NOT LISTED FOR SALE

3941 Happy Valley Rd Lafayette, CA 94549

Happy Valley Neighborhood

Estimated Value: $8,671,000 - $9,398,100

4 Beds
5.5 Baths
8,620 Sq Ft
$1,039/Sq Ft Est. Value

Last Sold July 19, 2024

Last sale price $8,495,000 $985 Per Sq Ft

Est. 5% increase in value since last sale

Current estimated payment $57,272/month

125 Days on Market

Highlights

  • Home Theater
  • In Ground Pool
  • Custom Home
  • Happy Valley Elementary School Rated A
  • Solar Power System
  • Updated Kitchen

About This Home

As of July 2024

This retreat sits on a dual lot at the end of a private drive, a world away from life’s cares. The principal lot (3941 Happy Valley Road) is 2.3 acres, adjoining the undeveloped second lot (3943, .98 acre), now a garden, which can be preserved as open space or developed or sold separately. Entertain those of any age with a tennis court, basketball court, batting cage, swimming pool with waterfalls, slide, climbing wall, and water jets, golf simulator, putting green and bocce court. Relax in the massage room, two Jacuzzi spas (one in a covered grotto), hair salon, or by the outdoor fire pit, or enjoy a movie in the spacious professional theater with reclining seating. The home, with vaulted ceilings throughout, offers separate gathering areas. One melds the gourmet kitchen (with elite appliances), dining room, and spacious living room (with built-in 80” television and surround sound). Move to the other side of the house to the game room, equipped with six televisions and ample space to play pool, ping-pong, or cards. Wet bars are found on both sides of the house, and outdoor patios and terraces abound. The four bedrooms are spacious, and the luxurious primary suite offers a massive walk-in closet and an en-suite bath with every amenity.

Last Agent to Sell the Property

Ann Newton Cane

Golden Gate Sotheby's Int'l Re License #02084093 Listed on: 02/01/2024

Golden Gate Sotheby's Int'l Re

Last Buyer's Agent

Ann Marie Nugent

Compass License #01230832

Compass

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $91,730

Year Built

  • Built in 2012

Lot Details

  • 3.28 Acre Lot
  • Landscaped
  • Garden
  • Back and Front Yard

Parking

  • 3 Car Attached Garage
  • Garage Door Opener
  • Parking Lot

Home Design

  • Custom Home
  • Stone Siding
  • Stucco

Interior Spaces

  • 2-Story Property
  • 3 Fireplaces
  • Gas Fireplace
  • Family Room
  • Dining Area
  • Home Theater
  • Bonus Room
  • Utility Room
  • Security Gate

Kitchen

  • Updated Kitchen
  • Double Oven
  • Gas Range
  • Microwave
  • Dishwasher
  • Kitchen Island
  • Stone Countertops
  • Disposal

Flooring

  • Wood
  • Carpet
  • Tile

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Fireplace in Primary Bedroom

Laundry

  • Dryer
  • Washer

Pool

  • In Ground Pool
  • Outdoor Pool
  • Spa

Additional Features

  • Solar Power System
  • Zoned Heating and Cooling

Listing and Financial Details

  • Assessor Parcel Number 2461200202

Community Details

Overview

  • No Home Owners Association
  • Contra Costa Association
  • Built by YoungandBurton
  • Happy Valley Subdivision

Recreation

  • Community Pool or Spa Combo

Home Details

Home Type

Single Family

Est. Annual Taxes

$91,730

Year Built

Built in 2012

Lot Details

0

Parking

3

Listing Details

  • Stories: 2
  • Year Built: 2012
  • Property Sub Type: Single Family Residence
  • Prop. Type: Residential
  • Lot Size Acres: 3.28
  • Subdivision Name: HAPPY VALLEY
  • Directions: Mt. Diablo Rd to Happy Valley Rd
  • Architectural Style: Custom
  • Carport Y N: No
  • Garage Yn: Yes
  • Unit Levels: Two Story
  • New Construction: No
  • Power Production Type: Photovoltaics
  • ResoPropertyType: Residential
  • Special Features: VirtualTour

Interior Features

  • Flooring: Hardwood, Tile, Carpet
  • Private Spa: Yes
  • Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Microwave, Dryer, Washer
  • Full Bathrooms: 5
  • Total Bedrooms: 4
  • Fireplace Features: Gas, Master Bedroom, Other
  • Fireplaces: 3
  • Fireplace: Yes
  • Interior Amenities: Bonus/Plus Room, Dining Area, Family Room, Media, Utility Room, Stone Counters, Kitchen Island, Updated Kitchen
  • Room Kitchen Features: Counter - Stone, Dishwasher, Double Oven, Garbage Disposal, Gas Range/Cooktop, Island, Microwave, Updated Kitchen, Other

Exterior Features

  • Lot Features: Level, Premium Lot, Front Yard, Landscape Back, Landscape Front, Security Gate
  • Pool Features: In Ground, Pool/Spa Combo, Outdoor Pool
  • Pool Private: Yes
  • Builder Name: YoungandBurton
  • Construction Type: Stone, Stucco
  • Exterior Features: Backyard, Garden, Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Landscape Back, Landscape Front, Private Entrance, Yard Space
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 3
  • Attached Garage: Yes
  • Covered Parking Spaces: 3
  • Parking Features: Attached, Guest, Parking Lot, Garage Door Opener

Utilities

  • Heating: Zoned
  • Utilities: All Public Utilities
  • Cooling: Zoned
  • Laundry Features: Dryer, Laundry Room, Washer
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: Other Solar
  • Sewer: Public Sewer

Condo/Co-op/Association

  • Association Name: CONTRA COSTA
  • Association: No

Schools

  • Senior High School District: Acalanes (925) 280-3900

Lot Info

  • Lot Size Sq Ft: 142876
  • Parcel Number: 2461200202
  • ResoLotSizeUnits: Acres

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Feb 1, 2024
Closed on
Jul 18, 2024
Sold by
Mastrov Family Living Trust and Mastrov Mark S
Bought by
Plank Matthew D and Martin Chelsea M
Seller's Agent
Ann Newton Cane
Golden Gate Sotheby's Int'l Re
Buyer's Agent
Ann Marie Nugent
Compass
List Price
$9,495,000
Sold Price
$8,495,000
Premium/Discount to List
-$1,000,000
-10.53%
Views
230
Current Estimated Value
$8,960,033

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$465,033
Avg. Annual Appreciation
5.47%
Original Mortgage
$5,521,750
Outstanding Balance
$5,464,248
Interest Rate
6.4%
Mortgage Type
New Conventional
Estimated Equity
$3,495,785

Purchase Details

Closed on
Oct 24, 2016
Sold by
Mastrov Mark S and Mastrov Mindee S
Bought by
Mastrov Mark S and Mastrov Mindee S

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$3,250,000
Interest Rate
3.5%
Mortgage Type
New Conventional

Purchase Details

Closed on
Jan 12, 2006
Sold by
Read Steven M and Read Mary Ann
Bought by
Mastrov Mark S and Mastrov Mindee

Purchase Details

Closed on
Mar 19, 2002
Sold by
Read Steven M and Read Mary Ann
Bought by
Read Steven M and Read Mary Ann

Purchase Details

Closed on
Aug 18, 1995
Sold by
Placzek F Anthony and Placzek Cecilia M
Bought by
Placzek Frederick Anthony and Placzek Cecilia Mcguire
Source: Public Records

Range of Values:

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Average Value
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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
Plank Matthew D $8,495,000 First American Title
Mastrov Mark S -- North American Title
Mastrov Mark S $4,350,000 Alliance Title Company
Read Steven M -- --
Placzek Frederick Anthony -- --
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Open Plank Matthew D $5,521,750
Previous Owner Mastrov Family Living Trust $5,000,000
Previous Owner Mastrov Mark S $3,250,000
Previous Owner Mastrov Mark S $3,500,000
Source: Public Records

Property History

Date Event Price Change Sq Ft Price
02/04/2025 02/04/25 Off Market $8,495,000 -- --
07/19/2024 07/19/24 Sold $8,495,000 0.0% $985 / Sq Ft
06/05/2024 06/05/24 Pending -- -- --
05/17/2024 05/17/24 Price Changed $8,495,000 -10.5% $985 / Sq Ft
02/01/2024 02/01/24 For Sale $9,495,000 -- $1,102 / 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 $91,730 $6,995,000 $2,000,000 $4,995,000
2024 $87,516 $8,297,579 $3,454,010 $4,843,569
2023 $87,516 $7,884,883 $3,386,285 $4,498,598
2022 $86,193 $7,730,279 $3,319,888 $4,410,391
2021 $66,546 $6,000,000 $3,000,000 $3,000,000
2019 $67,012 $5,900,000 $2,533,847 $3,366,153
2018 $64,814 $5,800,000 $2,490,901 $3,309,099
2017 $64,157 $5,725,000 $2,458,691 $3,266,309
2016 $64,318 $5,722,500 $2,457,617 $3,264,883
2015 $57,852 $5,200,000 $2,233,222 $2,966,778
2014 $58,614 $5,200,000 $1,500,000 $3,700,000
Source: Public Records

Agents Affiliated with this Home

  • Ann Newton Cane

    Seller's Agent in 2024

    Ann Newton Cane

    Golden Gate Sotheby's Int'l Re

    (415) 999-0253

    19 in this area

    111 Total Sales

    Ann Newton Cane
    Section Image
  • Ann Marie Nugent

    Buyer's Agent in 2024

    Ann Marie Nugent

    Compass

    (925) 260-8883

    1 in this area

    162 Total Sales

    Ann Marie Nugent
    Section Image
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Map

Source: Contra Costa Association of REALTORS®

MLS Number: 41048945

Contra Costa Association of REALTORS®

APN: 246-120-020-2

California Contra Costa County Lafayette 94549 Happy Valley

3941 Happy Valley Rd, Lafayette, CA

This home is located at 3941 Happy Valley Rd, Lafayette, CA 94549 since 01 February 2024 and is currently estimated at $8,960,033, approximately $1,039 per square foot. This property was built in 2012. 3941 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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