Adorable Gregory Gardens single story. Expanded with permits. Spacious three bedroom, two bath w/large family room, updated kitchen & baths, newer paint, large yard, detached storage, potential office. Terrific home - great for entertaining. Convenient location.
Single-familyProperty Type
1950Year Built
7,875 sq ftLot Size
$706Est. Price/Sq.Ft.
2 car garageParking
Listed by Julie Dudum Del Santo•DRE #01290985• Coldwell Banker
Bought with Nick Issa•DRE #01422824• RE/MAX Associates
bridgeMLS, Bay East AOR, or Contra Costa AOR #40118844
Nov 17, 2005
Sold
$660,000
$462/sq ft
Oct 21, 2005
Listing Removed
—
Oct 17, 2005
Listed
$650,000
$455/sq ft
Public Records
Apr 22, 1993
Sold
$225,000
$158/sq ft
Public Records
Jan 15, 1988
Sold
$126,000
$88/sq ft
Public Records
Sep 2, 1982
Sold
$106,000
$74/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$10,922 (+2.3%)
$585,436 + $334,529
$919,965
2024
$10,676 (+1.6%)
$573,957 + $327,970
$901,927
2023
$10,505 (+0.9%)
$562,703 + $321,540
$884,243
2022
$10,416 (+2.2%)
$551,670 + $315,236
$866,906
2021
$10,197 (+6.6%)
$540,853 + $309,055
$849,908
2020
$9,566 (+1.9%)
$530,249 + $302,996
$833,245
2019
$9,383 (+10.3%)
$494,774 + $282,726
$777,500
2018
$8,505 (+7.3%)
$480,456 + $274,544
$755,000
2017
$7,926 (+2.6%)
$413,001 + $235,999
$649,000
2016
$7,724 (+6.0%)
$413,001 + $235,999
$649,000
2015
$7,284 (+17.7%)
$403,774 + $230,726
$634,500
2014
$6,188 (+21.8%)
$313,092 + $178,908
$492,000
2013
$5,080 (+6.3%)
$313,092 + $178,908
$492,000
2012
$4,780 (−1.8%)
$257,728 + $147,272
$405,000
2011
$4,867 (−3.1%)
$242,455 + $138,545
$381,000
2010
$5,023 (−2.6%)
$253,273 + $144,727
$398,000
2009
$5,158 (−25.0%)
$265,364 + $151,636
$417,000
2008
$6,880
$280,001 + $159,999
$440,000
Tax history for 1912 Helen Rd
Year
Property tax
Land + Additions
Assessment*
2025
$10,922 (+2.3%)
$585,436 + $334,529
$919,965
2024
$10,676 (+1.6%)
$573,957 + $327,970
$901,927
2023
$10,505 (+0.9%)
$562,703 + $321,540
$884,243
2022
$10,416 (+2.2%)
$551,670 + $315,236
$866,906
2021
$10,197 (+6.6%)
$540,853 + $309,055
$849,908
2020
$9,566 (+1.9%)
$530,249 + $302,996
$833,245
2019
$9,383 (+10.3%)
$494,774 + $282,726
$777,500
2018
$8,505 (+7.3%)
$480,456 + $274,544
$755,000
2017
$7,926 (+2.6%)
$413,001 + $235,999
$649,000
2016
$7,724 (+6.0%)
$413,001 + $235,999
$649,000
2015
$7,284 (+17.7%)
$403,774 + $230,726
$634,500
2014
$6,188 (+21.8%)
$313,092 + $178,908
$492,000
2013
$5,080 (+6.3%)
$313,092 + $178,908
$492,000
2012
$4,780 (−1.8%)
$257,728 + $147,272
$405,000
2011
$4,867 (−3.1%)
$242,455 + $138,545
$381,000
2010
$5,023 (−2.6%)
$253,273 + $144,727
$398,000
2009
$5,158 (−25.0%)
$265,364 + $151,636
$417,000
2008
$6,880
$280,001 + $159,999
$440,000
*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
2
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
7,875 Sq. Ft.
Year renovated
1960
Sq. Ft.
1,428
Year built
1950
Style
Single Family Residential
County
Contra Costa County
APN
1521660041
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 19, 2026.
R7
Single-Family Residential District
The R-7 districts allow for high density single-family residential land use at densities from 4.6 to 7.3 units per net acre subject to appropriate standards. In the R-7 district the minimum lot size is 7,000 square feet. In the R-6 district, the minimum lot size is 6,000 square feet.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Oct 27, 2017 • Final
Building (residential) alteration, remodel, repair
Roofing
Nov 14, 2012 • Final
Building (residential) alteration, remodel, repair
HVAC
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: 2
Covered Spaces: 2
Parking Features: Attached, Garage, Side Yard Access, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Shower Over Tub, Tile
Primary Bathroom Included Features: Shower Over Tub, Tile
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2005. This data may not match public records. Learn more.