Choose the decision you need to make next. Detailed legal guides below cover California; the general planning resources also serve U.S. homeowners. Neither replaces local approval.
1. Can this property support my idea?
Start with the property planning guide, then identify the correct permitting authority. Your output should be a list of parcel constraints and written questions—not an assumed approval.
Compare ADU configurations and, in California, JADU versus ADU before choosing a floor plan.
2. What must the budget include?
Use the cost calculator with your own documented inputs. For existing structures, read the California garage-conversion cost guide. Record included work and unresolved amounts in the budget worksheet.
Then compare financing structures and cash requirements. Keep borrowing, rent and resale value separate; none is a guaranteed return.
3. How do I move through permitting?
Follow the California permit-process guide. Use the permit and correction worksheet to track the actual agency checklist, submission receipt, notices and responses.
4. Which contractor and bid can I evaluate?
Use the contractor interview guide and evidence worksheet. Then compare bids on the same scope. Resolve material uncertainties individually instead of choosing by a numerical rating.
5. What happens after the permit is issued?
Read the construction-process guide and bring the meeting worksheet to each project check-in. Track upcoming inspections, decisions, written changes and handover records.
How do I use a worksheet?
The linked browser worksheets contain editable cells. Save through your browser’s Print → Save as PDF command before leaving or reloading; entries do not persist and the worksheets do not calculate automatically.
Need the whole sequence? Open the planning roadmap. Read our editorial and evidence requirements for how claims and examples should be supported.