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Home Remodeling in Contra Costa County

Home remodeling + custom homes

Residential design-build for Blackhawk, Danville, San Ramon, Walnut Creek, Alamo, Lamorinda, and Diablo.

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Barcci Builders whole-home remodel in Los Altos, shown as a Bay Area portfolio example
Craft, in context. Los Altos Residence I · A completed Barcci project outside Contra Costa County. Explore the project ↗
A home with a point of view.

Design and construction, considered together.

Barcci Builders is expanding its residential design-build service coverage in Contra Costa County. We help homeowners plan kitchens, bathrooms, whole-home renovations, additions, ADUs, and custom residences around the way they want to live.

A strong project starts with a clear brief: what to preserve, what to change, and what the investment needs to accomplish. From there, design decisions, site constraints, agency review, materials, and construction scope need to move together. That is the conversation we bring to your project.

Our headquarters remains in Los Gatos. This is a service-area expansion, not an announcement of a new office. California Contractor License #1086047.

Find your community

Explore the design considerations and local review paths for your part of Contra Costa County.

Design-build services in Contra Costa County

Start with the way you want to live. We help turn the brief into a coordinated scope, design, and construction plan.

01

Whole-home remodeling

Rework the home as one connected project: circulation, kitchen and living spaces, primary suites, lighting, storage, and the systems behind the finishes. We start by separating what can stay from what needs to change, then coordinate design and construction around the agreed scope.

Before we talk: Bring existing plans if available, a list of rooms to change, and your plans for living in or moving out of the home during construction.

Contra Costa whole-home remodeling guide ↗
02

Kitchen remodeling

Plan cabinetry, appliance clearances, island proportions, lighting, ventilation, and the connection to adjoining rooms together. Moving a wall or relocating a sink is a different scope from replacing finishes; that distinction belongs in the design and budget from the start.

Before we talk: Share appliance preferences, storage frustrations, entertaining needs, and whether the layout or exterior openings will change.

Contra Costa kitchen remodeling guide ↗
03

Bathroom and primary-suite renovation

Create a more comfortable daily routine with a considered layout, useful storage, layered lighting, and coordinated fixtures. Shower waterproofing, drainage, ventilation, and access for future maintenance are part of the scope—not details to resolve after tile is selected.

Before we talk: Identify the bathrooms to renovate, plumbing relocations, accessibility goals, and whether another bathroom must remain available.

Contra Costa bathroom and primary-suite renovation guide ↗
04

ADUs and home additions

Compare an addition, detached ADU, or conversion against the space your household actually needs. Start with the parcel, existing buildings, utilities, access, and the applicable local review path before choosing a footprint or treating a concept as buildable.

Before we talk: Share the property address, available survey, intended use, and any association documents. Feasibility and approvals are property-specific.

Contra Costa adus and home additions guide ↗
05

Custom-home construction

Develop the brief, site strategy, architecture, engineering, interior selections, and construction plan as coordinated decisions. A new residence starts with land-use feasibility and existing site conditions, not a price-per-square-foot promise detached from the property.

Before we talk: Bring the address or parcel number, survey and reports if available, your target floor area, and the spaces that matter most to you.

Contra Costa custom-home construction guide ↗
06

Exterior and outdoor living

Connect the house to its outdoor spaces through entries, patios, outdoor kitchens, planting, and exterior finishes. Resolve drainage, grading, utilities, tree protection, and any structural work alongside the visual design.

Before we talk: Describe how you want to use the yard, existing drainage concerns, privacy goals, and any proposed walls, structures, or new utilities.

Contra Costa exterior and outdoor living guide ↗

Want to see the possibilities before construction? Explore our 3D design and rendering service.

One county.
Different review paths.

A postal address is not always a permit boundary. Start with the parcel, then confirm which agencies review the work.

01 / Unincorporated

Blackhawk, Alamo & Diablo

These communities use Contra Costa County planning and building services. Where association review applies, it is separate from public permits.

County permit overview ↗
02 / City and town

Danville, San Ramon & Walnut Creek

Each has its own municipal planning and building process. Verify city boundaries before choosing the application route, especially for properties near unincorporated communities.

City and agency directory ↗
03 / Lamorinda

Lafayette, Orinda & Moraga

Local planning and zoning are handled by the city or town, while Contra Costa County provides building plan check and inspections. Confirm the sequence and any other agency involvement for the property.

County and local review roles ↗

Guidance reviewed September 12, 2026. Scope, parcel conditions, fire review, utility work, and private restrictions can change the required steps. Use each community page for its local references; agency guidance is not a guarantee of approval.

See the work. Look closer.

Selected Barcci projects from our Bay Area portfolio. These are real project photographs with their actual locations—not representations of completed Contra Costa work.

View the complete project galleries ↗

Contra Costa remodeling questions

Clear starting points for the decisions ahead. Your address and scope determine the final requirements.

Which Contra Costa communities does Barcci Builders serve?

Barcci Builders serves Blackhawk, Danville, San Ramon, Walnut Creek, Alamo, Lafayette, Orinda, Moraga, and Diablo. Share the project address to confirm scope, site access, and scheduling. Our headquarters remains in Los Gatos.

Does every Contra Costa remodel use the same permit department?

No. Blackhawk, Alamo, and Diablo are unincorporated and use county planning and building services. Danville, San Ramon, and Walnut Creek have their own municipal processes. Lafayette, Orinda, and Moraga handle local planning while Contra Costa County provides building services. Always confirm jurisdiction and required reviews for the actual parcel.

Do HOA approvals replace city or county permits?

No. Where a property is governed by an association, its architectural review is separate from public permits. Identify the applicable association, current documents, agency requirements, and approval sequence before work starts.

What remodeling services does Barcci offer in Contra Costa County?

Barcci Builders offers kitchen and bathroom remodeling, whole-home renovations, ADUs and additions, custom-home construction, and exterior projects, with 3D design and construction coordination. The property review and signed agreement establish the specific services included.

How much will a Contra Costa County remodeling project cost?

A useful budget depends on the existing building, structural changes, systems, materials, site access, design and permit scope. We develop a property-specific proposal rather than quoting a citywide price or treating a portfolio example as a bid. Share the address, desired work, and investment range to start the conversation.

Does Barcci have an office or completed projects in Contra Costa County?

Barcci Builders is headquartered in Los Gatos. This page describes our service coverage, not a local branch office. The portfolio examples shown here are labeled with their actual Bay Area project locations; they should not be treated as evidence of completed work in this community. Ask us for relevant, verified references when discussing your project.

Start with a conversation.

Let’s talk about your Contra Costa home.

Tell us the property’s community and what you want to change so we can discuss the right scope and next steps.

Los Gatos headquarters · California Contractor License #1086047. Verify the current license record ↗