What Is ADU Construction?
ADU construction involves planning, permitting, and building a self-contained living space on a residential property , adding value, flexibility, and income potential without buying new land.
Follow Us
Engineering Coordination
Bring the technical pieces together.
Keep the architectural proposal and technical disciplines working toward the same project. Uni Construction helps coordinate engineering inputs, required documentation, and review questions so important decisions are resolved across the drawing set.
Los Angeles ADU BUILDERS
Our Promise To You
Engineering Coordination for your property
Engineering Coordination for your property
A building project brings together different kinds of information. The room layout, structure, equipment, site conditions, and approval requirements can influence one another. Coordination makes those relationships visible and gives each issue a responsible party and a place in the documents.
20 years of ADU expertise
Engineering coordination is different from the professional calculations and design assigned to a licensed engineer. Your scope should identify each discipline, the responsible professional, and the documents they provide. That distinction helps prevent missing work or a mistaken assumption that someone else has resolved a technical question.
Engineering Coordination for your property
Identify the project type and technical inputs expected for the agreed stage. Record the architectural, structural, energy, site, and systems responsibilities as applicable. Confirm who contracts each specialist and who gathers the information they need.
Trust the process, love your ADU
Provide consistent plans, dimensions, site information, and design decisions to the involved parties. Track revisions so an engineer is not designing from an outdated layout. Identify uncertain existing conditions that may require investigation before calculations or details can be completed.
50+ five-star reviews
Need an ADU? We handle everything.
-
Feasibility
-
Design & Plan
-
Permit
-
Build
Start with inspiration
Browse ADU floor plans
Review where disciplines meet: openings and framing, foundations and utilities, equipment and room layouts, or site levels and building entries. Bring questions to the responsible professional. Coordination should lead to clear decisions rather than unsupported substitutions.
4 BR | 2 BA
- 1192 SF
- 4 Bed
- 2 Bath
2 BR | 2 BA
- 749 SF
- 2 Bed
- 2 Bath
2 BR | 2 BA
- 800 SF
- 2 Bed
- 2 Bath
2 BR | 1 BA
- 650 SF
- 2 Bed
- 1 Bath
1 BR | 1 BA
- 400 SF
- 1 Bed
- 1 Bath
we handle everything
End-to-end ADU project management
As experienced ADU builders, we make the process easy, handling everything from design to construction with clarity and precision. Our team manages each step to deliver high-quality results and complete peace of mind, so you can simply enjoy your new space.
Before we start building your Accessory Dwelling Unit, we do a detailed feasibility study, evaluating zoning regulations, building codes, and potential red tape to show exactly what’s possible for your property. Whether you envision multigenerational living or a backyard cottage, we align design with legal requirements and your lifestyle goals. Our streamlined process establishes a realistic budget, passive income potential, sets clear expectations, and provides full transparency and confidence for your long-term investment from day one.
Learn more
Organize authority comments and technical clarifications by responsible party. Coordinate revised documents and communicate their effect on the rest of the set. During construction, route engineering questions to the appropriate professional and retain written responses.
Forget the complexities of permits and building codes, we handle it all. Our experienced team manages every detail of permit submissions, building department approvals, code compliance, and inspections, ensuring a smooth and swift process that keeps your accessory dwelling unit project on track without delays.
Learn more
Your dedicated Project Manager oversees the entire construction process of your ADU. They handle everything from utility integration to final touches. They ensure the project progresses on time, maintains quality, and communicates clearly at every step. Our general contractors deliver high-quality workmanship, bringing your vision to life seamlessly and without surprises.
Learn more
Review the proposed project, available drawings, records, and scope boundaries. Identify missing information and required specialist involvement. Agree the deliverables for the next stage rather than assuming a full engineering package is already defined.
Coordinate the current plan and relevant site information with the specialists. Confirm key dimensions, equipment, and design choices. Record assumptions and issues requiring further review before they spread across several documents.
Maximize your accessory dwelling unit investment by boosting your property value and earning extra income with our comprehensive rental support services. From market analysis and tenant attraction to compliance guidance, we'll help you confidently navigate renting your ADU, ensuring optimal returns, extra income, and minimal stress.
Learn more
Track conflicts and dependencies, obtain decisions from the responsible professionals, and update affected documents. A structural change may affect the architecture; a systems change may require space or a different route. Close the loop across disciplines.
ADU design & construction in Los Angeles
Serving homeowners across Los Angeles and surrounding cities, with offices in Diamond Bar, Los Angeles, and Pomona.
Exploring ADU Options
Where should I start with my ADU?
Thinking about an ADU
Not sure if an ADU is right for you? Curious about costs of building, zoning details, or whether you need a feasibility study? We can walk you through the basics and give you a clear picture of your options and the basics of ADUs.Start here to learn the basics
I’m weighing my options
Done some research but still comparing paths? Should you hire separate designers and ADU builders, general contractors, or one trusted design-build partner? Learn why the design-build approach cuts through red tape, saves time, and delivers better value.The design-build difference
I’m ready to build my ADU
If you’re ready to move forward, we’ll make the process seamless. Our team will review your property, handle permits, and create a tailored plan to design and build your ADU, so you can focus on enjoying your new space.Get my custom ADU proposal
ADU Regulations
The easy way to build an ADU is here
Coordinate submission inputs, plan-check responses, or construction clarifications as included. Keep issued sets and revisions identifiable. Confirm the scope of any further services required when the project advances or changes.
Smaller ADU setbacks
Allowing you to do more with your property.
Reduced ADU costs
Carrying out cost-effective construction without compromise.
Expedited ADU approvals
Speeding up the permit approval timeline for ADUs.
ADU parking requirements
Alleviating the parking space requirement for ADUs.
Additional ADUs
Supporting both ADUs and Junior ADUs on a single property.
Bigger ADU builds
Greater build sizes Making even larger ADUs possible.ADU INSIGHTS
ADU contractors you can count on
Engineering Coordination for your property
ADU construction involves planning, permitting, and building a self-contained living space on a residential property , adding value, flexibility, and income potential without buying new land. In California, ADUs now make up about one in six new homes, reflecting their growing role in solving the state’s housing shortage.
Engineering Coordination for your property
The answer follows the proposed work, authority requirements, and actual site conditions. Ask for a responsibility schedule that identifies required inputs and exclusions instead of assuming every project needs the same consultants.
Engineering Coordination for your property
The appropriate professional should make and document decisions within their discipline. Coordination helps move the question to that person and communicate the outcome; it should not obscure professional responsibility.
Engineering Coordination for your property
Separate measured or verified information from assumptions and records that may not reflect current conditions. Agree what investigation is needed and when. Clear inputs reduce avoidable redesign later in the process.
Calculate your
ADU ROI
Our calculator offers a clear look at what your return on investment will be for your ADU project.
Total Return On Your ADU Investment
1,739%
Compare to other investments:
Real Estate
Avg. 6-8%
Stocks
Avg. 5-7%
Savings Account
Avg. 2-4%
Financing your ADU
made simple
We proudly extend flexible financing options to the homeowners we serve, breaking down the full cost of an ADU into manageable payment schedules. Here's how our process works.
1
Easily apply online
Easily apply with our hassle-free online process.
2
Pre-qualify
See if you pre-qualify for an even quicker turnaround.
3
Fast review process
Sit back and relax while we handle the review process.
4
Approval
Receive a notification the moment you’re approved.
Your top ADU questions answered
Answers to your most common ADU building questions.
No. Structural engineering includes professional structural analysis, design, and documentation. Coordination organizes how that work connects with other disciplines. The agreement should identify the responsible structural professional and their specific scope.
Share the current documents, file formats, permissions, and each party’s scope. We can discuss the coordination needed and agree who makes design decisions, updates drawings, and communicates with the authority.
Only when that service is expressly included. Design coordination, permit support, construction administration, and management of the build are different responsibilities. Define the stage and deliverables in the written proposal.