Trusted Design + Build Experts in Napa & Sonoma Valleys
JS Design + Build is a full-service residential design-build firm serving Napa Valley, Sonoma Valley, and nearby Wine Country communities. Our in-house designers, builders, and project managers guide whole-home remodels, substantial additions, structural multi-room renovations, and select ADUs from early feasibility and budgeting through design, permitting, construction, furnishings, and the project handoff.
Because design and construction stay connected, buildability, material selections, and real project costs can be considered earlier. You have one accountable team and a well-managed experience—whether you're improving a primary residence or a second home.
Why Choose Our Napa & Sonoma Design-Build Firm?
Accountability
One connected team is responsible for your project from the first design conversation through construction and closeout. Because our designers, builders, and project managers work together, questions are resolved directly, and responsibility stays clear.
Expertise
JS Design + Build brings more than 45 years of design experience and over 20 years of construction experience to complex residential projects. That experience helps us identify potential challenges early, when they're easier to solve and before they affect your project.
Integrity
Our family-run firm has built its reputation over generations. We take your trust seriously, communicate candidly about the project plan and budget, and do the right thing even when no one is looking.
Our Residential Design + Build Process
Is Design-Build the Right Fit?
Aligning your project goals with your investment.
We begin with a phone conversation to learn about your project and determine whether a residential design-build firm is the right fit for your needs.
Next, we meet at your home to walk the space, discuss your goals, and better understand what the project will involve and the investment you have in mind.
From there, we meet at our office to review a rough budget range based on similar recent projects. If everything feels aligned, we present our hourly Design and Budget Contract for e-signature.
Phase 1
Let's Get Designing!
Design development and budget feasibility.
Our design team comes to your home to document existing conditions and take detailed measurements. From there, we develop the drawings and work with you until the floor plan feels right.
Once the floor plan is established, we compare the evolving design with the initial rough budget. This gives us an early opportunity to address any changes needed to keep the project and investment aligned.
Phase 2
Dial In the Details!
Finalizing the design, selections, and budget.
We develop detailed elevations for cabinetry, tile, and other key design elements, then guide you through selecting the finish materials that will shape the look and feel of your home.
With most selections and specifications complete, our team and trusted trade partners walk the project together. We use that information to prepare a more complete construction budget and review any final adjustments before moving into the fixed-fee Home Improvement Contract.
Phase 3
Construction Begins!
Professionally produce the project as designed and per contract.
Relax, we got this! Because the design, selections, and budgeting have already been carefully worked through, the transition into construction is clear and organized.
Your assigned project manager coordinates the work, while our project management software keeps you informed with updates, photos, documents, and progress throughout construction.
For clients who want our design team involved through the final details, we also offer furnishings services. These conversations often begin during Phase 2, when we’re establishing the home’s finishes, materials, and overall design direction.
As construction nears completion, we can carry that vision into furniture, lighting, art, and accessories, helping your finished home feel cohesive, complete, and ready to live in.
Phase 4
Residential Design + Build FAQs for Napa & Sonoma
What are the benefits of design-build for a home remodel?
With one team responsible for the project, homeowners benefit from clearer communication, better coordination, fewer handoffs, and budgeting that stays connected to the design from the beginning. Our design-build approach combines expert design and skilled construction under one roof.
What is a residential design-build firm?
A residential design-build firm manages both the design and construction of the project, but that does not necessarily mean both functions are in-house. In many design-build firms, the general contractor manages the project and outsources design to a draftsperson or designer.
At JS Design + Build, our in-house team handles design, permitting, selections, budgeting, and construction for a more cohesive and streamlined experience.
How does your design-build process work?
Our design-build process begins with a phone conversation and on-site meeting to understand your project, goals, and investment. From there, we develop the design, check the budget as plans progress, complete selections and final pricing, and then move into a fixed-fee Home Improvement Contract for construction.
JS Design + Build can continue the design vision into furnishings and window treatments so the completed home feels cohesive.
Does your design-build service include permits?
Absolutely. We manage all permitting and code compliance for Napa, Sonoma, and other counties as well as the respective city jurisdictions.
How is design-build different from hiring an architect and general contractor separately?
The traditional approach of hiring an architect or designer first and then separately hiring a general contractor is known as design-bid-build. In this model, design and construction are handled by separate teams under separate agreements.
With JS Design + Build, design and construction work together from the beginning, so your plans are developed with your vision, budget, selections, and build feasibility in mind.
Our in-house team provides full-service design, including high-quality construction plans that meet permit requirements and material selections that would often be handled separately by an interior designer. Because construction costs are considered during design, we can also compare the evolving plans against the budget at key checkpoints instead of waiting until the design is complete to discover whether the project is financially aligned.
There is no need to pass the project between separate architect, designer, and contractor teams or manage the lead times and back-and-forth that come with those handoffs. That integrated approach creates clearer communication, fewer delays, and a more coordinated path from design through construction.
Think of it this way: a general contractor needs a design to provide an accurate quote. Coming to us first means the design is developed around both your vision and your budget, helping save time, reduce surprises, and simplify the process.
Why choose our design-build approach over hiring an architect for remodels?
It makes sense to hire our Napa design and build team over an architect when you’re looking for:
- Full-Service Design — We create high-quality construction plans that meet permit requirements and include material selections (a step usually handled by an interior designer).
- Budget Accuracy — Designs are created with real construction costs in mind, so your estimate reflects the actual build. There are also budget checkpoints within the design phase.
- Streamlined Process — No passing your project between separate architect, designer, and contractor teams, nor the lead times usually associated with that back and forth.
- Best for Larger Projects — We’re ideal for whole-home renovations, ADUs, and multi-space remodels, but not single-room projects.
Think of it this way — all General Contractors need a design to provide an accurate quote. Coming to us first means your design is tailored to your vision and your budget, saving time, money, and stress.
What are the advantages of working with a design-build firm instead of a general contractor only?
The biggest advantage is that design and construction decisions can inform one another from the beginning. Rather than developing a design first and determining its true construction cost later, a thoughtful design-build process brings construction input and estimating into the design phase.
That allows the team to evaluate your plans with three things in mind at the same time: your vision, your budget, and what is practical to build. Budget checkpoints along the way can also help identify potential cost concerns before the design progresses too far.
There are fewer handoffs between separate designers, estimators, and builders, which can make communication clearer and help decisions move forward with better context. The result is a design that is not only thoughtfully developed, but also informed by the realities of construction from the start.
How do I choose a residential design-build firm in Napa or Sonoma?
Look for a firm with experience completing projects similar to yours, qualified in-house design expertise—not simply drafting capability—along with construction expertise, clear budget checkpoints, local permitting knowledge, and a defined project management process. Just as important, choose a team you trust to communicate candidly and guide you through a significant investment in your home. Learn more about how to choose a design-build firm here.
Is design-build more expensive, and how much does a remodel cost?
A design-build approach can provide greater cost clarity earlier in the process because design decisions are developed alongside construction input and budget checkpoints. This helps identify potential cost concerns before construction begins and allows the design to evolve with the project budget in mind.
JS Design + Build typically focuses on whole-home remodels ranging from approximately $600,000 to $3 million and substantial multi-room remodels ranging from approximately $300,000 to $700,000. Final cost depends on the size and complexity of the project, structural changes, existing conditions, and finish selections.
For a more detailed look at remodeling costs in Napa Valley, explore our Remodeling Cost Guide.