OFF MARKET

Off Market May 2015 for $7.2M

$9,697,281

Est. refi paymentEst. refi $46,419/mo

•

6,940

sq ft

3915 Happy Valley Rd, Lafayette, CA 94549

About this home

Single-familyProperty Type

1938Year Built

2.31 acresLot Size

$1,397Est. Price/Sq.Ft.

4 car garageParking

Listed by Dana Green •DRE #01482454 • Compass

Bought with Lauren Holloway •DRE #01393592 • Golden Gate Sotheby's Int'l Re

Redfin checked: 3 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40697095

Redfin Estimate

$9,697,281

$2.5M since sold in May 2015$295K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 44.9% higher than the average sale price ($6.69M) of 6 comparable homes.

SOLD MAY 7, 2026
$9,000,000
A
5 beds6.5 baths6,211 sq ft
4090 Happy Valley Rd, Lafayette, CA 94549
SOLD JUN 1, 2026
$9,600,108
B
6 beds6 baths5,270 sq ft
3958 S Peardale Dr, Lafayette, CA 94549
SOLD MAR 11, 2026
$4,250,000
C
5 beds4.5 baths5,014 sq ft
4040 Los Arabis Dr, Lafayette, CA 94549
SOLD MAR 16, 2026
$5,400,000
D
5 beds6.5 baths8,770 sq ft
4146 Canyon Rd, Lafayette, CA 94549
SOLD SEP 3, 2025
$7,000,000
E
5 beds6.5 baths7,500 sq ft
3828 Happy Valley Rd, Lafayette, CA 94549
SOLD FEB 17, 2026
$4,900,000
F
6 beds5 baths5,450 sq ft
3957 Rancho Rd, Lafayette, CA 94549

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Earn from this home

Sell

$4,860,174

Est. take-home

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Refinance

Est. cash available

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Rent

$10,231/mo

Redfin rental estimate

List your home for rent

Market trends in 94549, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.9%

0.2% MoM

Median sale price

$2.0M

$452 MoM

Avg. days on market

18d

0 days MoM

Recently sold homes

15 MoM

New listings for sale

COMING SOON
$825,000
2 beds1.5 baths1,038 sq ft
917 Hough Ave #9, Lafayette, CA 94549
COMING SOON
$2,498,000
5 beds3.5 baths4,350 sq ft
857A Mountain View Dr, Lafayette, CA 94549
OPEN SUN, 12PM TO 4PM
$2,100,000
4 beds2.5 baths2,086 sq ft
829 Reliez Station Rd, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$1,587,000
4 beds3 baths2,392 sq ft
16 Ruth Ct, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$1,925,000
4 beds3 baths2,228 sq ft
859 Mountain View Dr, Lafayette, CA 94549
OPEN SUN, 2PM TO 4PM
$2,495,000
3 beds3 baths2,686 sq ft
1232 Upper Happy Vly, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$2,195,000
3 beds2 baths1,658 sq ft
210 Lafayette Cir #302, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$3,999,000
4 beds3.5 baths4,114 sq ft
3647 Happy Valley Rd, Lafayette, CA 94549
OPEN SUN, 2PM TO 4PM
$2,995,000
4 beds3.5 baths4,076 sq ft
2 Reliez Manor Ct, Lafayette, CA 94549
COMING SOON
$1,699,000
3 beds2 baths1,956 sq ft
3149 Indian Way, Lafayette, CA 94549
See all

Provided by Redfin

Sale history for 3915 Happy Valley Rd

Date

Event

Price

Public Records

May 19, 2015

Sold

$7,200,000

$1,037/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40697095

May 19, 2015

Listing Removed

—

May 19, 2015

Sold

$7,200,000

$1,037/sq ft

May 13, 2015

Pending

—

May 1, 2015

Listed

$5,895,000

$849/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #11015395

Jun 18, 1999

Sold

—

May 19, 1999

Listing Removed

—

May 14, 1999

Listed

$2,950,000

$425/sq ft

Public Records

Sep 26, 1995

Sold

$2,200,000

$317/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$107,706 (+1.7%)

$6,374,611 + $3,544,001

$9,918,612

2024

$105,909 (+1.7%)

$6,249,619 + $3,474,511

$9,724,130

2023

$104,182 (+1.5%)

$6,127,078 + $3,406,384

$9,533,462

2022

$102,612 (+3.0%)

$6,006,940 + $3,339,593

$9,346,533

2021

$99,640 (+7.0%)

$5,889,157 + $3,274,111

$9,163,268

2020

$93,091 (+23.0%)

$5,773,684 + $3,209,913

$8,983,597

2019

$75,693 (+19.1%)

$5,714,482 + $2,515,000

$8,229,482

2018

$63,539 (+4.4%)

$5,602,434 + $1,020,000

$6,622,434

2017

$60,863 (−26.1%)

$5,384,886

2016

$82,395 (+79.6%)

$5,384,886

2015

$45,872 (+0.7%)

$5,279,300 + $2,030,500

$7,309,800

2014

$45,548 (+1.0%)

$2,941,418 + $1,048,187

$3,989,605

2013

$45,089 (+3.1%)

$2,941,418 + $1,048,187

$3,989,605

2012

$43,754 (+1.4%)

$2,928,125 + $1,043,450

$3,971,575

2011

$43,146 (+1.1%)

$2,870,711 + $1,022,991

$3,893,702

2010

$42,681 (−0.2%)

$2,814,423 + $1,002,933

$3,817,356

2009

$42,772 (+1.8%)

$2,793,389 + $995,438

$3,788,827

2008

$42,025

$2,800,026 + $997,803

$3,797,829

Tax history for 3915 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$107,706 (+1.7%)

$6,374,611 + $3,544,001

$9,918,612

2024

$105,909 (+1.7%)

$6,249,619 + $3,474,511

$9,724,130

2023

$104,182 (+1.5%)

$6,127,078 + $3,406,384

$9,533,462

2022

$102,612 (+3.0%)

$6,006,940 + $3,339,593

$9,346,533

2021

$99,640 (+7.0%)

$5,889,157 + $3,274,111

$9,163,268

2020

$93,091 (+23.0%)

$5,773,684 + $3,209,913

$8,983,597

2019

$75,693 (+19.1%)

$5,714,482 + $2,515,000

$8,229,482

2018

$63,539 (+4.4%)

$5,602,434 + $1,020,000

$6,622,434

2017

$60,863 (−26.1%)

$5,384,886

2016

$82,395 (+79.6%)

$5,384,886

2015

$45,872 (+0.7%)

$5,279,300 + $2,030,500

$7,309,800

2014

$45,548 (+1.0%)

$2,941,418 + $1,048,187

$3,989,605

2013

$45,089 (+3.1%)

$2,941,418 + $1,048,187

$3,989,605

2012

$43,754 (+1.4%)

$2,928,125 + $1,043,450

$3,971,575

2011

$43,146 (+1.1%)

$2,870,711 + $1,022,991

$3,893,702

2010

$42,681 (−0.2%)

$2,814,423 + $1,002,933

$3,817,356

2009

$42,772 (+1.8%)

$2,793,389 + $995,438

$3,788,827

2008

$42,025

$2,800,026 + $997,803

$3,797,829

*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

Baths

Stories

Lot width

—

Lot depth

—

Lot size

2.31 Acres

Year renovated

2019

Sq. Ft.

9,335

Year built

2017

Style

Single Family Residential

County

Contra Costa County

APN

2461200061

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Feb 26, 2025 • Final

Building - residential solar photovoltaic

Install a roof-mounted photovoltaic system with a new electrical subpanel and AC disconnect. The system includes solar panels and associated electrical equipment.

Electrical

Solar

Oct 9, 2024 • Final

Building - residential solar photovoltaic

Install a roof-mounted photovoltaic system with a new AC disconnect and an Enphase combiner box. The project includes updates to the disconnect fuses and wiring.

Electrical

Solar

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: 4
Covered Spaces: 4
Parking Features: Attached, Garage, Int Access From Garage, Side Yard Access, Guest, Parking Lot, Garage Door Opener

Interior

Virtual Tour

Bathroom Information
# of Bathrooms Total: 7
# of Bathrooms Full: 6
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Stall Shower, Updated Baths
Primary Bathroom Included Features: Solid Surface, Stall Shower, Tub, Updated Baths

Interior Features
Interior Features: Au Pair, Bonus/Plus Room, Dining Area, Family Room, Formal Dining Room, In-Law Floorplan, Kitchen/Family Combo, Library, Rec/Rumpus Room, Storage, Breakfast Bar, Breakfast Nook, Counter - Solid Surface, Stone Counters, Tile Counters, Eat-in Kitchen, Kitchen Island, Pantry, Updated Kitchen
Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Plumbed For Ice Maker, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven, Trash Compactor, Gas Water Heater
Laundry Features: Laundry Room
Street Level Features: 6+ Bedrooms, 5+ Baths, Laundry Facility, Main Entry
Window Features: Window Coverings
Fireplaces Total: 5
Has Fireplace
Flooring: Hardwood, Carpet

Room Information
Kitchen Features: Breakfast Bar,Breakfast Nook,Counter - Solid Surface,Counter - Stone,Counter - Tile,Dishwasher,Double Oven,Eat In Kitchen,Garbage Disposal,Gas Range/Cooktop,Ice Maker Hookup,Island,Microwave,Oven Built-in,Pantry,Range/Oven Built-in,Refrigerator,Self-Cleaning Oven,Trash Compactor,Updated Kitchen
Rooms Total: 17
Fireplace Features: Den, Family Room, Gas, Living Room
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 6,940
Foundation Details: Slab

Exterior Features
Patio And Porch Features: Deck, Patio
Exterior Features: Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Sprinklers Back, Sprinklers Front, Storage
Fencing: Fenced
Roof: Shake

Mobile Home Information
Model: Custom

Pool Information
Pool Features: Pool Cover, Pool Sweep
Has Private Pool

Property Information
Living Area: 6940
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1938

Lot Information
Other Structures: Guest House
Lot Size Square Feet: 100623
Lot Size Area: 2.31
Lot Size Units: Acres
Lot Size Acres: 2.31
Lot Features: Level, Premium Lot
Zoning: R-40

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Zoned

Location

School Information
High School District: Acalanes (925) 280-3900

Public facts

Beds: 6
Baths: 8.0
Sq. Ft.: 9,335
Stories: 2.0
Lot Size: 2.31 acres
Style: Single Family Residential
Year Built: 2017
Year Renovated: 2019
County: Contra Costa County
APN: 2461200061

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Happy Valley Elementary School

Public K-5 • Assigned • 0.2mi

8/10

M. H. Stanley Middle School

Public 6-8 • Assigned • 2.2mi

8/10

Acalanes High School

Public 9-12 • Assigned • 2.7mi

10/10

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

4/10 Fire Factor

2% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 92° expected this year, 16 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

15 unhealthy days expected this year, 16 days in 30 years

Provided by First Street

Historical weather

Lafayette, CA • 94549

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 11.5 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.5 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$9.21M – $11.15M

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Home values near 3915 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
3900 Happy Valley Road, Lafayette, CA 5 Beds \| 3 Baths \| 2896 Sq. Ft.	$2,986,212
3957 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 3440 Sq. Ft.	$3,865,312

Address	Redfin Estimate
3955 Happy Valley Road, Lafayette, CA 7 Beds \| 8.5 Baths \| 13737 Sq. Ft.	$7,362,693
3938 Happy Valley Road, Lafayette, CA 5 Beds \| 5.5 Baths \| - Sq. Ft.	$4,395,234

Address	Redfin Estimate
3893 Happy Valley Road, Lafayette, CA 3 Beds \| 3 Baths \| 2715 Sq. Ft.	$2,386,430
3905 Happy Valley Road, Lafayette, CA 6 Beds \| 6 Baths \| 4578 Sq. Ft.	$4,890,896

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2015. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94549, CA

Sale history for 3915 Happy Valley Rd

Tax history for 3915 Happy Valley Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94549

Home values near 3915 Happy Valley Rd

More real estate resources