Last month I sat down with a couple who got pre-approved for $875,000. They were thrilled. They started browsing listings in North Park, eyeing those renovated Craftsman bungalows near Ray Street that pop up in the low $800s. On paper, everything checked out.
Then we looked at what their monthly payment would actually be.
Property taxes in San Diego County run about 1.1 to 1.25 percent depending on the area and any Mello-Roos. HOA if applicable. Homeowner's insurance, which has jumped noticeably over the past two years. PMI if you're under 20 percent down. When we added it all up, their comfortable monthly number pointed closer to $725,000. That's a $150,000 gap between what a lender said yes to and what their life could absorb without stress.
This happens constantly. Lenders approve based on debt-to-income ratios and credit scores. They don't know you want to keep traveling twice a year. They don't know your car lease resets in eight months. They don't factor in that your student loan payments restart soon.
I think the whole "get pre-approved first" advice, while correct, gives people a false sense of clarity. The approval number becomes an anchor. You start filtering searches at that ceiling. You tour homes at that ceiling. And then you're emotionally attached to a house that's going to squeeze you every single month for the next 30 years.
Here's what I walk first-time buyers through before we ever open a listing portal:
Start with your actual monthly take-home. Subtract everything that isn't going away: car payments, subscriptions, food, savings you refuse to cut, the stuff that makes your life yours. What's left is your real housing budget. Back into a purchase price from there.
Sometimes that number is close to approval. Sometimes it's $100K less. Either way, you're shopping with your eyes open.
The buyers I mentioned? We shifted the search. Found a solid two-bedroom in City Heights that closed at $689,000 in April. They're not stretched. They still eat out on weekends. They're not one emergency away from panic.
A lender tells you what you can borrow. Nobody but you knows what you can spend. Those are different conversations, and mixing them up is one of the most expensive mistakes I see first-time buyers make.
So before you fall in love with a listing, do the unsexy math first.