Starter homes are disappearing. Can AI mortgages help?

The starter home isn't just disappearing from the housing market. It's being squeezed out of the mortgage system, too.

Traditional mortgage lending relies on commissions. That structure means a $100,000 loan earns far less than a $500,000 or $1 million loan.

This makes it harder to find smaller mortgage loans to finance low-priced starter homes in some markets.

But new AI-driven lending processes could help.

...in as little as 3 minutes — no credit impact

What is a starter home, and why is it vanishing?

A starter home is generally defined as a smaller, more affordable property, typically under 1,400 square feet, that's intended as a first step into homeownership rather than a long-term residence.

For decades, starter homes served as the primary on-ramp for first-time buyers building wealth through real estate.

That on-ramp has gotten harder to navigate. According to recent housing data, only about 9% of new homes built today are under 1,400 square feet, compared to roughly 40% of new builds in 1982. At the same time, recent industry data shows that new homes have gotten about 11% smaller over the past decade while costing about 74% more to build.

Some housing analysts call this phenomenon residential "shrinkflation."

By any name, its result is the same: smaller homes are no longer cheaper homes. And for buyers who do find one, the financing process presents its own set of obstacles.

Why the mortgage system isn't built for small loans

Here's a structural problem most housing discussions skip over: the traditional mortgage industry was never designed to serve small loans efficiently.

Lenders' profit depends on the size of the mortgage loan they underwrite. Because of this system, lenders would lose money on loans that aren't big enough to generate enough commission to cover their costs.

In some markets, a starter home may cost in the same neighborhood as a lender's minimum loan size, making it harder to buy.

How Better is using AI to cut the cost of a mortgage

This is where the math starts to change. Better.com's proprietary AI, Betsy, reduces the cost to process a loan by automating work that previously required multiple human touch points, including document collection, income verification, scenario analysis, and underwriting preparation.

Human loan officers are still available to answer questions and guide the process, but routine work can rely more on AI, cutting costs and opening up more options for buyers.

Better's AI technology, Betsy, evaluates 21,600 loan scenarios to find your best rate.¹

For qualified borrowers, Better's One Day Mortgage allows you to go from a locked rate to a Commitment Letter in a single day² — a speed previously reserved for buyers with large balances and established banking relationships.

What all this means if you're ready to buy your first home

AI-driven mortgages won't help if you can't find an affordable starter home. These steps can help achieve that goal:

1. Know your budget before you search

Use a mortgage calculator to understand what a realistic monthly payment looks like at current rates. Factor in property taxes, homeowners insurance, and mortgage insurance premiums.

2. Check and optimize your credit score

Your credit score directly affects your interest rate and which loan programs you're eligible for. Review our guide to how to qualify for a home loan as a first-time buyer to understand the key factors. Better's platform can also show specific steps to improve your profile before you apply.

3. Understand your loan options

Conventional loans require a minimum 620 credit score and as little as 3% down. FHA loans — insured by the Federal Housing Administration — allow a 3.5% down payment with a 580 credit score, making them accessible for buyers with limited savings or credit challenges. See our guide to FHA closing costs so there are no surprises at the closing table.

4. Get pre-approved with Better before you search

A mortgage pre-approval gives you a pre-approved budget to work from, making your offer stronger in a competitive market. Better's fully online process means you can get there without a branch visit or paper forms.

Frequently asked questions

Why won't lenders give me a mortgage on a cheaper house. Is there a minimum loan amount?

Lenders may not state a formal minimum loan amount, but the economics of traditional mortgage lending create an informal one. The same amount of work by a lender generates different amounts of profit based on the size of the loan. A loan of $150,000 or less may be too small for some lenders.

I make about $60,000 a year and I'm looking at homes under $200,000. Can I still get a mortgage?

Yes, a $60,000 income could support a mortgage in that range, but income isn't the only factor. Your debt-to-income ratio (DTI), credit score, and down payment are just as important.

Can AI actually help someone with a lower credit score qualify for a home loan?

Maybe, but only by helping determine steps for improving your financial profile. It's still up to the borrower to do the hard work of credit improvement.

Should I wait for mortgage rates to drop below 6% before trying to buy a starter home?

Waiting for rates to fall is a common instinct, but it carries real tradeoffs. Rates are unpredictable. Economists predicted only modest rate declines in 2026, and those haven't happened yet. Rates can also increase, raising financing costs for new homes.

What's the risk of buying a small, older home as a first-time buyer?

Starter homes, particularly older ones, often come with deferred maintenance, outdated systems, or repair needs that can add cost after closing. Budget for a thorough inspection before making an offer, and factor in potential repair costs when assessing affordability.

FHA loan vs conventional loan — which is better for buying a starter home?

FHA loans are often the better fit for first-time buyers since they allow a 3.5% down payment, even with a 580 credit score, and have more flexible DTI limits. The tradeoff is that FHA loans require mortgage insurance premium (MIP) for the life of the loan in most cases, which adds to your monthly cost.

The bottom line on starter homes

Compared to buyers in decades past, it's harder to find and finance starter homes.

But modern tools like AI-assisted loan processing can help make financing more available for starter homes.

If you're ready to take the next step toward homeownership, start with a free pre-approval. Better's fully online process takes minutes, won't affect your credit score, and gives you a real budget to work from.

...in as little as 3 minutes — no credit impact

¹ Betsy evaluates loan scenarios using currently available data across participating investors, product types, loan terms, and rate assumptions. The stated number of scenarios reflects a mathematical combination of these inputs (including multiple investors, product categories, loan terms, and rate variations) and does not represent a guarantee that all scenarios are available to every borrower or that any specific rate or loan will be offered. Actual loan options, rates, and terms depend on individual borrower qualifications, credit profile, property characteristics, loan amount, market conditions, and lender requirements at the time of application.

² Better Mortgage’s One Day Mortgage promotion offers qualified customers who provide certain required financial information/documentation to Better Mortgage within 4 hours of locking a rate on a mortgage loan the opportunity to receive an underwriting determination from Better Mortgage within 24 hours of their rate lock. The underwriting determination is subject to customary terms, including fraud and anti-money laundering checks, that take place pre-closing and which may trigger additional required documentation from the customer. Better Mortgage does not guarantee that initial underwriting approval will result in a final underwriting approval. See One Day Mortgage Terms and Conditions.