How Much House Can You Afford? A Real Home Buying Budget Guide for Long Beach, LA & OC Buyers

By Costanza Genoese Zerbi | Long Beach Real Estate Agent

One of the first questions every home buyer asks me is: "How much house can I actually afford?" And it's the right question to ask — but the answer you get from a mortgage lender and the answer that's actually right for your life are often two very different numbers.

I've helped over 575 families buy and sell homes across Long Beach, the South Bay, Los Angeles County, and Orange County. And one of the most important things I do for my buyers isn't finding the right home — it's helping them set a realistic budget before they ever start looking. This guide walks you through exactly how to do that.

Step 1: Understand What Lenders Look At

When you apply for a mortgage, lenders aren't thinking about your lifestyle. They're running math. Specifically, they're calculating your debt-to-income ratio (DTI) — the percentage of your gross monthly income that goes toward debt payments.

Most conventional lenders want your total monthly debt (including your future mortgage payment) to be no more than 43–45% of your gross monthly income. Some loan programs will go up to 50% in certain cases.

Here's a simple example:

• Gross monthly income: $10,000

• Existing monthly debts (car payment, student loans, credit cards): $800

• Maximum total debt at 43% DTI: $4,300

• Maximum mortgage payment the lender allows: $3,500

At current rates — 30-year fixed mortgages in California are sitting around 5.875% as of late February 2026 — a $3,500/month payment (principal and interest only) supports a loan of roughly $585,000. Add a 10% down payment of about $65,000 and you're looking at a purchase price around $650,000.

That's what the lender approves you for. But here's the thing — that doesn't mean it's what you should spend.

Step 2: Build Your Own Budget (The Number That Actually Matters)

The lender's calculation ignores a lot of real life: what you spend on groceries, childcare, travel, retirement contributions, date nights, emergencies. Getting approved for a $650,000 home doesn't mean a $3,500 mortgage payment is comfortable for you.

A smarter approach is to start from what you can comfortably spend each month — before you ever talk to a lender.

Try this exercise:

Take your monthly take-home pay (after taxes, not gross) and subtract everything you genuinely spend each month: rent, car, food, subscriptions, dining out, savings contributions, kids' activities, the works. Whatever's left is the realistic ceiling for a housing payment.

Most financial advisors suggest keeping total housing costs (mortgage + property taxes + insurance + HOA if applicable) under 28–30% of your gross income. In the Long Beach and LA/OC market, that's a discipline that pays off — because these are expensive markets and being house poor here is very real.

Step 3: Know What "House Poor" Actually Looks Like in Long Beach

The average Long Beach home price is currently around $914,000 — up significantly from prior years. That means a buyer putting 10% down is financing roughly $820,000. At today's rates, that's a principal and interest payment of about $4,850/month. Add property taxes (~1.2% annually = ~$920/month) and homeowner's insurance (~$150/month), and total housing costs are approaching $5,900–$6,100/month.

To keep that comfortably under 30% of gross income, you'd want to be earning at least $240,000/year as a household.

Many buyers — especially first-timers — get approved for that loan and take it without thinking through the full picture. Then they're stretched. No travel. No savings. No breathing room. That's house poor. And in an expensive market like Long Beach, it's a situation I work hard to help my clients avoid.

Step 4: Factor In the Real Cost of Ownership

Your mortgage payment is just the start. Here's what Long Beach buyers should budget for beyond the loan:

Property Taxes: California property taxes are approximately 1.1–1.25% of the purchase price annually. On an $800,000 home, that's roughly $740–$830/month.

Homeowner's Insurance: Budget $100–$200/month depending on the property type and location.

HOA Fees: Many condos and townhomes in Long Beach — especially in Belmont Shore, Downtown, and Naples — carry HOA fees ranging from $250 to $600+/month. This significantly affects your buying power.

Maintenance: A good rule of thumb is 1% of the home's value per year for maintenance. On an $800,000 home, that's $8,000 annually, or about $667/month set aside.

When you add all of this up, the true monthly cost of homeownership is often $1,500–$2,000 more than the mortgage payment alone.

Step 5: Real-Life Budget Examples for Long Beach Buyers

Scenario A — The First-Time Buyer Household income: $150,000/year | Take-home: ~$9,500/month Comfortable housing budget (28%): ~$3,500/month all-in After taxes, insurance, and HOA: mortgage around $2,500–$2,700/month Realistic purchase price: $450,000–$520,000 In Long Beach, this gets you into a well-priced condo in areas like Downtown Long Beach or East Long Beach.

Scenario B — The Move-Up Buyer Household income: $220,000/year | Take-home: ~$13,500/month Comfortable housing budget (28%): ~$5,100/month all-in After taxes, insurance: mortgage around $3,800–$4,000/month Realistic purchase price: $650,000–$750,000 In Long Beach, this opens the door to single-family homes in Bixby Knolls, Alamitos Heights, or Los Altos.

Scenario C — The Luxury Buyer Household income: $350,000+/year Comfortable housing budget: $8,000–$10,000/month all-in Realistic purchase price: $1,200,000–$1,600,000 This range gets you into premium properties in Belmont Shore, Naples Island, Park Estates, or Belmont Heights.

Step 6: Set Your Comfortable Price Range — Not Just Your Maximum

Here's the advice I give every single buyer I work with: get pre-approved, then choose to shop below your maximum.

Your pre-approval number is a ceiling, not a target. Shopping below it gives you flexibility — room to negotiate, room to handle surprises, and room to actually enjoy your life after you move in. In a competitive market like Long Beach, it also gives you the ability to make strong offers without stretching to your absolute limit.

The buyers I've seen struggle most are the ones who bought at the very top of their approval. The buyers who thrive are the ones who bought comfortably within their means — and then watched their equity grow.

Ready to Figure Out Your Number?

Every buyer's situation is different. Income, savings, existing debt, lifestyle, family plans — they all factor in. That's why I spend real time with my buyers before we ever look at a single home. I want to make sure you're set up for long-term success, not just a successful close.

If you're thinking about buying in Long Beach, the South Bay, Los Angeles County, or Orange County, I'd love to have that conversation.

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Costanza Genoese Zerbi is Long Beach’s top-ranked real estate agent and a #1 RealTrends agent with over 575 homes sold and $485M+ in lifetime sales. With years of local market expertise, Costanza provides buyers and sellers with trusted guidance, neighborhood insights, and data-driven strategies to achieve the best results in Long Beach real estate.

(562) 221-4527 | costanza@costanzagz.com | costanzagz.com