Ramirez & Yang Co.

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Ramirez & Yang Co. Design-build for custom homes, care homes, barndominiums, ADUs and restorations across Southern California. Ramirez & Yang Co.

Drawings and field execution under one license — the plan up front is what decides how the project ends. is a design-build firm led by an engineer who is also a licensed builder running his own crew. We design and build custom homes, six-bed residential care homes (RCFE), barndominiums and ADUs, and we restore homes after water, flood, fire and mold damage, insurance claim included. Drawings and construction stay under one license, so the plan you approve is the plan that gets built. We are thorough up front, the price holds unless the design changes, you pay for work that exists, and one person is accountable from the first drawing to the final inspection.

Thinking about an ADU? It pays you twice.Rent it for ~$1,200–$4,000/mo — and homes with a permitted ADU resell for about...
06/29/2026

Thinking about an ADU? It pays you twice.

Rent it for ~$1,200–$4,000/mo — and homes with a permitted ADU resell for about 35% more. Income now, equity later.

We design and build ADUs across Southern California, from feasibility to finish. Message us to see what your lot could do.

Sources: Porch (resale), regional ADU rent data

06/25/2026

ADUs now make up 1 in 5 new residential construction permits in California.

Backyard cottage, garage conversion, or attached suite: homeowners across California are adding ADUs to house family, earn rental income, and add lasting value to their property.

If you've been thinking about it, you're not early — you're right on time.

We design and build ADUs across Southern California, from feasibility to finish. Message us to see what fits your lot.

Source: CA YIMBY · California HCD permit data, 2023

Digging Deep: Excavation🔍 Digging Deep! Our excavation phase is in full swing, showcasing our expertise and top-notch eq...
05/11/2026

Digging Deep: Excavation

🔍 Digging Deep! Our excavation phase is in full swing, showcasing our expertise and top-notch equipment. Every scoop brings us closer to a new living space. Watch this space for more updates! 🏗️

Clearing the Way🌿 Clearing the Way! Our dedicated team is hard at work, removing debris to prep the site perfectly. Ever...
05/09/2026

Clearing the Way

🌿 Clearing the Way! Our dedicated team is hard at work, removing debris to prep the site perfectly. Every piece of the puzzle fits together with teamwork and organization. 🛠️ Can't wait to show you what's next!

Breaking Ground: The Start🚜 Breaking Ground! Watch as we transform this space with precision and teamwork. The land clea...
05/07/2026

Breaking Ground: The Start

🚜 Breaking Ground! Watch as we transform this space with precision and teamwork. The land clearing marks the beginning of our exciting ADU project in Los Angeles. 👷‍♂️💪 Stay tuned for more updates on our journey!

Address

1370 Valley Vista Drive, Suite 200
Diamond Bar, CA
91789

Telephone

+19095514566

Website

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