Home drafting, design and Title 24 / CF1R energy calculations for ADUs, additions, remodels and new construction — drawn to what your city's building department actually requires, not a generic template.
Click a stage, or let it play — this is the same drawing set, four stages in.
Property lines, setbacks and existing conditions, confirmed before anything is drawn.
One person handling both your construction drawings and your Title 24 paperwork means nothing gets lost in translation between the two — and nothing holds up your permit because two different vendors didn't coordinate.
ADUs, additions, remodels, new construction and garage conversions — permit-ready drawing sets built around your city's specific submittal checklist.
Learn More →California energy compliance documentation for new construction, additions and remodels — calculated for your building's actual climate zone and assemblies.
Learn More →Complete drawing packages — site plans, floor plans, elevations, sections and details — prepared for building department plan check.
Learn More →Bundled structural drawings and energy compliance for projects that need both — one coordinated submittal instead of two separate vendors.
Learn More →Coordination with licensed structural engineers for projects that require an engineer's review or stamp before submittal.
Learn More →As-built drawings and retroactive permit sets to bring unpermitted work into compliance with your building department.
Learn More →Yuna Dao leads Yuna Drafting with a team bringing more than two decades of combined experience drafting homes across San Jose and the greater Bay Area — additions, ADUs, remodels and new construction, plus the Title 24 energy calculations that go with them. That's long enough to have watched local ordinances change, climate zone requirements get stricter, and plan check reviewers get pickier about exactly how a drawing set is organized. Yuna Drafting exists to put that experience to work on your project, instead of you finding out the hard way what your city's plan checker wants.
No black boxes. Four steps, from first conversation to permit-ready plans.
We review your property, your goals and your city's zoning rules, and confirm what's actually possible on your lot — free.
Full construction drawings prepared to your building department's submittal checklist, with revisions built into the process.
Energy calculations and CF1R documentation coordinated with the drawing set so everything submits together.
If the building department comes back with corrections, we revise and resubmit — you're not on your own after the first draft.
Based in San Jose, working across Santa Clara and Alameda counties and the wider Bay Area.
Not sure if we cover your address? Ask us — we'll confirm quickly.
How to Get an ADU Permit in Santa Clara County: A Step-by-Step Guide — a complete guide by Yuna Drafting.
Learn what drawings and documentation California owner-builders must submit to pull permits legally, even without a licensed contractor.
Navigate Bay Area two-story addition permits with confidence—learn the structural and drafting requirements that keep your project code-compliant and on track.
It depends on scope and your city's requirements. Many ADUs, additions and remodels can be permitted with professionally drafted plans; some projects — larger new construction, certain structural conditions — require a licensed architect or engineer's stamp. We'll tell you upfront which applies to your project.
Drafting produces the construction drawings — floor plans, elevations, sections — that show what you're building. A Title 24 / CF1R report is a separate energy-compliance calculation required by California's Building Energy Efficiency Standards, showing your project meets the state's insulation, window, HVAC and other efficiency requirements for your climate zone.
Often yes, if the project touches building envelope, HVAC, water heating or lighting in ways that trigger compliance — the threshold varies by scope. We can tell you quickly whether your specific remodel needs one.
We're based in San Jose and work throughout Santa Clara, San Mateo and Alameda counties and the wider Bay Area, including Cupertino, Sunnyvale, Mountain View, Palo Alto, Menlo Park, Fremont, Milpitas, Santa Clara, Los Gatos, Los Altos, Saratoga, Campbell, Pleasanton, Dublin, San Ramon, Union City, Hayward, Castro Valley and Belmont.
Reach out with your address and a rough idea of what you want to build. We'll walk through zoning feasibility and next steps before anything is billed.
Both. Some clients hire us directly and bring in their own contractor after plans are done; others are referred to us by a contractor who wants drafting and Title 24 handled by a specialist.
Tell us what you're building and we'll get back to you with next steps — usually within one business day.
(408) 634-6655
Yuna Drafting
