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IMC Builders strives to deliver a BETTER building experience through service, transparency, leadership and continuous innovation.
Contact us today at 530.301.0059 for a consultation and let us show you how our home improvement services can bring your vision to life.
Sacramento Builder, Specializing in Custom Homes, Renovations, and Additions
Home Addition Loft Living Space

More Space, Seamlessly Integrated

Additions and ADUs offer the opportunity to grow your home in a way that feels intentional, cohesive, and true to its original character. From new suites to fully detached living units, these projects demand careful coordination to ensure every detail aligns with the existing structure. IMC Builders partners with your architect and designer from the earliest stages, shaping your ideas into a well‑defined plan that expands your home with purpose and precision.

Architect & designer coordination

No markups. Fixed fee only.

24/7 access via client portal

Hundreds of projects. Proven results.

Expand your home with seamless planning, expert craftsmanship, and lasting results.

Room additions & suite expansions

Primary suite additions with luxury baths

Great room & kitchen expansions

Second-story additions

Garage conversions to living space

Attached ADUs & in-law suites

Detached backyard cottages

Junior ADUs (JADUs)

Rental-ready ADUs & accessory units

We collaborate closely with architects, engineers, and trade partners to keep every project on track — from initial feasibility through final inspection. Whether you’re adding square footage, creating a multigenerational living space, or building a rental-ready ADU, we coordinate design, permitting, and construction so the finished space integrates seamlessly with your existing home. Our focus is precision, clear communication, and results that hold up long after the project is complete.

Additions & ADUs FAQ

What’s the difference between an addition and an ADU?

An addition expands the existing home — adding bedrooms, bathrooms, great rooms, or other living spaces that tie directly into the current structure. An ADU is a separate, self‑contained living unit that can be attached, detached, or created by converting an existing space like a garage or bonus room. Both require thoughtful planning to ensure they integrate seamlessly with the property.

Is an ADU a good investment for my property?

ADUs often add significant value by creating flexible living space for family, guests, or rental income. During Pre‑Construction, we review zoning, setbacks, utility requirements, and potential return on investment so you can make an informed decision about whether an ADU is the right fit for your property.

Will the new space blend with my existing home?

That’s the goal. Additions and ADUs are designed to feel like they’ve always been part of the property. We pay close attention to rooflines, transitions, finishes, and structural alignment so the new space looks cohesive and intentional, not tacked on.

How long does an addition or ADU project take?

Timelines depend on the size of the project, the amount of existing home we’re improving, and the complexity of the design. Pre‑Construction for both additions and ADUs typically takes 3–6 months as we finalize design, engineering, selections, and permitting. Smaller additions can often be built in around 3 months, though this varies based on how much of the existing structure is being modified. ADUs generally take 4–6 months to build, with more complex or detached units extending that timeline. Careful planning upfront ensures a smoother, more predictable construction phase.

Let’s Talk About Your Project

Additions and ADUs require a careful balance between old and new — and the planning behind them matters as much as the construction itself. We manage the entire process from design and permitting through build, making sure structural transitions, rooflines, finishes, and systems come together so the finished space feels like it was always part of your home. If you’re ready to explore what’s possible, we’d love to hear about your project.

With over 400 projects completed across Northern and Central California, IMC Builders brings deep experience in both new construction and renovation work. As NARI Remodeler of the Year 2025 and a Lincoln Best of the Best Award recipient, we’re recognized for quality, craftsmanship, and lasting client relationships.