4090 Happy Valley Rd

Lafayette, CA 94549

$9,000,000
Last Sold Price
5
Beds
6,211 Sq. Ft.
$1,449 / Sq. Ft.
6,211
Sq. Ft.
$1,449
per Sq. Ft.
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Sold 5/7/26
Sold 5/7/26
a front view of a house with a yard and potted plants

Description

COMING SOON | MAY 1 Live the Dream. Rare Happy Valley Estate. Once-in-a-Generation Opportunity. 4090 HAPPY VALLEY ROAD, LAFAYETTE Main House: 4 Bed + Office + Gym + Media Room | 5 Full + 1 Half Bath | 5,789± Sq. Ft. 1,788± Sq. Ft. 5-Car Garage Guest House: 422± Sq. Ft. with Full Kitchen + Bath Four Covered Loggias: 1,083± Sq. Ft. Combined 2.64± Acre Parcel | Rebuilt in 2017 | Happy Valley, Lafayette Gated. Hidden. Breathtaking. Tucked behind a private, tree-lined entrance on one of Happy Valley's...COMING SOON | MAY 1 Live the Dream. Rare Happy Valley Estate. Once-in-a-Generation Opportunity. 4090 HAPPY VALLEY ROAD, LAFAYETTE Main House: 4 Bed + Office + Gym + Media Room | 5 Full + 1 Half Bath | 5,789± Sq. Ft. 1,788± Sq. Ft. 5-Car Garage Guest House: 422± Sq. Ft. with Full Kitchen + Bath Four Covered Loggias: 1,083± Sq. Ft. Combined 2.64± Acre Parcel | Rebuilt in 2017 | Happy Valley, Lafayette Gated. Hidden. Breathtaking. Tucked behind a private, tree-lined entrance on one of Happy Valley's most sought-after addresses, this is the kind of estate that stops you in your tracks. Designed by architect Alan Page, rebuilt in 2017 by McKenzie Gray, and set on 2.64± acres of beautifully landscaped grounds — pool, outdoor kitchen, loggias, water features, bocce court, and guest house included — it delivers resort-style living on a scale rarely available anywhere in the East Bay. Private showings begin May 1. Opportunities like this don't wait.

Listing Agent

  1. Dana Green

    Dana Green

    Listing Agent

    Compass

    DRE #01482454

    P: (925)-339-1918

    CallText

Property Details for 4090 Happy Valley Road

City
LAFAYETTE
Dist Neighborhood Subdiv
HAPPY VALLEY
Building Type
Detached
Property Sub Type
Detached
Style
Custom
Garage Spaces
5
Garage/Parking
Attached, Int Access From Garage, Side Yard Access, Tandem, 24'+ Deep Garage
View
Trees/Woods
LISTING UPDATED: 05/08/2026 04:14 PM

Property Details for 4090 Happy Valley Road

StatusSold
MLS #41131390
Days on Compass8
Taxes-
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Detached
Year Built1948
Lot Size2.64 AC / 114,998 SF
CountyContra Costa County
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Location

Listing Courtesy of Compass, Dana Green, DRE #01482454

Sold By Compass, Glenn Beaubelle, DRE #00678426

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Building Information for 4090 Happy Valley Road

Stories2Year Built1948Building Size-Lot Size2.64 AC / 114,998 SF

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$53,327 per month

30 year fixed, 6.36% Interest

Principal and Interest

$44,848

Property Taxes

$8,479

HOA Dues

$0

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Property Information for 4090 Happy Valley Road

Features
Feature Details
  • Fireplaces: 3
  • FIREPLACES: Gas (FireplaceFeatures), Living Room, Stone, Woodburning, Other
  • Flooring: Hardwood, Stone (Marble, Slate etc.
  • Garage: Yes
  • Laundry: 220 Volt Outlet, Dryer, Laundry Room, Washer, Cabinets, Sink
  • Pool Type: In Ground, Pool Sweep, Pool/Spa Combo
  • Pool: Private
Room Details
  • Rooms Total: 14
  • Additional Rooms: Bonus / Hobby Room, Den / Study / Office, Guest House, Other, Storage, Laundry Room
  • Kitchen Features: 220 Volt Outlet, Breakfast Bar, Breakfast Nook, Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Disposal, Gas Range/Cooktop, Ice Maker Hookup, Kitchen Island, Microwave, Pantry, Range/Oven Built-in, Refrigerator, Updated Kitchen
  • Bedrooms Count: 5
  • Bathrooms Total Count: 6.0
  • Room Additional: BonusRoom, GuestHouse, Office, Storage, Other, Great Room, Temp Controlled Room, Wine Cellar
  • BATH NON-PRMY INCLUDE: Shower Over Tub, Skylight(s), Solid Surface, Stall Shower, Updated Baths, Stone, Walk-In Closet(s), Window
  • BATH-PRIMARY INCLUDES: Solid Surface, Stall Shower, Tub with Jets, Updated Baths, Double Vanity, Dual Flush Toilet, Multiple Shower Heads, Stone, Walk-In Closet(s), Window
  • Bathrooms Half: 1
  • ADU Y/N: No
Utility Details
  • Cooling: Central Air, Other
  • Heating: Electric, Forced Air 2 Zns or More, Heat Pump, Radiant, Other, Fireplace(s)
  • Solar: None
Lot / Property Details
Home Owners Association
  • HOA: No
Property Details
  • Additional Equipment: Fire Sprinkler System, Garage Door Opener, Security Alarm - Owned, Sound System, Window Coverings, Tankless Water Heater, Carbon Mon Detector, Security Gate, Security System Owned, Smoke Detector(s), Video System, Generator
  • City Transfer Tax: No
  • Construction Status: Existing
  • Exterior: Stone, Stucco
  • Foundation: Other, Raised
  • Level - Lower: 1 Bath, Other
  • Lot Description: Level, Premium Lot, Back Yard, Front Yard, Landscaped, Security Gate
  • Lot Sq Ft Apx: 114998
  • Lot Size Square Feet: 114998.0
  • Roof: Composition Shingles, Metal
  • Sq Ft Apx: 6211
  • Stories: Two Story
  • Street Level: 4 Bedrooms, 0.5 Bath, 4 Baths, Primary Bedrm Retreat, Laundry Facility, Other, Main Entry
  • Yard Description: Back Yard, Fenced, Front Yard, Garden/Play, Patio Covered, Side Yard, Sprinklers In Rear, Sprinklers Front, Sprinklers Side, Fenced Front Yard, Full Fence, Landscape Back, Landscape Front, Landscaped, Swimming Pool
  • Year Built: 1948
  • Acres: 2.64
Location Details
  • Elementary School District: Lafayette (925) 280-3900
  • FIPS Code: 06013
  • Parcel Number: 246-010-027
  • Printed Neighborhood Rpt: No
  • Board ID: CONTRA COSTA
Additional Information
Additional Information
  • Fireplace: Yes
  • Elementary School District: Acalanes (925) 280-3900
  • High School District: Acalanes (925) 280-3900

Property History for 4090 Happy Valley Road

DateEvent & SourcePriceAppreciation
May 7, 2026

Sold

CRMLS #41131390

$9,000,000—
May 7, 2026

Sold

EBRD #41131390

$9,000,000—
May 7, 2026

Sold

MLSListings #CC41131390

$9,000,000—
DateEvent & SourcePrice
05/07/2026

Sold

CRMLS #41131390

$9,000,000
05/07/2026

Sold

EBRD #41131390

$9,000,000
05/07/2026

Sold

MLSListings #CC41131390

$9,000,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 4090 Happy Valley Road

Taxable ValueLand$6,120,000Additions$3,054,900Total$9,174,900
Tax Record2025$101,745 ($8,479 / month)
Home Facts
Beds4Total Finished SqFt5,435 SqFtAbove Grade Finished SqFt5,435 SqFtStories1Lot Size114,998 SqFtStyleSingle Family ResidenceYear Built1948Year Renovated2015CountyCONTRA COSTAAPN246-010-027-0

Schools near 4090 Happy Valley Road

This home is within Acalanes Union High School District.
Rating
School
Type
Grades
Distance
Happy Valley Elementary School
Public - K to 5
M. H. Stanley Middle School
Public - 6 to 8
Acalanes High School
Public - 9 to 12
Acalanes Center For Independent Study
Public - 9 to 12
Rating
School
Distance
Happy Valley Elementary School
PublicK to 5

M. H. Stanley Middle School
Public6 to 8

Acalanes High School
Public9 to 12

Acalanes Center For Independent Study
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Compass, Dana Green, DRE #01482454

Based on information from one of the following Multiple Listing Services: San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.