3828 Happy Valley Rd, Lafayette, CA 94549

Off Market Sep 2025 for $7M

$7,632,176

Est. refi paymentEst. refi $45,305/mo

•

7,500

sq ft

3828 Happy Valley Rd, Lafayette, CA 94549

About this home

Extraordinary ultra-private 1.64 acre estate in the heart of Lafayette’s Happy Valley. This iconic estate was transformed by Kellie Beaubelle of The Beaubelle Group who ensured the design not only looked beautiful but lived beautifully. Enter through a double-gated circular drwy. 7500+/-SF. Single lvl home. White oak flrs. Custom Bellbridge wool carpet. Moroccan plaster walls. Curated fixtures. Raised ceilings. Multiple French drs. 5 bds. 6.5 bths w/marble finishes, custom vanities, fixtures. Inclds pvt au pair/guest ste. & luxurious primary retreat w/spa-inspired en suite, dual vanities, free-standing tub, dual walk-in closet rms w/custom built-ins. Adjacent workout rm. Great rm w/frpl, 3 sets of French drs open to bkyd. Formal dining rm. Executive office w/frpl. Bonus/game rm w/frpl. Spectacular gourmet kitchen w/Viola marble counters, custom cabinetry, 60” Wolf dual oven range, 48’ Thermador frig/freezer + extra Sub-Zero frig, 50+bottle wine frig, dual Bosch DWs. Sitting rm w/built-in banquette, cabinetry. Park-like bkyd. Brick patio. 42-ft pool. Tennis ct. Sprawling synthetic turf. Lush foliage. Mature trees. 3, 2-car garages, 2 mudrms w/built-ins. Endless possibilities to further develop land. Less than 2 mi to downtown; easy walk to Happy Valley Elem.

Single-familyProperty Type

1950Year Built

1.64 acresLot Size

$1,018Est. Price/Sq.Ft.

6 car garageParking

Listed by Glenn Beaubelle •DRE #00678426 • Compass

Bought with Ann Newton Cane •DRE #02084093 • Golden Gate Sotheby's Int'l Re

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #41110095

Redfin Estimate

$7,632,176

$632K since sold in September 2025$29K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 32% higher than the average sale price ($5.78M) 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 JUL 9, 2026
$4,800,000
C
4 beds3.5 baths4,511 sq ft
1165 Glen Rd, Lafayette, CA 94549
SOLD MAY 13, 2026
$3,550,000
D
5 beds4.5 baths5,020 sq ft
1006 Howard Hills Rd, Lafayette, CA 94549
SOLD NOV 26, 2025
$2,850,000
E
5 beds5.5 baths4,897 sq ft
3949 Canyon Dr, 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

$1,722,487

Est. take-home

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Refinance

Est. cash available

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Rent

$10,238/mo

Redfin rental estimate

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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

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See all

Provided by Redfin

Sale history for 3828 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$59,163 (+8.3%)

$3,500,000 + $3,500,000

$7,000,000

2024

$54,652 (+1.7%)

$3,280,937 + $1,970,468

$5,251,405

2023

$53,749 (+1.5%)

$3,216,605 + $1,608,302

$4,824,907

2022

$52,937 (+3.0%)

$3,153,535 + $1,576,767

$4,730,302

2021

$51,406 (−0.7%)

$3,091,701 + $1,545,850

$4,637,551

2020

$51,761 (+275.3%)

$3,031,080 + $1,515,540

$4,546,620

2019

$13,793 (+3.7%)

$3,000,000 + $1,500,000

$4,500,000

2018

$13,306 (−2.6%)

$101,067 + $1,043,117

$1,144,184

2017

$13,656 (+6.5%)

$97,144 + $1,002,612

$1,099,756

2016

$12,821 (+2.8%)

$97,144 + $1,002,612

$1,099,756

2015

$12,474 (−3.4%)

$95,240 + $982,953

$1,078,193

2014

$12,919 (+1.2%)

$91,973 + $949,224

$1,041,197

2013

$12,766 (+3.7%)

$91,973 + $949,224

$1,041,197

2012

$12,308 (+1.6%)

$91,558 + $944,934

$1,036,492

2011

$12,119 (+2.4%)

$89,763 + $926,406

$1,016,169

2010

$11,838 (+0.6%)

$88,003 + $908,242

$996,245

2009

$11,772 (+1.7%)

$87,346 + $901,455

$988,801

2008

$11,570

$87,554 + $903,597

$991,151

Tax history for 3828 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$59,163 (+8.3%)

$3,500,000 + $3,500,000

$7,000,000

2024

$54,652 (+1.7%)

$3,280,937 + $1,970,468

$5,251,405

2023

$53,749 (+1.5%)

$3,216,605 + $1,608,302

$4,824,907

2022

$52,937 (+3.0%)

$3,153,535 + $1,576,767

$4,730,302

2021

$51,406 (−0.7%)

$3,091,701 + $1,545,850

$4,637,551

2020

$51,761 (+275.3%)

$3,031,080 + $1,515,540

$4,546,620

2019

$13,793 (+3.7%)

$3,000,000 + $1,500,000

$4,500,000

2018

$13,306 (−2.6%)

$101,067 + $1,043,117

$1,144,184

2017

$13,656 (+6.5%)

$97,144 + $1,002,612

$1,099,756

2016

$12,821 (+2.8%)

$97,144 + $1,002,612

$1,099,756

2015

$12,474 (−3.4%)

$95,240 + $982,953

$1,078,193

2014

$12,919 (+1.2%)

$91,973 + $949,224

$1,041,197

2013

$12,766 (+3.7%)

$91,973 + $949,224

$1,041,197

2012

$12,308 (+1.6%)

$91,558 + $944,934

$1,036,492

2011

$12,119 (+2.4%)

$89,763 + $926,406

$1,016,169

2010

$11,838 (+0.6%)

$88,003 + $908,242

$996,245

2009

$11,772 (+1.7%)

$87,346 + $901,455

$988,801

2008

$11,570

$87,554 + $903,597

$991,151

*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

1.64 Acres

Year renovated

2000

Sq. Ft.

7,382

Year built

1950

Style

Single Family Residential

County

Contra Costa County

APN

2460900083

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Jul 10, 2025 • Final

Building/residential/ad/single family addition

Enclose a covered utility room and porch to create a new bathroom. Remodel the interior of the residence and make changes to the windows. Modify the ceiling and wall conditions to adjust the foundation and framing work.

Addition

Bathroom

Remodel

Jul 14, 2016 • Final

Building - residential re-roof

Remove existing wood shingles and install new composition shingles.

Roofing

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
Garage Spaces: 6
Covered Spaces: 6
Parking Features: Attached, Int Access From Garage, Enclosed, Garage Faces Side, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 7
# of Bathrooms Full: 6
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Stall Shower, Tile, Tub, Updated Baths, Double Vanity, Window
Primary Bathroom Included Features: Skylight(s), Solid Surface, Stall Shower, Tile, Tub, Updated Baths, Closet, Double Vanity, Marble, Multiple Shower Heads, Outside Access, Walk-In Closet(s), Window

Interior Features
Interior Features: Den, Family Room, Formal Dining Room, Library, Office, Storage, Breakfast Nook, Counter - Solid Surface, Pantry, Updated Kitchen
Appliances: Dishwasher, Double Oven, Gas Range, Microwave, Free-Standing Range, Refrigerator, Dryer, Washer, Gas Water Heater, Tankless Water Heater
Laundry Features: Dryer, Laundry Room, Washer, Sink
Street Level Features: 5 Bedrooms, 5+ Baths, Primary Bedrm Suite - 1, Laundry Facility, No Steps to Entry, Main Entry
Window Features: Double Pane Windows, Bay Window(s), Screens
Fireplaces Total: 3
Has Fireplace
Flooring: Hardwood, Tile, Carpet, Engineered Wood

Room Information
Kitchen Features: Breakfast Nook,Counter - Solid Surface,Stone Counters,Dishwasher,Double Oven,Eat-in Kitchen,Disposal,Gas Range/Cooktop,Kitchen Island,Microwave,Pantry,Range/Oven Free Standing,Refrigerator,Updated Kitchen
Rooms Total: 15
Room Type: Bonus Room, Den, Family Room, Formal Dining Room, Eat-In Kitchen, Library, Media Room, Office, Storage
Fireplace Features: Den, Gas Starter, Living Room, Recreation Room, Stone
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 7,500
Foundation Details: Raised

Exterior Features
Exterior Features: Garden, Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Sprinklers Front, Sprinklers Side, Storage, Terraced Up, Entry Gate, Landscape Back, Landscape Front, Private Entrance, Storage Area
Fencing: Fenced, Front Yard
Roof: Shingle

Pool Information
Pool Features: Gas Heat, Gunite, In Ground, Pool Sweep, Outdoor Pool
Has Private Pool

Property Information
Living Area: 7500
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1950

Lot Information
Lot Size Square Feet: 71438
Lot Size Area: 1.64
Lot Size Units: Acres
Lot Size Acres: 1.64
Lot Features: Level, Premium Lot, Sloped Up, Back Yard, Front Yard, Landscaped, Security Gate, Sprinklers In Rear

Utilities

Utility Information
Electric: Generator

Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Central Air

Location

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

Public facts

Beds: 4
Baths: 7.0
Sq. Ft.: 7,382
Stories: 1.0
Lot Size: 1.64 acres
Style: Single Family Residential
Year Built: 1950
Year Renovated: 2000
County: Contra Costa County
APN: 2460900083

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 • 1.9mi

8/10

Acalanes High School

Public 9-12 • Assigned • 2.3mi

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

1% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 95° 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

$7.25M – $8.78M

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Home values near 3828 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
3810 Happy Valley Rd, Lafayette, CA 5 Beds \| 3 Baths \| 3178 Sq. Ft.	$3,182,288
3827 Happy Valley Rd, Lafayette, CA 3 Beds \| 3 Baths \| 3165 Sq. Ft.	$2,950,116

Address	Redfin Estimate
3830 Happy Valley Rd, Lafayette, CA 4 Beds \| 3 Baths \| 3718 Sq. Ft.	$3,917,175
3808 Happy Valley Rd, Lafayette, CA 4 Beds \| 4 Baths \| 5596 Sq. Ft.	$4,443,304

Address	Redfin Estimate
3838 Happy Valley Rd, Lafayette, CA 4 Beds \| 3 Baths \| 3926 Sq. Ft.	$3,597,497
3806 Happy Valley Rd, Lafayette, CA 4 Beds \| 5 Baths \| 3776 Sq. Ft.	$3,161,580

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. 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 3828 Happy Valley Rd

Tax history for 3828 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 3828 Happy Valley Rd

More real estate resources