46 Seneca Ln is a 1,825 square foot house on a 8,500 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on December 07, 2007 for $860,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,544,036.
Single-familyProperty Type
1985Year Built
8,500 sq ftLot Size
$846Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,544,036
$684K since sold in December 2007$46K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.5% higher than the average sale price ($1.46M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40285671
Nov 12, 2007
Listing Removed
—
Sep 26, 2007
Contingent
—
Public Records
Apr 25, 1989
Sold
$329,000
$180/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$13,653 (+3.2%)
$771,711 + $380,492
$1,152,203
2025
$13,226 (+104.2%)
$771,711 + $380,492
$1,152,203
2024
$6,477 (−49.2%)
$756,580 + $373,032
$1,129,612
2023
$12,745 (+0.8%)
$741,746 + $365,718
$1,107,464
2022
$12,649 (+2.2%)
$727,202 + $358,548
$1,085,750
2021
$12,376 (+1.0%)
$712,944 + $351,518
$1,064,462
2020
$12,254 (+3.8%)
$698,965 + $344,626
$1,043,591
2019
$11,809 (+7.4%)
$691,798 + $341,093
$1,032,891
2018
$11,000 (+4.2%)
$659,723 + $325,277
$985,000
2017
$10,553 (+3.9%)
$609,154 + $300,346
$909,500
2016
$10,157 (+5.8%)
$609,154 + $300,346
$909,500
2015
$9,600 (+8.5%)
$581,024 + $286,476
$867,500
2014
$8,849 (+22.5%)
$497,973 + $245,527
$743,500
2013
$7,222 (+8.3%)
$497,973 + $245,527
$743,500
2012
$6,667 (−3.6%)
$403,200 + $198,800
$602,000
2011
$6,915
$374,735 + $184,765
$559,500
2010
$6,922 (−8.1%)
$390,809 + $192,691
$583,500
2009
$7,528 (−22.6%)
$394,158 + $194,342
$588,500
2008
$9,723
$432,000 + $213,000
$645,000
Tax history for 46 Seneca Ln
Year
Property tax
Land + Additions
Assessment*
2026
$13,653 (+3.2%)
$771,711 + $380,492
$1,152,203
2025
$13,226 (+104.2%)
$771,711 + $380,492
$1,152,203
2024
$6,477 (−49.2%)
$756,580 + $373,032
$1,129,612
2023
$12,745 (+0.8%)
$741,746 + $365,718
$1,107,464
2022
$12,649 (+2.2%)
$727,202 + $358,548
$1,085,750
2021
$12,376 (+1.0%)
$712,944 + $351,518
$1,064,462
2020
$12,254 (+3.8%)
$698,965 + $344,626
$1,043,591
2019
$11,809 (+7.4%)
$691,798 + $341,093
$1,032,891
2018
$11,000 (+4.2%)
$659,723 + $325,277
$985,000
2017
$10,553 (+3.9%)
$609,154 + $300,346
$909,500
2016
$10,157 (+5.8%)
$609,154 + $300,346
$909,500
2015
$9,600 (+8.5%)
$581,024 + $286,476
$867,500
2014
$8,849 (+22.5%)
$497,973 + $245,527
$743,500
2013
$7,222 (+8.3%)
$497,973 + $245,527
$743,500
2012
$6,667 (−3.6%)
$403,200 + $198,800
$602,000
2011
$6,915
$374,735 + $184,765
$559,500
2010
$6,922 (−8.1%)
$390,809 + $192,691
$583,500
2009
$7,528 (−22.6%)
$394,158 + $194,342
$588,500
2008
$9,723
$432,000 + $213,000
$645,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RS-10
Single-Family Residential Zone
The RS zone is applied to areas of the City appropriate for single-family residential land uses in neighborhoods at a density of three to six units per net acre, subject to appropriate standards. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 3,500 to 12,000 sq ft. Depending upon the applicable residential density designator, the RS zone is consistent with and implements the Single Family Low Density, Single Family Low-Medium Density, and Single Family Medium Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Student
Housing-Other
Sep 12, 2025 • Final
Alteration, remodel, repair - building residential
Remodel
Mar 27, 2025 • Final
Water heater/softener - plumbing
Plumbing
Water heater
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
Interior
Room Information
# of Rooms: 8
Exterior
Property Information
Subdivision Name: SUB 5815
Living Sq. Ft: 1,825
Ground Floor Sq. Ft: 1,825
Building Sq. Ft: 1,825
# of Stories: 1
Legal Description: T75LS5AL0032 B
Parking & Garage Information
Garage/Parking Sq. Ft: 471
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,500
Legal Lot Number: 32
Acres: 0.1951
County Use Description: SINGLE FAMILY DETACHED WITH MA
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,825
Stories: 1.0
Lot Size: 8,500 square feet
Style: Single Family Residential
Year Built: 1985
Year Renovated: 1996
County: Contra Costa County
APN: 2097010207
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Bollinger Canyon Elementary School
Public K-5 • Assigned • 0.3mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 1.3mi
10/10
California High School
Public 9-12 • Assigned • 1.7mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon remains competitive, with homes averaging 1 offer and selling in 29 days. Median price is $1.4M (+2.8%), while price per sq. ft. is $677 (-1.2%). Buyers have negotiation opportunities; sellers should price strategically.
San Ramon, Past 3 months,Median price $1.51M, down 4.5% YoY,Homes sold: 169 in July, up 1%,Days on market 20 days,Market Active but more balanced; slight seller advantage,Bottom line: Prices have softened, but homes are still selling relatively...