Architectural detail. On‑site craftsmanship. Fully finished, move‑in‑ready spaces built around how you live and work.
From ground‑up residences to ADUs and additions, Terra Buildr delivers high‑end residential construction across the Bay Area with transparent pricing and on‑site precision.
Work directly with our team to plan, engineer and build your modern home — structural framing, exterior envelope, high‑performance glazing, and premium interior finishes. Clear milestones and coordinated trades for a smooth build.
Attached or detached ADUs designed for comfort and code compliance. We handle layouts, elevations, and city submittals and build on‑site for a perfect fit. Kitchen and bath packages available.
Explore ADU Options →Expand your living space with seamless additions that match your home’s architecture — structural tie‑ins, weatherproofing, and premium finishes executed to a luxury standard.
See Home Additions →Purpose‑built studios for office, fitness or guests, constructed on‑site with 2x6 framing, R‑23 insulation, Level‑5 drywall, and black‑finish Low‑E windows. Transparent per‑sq‑ft pricing.
Browse Studio Models →Fully finished interiors, premium windows and doors, and customizable layouts. Prefer a larger build? We also design & build ADUs and home additions.
Need more space than a studio? We design and build Accessory Dwelling Units (ADUs) and high‑end home additions with the same Terra Buildr craftsmanship and on‑site construction.
Premium materials and fully finished interiors. Pricing reflects on‑site construction in the Bay Area.
From $550/sq ft
120 sq ft minimum
From $550/sq ft
120 sq ft minimum
From $550/sq ft
300 sq ft minimum
From $650/sq ft
600 sq ft minimum
With our partner RenoFi, you can bring your project to life now and pay over time. RenoFi home improvement loans consider your home’s after‑renovation value to unlock flexible terms and competitive rates.
Quick eligibility check, no hidden fees, and financing that fits your project timeline.
Learn About RenoFi— Sarah L., Hillsborough
We combine architectural detail with on‑site craftsmanship to deliver spaces that elevate your day.
2x6 framing, R‑23 insulation, Level 5 drywall, premium flooring, and black‑finish Low‑E windows.
Electrical with recessed lighting, siding and paint, finished interiors — move‑in ready.
From $550/sq ft with model‑specific minimum sizes.
Focused on Bay Area cities like Atherton, Hillsborough, Piedmont, and more.
Yes. We help you navigate requirements and coordinate with your city.
Studios typically take 4–8 weeks after design sign‑off. ADU and addition timelines vary by scope and permitting.
Insulation, drywall, electrical with recessed lights, windows/doors, exterior siding, and interior finishes. HVAC optional. ADUs/additions can include kitchen and bath packages.
Yes — choose size, window/door placement, and finishes to match your lifestyle.
Yes — use the RenoFi link above to check eligibility and options.
Across the Bay Area — Atherton, Hillsborough, Los Altos Hills, Orinda, Lafayette, Tiburon, Menlo Park, Danville, Mill Valley, Berkeley, Walnut Creek, and more.