Start with a payment, not a listing price
The first decision is how much home fits your everyday life. Add the mortgage, property taxes, insurance, any mortgage insurance, HOA dues, special taxes, utilities, and maintenance. Leave room for the expenses that do not disappear when you become an owner. A lender's approval ceiling and your comfortable payment are not necessarily the same number.
Use the monthly cost breakdown to understand the moving parts, then read how to set your buying budget. Keep an emergency reserve separate from the money you expect to bring to closing.
Get ready before touring
Gather income documents, bank statements, debt balances, and the information your lender requests. Ask what the preapproval actually verifies, when it expires, and what could change it. Compare written Loan Estimates for comparable loan scenarios rather than picking a lender from an advertised rate alone. Avoid opening new credit or changing jobs during the process without talking to the lender.
Discuss the scope, duration, compensation, and cancellation terms of a buyer representation agreement before signing. California has specific rules. Your agent should explain the actual agreement you are considering, not assume every form is identical.
Build a short neighborhood list
Try Pick Your San Diego and then compare the full guides. A condo in Mission Valley, an older house in Clairemont, and a planned-community home in Chula Vista create different ownership obligations. These are comparison examples, not claims that today's inventory fits a particular budget.
Drive the exact commute at your usual time. Walk the actual block. Verify school assignments with the district for the property address if that matters to your purchase.
Move from offer to investigation
An accepted offer begins the due-diligence period, not the end of your decision. Track deposit and contingency dates with your agent. Order inspections, review disclosures and title, confirm insurance, and keep the lender informed. Read the offer guide and inspection checklist before committing to remove protections.
Finish carefully
Read the Closing Disclosure, confirm how much cash is needed, complete the final walkthrough, and independently verify wire instructions with escrow using a trusted phone number. Do not assume signing automatically means the transaction has closed. Confirm recording and the agreed possession time. The closing checklist covers what to check before receiving keys.