Architectural detail. On‑site craftsmanship. Fully finished, move‑in‑ready spaces built around how you live and work.
Signature builds crafted with architectural precision. From new homes to luxury ADUs, additions, and backyard studios — each project is engineered for longevity and finished with uncompromising detail.
Ground‑up modern residences designed and built to exceed Bay Area standards.
Our new home construction services manage every detail, from architectural layouts to energy compliance. Each project reflects Terra Buildr’s hallmark craftsmanship, with structural and aesthetic integrity built in from day one.
Detached or attached ADUs built on‑site with premium interiors and lasting value.
As a leading ADU builder in the Bay Area, we align design, permits, and on‑site construction to create spaces that feel seamless to your property. Fully compliant, efficient, and beautifully finished.
Expand your living space with architectural continuity and high‑end finishes.
Our home additions are designed to blend flawlessly into the existing structure. From engineering approvals to final paint, we ensure the new square footage enhances both form and function.
Purpose‑built studios for office, gym, or guest space — fully finished and move‑in ready.
Our backyard studios combine form and function. On‑site construction ensures a perfect fit, with black‑finish Low‑E windows, energy‑efficient systems, and interiors ready for work, wellness, or hosting.
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.