Permits & Planning

Bay Area building permits are notoriously complex — every city has its own fee schedule, submittal checklist, and processing timeline, and the rules seem to change every year. Whether you're planning an ADU in your backyard, converting a garage into a living space, or adding a second story to your home, this category brings together step-by-step guides covering San Jose, Oakland, Fremont, and cities across the Bay Area — so you can move through the permit process with confidence instead of guesswork. Many guides are also available in Spanish for homeowners who prefer to navigate this process in their primary language.

What These Guides Cover

Permits touch nearly every part of a home project, and the requirements vary more than most homeowners expect. This category breaks down the full landscape of Bay Area permitting and planning rules, including:

• ADU permit requirements, setback rules, & city-by-city fee breakdowns
• Garage conversion permits & what triggers a full structural review
• Home addition & kitchen remodel permits — what requires a permit and what doesn't
• California ADU laws, state preemptions, & how they override local ordinances
• SB 9 lot splits — eligibility, costs, & the application process
• Title 24 energy compliance for new construction & major renovations
• Bay Area green building codes & sustainability requirements
• HOA approval processes for additions, ADUs, & exterior changes

Why Bay Area Permits Are More Complicated Than Most

California state law sets a baseline — but individual cities and counties layer on their own zoning overlays, design review requirements, school impact fees, and submittal procedures. A detached ADU that sails through approval in San Jose might face additional hurdles in Oakland or require a separate HOA vote in a planned community. State legislation like SB 9 has opened new paths for lot splits and duplexes that many homeowners don't know they qualify for, while Title 24 energy standards add a compliance layer that surprises first-time builders. On top of that, fees, timelines, and over-the-counter eligibility shift as cities update their ordinances — sometimes mid-project.

These guides cut through the confusion by focusing on specific permit types in specific jurisdictions, giving you realistic timelines, current fee ranges, and the exact documentation most building departments ask for at submittal. Rather than generic advice, you'll find practical walkthroughs written for Bay Area homeowners dealing with Bay Area red tape.

Pick a guide below that matches your project and city — you're closer to breaking ground than you think.