Contra Costa County Homes with 2 Houses / 1 Lot Lot description

Welcome to Contra Costa County, a vibrant gem nestled in the heart of Northern California. Renowned for its picturesque landscapes, rich history, and diverse communities, Contra Costa offers an exceptional quality of life that attracts families, professionals, and retirees alike. With its proximity to the San Francisco Bay Area and easy access to major highways, residents enjoy the perfect blend of suburban tranquility and urban convenience.

One of the most unique and appealing real estate opportunities in this region is the chance to own a property featuring two houses on one lot. Imagine the possibilities! Whether you’re looking for a multi-generational living arrangement, a rental investment, or simply extra space for guests, these properties offer flexibility and value that is hard to match. Each house can serve a distinct purpose, from a cozy family home to a stylish guest suite or even a dedicated workspace.

The homes themselves are often designed with modern amenities while retaining the charm and character that the area is known for. Surrounded by beautiful parks, top-rated schools, and an array of shopping and dining options, living in Contra Costa County means you can enjoy the best of both worlds.

Explore the diverse neighborhoods, each with its own unique flair, and discover why so many choose to call Contra Costa home. With two houses on one lot, the possibilities are endless—come and find your dream property today!

Newest Contra Costa County Homes with 2 Houses / 1 Lot Lot description

$499,900

3 Beds ⋅ 2 Baths ⋅ 41152118 MLS

Beautifully fully remodeled 2 bed, 1 bath home offering modern finishes and a bright open layout. This turnkey property features an updated kitchen, stylish fixtures, and contemporary upgrades throughout. The property also includes a brand-new modern studio, perfect for guests, extended family, or potential rental income. Conveniently located near the San Francisco Bay, with easy access to parks, shopping, dining, and commuter routes. A versatile and move-in ready opportunity.

1512 15th St, San Pablo

Listing courtesy of Diego Irigoyen from Realty One Group Elite. 510-415-2305

$1,200,000

4 Beds ⋅ 1 Baths ⋅ 41152015 MLS

TWO HOUSES/ONE LOT. This property offers ranch-style living with easy access to freeway/shopping/restaurants/schools & vibrant Downtown Martinez. Two homes on property : Tax roll reflects 2777 Franklin Canyon Road (Pink House) - 2775 Franklin Canyon Road (Blue House) is newer home - unaware if built with permits. Attached 2-car garage with storage plus attached drive-through garage. Separate utility meters. 2777 solar is newer and leased; Anderson dual-pane windows are newer. Entry floor is a storage basement. Both homes are on septic and well water. Level pastures behind Blue House ideal for horses. Ample room for Trailers/RV and Boat parking. Extended acreage on left of extended FCR straight to neighborhood gated properties.

Martinez

Listing courtesy of Roxi Leal from Muir West Realty. 925-229-1207

$2,240,000

5 Beds ⋅ 5 Baths ⋅ 41151991 MLS

EXTRAORDINARY LAFAYETTE HILLTOP ESTATE | INFINITY POOL | PRIVATE VINEYARD | PANORAMIC VIEWS | SEPARATE ADU! Experience resort-style luxury on approximately 3.1 spectacular acres in the Lafayette hills! make offers https://bit.ly/altaln3252 This extraordinary private estate features a breathtaking saltwater infinity-edge pool, spa, terraced hillside vineyard, sweeping valley views, and a separate 1,100 sq. ft. ADU with 2 bedrooms and 1 bathroom. A rare combination of luxury, privacy, and versatility! The striking 3,418 sq. ft. mid-century main residence offers 4 bedrooms, 3.5 bathrooms, dramatic architectural rooflines, soaring vaulted ceilings, expansive windows, and beautiful hillside views. Enjoy spacious living areas, a fireplace, formal dining, and an impressive billiards room with wet bar and direct deck access. The generous primary suite features French doors opening to the outdoors. Step outside into your own private resort! The spectacular infinity pool overlooks the surrounding hills, complemented by a spa, fire pit, and fully equipped outdoor entertaining pavilion featuring a built-in BBQ, refrigerator, ice maker, dishwasher, television, sound system, and poolside bathroom/changing area. Perfect for unforgettable gatherings or peaceful evenings enjoying the views! Beautifully landscaped grounds showcase majestic oak trees, towering redwoods, Japanese maples, colorful gardens, and a picturesque private vineyard just steps from the pool. The separate 2-bedroom, 1-bath ADU offers exceptional flexibility for guests, extended living, or additional uses. Additional highlights include a wine cellar, 3-car garage at the main residence, and 2-car garage beneath the ADU. Enjoy the tranquility of a secluded hilltop retreat while remaining conveniently close to downtown Lafayette, shopping, restaurants, BART, and major commuter routes. An exceptional opportunity to own a private Lafayette estate offering breathtaking views, resort-style amenities, expansive acreage, and two residences. This remarkable property must be experienced in person. Square footage is not verified bury to verify for them selves.

3252 Alta Ln, Lafayette

Listing courtesy of Angela Hern from Keller Williams Realty. 925-785-5933

$589,800

4 Beds ⋅ 2 Baths ⋅ 41151967 MLS

Welcome to this well-maintained duplex offering an excellent opportunity for owner-occupant, multi generational living or investment. Front home consists of a 3 Bedroom 1 Bath very cute home with its own private deck. Back home is a 1 Bedroom 1 Bath detached home. This unit sits along t beautiful creek setting and has its own yard space. The front home has been freshly painted on the inside, new carpet and electrical fixtures. Sewer Lateral is not in compliant. City of San Pablo Re-Sale Inspection Compliant.

1219 Brookside Dr, San Pablo

Listing courtesy of Robert Sutherland from Epique Realty. 510-393-6466

$1,299,000

4 Beds ⋅ 3 Baths ⋅ 41151830 MLS

Welcome to 925 Avis Dr, a one-of-a-kind private compound where character, comfort, and sweeping Bay views come together. Offering 4 bedrooms, 3 bathrooms, and 2,341 sq ft of versatile living space, this distinctive property blends timeless charm with exceptional indoor-outdoor living, complete with a detached ADU and beautifully terraced grounds. The main residence welcomes you with warm hardwood and terracotta tile floors, a cozy tiled fireplace, and a light-filled custom kitchen featuring a butcher-block island, rich green tile accents, and a sunny breakfast nook with a built-in window bench. Thoughtfully designed for everyday living and entertaining, the home offers flexible spaces, with ground-floor bedrooms opening directly to the lower outdoor areas. Tucked away from the main house, the charming detached ADU offers a character all its own. Dramatic vaulted wood-beam ceilings, a skylight, and a cozy sleeping loft with ladder access create a distinctive retreat. A fully equipped kitchen, stylish vanity bath, and private bedroom with exposed wood ceilings and bay windows make this space ideal for extended family, visiting guests, or a private home office. Step outside to discover a resort-inspired, terraced backyard designed for relaxation and connection. Stone flagstone patios create inviting gathering spaces, while a gazebo-covered hot tub offers the perfect place to unwind. A rustic greenhouse invites your gardening pursuits, and a spiral staircase leads to an elevated view deck where you can take in the surrounding scenery and sweeping Bay views. Additional highlights include solar panels, a radiant heating system, and an attached finished garage. Rarely does a property offer this much character, privacy, and versatility in one setting. With its captivating views, distinctive architectural details, separate living quarters, and enchanting outdoor spaces, 925 Avis Dr is more than a home—it's a private retreat with room to live, gather, and make it your own.

925 Avis Dr, El Cerrito

Listing courtesy of Zhe Wang Birchett from Compass. 415-994-1398

$1,048,000

41151288 MLS

This special property offers a rare opportunity to own two charming homes on one lot in coveted Kensington. A classic 1939 main residence and newly renovated 1940s one-bedroom cottage makes an ideal in-law, office space, or rental income. The main house offers wonderful curb appeal. Inside, large picture windows fill the living space with natural light. The dining room opens to a lovely brick patio that shines when entertaining at night. Enjoy quiet mornings in the delightful eat-in kitchen refreshed with new oak floors, quartz countertops & stainless-steel appliances. Two bedrooms, one with filtered golden gate views, share an updated bath. Below, the tandem garage & laundry area offers potential bonus space. Set beyond a lovely brick hardscape, the newly renovated 1940s cottage is truly special with big picture windows, new vaulted ceilings, updated electrical & lighting, wide-plank flooring, new kitchen, updated bath & new roof. Other improvements: past retrofitting, new drainage & sewer system, new sidewalk & expanded driveway for additional two cars! Stroll to Village shops, within .07 miles to top-rated Kensington Hilltop Elementary, Tilden Park Trails, and AC transit a few steps away.

291 Purdue Ave, Kensington

Listing courtesy of Karen Richmond from Compass. 925-852-1100

$1,048,000

3 Beds ⋅ 2 Baths ⋅ 41151181 MLS

This special property offers a rare chance to own two charming homes on one lot in coveted Kensington, one of East Bay’s most beloved hillside neighborhoods. A classic 1939 main residence and a newly renovated legal 1940s one-bedroom cottage makes an ideal in-law, start-up office, or rental. The main home offers wonderful curb appeal with lawn & welcoming courtyard. Inside, period details accompany large picture windows that fill the living space with natural light. The dining room flows effortlessly out to a lovely brick patio that shines when entertaining at night. Enjoy quiet mornings in the delightful eat-in kitchen refreshed with new oak floors, quartz countertops & stainless-steel appliances. Two upper bedrooms, one with filtered golden gate views, share an updated bath. Below, the tandem garage & laundry area offers potential bonus space. Set beyond a lovely brick hardscape, the newly renovated 1940s cottage is truly special with big picture windows, new vaulted ceilings, updated electrical & LED lighting, wide-plank flooring, new kitchen, updated bath & new roof. Other property improvements: past retrofitting, new drainage & sewer system, new sidewalk & expanded driveway for additional two cars! Stroll to Village coffee & shops, within .07 miles to top-rated Kensington Hilltop Elementary, Tilden Park Trails, and AC Transit a few steps away.

291 Purdue Ave, Kensington

Listing courtesy of Karen Richmond from Compass. 925-852-1100

$489,000

2 Beds ⋅ 1 Baths ⋅ 41150972 MLS

MULTI-GENERATIONAL LIVING/HOUSE-HACKING... TWO COTTAGES, ONE PROPERTY, AND ENDLESS POSSIBILITIES!! Live in one, host family or rent the other. Discover the charm and versatility of this unique property featuring two separate 2-bedroom, 1-bath cottages, offering an incredible opportunity for multigenerational living, rental income potential or a private home office. The inviting 518 sq.ft. main cottage features laminate hardwood flooring, a freestanding stove with oven, microwave, refrigerator, full-size washer and dryer hookups, and an updated bathroom with a shower-over-tub combination. The second 2-bedroom, 1-bath cottage offers additional flexibility and possibilities, whether you're looking to accommodate extended family, create a private workspace or explore rental income opportunities. A charming courtyard nestled between the two cottages provides an inviting space for outdoor dining, morning coffee, or entertaining. The backyard features a spacious lawn area with low-maintenance artificial turf, perfect for relaxing and enjoying the outdoors year-round.

1319 Kelsey, Richmond

Listing courtesy of Sheyna Dumas from R.A.M. Realty. 925-864-0167

$899,000

41150394 MLS

GREAT OPPORTUNITY.. 201-203 ROSSI AVENUE..COMBINATION RESIDENTIAL/COMMERICIAL... 2 UNIT RETAIL BUI8LDING IS CURRENTLY RENTED TO A BARBER SHOP AND A BEAUTY SUPPLY SHOP.. REISIDENTIAL UNIT ON LINDBERGH: 2 BED/1 BATH ADU CAN BRING ADDITIONAL INCOME APPROX. $2000 PER MONTH..WELL ESTABLISHED NEIGHBORHOOD CONVENTIENTLY LOCATED NEAR HIGHWAY 4 FOR GREAT TRANSPORTATION..COME MAKE THIS YOUR NEXT INVESTMENT

201 Rossi Avenue, Antioch

Listing courtesy of Cathie Marples from Marples & Associates. 925-699-8880

$545,000

41150323 MLS

908–914 C Street | Antioch, CA 94509 Unique opportunity to own an investment property in the heart of Antioch. Offering flexible living arrangements and strong income-producing potential, this property is ideal for investors seeking long-term value. Situated on a spacious lot in an established neighborhood, it provides excellent opportunities for rental income, or portfolio expansion. Conveniently situated near historic downtown Antioch, the Delta waterfront, Antioch BART, Highway 4, shopping, restaurants, schools, and local parks, this property offers excellent accessibility while being close to everyday amenities. Whether you're looking to expand your real estate portfolio or purchase a property with long-term potential, this is an opportunity you won't want to miss!

908-914 C St, Antioch

Listing courtesy of Wolf Croskey from Wolfgang Croskey Real Estate. 925-415-6076

$525,850

41149697 MLS

1118 - 1124 G, Antioch

Listing courtesy of David Gardner from David Gardner Investments. 925-395-8700

$545,000

3 Beds ⋅ 3 Baths ⋅ 41149681 MLS

Step into this beautifully updated home offering a bright, open layout perfect for modern living. The kitchen features sleek countertops, stainless steel appliances, and generous storage, flowing effortlessly into the dining and living areas. Spacious bedrooms, refreshed bathrooms, and thoughtful upgrades throughout make this home move-in ready. Outside, enjoy a private backyard ideal for relaxing or entertaining. Conveniently located near parks, shopping, and commuter routes, this home blends comfort, style, and everyday convenience. The small, secluded patio nestled against the weathered beige fence was Sarah’s sanctuary. Tucked between the edge of the apartment building and a grove of towering evergreen trees, it was a quiet pocket of calm in a world that often moved too fast.

301 Delmonte Way Unit END UNIT, Pinole

Listing courtesy of Erichan Lozano from RE/MAX Accord. 415-533-0703

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Contra Costa County Homes with 2 Houses / 1 Lot Lot description

Newest Contra Costa County Homes with 2 Houses / 1 Lot Lot description

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