Serving the Bay Area
Custom Home Builder in Concord, California
Bayside Home Builders designs and builds new homes in Concord and the surrounding East Bay, handling every phase from permits to final walkthrough so you deal with one team start to finish.
home builder project · ConcordConcord's Older Housing Stock Has a Ceiling, and You May Have Already Hit It
Buying and renovating an older Concord ranch home sounds like the practical path. For many homeowners it is. But there is a point where the bones of a 1960s or 1970s house, original slab, galvanized plumbing, undersized electrical panel, no insulation to speak of, stop you from getting the home you actually want no matter how much you spend on finishes.
What you are living with
You live with low ceilings you cannot raise because of the roof structure above them. You live with a floor plan built around a different era of family life, small bedrooms off a narrow hall, a kitchen that does not connect to the yard. You live with energy bills that stay high because the walls were never insulated properly and retrofitting them is disruptive and expensive. Every remodel generation leaves the next owner another layer of workarounds.
What you get instead
Some Concord lots are worth more as a clean slate. If the house on your lot is at the end of its useful life as a renovation candidate, building new on that same parcel can give you current framing, insulation, mechanical systems, and a floor plan that actually fits how you live. The upfront cost is real and we will give you honest numbers, but you are not paying to work around someone else's 1968 decisions for the next thirty years.
Our Recent Work
Custom Home Building, Done Right
We build new homes from the ground up, handling design, permitting, and construction under one roof. No handoffs between separate architects and builders, no finger-pointing when problems come up. One team, one contract, one point of contact from lot assessment to the day you get your keys.
Site Evaluation and Feasibility
Before you spend a dollar on plans, we walk the lot with you, review zoning setbacks, soil conditions, utility connections, and access. You get a straight answer on what can be built and what it will realistically take to get there.
Architectural Design and Drafting
Our in-house design team produces full construction drawings tailored to your lot, your program, and local building department requirements. We design for constructability, meaning the plans we draw are the plans we actually build from.
Permit Acquisition
We prepare and submit permit applications, respond to plan-check comments, and track approvals through the building department. This process takes time and we tell you honestly how long upfront, not after you have signed a contract.
Foundation and Structural Framing
We handle excavation, concrete foundation work, and wood or steel framing using licensed subcontractors we have worked with repeatedly. Every structural stage is inspected before we cover it up.
MEP Rough and Finish Installation
Mechanical, electrical, and plumbing are coordinated from the design stage so systems are sized correctly and run efficiently. Finish work, fixtures, panels, and HVAC equipment are selected with longevity and serviceability in mind.
Finish Work, Punch, and Final Inspection
Cabinetry, flooring, tile, paint, trim, and exterior finishes are all managed by our team. We do a formal punch-list walkthrough with you before we request final inspection, so sign-off reflects a home that is actually complete.
Why Homeowners Choose Bayside Home Builders
There are a lot of contractors who will take your deposit. Here is what specifically separates how we operate.
Licensed, Bonded, and Insured Through CA CSLB
We carry an active California Contractors State License Board license, general liability insurance, and workers compensation coverage. You can verify our license number before you sign anything. This is the minimum standard, and plenty of companies advertising new home construction do not meet it.
Design and Construction Under One Contract
When your architect and builder are separate companies, scope gaps and cost disputes fall on you. Because we do both, the person drawing the plans is accountable for building them on budget. Errors caught in design cost nothing to fix. Errors caught in framing cost real money.
Family-Owned, With a Track Record You Can Check
Bayside Home Builders is a family-owned company, not a franchise or a private-equity-backed operation cycling through project managers. The principals are involved in active projects. We will give you references from completed new builds and you can call them without a sales rep on the line.
We Tell You the Hard Numbers Early
Site costs, permit fees, utility connection charges, and lead times on materials are factors that inflate budgets on projects where contractors leave them out of early conversations. We put those numbers in front of you during feasibility, before you are committed, because surprises at framing stage are avoidable.
What our clients say
We recently had our kitchen remodeled by Bayside Home Improvement, and overall, we’re really happy with how everything turned out. The kitchen looks completely refreshed, and the space is much more pleasing to walk into. The team was professional…
I had the pleasure of working with Samuel on my kitchen and home remodel and I am thrilled about how it came out. His team was great in getting the designs together and listening to our ideas and interests. We went with an open layout design which…
How a New Home Build Actually Works With Us
Four stages, no mystery. Here is what happens from your first call to your final walkthrough.
Step 1: Consultation and Site Review
We meet at the lot or at your current home and talk through what you want to build, what the site allows, and what the realistic timeline looks like given current permitting conditions. You leave with a clear picture of next steps, not a sales pitch.
Step 2: Design, Budgeting, and Permit Submission
Our team develops floor plans and elevations based on your program and lot constraints. We price the project from those drawings so the budget is tied to actual scope, then we submit for permits and manage the plan-check process through approval.
Step 3: Construction
Once permits are in hand, we break ground. Foundation, framing, rough MEP, insulation, drywall, and finishes proceed in sequence with required inspections at each stage. We give you a construction schedule at the start and communicate updates when conditions change.
Step 4: Punch List, Final Inspection, and Handover
We walk the completed home with you and document every item that needs attention before we request final inspection from the building department. After sign-off, we hand over your warranty documentation, as-built drawings, and equipment manuals. The project is done when you are satisfied, not when it is convenient for us to close the file.
Building a New Home in Concord, California
Concord sits in Contra Costa County, where most of the housing stock dates from the 1950s through the 1980s. Lots are available, but they come with their own set of site conditions, utility connections, and permit requirements that differ from what you face in San Jose or the South Bay. We serve Concord homeowners and landowners who want a new custom home built to current California energy and seismic standards.
Permits & review
New home construction in Concord goes through the City of Concord Building Division. You will need a building permit, grading permit if the lot has any slope, and clearance from Contra Costa County Environmental Health if you are near any former industrial or agricultural land. California Title 24 energy compliance and current CBC seismic requirements apply to every new build. Plan check timelines in Contra Costa County typically run longer than in smaller jurisdictions, so budget extra time at the front end.
Housing stock
Most existing Concord neighborhoods are made up of single-story ranch homes and modest two-story tract houses built before 1990. Vacant lots are limited but do exist, often as infill parcels or teardown opportunities. Building new on an infill lot means dealing with established utility easements, mature trees, and neighbors on close setbacks. A design-build approach lets you plan for those constraints before permits are pulled, not after.
Areas we serve
We serve Concord and the surrounding Contra Costa County communities. If you have a lot or a teardown candidate in the area, contact us to discuss site feasibility before committing to a floor plan or a budget number.
Common questions
Is $200,000 enough to build a house in Concord, California?
No, not in the current Bay Area market. Construction costs in Contra Costa County typically run $350 to $550 per square foot for a standard custom build, and that is before land, permits, utility hookups, or site work. A modest 1,500 square foot home in Concord will realistically cost $600,000 to $900,000 all in, depending on finishes and site conditions. $200,000 may cover a small addition or an ADU, but not a standalone house.
Is $400,000 enough to build a house in Concord?
$400,000 is closer to realistic, but it still depends on what you already own. If you have a lot free and clear and are planning a modest home under 1,000 square feet with standard finishes, you may land in that range. Most single-family custom homes in Concord run higher once you add permit fees, school impact fees, utility connections, and landscaping. Budget $450,000 to $700,000 for a practical 1,200 to 1,500 square foot custom home on an existing lot.
What size home can you build for $250,000 in Concord?
At Bay Area construction rates, $250,000 gets you roughly 400 to 600 square feet of finished living space, which is ADU territory, not a full single-family home. That budget can work well for a detached accessory dwelling unit on your current property, which is often a smart move in Concord given the rental demand and the potential to offset your mortgage.
How long does it take to build a custom home in Concord?
Plan for 14 to 24 months from signed contract to move-in. Concord and Contra Costa County permitting typically adds 3 to 6 months before a shovel goes in the ground. Construction on a standard single-family home then runs 10 to 16 months depending on size and complexity. Custom features, material lead times, and weather can all add time, so we build a realistic schedule into every project from day one.
Do I need a separate architect, or does Bayside handle design and construction?
Bayside operates as a design-build firm, meaning we handle plans, engineering coordination, permitting, and construction under one contract. You are not managing handoffs between a separate architect and a general contractor, which is where most cost overruns and scheduling problems come from. We work with licensed architects and structural engineers as part of our team, so the design is built to be built, not just drawn to look good on paper.
What permits are required to build a new home in Concord?
New home construction in Concord requires building permits through the City of Concord Building Division, plus approvals that may include grading permits, a fire sprinkler plan, stormwater management compliance, and school impact fee clearance through the Mt. Diablo Unified School District. Utility connections go through PG&E and EBMUD. We pull and manage all permits as part of our contract so you do not have to track multiple agencies on your own.
Can Bayside build on a lot I already own in Concord?
Yes, and that is one of the more common scenarios we work with. Before we price the project, we look at zoning, setbacks, lot coverage limits, slope, and existing utility stubs. Some lots in Concord have deed restrictions or HOA rules that affect what can be built. We do a site review early so there are no surprises once design starts. If you are still looking for land, we can tell you what to look for before you make an offer.
Keep exploring
Other services in Concord
Bathroom Remodeling→Kitchen Remodeling→Home Renovation→Home Addition→Adu→
Planning your remodel?
Bayside gives free, itemized estimates with no pressure to sign.