NOT LISTED FOR SALE

3666 Happy Valley Rd Lafayette, CA 94549

Happy Valley Neighborhood

Estimated Value: $5,803,000 - $6,387,428

6 Beds
7.5 Baths
6,890 Sq Ft
$886/Sq Ft Est. Value

Last Sold March 22, 2024

Last sale price $6,050,000 $878 Per Sq Ft

Est. 1% increase in value since last sale

Current estimated payment $37,848/month

15 Days on Market

Highlights

  • Guest House
  • Home Theater
  • Home fronts a creek
  • Happy Valley Elementary School Rated A
  • Solar Heated In Ground Pool
  • RV or Boat Parking

About This Home

As of March 2024

Contemporary luxury meets transitional refinement on this approximately 1.5 acre flat “lot of your dreams” nestled in coveted Happy Valley. Sophisticated modern double doors welcome you into an impressive entry with a glass, temperature-controlled 324 bottle wine room, soaring wood beamed ceilings & custom entertaining bar. A state-of-the-art kitchen with honed Estremos Portuguese marble partners with an exquisite, light filled adjacent formal dining room. Entertainment spaces abound with a family room and top floor bonus room boasting a fully-equipped theater, separated snack bar with beverage refrigerators & adjacent guest suite with its own entrance. A primary retreat showcases a luxurious Calacatta marble bathroom and leads to a private patio with tranquil fountain & separate studio. Three secondary bedrooms each with newly designed en suite bathrooms. A guest cottage features an on-trend kitchen, laundry, bed/bath & living space. The resort style yard is centered around an over-sized pool/spa surrounded by 360-degree shade umbrellas, built-in pavilion, fire table, outdoor bathroom, sport court, bocce ball, Zen Garden, play structure, dramatic fountains, mature gardens & well. Minutes from Highway 24, trails, BART, award winning schools & downtown Lafayette.

Last Agent to Sell the Property

Julie Dudum Del Santo

Dudum Real Estate Group License #01290985 Listed on: 02/23/2024

Dudum Real Estate Group

Co-Listed By

Lisa Tichenor

Dudum Real Estate Group License #01478540

Last Buyer's Agent

Kelley Krock

Redfin License #01896209

Redfin

Property Details

Home Type

  • Multi-Family

Est. Annual Taxes

  • $54,932

Year Built

  • Built in 1950

Lot Details

  • 1.47 Acre Lot
  • Home fronts a creek
  • Private Lot
  • Secluded Lot
  • Paved or Partially Paved Lot
  • Sprinklers Throughout Yard
  • Garden
  • Back Yard Fenced and Front Yard

Parking

  • 3 Car Direct Access Garage
  • Electric Vehicle Home Charger
  • Side Facing Garage
  • Garage Door Opener
  • Off-Street Parking
  • RV or Boat Parking

Home Design

  • Duplex
  • Contemporary Architecture
  • Traditional Architecture
  • Brick Exterior Construction
  • Raised Foundation
  • Shingle Roof
  • Composition Shingle
  • Stucco

Interior Spaces

  • Multi-Level Property
  • Wet Bar
  • Sound System
  • Raised Hearth
  • Self Contained Fireplace Unit Or Insert
  • Brick Fireplace
  • Double Pane Windows
  • Window Screens
  • Family Room with Fireplace
  • 3 Fireplaces
  • Family Room Off Kitchen
  • Living Room with Fireplace
  • Formal Dining Room
  • Home Theater
  • Bonus Room

Kitchen

  • Updated Kitchen
  • Eat-In Kitchen
  • Breakfast Bar
  • Double Self-Cleaning Oven
  • Gas Range
  • Microwave
  • Dishwasher
  • Kitchen Island
  • Stone Countertops
  • Disposal

Flooring

  • Wood
  • Carpet
  • Tile

Bedrooms and Bathrooms

  • 6 Bedrooms
  • Fireplace in Primary Bedroom
  • In-Law or Guest Suite

Laundry

  • Dryer
  • Washer
  • 220 Volts In Laundry

Home Security

  • Security System Owned
  • Carbon Monoxide Detectors
  • Fire and Smoke Detector

Pool

  • Solar Heated In Ground Pool
  • Outdoor Pool
  • Spa
  • Pool Cover

Utilities

  • Zoned Heating and Cooling
  • 220 Volts in Kitchen
  • Power Generator
  • Tankless Water Heater
  • Gas Water Heater

Additional Features

  • Solar Power System
  • Outdoor Storage
  • Guest House

Community Details

  • No Home Owners Association
  • 6,890 Sq Ft Building
  • Contra Costa Association
  • Happy Valley Subdivision

Listing and Financial Details

  • Assessor Parcel Number 2441600067

Property Details

Home Type

Multi-Family

Est. Annual Taxes

$54,932

Year Built

Built in 1950

Lot Details

0

Parking

3

Listing Details

  • Year Built: 1950
  • Property Sub Type: Single Family Residence
  • Prop. Type: Residential
  • Lot Size Acres: 1.47
  • Co List Office Mls Id: CCDUDREG
  • Subdivision Name: HAPPY VALLEY
  • Directions: Mount Diablo to Happy Valley
  • Architectural Style: Contemporary, Traditional
  • Carport Y N: No
  • Garage Yn: Yes
  • Unit Levels: Multi/Split
  • New Construction: No
  • Power Production Type: Photovoltaics
  • ResoPropertyType: Residential
  • Special Features: VirtualTour

Interior Features

  • Flooring: Hardwood Flrs Throughout, Tile, Carpet
  • Spa Features: Private
  • Private Spa: Yes
  • Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Microwave, Refrigerator, Self Cleaning Oven, Dryer, Gas Water Heater, Tankless Water Heater
  • Full Bathrooms: 7
  • Total Bedrooms: 6
  • Fireplace Features: Brick, Family Room, Insert, Living Room, Master Bedroom, Raised Hearth
  • Fireplaces: 3
  • Fireplace: Yes
  • Interior Amenities: Bonus/Plus Room, Dining Area, Family Room, Formal Dining Room, In-Law Floorplan, Kitchen/Family Combo, Media, Storage, Breakfast Bar, Stone Counters, Eat-in Kitchen, Kitchen Island, Pantry, Updated Kitchen, Wet Bar, Sound System
  • Window Features: Double Pane Windows, Screens, Window Coverings
  • Room Kitchen Features: 220 Volt Outlet, Breakfast Bar, Counter - Stone, Dishwasher, Double Oven, Eat In Kitchen, Garbage Disposal, Gas Range/Cooktop, Island, Microwave, Pantry, Refrigerator, Self-Cleaning Oven, Updated Kitchen, Wet Bar

Exterior Features

  • Roof: Shingle
  • Fencing: Fenced, Back Yard
  • Lot Features: 2 Houses / 1 Lot, Level, Premium Lot, Secluded, Front Yard, Landscape Back, Landscape Front, Paved, Pool Site, Private
  • Pool Features: Electric Heat, In Ground, Pool Cover, Solar Heat, Solar Pool Owned, Outdoor Pool
  • Pool Private: Yes
  • Waterfront Features: Creek
  • Waterfront: Yes
  • Construction Type: Brick, Composition Shingles, Stucco
  • Exterior Features: Backyard, Garden, Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Sprinklers Back, Sprinklers Front, Sprinklers Side, Storage
  • Foundation Details: Raised
  • Other Structures: Guest House
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 3
  • Attached Garage: Yes
  • Covered Parking Spaces: 3
  • Parking Features: Attached, Int Access From Garage, Off Street, RV/Boat Parking, Side Yard Access, Electric Vehicle Charging Station(s), Garage Faces Side, Garage Door Opener

Utilities

  • Heating: Zoned, Fireplace Insert, Fireplace(s)
  • Cooling: Ceiling Fan(s), Zoned
  • Laundry Features: 220 Volt Outlet, Dryer, Laundry Room, Washer, Cabinets, Sink
  • Security: Security Alarm - Owned, Carbon Monoxide Detector(s), Double Strapped Water Heater, Smoke Detector(s), Closed Circuit Camera(s)
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: 220 Volts in Kitchen, Generator
  • Electricity On Property: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Condo/Co-op/Association

  • Association Name: CONTRA COSTA
  • Association: No

Lot Info

  • Lot Size Sq Ft: 64033
  • Parcel Number: 2441600067
  • ResoLotSizeUnits: Acres

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Feb 23, 2024
Closed on
Mar 14, 2024
Sold by
Taira Tom and Taira Stephanie
Bought by
Brelig Jonathan W and Vaughan Allison T
Seller's Agent
Julie Dudum Del Santo
Dudum Real Estate Group
Buyer's Agent
Kelley Krock
Redfin
List Price
$6,250,000
Sold Price
$6,050,000
Premium/Discount to List
-$200,000
-3.2%
Views
150
Current Estimated Value
$6,106,107

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$56,107
Avg. Annual Appreciation
0.67%

Purchase Details

Closed on
Mar 26, 2015
Sold by
Miu Lana
Bought by
Tair Tom and Lacrosse Stephanie

Purchase Details

Closed on
Mar 19, 2004
Sold by
Mcgill Lana and Miu Lana
Bought by
Miu Lana

Purchase Details

Closed on
Dec 11, 2003
Sold by
Mcgill Stephen P and Mcgill Lana
Bought by
Mcgill Lana

Purchase Details

Closed on
Sep 26, 2001
Sold by
Wolpa Mark E and Dunn Wolpa Linda S
Bought by
Mcgill Stephen P and Mcgill Lana

Purchase Details

Closed on
Apr 3, 1997
Sold by
Lanctot Robert E and Kupfrian Phoebe Force
Bought by
Wolpa Mark and Wolpa Linda

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$600,000
Interest Rate
5.95%
Mortgage Type
Purchase Money Mortgage
Source: Public Records

Range of Values:

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List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Brelig Jonathan W $6,050,000 Old Republic Title
Tair Tom $4,100,000 Chicago Title Company
Miu Lana -- --
Mcgill Lana -- --
Mcgill Stephen P -- Placer Title Company
Wolpa Mark $879,500 Old Republic Title Company
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Taira Tom $2,561,000
Previous Owner Taira Tom $2,555,000
Previous Owner Wolpa Mark E $250,000
Previous Owner Wolpa Mark E $204,000
Previous Owner Wolpa Mark E $600,000
Source: Public Records

Property History

Date Event Price Change Sq Ft Price
02/04/2025 02/04/25 Off Market $6,050,000 -- --
03/22/2024 03/22/24 Sold $6,050,000 -3.2% $878 / Sq Ft
03/09/2024 03/09/24 Pending -- -- --
02/23/2024 02/23/24 For Sale $6,250,000 -- $907 / Sq Ft
Source: Contra Costa Association of REALTORS®

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $54,932 $6,171,000 $3,570,000 $2,601,000
2024 $54,025 $4,850,647 $2,356,567 $2,494,080
2023 $54,025 $4,755,537 $2,310,360 $2,445,177
2022 $53,209 $4,662,292 $2,265,059 $2,397,233
2021 $51,670 $4,570,876 $2,220,647 $2,350,229
2019 $51,221 $4,435,303 $2,154,782 $2,280,521
2018 $49,210 $4,330,690 $2,112,532 $2,218,158
2017 $48,366 $4,245,775 $2,071,110 $2,174,665
2016 $47,549 $4,162,525 $2,030,500 $2,132,025
2015 $30,000 $2,612,000 $1,481,452 $1,130,548
2014 $28,586 $2,453,500 $1,391,556 $1,061,944
Source: Public Records

Agents Affiliated with this Home

  • Julie Dudum Del Santo

    Seller's Agent in 2024

    Julie Dudum Del Santo

    Dudum Real Estate Group

    (925) 818-5500

    10 in this area

    22 Total Sales

    Section Image

  • L

    Seller Co-Listing Agent in 2024

    Lisa Tichenor

    Dudum Real Estate Group

    (925) 285-1093

    4 in this area

    37 Total Sales

    Section Image

  • K

    Buyer's Agent in 2024

    Kelley Krock

    Redfin

    Section Image
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Map

Source: Contra Costa Association of REALTORS®

MLS Number: 41050802

Contra Costa Association of REALTORS®

APN: 244-160-006-7

California Contra Costa County Lafayette 94549 Happy Valley

3666 Happy Valley Rd, Lafayette, CA

This home is located at 3666 Happy Valley Rd, Lafayette, CA 94549 since 23 February 2024 and is currently estimated at $6,106,107, approximately $886 per square foot. This property was built in 1950. 3666 Happy Valley Rd is a home located in Contra Costa County with nearby schools including Happy Valley Elementary School, M.H. Stanley Middle School, and Acalanes High School.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Contra Costa Association of REALTORS® Bay East ©2025. BridgeMLS ©2025, CCAR ©2025. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, BridgeMLS or CCAR MLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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