New Build vs. Existing Home: What First-Time Buyers Must Know

As a first-time buyer, the biggest decision you will face is whether to buy a new construction home or an existing home that is already built in a mature neighborhood. I have been doing this for over 23 years in loan origination and 18 years in real estate sales, and I can tell you this: neither choice is inherently better -- the right choice depends on your priorities, your timeline, and how well you understand what each option really offers. In this article, I break down the five major points of consideration that will save you money, avoid headaches, and give you confidence in your decision.

Prefer to watch? Patrick walks through all five considerations in this video.

Why New Builds Are Gaining Popularity

The real estate market across Texas and much of the country is experiencing a significant inventory shortage. We are roughly a million homes below what normal inventory levels should be. A big reason for this is that many homeowners locked in historically low interest rates during 2020 and 2021, and they are reluctant to sell and take on a new mortgage at today's rates. That inventory shortage is pushing a lot of first-time buyers toward new construction, especially in rapidly growing areas like San Antonio, Bulverde, and the Texas Hill Country.

In many communities, new builds are almost the only game in town. But that does not mean every new build is the right choice for you. Let me walk you through the five major considerations that will help you decide.

Advantages of New Construction

Price Point and Availability

In many mature neighborhoods, the available inventory may not fit your budget. Builders are constructing homes on the outskirts of communities at price points that first-time buyers can afford. If you are priced out of established neighborhoods in San Antonio or the Hill Country, a new build community may be your entry point into homeownership.

Customization at the Design Center

This is the biggest attraction for many first-time buyers. In a new build, you get to go to the builder's design center and choose your color schemes, flooring type, cabinetry, and countertops. The selections are typically coordinated so everything blends together nicely. By the time you move in, everything is exactly the way you want it.

That kind of customization is not an option with an existing home. You might walk into a perfectly nice house with funky paint colors or outdated cabinets that you will want to change immediately. I want to point out a workaround, though. You can use a renovation loan on an existing home -- you add, say, $25,000 to your purchase price that goes into a side account to change out the colors, paint the walls, replace the carpet, and so forth. It is not the same as picking everything from scratch, but it gets you closer to a turnkey home.

Builder Warranties

A new build typically comes with a builder warranty. Coverage varies by builder, but generally you can expect the foundation to be covered for 5 to 10 years, electrical and HVAC for 2 to 3 years, and other systems for roughly one year. That gives you peace of mind knowing that major components are protected if something fails.

On an existing home, you can buy a home warranty that covers the major systems. These typically cost $500 to $600, depending on the level of coverage. But here is the honest truth about both: when you file a claim, the warranty provider will try to limit its payout. That is just how the system works. You need to know the exclusions in your contract and hold them accountable. In either situation, having an experienced agent who knows how to navigate warranty claims makes a real difference.

Builder Incentives

Builders often advertise financial incentives to attract buyers. These can include rate buydowns (say, 4.99% instead of market rates), closing cost coverage (like $10,000 toward your closing costs), or a combination of both. These packages are designed to make the monthly payment more attractive and lower your cash-to-close.

But here is what I want you to understand: the entire incentive package is a negotiation, and the package they show you first is their baseline, not their best offer. It is common for builders to extend better terms when a knowledgeable agent pushes back. Keep in mind that incentives may also be tied to using the builder's preferred lender -- something you should evaluate carefully.

Existing homes have their own version of incentives: seller concessions. On every deal I do as a loan officer or agent, I negotiate seller concessions. On a $300,000 house, I routinely secure $9,000 to $10,000 in seller concessions to help pay for closing costs. Both options can reduce your out-of-pocket costs, but the mechanics are different.

5 Things You MUST Know Before Buying a New Build

I want to share something a little different here. I recorded a separate video on the specific things every buyer should know before walking into a builder's sales office, and the feedback was overwhelming. Buyers kept telling me, "I wish I had known this before I started." So I am putting these five points right here, in writing, so you have them before you make a move.

Things You MUST Know Before Buying New Construction

Builder Contracts Are Not Standard

Most states, including Texas, do not require builders to use the standard real estate contract form that agents use for existing home sales. Builders typically use their own custom purchase agreement, and that contract is written entirely in their favor. The language can include clauses that put your earnest money at risk from day one, with no option period to back out or negotiate repair issues.

Registration: You Must Have Your Agent Before You Walk In

If you walk into a builder's sales office without an agent already registered with the builder, you are representing yourself. And even though the sales staff will be wonderfully nice and helpful, their job is to represent the builder, not you. Once you walk through that door unrepresented, most builders will not allow you to bring in an agent later for that community.

Before you visit any new construction sales office, contact me or another experienced agent first. We register with the builder on your behalf, it costs you nothing, and it puts a trained negotiator on your side from the start. The builder pays our commission from their marketing budget, not from your pocket.

Timeline Delays Can Cost You

Builders give you an estimated completion date, but those dates slip frequently. You might walk into the showroom in September, fall in love with the model home, put down a deposit, and be told to expect a March 1 move-in. You time your lease to end in February, and then in January the builder says, "We are behind schedule -- it will be May now." Now you are stuck paying month-to-month rent at a higher rate or scrambling to find short-term housing.

I advise my clients to build in a buffer. Do not let your lease end within a month of the builder's estimated completion date. Give yourself two to three months of flexibility so a delay does not become a financial emergency.

Special Assessments and MUD Taxes

Many new communities in Texas are built within Municipal Utility Districts (MUDs) or other special assessment districts. These are additional property taxes on top of the normal county, city, and school district taxes, used to pay for the infrastructure of the new community. A special assessment can add $200 to $500 or even more to your monthly payment.

Builders rarely mention this when they are showing you the model home and talking about their $10,000 incentive package and low interest rate. But that special assessment is real, and it directly impacts your monthly payment and your affordability. As a dual-licensed professional, I always run the numbers with these additional costs included, so you know exactly what your true monthly payment will be before you sign anything.

Lot Size, Garage, and Landscaping Realities

Lot sizes in new build communities have been shrinking. You can almost pass the sugar between your neighbor's kitchen window and yours. Builders also squeeze square footage by shrinking the garage -- a "two-car garage" in a new build may barely fit two cars, which is why so many people park on the driveway or the curb. Over the last 10 to 20 years, garage sizes have noticeably decreased.

Landscaping is another area where new builds fall short. You might get a couple of small trees out front and a concrete slab in the back that the builder calls a patio. The backyard is often bare dirt, and grass is an upgrade. Compare that to an existing home where you have mature trees, established landscaping, and often a deck or covered patio. Those features are worth tens of thousands of dollars.

Why You Need an Agent Who Knows Both Sides

Here is where my dual license changes the game for my clients. As both a loan officer and a real estate agent, I understand the financing side and the real estate side of a new build transaction. When the builder offers you a 4.99% rate buydown with $10,000 in closing cost credits, I can look at the full picture and tell you whether that is genuinely a good deal or whether we can negotiate something better.

I also know the games. The builder's contract is written in their favor. The warranty exclusions are real. The special assessments are hidden. The timeline delays are common. Having someone who has negotiated dozens of new build transactions means you are not learning these lessons the hard way with your own money on the line.

New Build vs. Existing: Quick Comparison

Here is a side-by-side look at the key factors to help you compare.

Real Numbers: $325K New Build vs. $300K Existing

Let me show you a real example. Assume an $80,000 household income (about $6,667 per month gross). With a builder incentive bringing the rate to 5% on a new build at $325,000, your monthly payment is roughly $2,520. With a conventional loan at 6% on a $300,000 existing home, your monthly payment is roughly the same $2,520.

The monthly payment is similar, but the new build gives you a higher-priced home and a lower rate (if you negotiate the incentives properly), while the existing home costs less upfront and may come with more land and established features. Your priorities will determine which trade-off works best for you.

Frequently Asked Questions

Patrick Kevin Fagan

Loan Officer and Realtor · AXEN Realty LLC · San Antonio and Texas Hill Country

Licensed Sales Agent · 454749 · TX · NMLS 877741

210-317-6514 | pfagan@nexalending.com | About Patrick

Sincerely, Patrick Kevin Fagan