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Introducing 691 Old Jonas Hill Road, an exceptional estate offering 5 bedrooms, 4.5 bathrooms, and over 3 acres of beautifully landscaped grounds surrounded by majestic California oak trees. This one-of-a-kind property blends luxury, comfort, and privacy in a truly remarkable setting. The home features a bright, open floor plan with soaring vaulted wood-plank ceilings that create a warm and inviting atmosphere. The spacious family room flows seamlessly into the gourmet kitchen, making it perfect for both everyday living and entertaining. Highlights include a cozy fireplace, an oversized island, premium chef-grade appliances, and direct access to an expansive patio and hot tub"”perfectly capturing California's coveted indoor-outdoor lifestyle. Designed for elegant living, the home also offers formal living and dining rooms, providing ideal spaces for hosting gatherings and special occasions. The thoughtfully landscaped grounds feature native plants and grasses, creating a serene, low-maintenance environment that blends naturally with the surrounding landscape while offering exceptional privacy. A unique highlight of the property is the custom-engineered indoor sports court, complete with a gym and bonus room, providing endless opportunities for recreation, fitness, and entertainment. Adding to its versatility, the property includes a private-access ADU (Accessory Dwelling Unit) with an upgraded kitchen and its own private deck, making it ideal for guests, multigenerational living, a home office, or potential rental income. 691 Old Jonas Hill Road presents a rare opportunity to own a luxurious estate that combines natural beauty, modern amenities, and unmatched flexibility in an extraordinary private setting.
Property Type(s):
Single Family
| Last Updated | 6/29/2026 | Tract | ACALANES VALLEY |
|---|---|---|---|
| Year Built | 1972 | Garage Spaces | 3.0 |
| County | Contra Costa |
Additional Details
| AIR | Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| CONSTRUCTION | Wood Siding |
| EXTERIOR | Garden |
| FIREPLACE | Yes |
| GARAGE | Attached Garage, Yes |
| HEAT | Forced Air |
| INTERIOR | Breakfast Bar, Eat-in Kitchen |
| LOT | 3.726 acre(s) |
| LOT DESCRIPTION | Back Yard, Cul-De-Sac, Front Yard, Garden |
| LOT DIMENSIONS | 162305 |
| PARKING | Attached, Garage, Garage Door Opener |
| POOL DESCRIPTION | Gas Heat, In Ground |
| STORIES | 2 |
| STYLE | Contemporary |
| SUBDIVISION | ACALANES VALLEY |
Location
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Listed with Summit Realty
The information being provided by Conejo Simi Moorpark Association of REALTORS® (“CSMAR”) is for the visitor's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. Any information relating to a property referenced on this web site comes from the Internet Data Exchange (“IDX”) program of CSMAR. 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. Any information relating to a property, regardless of source, including but not limited to square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by CSMAR and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited.
This IDX solution is (c) Diverse Solutions 2026.
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