Architectural Integrity
Proportions, rooflines, and glazing are tuned so your new home, ADU or addition feels original to the property — not an afterthought.
Architect-led construction for high-end homeowners across Atherton, Hillsborough, Orinda, Lafayette, Berkeley, Tiburon, Mill Valley and the greater Bay Area.
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.
A luxury-focused construction partner for new homes, ADUs and additions — grounded in architecture, discipline, and long-term value.
Proportions, rooflines, and glazing are tuned so your new home, ADU or addition feels original to the property — not an afterthought.
High-performance framing, insulation and glazing designed for comfort, acoustic control and long-term durability in Bay Area climates.
Compact, organized crews, clean staging, and milestone-based schedules keep work predictable and respectful of your household.
Experience working in Atherton, Hillsborough, Los Altos Hills, Orinda, Lafayette, Berkeley, Tiburon, Mill Valley, Danville and surrounding communities.
Our core focus across the Bay Area — luxury new homes, architecturally aligned ADUs and seamless home additions with transparent schedules and refined finishes.

Full-scale structural, architectural and interior execution for luxury custom homes.
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Architect-led ADUs with premium finishes that feel fully integrated with your home.
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Thoughtful expansions that match your architecture while elevating light, flow and daily living.
View Home Additions →Premium, on-site studios that complement Bay Area homes — ideal for offices, wellness, guests and creative work.
Luxury studio with ADU-ready planning and fully insulated, finished interiors.
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Modern lean-to profile with crisp lines and signature transom glazing.
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L-shaped planning with dual zones for work, guests or wellness.
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Expansive studio with generous glazing and pro-grade interiors.
View Nova →Recent new homes, ADUs and additions delivered for homeowners across top Bay Area neighborhoods.
Ground-up luxury new home with high-performance envelope, custom millwork and landscape integration.
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Architecturally aligned ADU with cedar cladding, black glazing and a quiet interior for guests and extended family.
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Seamless rear addition with integrated studio, expanding light, storage and daily living space.
View Home Additions →Build Process
Disciplined, high-end execution: clear milestones, tidy staging, and a luxury finish that feels original to the home.
We confirm setbacks, access and utilities, then prepare planning and building submittals. When engineering is required, we coordinate with your selected engineer.
Rooflines, cladding alignments and glazing rhythms are tuned to your residence so new work reads as original architecture.
Compact crews with tidy staging, milestone tracking and clear communication at each phase — from foundation to finish.
Punch-list completion, documentation, and a clean hand-off so your new space feels move-in ready from day one.
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).
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.”
“They coordinated seamlessly with our engineer. The addition blends perfectly — neighbors thought the house was built that way.”
“Terra Buildr delivered exactly what we envisioned — a quiet, elegant home with impeccable detailing. Communication was exceptional.”
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.
A few common questions from Bay Area homeowners planning new homes, ADUs and additions.
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.
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.
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.
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.
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.
Tell us about your site, goals and timeline. We’ll recommend the right approach and provide a detailed estimate.