7 Common First-Time Home Buyer Mistakes In San Antonio

Last updated: June 5, 2026

Buying your first home is exciting, but it is also one of the most complex financial transactions most people will ever go through. In San Antonio, where property taxes run higher than the national average, foundation issues can sneak up on you, and the housing market moves fast, even small mistakes can cost you thousands of dollars or weeks of delay.

The good news is that almost every one of these mistakes is completely avoidable. We have worked with dozens of first-time buyers across San Antonio, New Braunfels, and the surrounding areas, and we see the same patterns come up again and again. Here are the seven we want you to know about before you start your search.

1. Shopping for Homes Before Getting Pre-Approved

This is the number one mistake we see. Buyers fall in love with a home online, schedule a showing, and then realize they have no idea what they actually qualify for. A pre-approval letter from a lender tells you your real budget, and it tells sellers you are serious. Without it, you are wasting your time and your agent's time.

In San Antonio's market, homes in the $200,000–$350,000 range can move quickly, especially in neighborhoods like Converse, Live Oak, and Universal City near JBSA-Randolph. If you find the right house and do not have pre-approval ready, you will lose it to someone who does.

How to avoid it

Get pre-approved with the lender you choose before you look at a single listing. That lender handles qualification, loan terms, underwriting, and approval. Velvet Realty Group uses the lender-confirmed budget to guide the home search, property comparison, offer, inspection, and real estate timeline.

2. Underestimating Texas Property Taxes

Texas has no state income tax, but property taxes make up for it. In the San Antonio metro, effective property tax rates typically fall between 1.8% and 2.5% depending on the county and school district. On a $300,000 home, that could mean $5,400 to $7,500 per year, or $450 to $625 per month added to your mortgage payment.

First-time buyers often focus only on the monthly principal and interest payment and forget to factor in taxes and insurance. That $1,800-a-month mortgage payment can quickly become $2,300 or more once escrow is included. This catches people off guard and can strain a budget that was already tight.

How to avoid it

Ask the lender you choose for a full monthly payment estimate that includes principal, interest, taxes, insurance, and other loan-specific costs. After closing, Velvet Realty Group can point clients to official appraisal-district homestead-exemption instructions.

3. Draining Your Savings on the Down Payment

There is a myth that you need 20% down to buy a home. You do not. In Texas, many first-time buyers put down as little as 3%–5% on a conventional loan, 3.5% on an FHA loan, or $0 with a VA loan. Down payment assistance programs like the City of San Antonio's HIP 80 or TSAHC's "Home Sweet Texas" grant can cover part or all of your down payment.

But here is the mistake: even when the down payment is low, some buyers put every last dollar into it and leave nothing for closing costs, moving expenses, or emergency repairs. Closing costs in Texas typically run 2%–5% of the purchase price, and you will need funds for things like a home warranty, utility deposits, and the inevitable fix that pops up in the first few months.

How to avoid it

Budget for the full picture, including down payment, closing costs, moving costs, and reserves after closing. Ask the lender you choose to provide loan-specific estimates before relying on a number.

4. Skipping the Home Inspection

In a competitive market, some buyers waive the inspection to make their offer look stronger. We understand the impulse, but in San Antonio, this is a gamble you do not want to take. Our area has specific risks, expansive clay soil, polybutylene plumbing in older homes, HVAC systems that have been pushed hard through 100°+ summers, and active termite populations. An inspection that costs $350–$550 can reveal issues that would cost you $5,000–$25,000+ to fix after closing.

How to avoid it

Never waive the inspection. If you are in a competitive situation, we can help you structure an offer that stays attractive to the seller while still protecting you with an option period and inspection rights.

5. Making Big Purchases During the Buying Process

Once you are pre-approved, your financial picture is essentially frozen until closing. Buying a new car, opening a new credit card, financing furniture, or making any large purchase can change your debt-to-income ratio and jeopardize your loan approval. We have seen deals nearly fall apart because a buyer bought a new truck the week before closing.

Lenders will re-check your credit and employment before final approval. Any new debt can push your DTI ratio over the limit and force you to re-qualify or, worst case, lose the home.

How to avoid it

Treat your finances like glass from pre-approval through closing. No new credit, no large purchases, no co-signing for anyone. If you need to buy something, ask your loan officer first.

6. Choosing an Agent Based on Who You Know, Not Who Knows the Market

Your friend who just got their real estate license may be great, but buying your first home is not the time to learn on the job. You need an agent who knows San Antonio neighborhoods, understands the Texas contract inside and out, has relationships with local inspectors and lenders, and can negotiate effectively when things get complicated.

First-time buyers need more guidance, not less. You need someone who is going to explain every step, answer your questions patiently, and catch the details that a less experienced agent might miss. This is your largest financial purchase. Treat the decision about who represents you accordingly.

How to avoid it

Interview your agent. Ask how many first-time buyers they have worked with, what their knowledge of the local market looks like, and how they communicate throughout the process. We specialize in first-time buyers because we remember what it felt like to go through this for the first time.

7. Not Asking Enough Questions

This one is simple but important. First-time buyers sometimes feel embarrassed to ask questions, thinking they should already know the answer. The truth is, there are no dumb questions when you are making a decision this big. What is earnest money? What is an option period? What does escrow mean? Why is my property tax estimate different from what Zillow showed me? These are all great questions, and you deserve clear, honest answers every time.

If your agent makes you feel rushed or brushes off your questions, that is a sign you are working with the wrong person. We built our practice around the belief that informed buyers make better decisions, and that starts with creating a space where every question is welcome.

How to avoid it

Write down every question as it comes up. Send us a text, an email, or a call, we would rather hear from you ten times than have you make a decision based on a guess.

The Bottom Line For Avoid First-Time Buyer Mistakes In San Antonio

Buying your first home in San Antonio, New Braunfels, or the surrounding Hill Country does not have to be overwhelming. Velvet Realty Group explains the real estate process, and the lender a buyer chooses handles qualification, loan terms, underwriting, and approval. With the buyer's permission, the real estate agent, lender, title company, inspector, and other professionals can coordinate the deadlines each role owns.

We are Jonathan and Naomi Morris, a husband-and-wife real estate team with Velvet Realty Group. We help first-time buyers understand local areas, properties, offers, inspections, and the Texas real estate contract. Jonathan's mortgage loan originator work is conducted separately through REV Mortgage, and buyers may choose any lender.

If you are thinking about buying your first home, here are two places to start:

Talk to Jonathan About Pre-Approval →

Ready to buy your first home without the headaches?

We specialize in guiding first-time buyers through every step of the process. Real estate, without the performance.

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