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ADUs & garage conversions · Completed project
Detached Studio ADU with a Vaulted Ceiling and Skylight
A compact backyard ADU that feels bigger than its footprint: a vaulted ceiling with an exposed beam, a skylight, a full kitchenette and a walk-in shower.
- Project
- Detached ADU
- Layout
- Studio with kitchenette and bath
- Highlights
- Vaulted ceiling, skylight
- Service area
- San Jose Bay Area
Project overview
About this project
This detached accessory dwelling unit was built as a self-contained studio: living, sleeping and dining in one bright room, a full kitchenette along one wall, and a private bathroom.
The vaulted ceiling with a dark exposed beam and a skylight make the single room feel open, while a ductless mini-split keeps it comfortable year-round. Light wood-look plank flooring runs through the whole unit.
Outside, the ADU has its own entry door under a black metal awning, coach-style wall lights and a paver patio, so the tenant or family member has a private way in.
Vaulted ceiling
Exposed beam and a skylight bring daylight deep into the room.
Full kitchenette
White shaker cabinets, black backsplash tile, range, microwave and refrigerator.
Walk-in shower
Frameless glass enclosure with a rain shower head and a mosaic shower floor.
Private entry
Own front door, awning and paver patio.
Project photos
Photo tour: 9 photos
Photos of the finished work. Tap any photo to view it full screen, then swipe or use the arrow keys.
Scope of work
What we built
Everything Quartz Construction & Remodeling handled on this project, grouped by part of the job.
Structure
- New detached ADU
- Vaulted ceiling with exposed beam
- Skylight
- Stucco exterior
Kitchen
- White shaker cabinets
- Black tile backsplash
- Stainless and white appliances
- Under-window sink
Bathroom
- Walk-in shower with frameless glass
- Rain shower head
- Vanity with storage
- Window for ventilation
Systems & finishes
- Ductless mini-split heating and cooling
- Recessed lighting
- Wood-look plank flooring
- Paver patio at the entry
How we work
How a project like this comes together
The same five steps run every Quartz job, from the first visit to the final walkthrough. One team designs, permits and builds it.
Site visit and feasibility
We look at the lot or garage, utilities, access and setbacks, and talk through how you plan to use the unit.
Design and plans
Floor plan, kitchen and bath layout, and finishes are drawn up and prepared for the city.
Permits
We prepare and submit the permit package and coordinate plan check with the city or county.
Construction
Foundation or slab work, framing, utilities, insulation, drywall, then kitchen, bath and finishes.
Final inspection and walkthrough
The unit passes final inspection and we walk it with you before handing over the keys.
Questions & answers
ADUs & garage conversions: common questions
Planning something similar? These are the questions homeowners ask us most. Anything else, just call.
(650) 749-7436Do you handle ADU permits?
Yes. As your general contractor we prepare the permit package, submit it to the city or county and coordinate inspections through final sign-off.
Can a detached garage be converted into an ADU?
Often, yes. It depends on the structure, the slab, setbacks and utilities. We check those on a site visit before any design work.
What does an ADU need inside?
A legal ADU needs its own kitchen, a full bathroom, a sleeping area and a separate entrance. Heating and cooling, laundry and storage are planned into the layout.
Can I rent out an ADU?
In California, ADUs are commonly used as rentals or for family. Local rules on rental terms vary by city, so check your city's ADU rules for your lot.
Do you work in my city?
Our office is in San Jose and we build across Santa Clara, San Mateo, Alameda and Contra Costa counties. Call us to confirm your address.
Client reviews
What our clients say on Google
We had an amazing experience with Quartz Construction for our garage conversion ADU. The entire process was smooth and stress-free—they made everything incredibly easy for us from start to finish. Our project manager, Ohad, was fantastic to work with. He was always available, professional, and made sure everything ran smoothly. On top of that, they also completed a full backyard renovation, and the results exceeded our expectations. The quality of work and attention to detail were outstanding. Highly recommend them to anyone looking for a reliable and professional construction company!
We hired Ohad and his crew for a home addition, and they did a fantastic job. The new area feels like it’s always been part of the house. Great craftsmanship and smooth process.
Working with Ohad on our full home remodel was an incredible experience. He helped us through every decision and made sure everything turned out exactly how we envisioned. The team was easy to communicate with and super detail-focused. We still can’t believe how beautiful our home looks!
More projects
Explore more of our work
More completed Quartz projects across the San Jose Bay Area.
From our blog
Helpful reading before you start
Guides on permits, materials and planning, written by the team that builds these projects.
Room Addition vs. Second-Story Addition: Which Fits Your Lot?
Ground-level room addition or second story? Compare foundation work, structural engineering and San Jose zoning rules before you design your Bay Area addition.
ADU vs. Garage Conversion: Which Fits Your Lot?
Setbacks, parking replacement and permit timelines compared for garage-conversion and detached ADUs in San Jose, sourced from the city and state law.
Free estimate
Begin your home remodeling journey
Your house deserves more than basic repairs. Tell us about your project and we’ll call you to set up a free on-site estimate.
- Call or text(650) 749-7436
- HoursMon–Fri, 8 AM–5 PM
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