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.
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Drafting Services
Drawings that communicate the work.
Turn property information and design decisions into drawings that other people can use. Uni Construction provides drafting for existing conditions, proposed layouts, and agreed architectural or construction documentation.
Los Angeles ADU BUILDERS
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Drafting Services for your property
Drafting Services for your property
Good drafting makes relationships legible: what exists, what changes, where elements are located, and which details explain the work. A clean-looking plan still needs consistent dimensions, labels, references, and a defined purpose. Start by deciding who will use the drawings and what decision or submission they must support.
20 years of ADU expertise
A measured drawing, a concept plan, and a coordinated construction set are different deliverables. Drafting records and communicates information; it does not automatically include a new design, concealed-condition investigation, engineering calculations, or approval. Define those responsibilities before work begins.
Drafting Services for your property
Document the agreed areas using available records and measurements within the scope. Identify visible features and limitations. Existing-condition drawings should not imply that concealed foundations, framing, or services have been verified when they have not been investigated.
Trust the process, love your ADU
Translate approved design decisions into clearly organized plans and related views. Show room use, dimensions, openings, and relevant existing or removed work. Maintain consistent labels and references so readers can follow the proposal across the drawing set.
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Need an ADU? We handle everything.
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Feasibility
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Design & Plan
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Permit
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Build
Start with inspiration
Browse ADU floor plans
Prepare the agreed elevations, sections, details, schedules, and coordination information for the project stage. Use specialist inputs where required. A drawing list helps clarify what is included and what another professional must provide.
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.
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Track design changes and review comments against identifiable drawing versions. Update affected views together. Confirm included revision rounds, source-file deliverables, and the process for additional scope so the latest issued package remains clear to everyone involved.
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.
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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.
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Explain whether the drawings support a concept discussion, existing-condition record, permit submission, or construction. Share records, sketches, photos, and any previous files. Agree the areas, sheet types, and level of detail.
Identify what will be measured, supplied by the owner, or provided by another professional. Record limitations and assumptions. Resolve significant missing information before treating a drawing as a reliable basis for further design.
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.
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Develop the agreed views with consistent dimensions and references. Incorporate approved design decisions and supplied specialist information. Check changes across plans, elevations, sections, and schedules rather than editing one view in isolation.
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
Collect consolidated comments, make agreed revisions, and issue an identifiable set. Confirm file formats and permitted use. If authority comments or later design changes require further work, define that additional scope before proceeding.
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
Drafting Services 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.
Drafting Services for your property
If the layout itself needs to be developed, include building design in the scope. If the design is supplied, confirm who approves decisions and checks suitability. Drafting should not silently absorb undefined design responsibility.
Drafting Services for your property
State the expected deliverables and formats in the agreement. An editable source file, a plotted PDF, and a consultant reference file serve different purposes. Confirm compatibility, rights of use, and what future revisions may require.
Drafting Services for your property
Define the project area and the existing elements affected by the proposed work. Measuring only one room may be insufficient when the proposal relies on connections to other rooms, site features, or the rest of the building.
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.
A sketch can communicate the idea. We still need a reliable information base, clear dimensions, and agreement on whether design development is included. A sketch alone should not be assumed to establish boundaries, structure, or code compliance.
Only if the resulting package meets the authority’s requirements for the proposed work. Engineering, energy documentation, surveys, or other professional inputs may also be needed. Define the complete submission responsibility before choosing a drafting-only scope.
Confirm that in the proposal, including format, permitted use, and any third-party information embedded in the set. Editable files should not be assumed to be included simply because a PDF drawing package is delivered.