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333 Quinterra Ln Danville, CA 94526
$7,500,000 7 beds, 7 baths
5, 593 sqft
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Photo of Jesse Hlubik

Jesse Hlubik REALTOR® - Sales Associate 310-890-6928 m
310-890-6928 o
Lic#: 01801928
NRDS ID: 207054480
Jesse@HomeSearchLA.com
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Lic#: 01801928
NRDS ID: 207054480
Jesse@HomeSearchLA.com
Sherman Oaks Office
14141 Ventura Blvd., Ste. 8
Sherman Oaks, CA 91423
Phone: 818-528-3200
Fax: 818-386-9007
Sherman Oaks 14141 Ventura Blvd., Ste. 8
Sherman Oaks, CA 91423
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Agent Remarks

Welcome to The Hartz Estate, a truly one-of-a-kind residence steeped in Danville’s early history. Once home to John Hartz, one of the town’s pioneering founders, this stately Colonial-style home is a rare blend of heritage, elegance and potential—set on an ultra-private, flat 1.58-acre lot just minutes from downtown Danville. Framed by a gated circular driveway and lush landscaping, the estate exudes timeless character. Inside, the main residence offers formal living, dining, and family rooms showcasing exquisite millwork and traditional craftsmanship. The spacious kitchen at the rear of the home offers serene views of the tranquil grounds and incredible expansion potential for a luxury kitchen remodel or great room concept. Upstairs, two different staircases lead to five bedrooms, including a versatile room currently used as a home office. Beyond the main home, the estate features an impressive suite of auxiliary structures: a one-bedroom ADU above the garage, a large pool house with a second kitchen, ideal for entertaining, and a 5,000+ bottle wine cellar. The large, flat lot presents a rare opportunity for subdivision or a complete reimagination into a contemporary family compound.

Listing Details

Property type: Single Family Residence (Single Family)
Status: Pending
MLS# 41098122
List price is $7,500,000
Beds: 7
Baths: 7 (5 full) (2 half)
Family Room,Living Room,Primary Bedroom fireplaces
Built in 1959
5,593 sqft
2 stories
1.58 acres
Lot size: 1.5800
Subdivision: WESTSIDE DANVILL
County: Contra Costa
Property style: Colonial
Construction: Wood Siding
Interior features: Breakfast Area,Eat-in Kitchen
Parking description: Garage
Lot description: Back Yard,Front Yard,Secluded,Street Level
Heating/cooling: Central Air
Heating description: Forced Air

Last Updated: 6/3/2025

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The style of this listing is Colonial.
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Lat/Long: 37.817524, -122.005093.
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Listing Agent: Taso Tsakos
Lic#: 01801928
Office Name: Sherman Oaks

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Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

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Population by Gender

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Photo of Jesse Hlubik

Jesse Hlubik REALTOR® - Sales Associate 310-890-6928 m
310-890-6928 o
Lic#: 01801928
NRDS ID: 207054480
Jesse@HomeSearchLA.com
Text Me
Call My Cell
Call My Office
Lic#: 01801928
NRDS ID: 207054480
Jesse@HomeSearchLA.com

Sherman Oaks Office
14141 Ventura Blvd., Ste. 8
Sherman Oaks, CA 91423
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© 2025 Berkshire Hathaway HomeServices California Properties (BHHSCP) is a member of the franchise system of BHH Affiliates LLC. BHHS and the BHHS symbol are registered service marks of Columbia Insurance Company, a Berkshire Hathaway affiliate. BHH Affiliates LLC and BHHSCP do not guarantee accuracy of all data including measurements, conditions, and features of property. Information is obtained from various sources and will not be verified by broker or MLS. Buyer is advised to independently verify the accuracy of that information.
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