Bay Area luxury new home, ADU and addition by Terra Buildr

The Bay Area's Premier Luxury Home Builder — New Homes, ADUs & Additions

Architect-led construction for high-end homeowners across Atherton, Hillsborough, Orinda, Lafayette, Berkeley, Tiburon, Mill Valley and the greater Bay Area.

Luxury New Home Construction ADUs & Home Additions Architect-Led Design-Build Premium Materials & Detailing

Terra Buildr is a Bay Area construction company specializing in New Home Construction, ADUs, and Home Additions for discerning homeowners. We coordinate with architects, manage permitting, and deliver disciplined on-site execution with refined finishes.

Why High-End Bay Area Homeowners Choose Terra Buildr

A luxury-focused construction partner for new homes, ADUs and additions — grounded in architecture, discipline, and long-term value.

Architectural Integrity

Proportions, rooflines, and glazing are tuned so your new home, ADU or addition feels original to the property — not an afterthought.

Premium Building Envelope

High-performance framing, insulation and glazing designed for comfort, acoustic control and long-term durability in Bay Area climates.

Disciplined Site Execution

Compact, organized crews, clean staging, and milestone-based schedules keep work predictable and respectful of your household.

Focused on Top ZIP Codes

Experience working in Atherton, Hillsborough, Los Altos Hills, Orinda, Lafayette, Berkeley, Tiburon, Mill Valley, Danville and surrounding communities.

Featured Bay Area Projects

Recent new homes, ADUs and additions delivered for homeowners across top Bay Area neighborhoods.

Modern luxury new home in the Bay Area

Atherton Modern Residence

Ground-up luxury new home with high-performance envelope, custom millwork and landscape integration.

New Home Construction • Atherton, CA
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Luxury ADU in a landscaped Bay Area backyard

Orinda Hills ADU

Architecturally aligned ADU with cedar cladding, black glazing and a quiet interior for guests and extended family.

ADU Builder • Orinda, CA
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Seamless home addition at a Bay Area property

Berkeley Addition & Studio

Seamless rear addition with integrated studio, expanding light, storage and daily living space.

Home Addition • Berkeley, CA
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Build Process

How We Build in the Bay Area

Disciplined, high-end execution: clear milestones, tidy staging, and a luxury finish that feels original to the home.

Step 1 • Permits & Compliance

Planning, Zoning & Submittals

We confirm setbacks, access and utilities, then prepare planning and building submittals. When engineering is required, we coordinate with your selected engineer.

Step 2 • Architecture

Proportions, Materials & Glazing

Rooflines, cladding alignments and glazing rhythms are tuned to your residence so new work reads as original architecture.

Step 3 • Build & Schedule

Clean, Predictable On-Site Execution

Compact crews with tidy staging, milestone tracking and clear communication at each phase — from foundation to finish.

Step 4 • Closeout

Final Walkthrough & Care

Punch-list completion, documentation, and a clean hand-off so your new space feels move-in ready from day one.

Top Service Areas

Serving leading Bay Area communities including Atherton (94027), Hillsborough (94010), Los Altos Hills (94022, 94024), Orinda (94563), Lafayette (94549), Berkeley (94707, 94708), Tiburon (94920), Mill Valley (94941) and Danville (94506).

What Clients Say

Discipline, communication and refined results — across custom homes, ADUs and additions.

“Permits were smooth and the on-site team kept everything tidy. Our ADU looks like it was always part of the property.”
— J. Chen
“They coordinated seamlessly with our engineer. The addition blends perfectly — neighbors thought the house was built that way.”
— L. Rivera
“Terra Buildr delivered exactly what we envisioned — a quiet, elegant home with impeccable detailing. Communication was exceptional.”
— A. Martinez

About Terra Buildr

Terra Buildr is a Bay Area construction company focused on luxury new home construction, ADUs and home additions for high-end homeowners. We combine architectural alignment, disciplined execution and premium materials to create spaces that feel timeless and intentional.

From initial feasibility and permitting through framing, finishes and hand-over, our team manages the details so your project stays clear, organized and on track. The result is a home that looks and feels like it was always meant to be there.

Frequently Asked Questions

A few common questions from Bay Area homeowners planning new homes, ADUs and additions.

How long does new home construction take in the Bay Area?

Most new home construction projects range from 9–18 months depending on design complexity, permitting timelines and site conditions. We outline a clear schedule before construction begins and update you at each milestone.

Do you handle design and permitting?

Yes. We coordinate with architects, prepare planning and building submittals, and manage permits on your behalf. When a structural engineer is required, you select the engineer and we coordinate closely throughout the process.

Do you build ADUs in the Bay Area?

Yes. Terra Buildr designs and builds ADUs across the Bay Area, focusing on architecture, privacy, access and long-term durability. Each ADU is tailored to your site, zoning and desired use — whether for guests, family or rental income.

What areas do you serve?

We serve high-end neighborhoods and cities throughout the San Francisco Bay Area, including Atherton, Hillsborough, Los Altos Hills, Orinda, Lafayette, Berkeley, Tiburon, Mill Valley, Danville and nearby communities.

What types of projects do you focus on?

Our core focus is luxury new home construction, ADUs and home additions, along with premium pods and backyard studios for offices, wellness, creative work and guest use.

Start Your Project

Tell us about your site, goals and timeline. We’ll recommend the right approach and provide a detailed estimate.