
73
49
82
55
89
58
91
58
95
62
89
60
80
55
64
46
56
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 12.6 hours in
June and 4.7 hours in December, placing it above the
U.S. average for solar exposure.
12.6 hrs
4.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$733,000 – $887,000
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