Design Build Contractor in Orange County
Millennium Construction is one of the few general contractors in Southern California that handles both the design work and the building on every project. We are the estimator and the designer, which lets us explore multiple design alternatives and deliver a superior, cost-efficient project. You contract with one company for the full duration of the work.
- 2D and 3D design before anything is built
- One company from first drawing to final walkthrough
- Family-owned since 2002, 10-year workmanship warranty
Understanding Design-Build
Design-build means one company carries your project from the first concept through to completion, instead of handing you a designer, a bidder, and a builder who answer to nobody in common. We believe interior and exterior remodeling should not be a guessing game. Because we design and estimate the work ourselves, we can test alternatives against your budget while they are still drawings.
Our clients are not paying for a set of plans. They are buying the certainty of knowing what they will get before construction starts, and that is what the design phase is for.
Serving Orange County and Surrounding Areas
- Newport Beach
- Huntington Beach
- Costa Mesa
- Laguna Beach
- Corona del Mar
- Irvine
- Tustin
- Orange
- Santa Ana
- Fountain Valley
- Mission Viejo
- Laguna Niguel
- Laguna Hills
- Aliso Viejo
- Dana Point
- San Clemente
Millennium Construction works throughout Orange County from our Newport Beach and Santa Ana offices. Staying inside one county means our crews know the local permitting offices and the conditions each community presents. If you do not see your area listed, please reach out and we will confirm availability.
Our Design Services

3D Design Rendering
Our cutting-edge visualization tools provide a lifelike preview of your project, from custom exterior remodels to interior spaces. You see the finished result from the angles you will actually stand in, with the materials, colours and layout in place, which is the difference between approving a plan and approving the project itself.

2D Design and Space Planning
Layouts, elevations and plans that establish how the space works before anyone looks at finishes. This is where circulation, proportion, and how each area connects to the next get resolved, and it is far cheaper to solve on paper than on site.

Design-Build Project Planning
We act as both the construction estimator and the designer, which lets us explore multiple design alternatives and keep a close eye on the budget as the design develops. Design-build preserves the integrity of a project so it is optimally organized and constructed from beginning to end.

Material and Finish Selection
We walk you through materials, finishes, and fixtures and show them in context in your renderings rather than as isolated samples. Selections are settled during design because they affect what gets built and when it has to be ordered.

Interior and Exterior Design
Our tailored process covers residential projects inside and out, whether it is a kitchen and bath remodel or a full exterior landscape project. Because we build both, the interior and the outdoor space can be designed against each other rather than separately.

Design Carried Through to Construction
The people who draw your project are accountable to the people who build it. Contracting with one company for the full duration guarantees a timely completion and removes the gap where misunderstood intentions usually cost time and money.
Our Design Process
Step 1 - Consultation and Site Visit
We visit your property to understand what you want to achieve, how the space is used now, and what is constraining it. Existing conditions, structure, and the practical realities of the site are assessed before any design work begins.
Step 2 - Concept and Space Planning
We develop the layout in 2D, establishing how the space works and how each area connects to the next. Because we estimate as we design, we can test alternatives against your budget while they are still drawings.
Step 3 - 3D Design Rendering
Your project is rendered in 3D so you can see a lifelike preview before construction. You review the finished result in context, from custom exterior remodels to interior spaces, and request changes while they cost nothing but time.
Step 4 - Material and Finish Selection
We walk you through materials, finishes, and fixtures and show them in your renderings rather than on a sample board. Selections are confirmed here because they drive both the look and the ordering schedule.
Step 5 - Scope, Budget and Approval
We finalise the full scope against your budget and you approve the design before construction begins. Our design process greatly reduces the possibility of facing costly changes once work is underway.
Step 6 - Handoff to Construction
The approved design moves straight into construction with the same company and the same point of contact. There is no rebidding, no reinterpretation and no gap where the intent gets lost.
Why Orange County Homeowners Choose Millennium Construction
The usual arrangement puts a designer, a general contractor, and a set of subcontractors on the same project with no shared accountability. The design gets reinterpreted at bid, the builder changes what the designer intended, and the homeowner arbitrates. Contracting with one company for the full duration removes that entirely.
We Design, and We Build
Millennium Construction is one of the few general contractors in Southern California that does both the design work and the building aspects of all our projects. We are the construction estimator and the designer on every job.
Alternatives Explored Before You Commit
Being both designer and estimator lets us explore multiple design alternatives, which benefits you with a superior and more cost-efficient project. Options get tested while they are still drawings rather than discovered as change orders.
A Lifelike Preview, Not a Promise
Our cutting-edge visualization tools provide a lifelike preview of your project, from custom exterior remodels to interior spaces. Remodeling should not be a guessing game, and seeing it in 3D is what removes the guessing.
Fewer Costly Changes During Construction
Our design process greatly reduces the possibility of having to face costly changes during construction. Working with a design-build company virtually eliminates misunderstood intentions, saving time and expense once the work begins.
Inside and Out, One Team
We design and build residential projects across interior and exterior work, from kitchen and bath remodels to full exterior landscape projects, pools, outdoor kitchens, and hardscape. The whole property can be planned as one.
Family-Owned Since 2002
More than two decades designing and building in Orange County, with an A+ BBB rating, a perfect CSLB record, and five-star ratings on Google, Yelp, and Houzz.
What Our Clients Say
“This is the 2nd project that Eddie and his skilled crew at Millennium Construction have completed at my home. The quality of workmanship, professionalism and timeliness of both projects has been exemplary. The office staff is also very pleasant and extremely professional…”
“I interviewed a lot of contractors for my backyard remodel and Eddie immediately stood out from the rest. He really listened and incorporated everything that I wanted into the design and added excellent details and adjustments that only an experienced contractor that really cared about quality and functionality would do…”
“Working with Eddie has been a great experience. It was a massive undertaking but everything we hoped for came to fruition with their amazing team of professionals and craftsmen. They delivered on-time and on budget…”
“A few years ago, we hired Millennium Construction to re-model our old, brick-paved backyard and pool area. We had a vision of what we wanted, and Eddie and his crew took it a step farther. They showed us beautiful 3-D renderings of what they had envisioned, and it was a beautiful makeover…”
“Millennium did an outstanding job on our new hardscape and porch replacement! A complex drainage system was also installed. Eddie (the boss) was very accessible. Their staff were talented craftsmen and very fine people…”
Frequently Asked Questions
What is a design-build contractor?
A design-build contractor handles both the design work and the construction on the same project. Millennium Construction is one of the few general contractors in Southern California that does both, acting as the designer and the construction estimator, so you contract with one company for the full duration of your project.
What is included in your design services?
2D design and space planning, 3D design rendering, material and finish selection, and full project planning with estimating carried alongside the design. The process covers residential projects inside and out, from kitchen and bath remodels to full exterior landscape projects.
What is a 3D design rendering?
It is a lifelike preview of your finished project produced with our visualization tools, covering custom exterior remodels through to interior spaces. You see the layout, materials and finishes in context and approve the result before construction begins rather than imagining it from a plan.
Why choose a design-build contractor instead of hiring separately?
A design-build contractor handles both design and construction, which avoids the communication and scheduling problems that come from splitting them. It virtually eliminates misunderstood intentions, saving time and expense during construction, and it means one company is accountable for the result.
Will the design process keep my project on budget?
Because we are the estimator as well as the designer, the budget is considered as the design develops rather than after it is finished. Our process keeps a close eye on your budget and greatly reduces the possibility of facing costly changes once construction is underway.
Do you design interior projects as well as outdoor spaces?
Yes. Our tailored process covers residential construction projects inside and out, whether it is a kitchen and bath remodel or a full exterior landscape project. Because we build both, your interior and outdoor spaces can be designed to work together.
What areas do you serve?
We work throughout Orange County from our Newport Beach and Santa Ana offices, and across Southern California from Orange County to San Diego. If you do not see your area listed, please reach out and we will confirm availability.
Have More Questions?
Ready to See Your Project Before It Is Built?
Remodeling should not be a guessing game. Millennium Construction designs and builds every project in-house across Orange County, so you approve a lifelike 3D preview before construction starts and deal with one company from the first drawing to the final walkthrough.
Creating happiness through Building and Design.