Basic
$190,000–$215,000
Tier includes. Simple stucco exterior with standard cabinetry, countertops, durable flooring, and standard plumbing and lighting fixtures.
Accessory dwelling units in Orange County, CA
One team for your Orange County ADU
From the first property review to final handover, Luxiero Homes coordinates design, engineering, permitting, and construction. We serve homeowners throughout Orange County, with a focus on South Orange County.
Compare ADU Options and Costs Request a Property Feasibility AssessmentOne design. Three specification levels.
Compare planning ranges for the same roughly 500 sq. ft. detached one-bedroom ADU in Orange County. These are preliminary design and construction budgets. A property review is needed for a project quote.
Concept renderings illustrate possible finishes. Every range includes a standard concrete slab on a suitable lot. Grading, site utility connections, and required third-party testing are priced separately. See the full list of inclusions and separate costs.
Midrange
Recommended starting point
$210,000–$245,000
Tier includes. Upgraded cabinetry and countertop allowances, more choice in lighting and flooring, added storage options, and an exterior accent allowance.
High-End
$240,000–$295,000
Tier includes. Premium interior and exterior finishes, upgraded insulation, air sealing and windows, and efficient all-electric heating, cooling, and water heating. Solar is priced separately.
What each planning range covers
Basic, Midrange, and High-End use the same site assumptions. Each range includes its own finish and equipment package shown above. We confirm the scope and allowances in your written proposal after reviewing the property.
Included in all three tiers
- Design and permits. Design, standard structural and energy documentation, permit submittal, and plan-check coordination.
- Standard concrete slab. Excavation for the foundation, forming, reinforcement, and a typical engineered slab-on-grade under the ADU on a level, accessible lot with suitable soil.
- Construction and handover. The selected finish package, in-unit plumbing and electrical systems, and scheduling and coordination of routine building department inspections.
Priced separately for all three tiers
- Site work. Lot grading and major earthwork, demolition, retaining walls, and soil import or export.
- Additional concrete and foundations. Separate pads, patios and driveways, nonstandard foundations, and garage structures for homes above garages.
- Utilities. Site trenching, connections to existing services or utility mains, meter or panel upgrades, and utility fees.
- Fees and third-party inspections. Permit and agency fees, plus independent testing or inspections when required, such as soils and compaction tests, concrete testing, or energy verification.
- On-site generation. Required or optional solar PV equipment and installation, battery storage, and any feasible small-wind system.
Preserving yard space or working with a sloping lot? Explore an ADU above a garage.
One team from property review through handover
Luxiero Homes coordinates the design, permit process, and build under one project scope. Each phase informs the next, so layout, utility connections, finishes, and construction costs can be considered together early.
- Find out what fits. Review the lot, access, existing structures, utilities, and what you want the ADU to do.
- Develop the design and permit package. Coordinate the plans, structural engineering and energy documentation as needed, submit the package, and respond to plan-check comments within the agreed scope.
- Build, inspect, and hand over. Coordinate the trades and owner selections, schedule required inspections, and review the completed work and closeout documents with you.
We compare site-built and off-site methods where appropriate. That includes options for narrow or sloping lots, such as an ADU above a garage.
Already have plans, a permit, or work underway?
Bring us your drawings, permit number, plan-check notes, or inspection records. A project review can help you understand what can carry forward, what needs revision, and how much work remains.
- Build on work you’ve already paid for. We review whether your drawings and approvals can be reused, subject to permission to use the plans and the local building department’s requirements.
- Identify gaps before you commit. We compare the drawings with the property, permit and inspection records, and visible work. We flag unresolved corrections, missing documents, and any work that needs further evaluation.
- Get a written scope for completion. If we can take on the project, we identify remaining work, allowances, responsibilities, and warranty coverage for the work Luxiero would perform.
High-End ADUs can target net-zero energy
For an all-electric ADU, the goal is to generate enough renewable electricity on site over a year to match the ADU’s annual electricity use. At feasibility, we review the roof, shade, and site conditions. During design, energy modeling can estimate electricity use and expected solar production.
- Use less energy. High-performance wall and roof insulation, careful air sealing, efficient windows, and right-sized heat pumps can reduce heating, cooling, and water-heating demand.
- Generate electricity on site. Start with solar photovoltaic (PV) panels sized for the ADU’s modeled demand and the property’s available sun. We review applicable solar requirements at every specification level.
- Assess small wind where it fits. A small wind turbine may be feasible where the measured wind resource, siting, and local permitting support it. Nearby roofs and trees can create turbulence that reduces output.
ADU frequently asked questions
What do the Basic, Midrange, and High-End ranges cover?
Every range includes design, permit coordination, a standard concrete slab on a suitable lot, construction, and coordination of routine building department inspections. Finish and equipment allowances vary by tier. See what’s included and what’s priced separately.
Who handles inspections and testing?
Luxiero Homes schedules and coordinates routine building department inspections. If the project requires an independent inspector or testing agency, the proposal identifies that scope and how the separate fees are handled.
What does Luxiero handle from start to finish?
We can coordinate property feasibility, design and engineering, permit submittal and plan-check responses, construction, inspections, and handover. Your proposal lists the services, fees, allowances, and responsibilities that apply to your project.
Can I switch to Luxiero if I already have plans or a permit?
Yes, we can review your project at that stage. Please share the latest plan set, open corrections, and permit details. We check what can be used, whether you have permission to reuse the plans, and what the city requires to update the permit.
Can Luxiero take over after work has started?
We evaluate these projects case by case. Inspection records, the status of the prior agreement, and the condition of the work help determine whether we can take it on. Our written scope identifies what we would complete, correct, and cover under our warranty.
How long will my ADU take?
We discuss an initial schedule after the property or project review. Design revisions, city review, utility work, materials, and site access all affect when construction can start and how long it takes.
Will my lot work for an ADU, including one above a garage?
We start with your city and property conditions, including room on the lot, access, utilities, and relevant zoning. For an ADU above a garage, the review also covers height, stairs, garage separation, and structural support.
Can I choose modular construction or target net-zero energy?
We compare site-built and off-site methods when the scope, delivery access, and installed cost support them. High-End can target net-zero energy through improved insulation and air sealing, efficient all-electric systems, and solar sized against modeled use and site conditions.
Where do you build, and what should I send first?
We serve homeowners across Orange County, with a focus on South Orange County. Start with the property city, your intended use, and where you are in the process. Tell us if you already have plans, a permit, or construction underway.
Request a Property Feasibility Assessment
Tell us the property city, how you want to use the ADU, and where you are in the process. If you already have plans, a permit, or work underway, tell us that in the project description. You can select “Undecided” for the finish level.
- Start with your property. We discuss the available space, access, utility connections, and what’s already on the lot.
- Identify questions to resolve. We discuss what may need to be confirmed with the local jurisdiction or project professionals.
- Define the next step. We discuss the design options, scope, pricing, and schedule once we understand the site and your priorities.