FAQs

What services does O2 Design & Drafting provides?

O2 Design & Drafting specializes in residential drafting services throughout the Bay Area. Our core offerings include ADU plans, garage conversion plans, home addition plans, remodel plans, as-built drawings, site plans, floor plan drafting, Title 24 plans, and permit drawings — everything needed to get your project approved and built.

How much do your drafting services cost?

We offer affordable drafting services tailored to your project scope. Pricing depends on the type of project (ADU, remodel, addition, garage conversion), square footage, and permit requirements. Contact us for a free quote. We're committed to providing competitive, transparent pricing with no hidden fees.

Yes! ADU drafting services are one of our specialties. We produce complete, permit-ready ADU plans that meet California state law and local city requirements. Whether you're planning a detached unit, attached addition, or junior ADU, we handle the architectural drafting services and construction drawings from start to finish.

ABOUT OUR SERVICES

ADU & Conversions

Can you create ADU plans for my property?

Do you draft garage conversion plans?

Absolutely! Garage conversions are a popular and cost-effective way to add living space or an ADU. We prepare complete garage conversion permit plans, including floor plan drafting, structural notes, and all drawings required for city approval, so your project moves smoothly through the permitting process.

What is the difference between a JADU and a standard ADU?

A Junior ADU (JADU) is up to 500 sq ft and is created within the existing walls of a home, often from a bedroom or garage. A standard ADU can be up to 1,200 sq ft and may be detached, attached, or converted. Both require permit drawings. We create permit-ready plans for both types and will advise which best fits your property and goals.

Permits & Compliance

What are permit-ready plans and why do I need them?

Permit-ready plans are a complete set of construction drawings formatted to meet your city's building department standards. Without them, your permit application will be rejected or delayed. We produce building permit plans that are accurate, code-compliant, and designed for fast permit approval, minimizing costly back-and-forth with the city.

What is a Title 24 report and do I need one?

Title 24 is California's Building Energy Efficiency Standards. Most new construction, additions, and major remodels require a Title 24 compliance report as part of the permit package. We prepare Title 24 plans as part of our drafting services, ensuring your project meets state energy code requirements and sails through plan check.

What does a typical permit plan set include?

A full permit plan set typically includes a site plan showing property boundaries and setbacks, floor plan drafting for all levels, elevation drawings, cross-sections, structural notes, and a Title 24 energy report. For ADUs and additions, we also include as-built drawings of the existing structure. We tailor every set to the specific city's checklist.

How long does it take to get permit-ready plans?

Turnaround depends on project complexity, but we're known for our fast permit plans. Simple remodels and garage conversions are often completed in 1–2 weeks. ADU plans and home addition plans typically take 2–3 weeks. We also offer expedited drafting when you're on a tight timeline. Just let us know upfront.

Remodels & Additions

Do I need plans for a home remodel?

Yes, for most structural or layout-changing remodels you need remodel permit drawings submitted to your city. This includes kitchen expansions, opening walls, moving load-bearing elements, or converting spaces. We create remodel plans that are clear, code-compliant, and designed to get approved on the first submission.

Do I need plans for a home remodel?

Yes. We specialize in home addition plans for everything from single-room expansions to full second-story additions. We handle the full drawing package: existing and proposed floor plan drafting, site plans, elevations, and Title 24, so you have everything needed for plans for city approval.

Process & Working with Us

What information do you need to get started?

To kick off your project, we typically need your property address, a description of the project scope, any existing floor plans or as-built drawings you have, and photos of the space if relevant. For new ADU plans or home addition plans, a site visit or survey may also be needed. We'll walk you through exactly what's required during our intake call.

What information do you need to get started?

Absolutely! Navigating city requirements is part of what we do. We're familiar with permit requirements across Bay Area jurisdictions. We'll advise on what's needed for your specific project type and location so there are no surprises at plan check.

Do you offer custom home plans?

Yes! While we specialize in permit drawings for ADUs, remodels, and additions, we also produce custom home plans for ground-up residential projects. Every set is drafted from scratch to reflect your design, lot constraints, and local building code (no cookie-cutter templates).

For Contractors

Do you work directly with contractors?

Absolutely! We love working with Bay Area contractors and builders as a long-term drafting partner. We provide permit plans for contractors, revision support drafting, and drafting services so your crews stay in the field. Our plans are contractor-friendly: clearly dimensioned, formatted for field use, and built to minimize RFIs.

Can you handle CAD drafting and revisions for my projects?

Yes! We offer full CAD drafting services, including creating new drawing sets from scratch and providing revision support drafting on existing documents. If your project scope changes mid-build, we update drawings quickly so you stay on schedule. Reliable permit plans and fast turnaround drafting are core to how we serve contractors.

What's your typical turnaround time for contractor projects?

We prioritize fast turnaround drafting for our contractor clients. Standard plan sets are typically delivered within 5–10 business days. For repeat contractor relationships, we offer priority scheduling and can often accommodate tighter deadlines. We understand that delays in construction drafting services cost money, so we don't waste yours.

Do you communicate with my clients?

Yes! We can communicate with your clients directly if you prefer.

Areas We Serve

Major Bay Area Cities & Communities

San Francisco County

• San Francisco

San Mateo County

• San Mateo

• Burlingame

• Millbrae

• San Bruno

• South San Francisco

• Daly City

• Colma

• Pacifica

• Half Moon Bay

• Redwood City

• Menlo Park

• Atherton

• Belmont

• San Carlos

• Foster City

Santa Clara County

• San Jose

• Santa Clara

• Sunnyvale

• Mountain View

• Palo Alto

• Los Altos

• Los Altos Hills

• Cupertino

• Saratoga

• Campbell

• Los Gatos

• Milpitas

• Morgan Hill

• Gilroy

Alameda County

• Oakland

• Berkeley

• Alameda

• Emeryville

• Piedmont

• Fremont

• Union City

• Newark

• Hayward

• San Leandro

• Pleasanton

• Dublin

• Livermore

• Castro Valley

Contra Costa County

• Walnut Creek

• Concord

• Pleasant Hill

• Lafayette

• Orinda

• Danville

• San Ramon

• Richmond

• El Cerrito

• Martinez

• Brentwood

Marin County

• San Rafael

• Mill Valley

• Sausalito

• Novato

• Tiburon

• Larkspur

• Corte Madera

Sonoma County

• Santa Rosa

• Petaluma

• Sonoma

• Rohnert Park

• Healdsburg

Napa County

• Napa

• Yountville

• St. Helena

• Calistoga

Solano County

• Vallejo

• Benicia

• Fairfield

• Vacaville

Santa Cruz County

• Aptos

• Aptos Hills-Larkin Valley

• Ben Lomond

• Bonny Doon

• Boulder Creek

• Brookdale

• Corralitos

• Davenport

• Day Valley

• Felton

• Freedom

• Interlaken

• La Selva Beach

• Live Oak

• Lompico

• Mount Hermon

• Opal Cliffs

• Paradise Park

• Pasatiempo

• Pleasure Point

• Rio Del Mar

• Seacliff

• Soquel

• Twin Lakes

• Zayante