Why One Family Built an ADU Instead of Their Daughter Renting or Buying a Fixer-Upper

By Buz Artiano, BuildX | August 2026

Watch: Why Renting Wasn't an Option Anymore

If you have an adult child who has been renting for years, you already know that the math just doesn't work out in their favor. Rent just keeps going up and they have nothing to show for it. Saving for a down payment feels impossible, especially when you're paying high rental prices. And the handful of homes that you could afford need so much work that it puts the budget way over what you can swing. Prices look affordable on the listing, but when you add a new roof or septic work, it gets really expensive as soon as you walk through the door. This is where families really get stuck and feel like they don't have any good options that will get their kid a stable home.

My name is Buz Artiano, founder of BuildX. We've built dozens of ADUs all over Massachusetts, mostly on the South Shore and in Plymouth County. We actually built Plymouth's first ADU. We handle the entire process in-house, so we do the design, permitting, and construction and we work with local zoning boards, lot coverage and setback constraints, and septic evaluations. That way you're not trying to find and manage an architect, a permit expediter, and three separate contractors on your own. After enough of these builds, we've learned exactly when an ADU is better than the alternatives for a family trying to get an adult child a place to live, and also when it's not.

Kevin and Terry Creighton are BuildX clients. We're building their ADU in Plymouth for their daughter and her spouse because they've been renting for a couple years and they can't find a single home for sale that's worth buying. This is their story, in their words, about why they stopped looking for a house and started building one instead.

Of course we want to share stories from families who had a good experience with us, but we are sharing the Creightons' story because they did their homework first. They interviewed several traditional builders, looked into modular options, and only found us after doing a deep search of their own. What they have to say will be more useful to you than anything we could say about ourselves.

Why Did the Creightons Choose an ADU Over Renting or Buying?

Terry Creighton explained her reasoning to us. Her daughter and spouse had been looking for a home to buy after renting for a couple of years, but there was absolutely nothing in their price range on the market. Terry said "It's expensive to rent, but every single home in their budget is in need of a new roof, a new septic, and new windows just to make it habitable. So there really was nothing in the inventory that was suitable."

That pretty much sums it all up in just two sentences. Renting kept getting more expensive and their money just goes into someone else's pocket. Buying meant they would be stuck with a house that needed its three most expensive things replaced before anyone could live in it. Once the Creightons saw that both of those options were a dead end, an ADU on their own property became the obvious solution. They already owned the land, and they could put a brand-new home on it for their daughter and her spouse, and not worry about buying a house that was a huge risk and could cost tens of thousands to fix.

A Brand-New ADU Skips the Fixer-Upper's Biggest Surprises

This is the part most families underestimate until they are standing in the driveway of a "cheap" house. The listing looks affordable, then when the inspection is done it says that the roof has to be replaced, the septic system is failing, and new windows are a must. And unfortunately those are the three items that cost the most and blindside people the most.

Here is what we see from the building side. A roof, a septic system, and a set of windows are the three things that suffer the most when the owners defer the maintenance on them. A failing septic system alone can get extremely expensive once you account for a Board of Health design and a new leach field. Add a full roof and new windows on top of that, and now you start to see why the listing seemed affordable at first glance. You didn't buy a cheap house, you bought three huge construction projects. That is exactly the wall that the Creightons' daughter kept hitting, and it's why so many affordable listings sit there needing work because no first time home buyer wants to take that on.

An ADU changes the whole equation. Everything is brand new and built to current code, so there is no old infrastructure to inherit and no systems that will be failing in a year or two. When we build a new ADU, the roof, the systems, and the windows are all brand new at the same time and under warranty. You're not going to have to deal with all these separate emergencies once you move in.

Is an ADU Really Smarter Than a Starter Home for Your Adult Child?

If you have an adult child who's been renting for years, searching for an affordable home to buy and finding out that they all need a new roof, a new septic, and new windows, the Creightons were in the same position. So we want to answer the objection head-on: is building an ADU actually the smarter move, or does it just feel that way because there are seemingly no other options.

For a family in the Creightons' situation, the ADU wins every time on the things that matter. A starter home that needs all its major systems replaced is not a starter home you want. It's a renovation project you finance at full price and then dump more money into to fix. An ADU is new construction on land you already own, which means no separate land cost on top of the build, no failing systems, and a home your son or daughter can actually live in. They get their own front door and their own space. You keep them close, but still have privacy. And you put money into a permanent asset on your own property instead of into a landlord's pocket.

An ADU isn't automatically cheaper than every house on the market, but we'll get to that in a minute. But when the only "affordable" homes are the ones nobody can move into, an ADU ends up being the only option left to get a decent livable home.

How Did the Creightons Know BuildX Was the Right Builder?

The Creightons didn't find us first, and they didn't just hire us immediately out of faith either. They started the traditional way, interviewing builders, but they were unimpressed. Terry said "We first went the traditional route, interviewing some builders, but we were not pleased with their communicativeness, let's just say." They looked into modular options next, but they really didn't like those either. After all that, Terry ran a deep online search for ADUs, and the way she found us says something about our track record: "The first time I saw BuildX was when I researched Plymouth's first ADU, because they actually built Plymouth's first ADU."

From there they did what any careful family should do, they came and checked us out. Kevin said "They had a model right down the street, an open house that we went and looked at, and right from the start, the people that work for BuildX were great. They were very helpful, very knowledgeable, no hard sell."

That last part, no hard sell, is one of the things we pride ourselves on. A family deciding how to house their own child doesn't need a bunch of pressure to sign a contract. They need honest answers and a builder who has actually done this before. The Creightons compared us against the alternatives and chose us on their own terms, which is the only way we want to earn the work, we don't believe in high pressure sales techniques.

When Does an ADU for Your Adult Child Not Make Sense?

We build ADUs, but that doesn't mean we think every family should build one. If we steered everyone in that direction it would be wrong.

An ADU is the wrong move in a few situations. If your lot can't fit a second home within its setback and lot coverage limits, or your septic system can't support the added bedrooms, your property might not work no matter how much you want it to. If your family dynamic isn't ideal for everyone living on the same property, even the best design doesn't fix that, and it's better to know that before you build. And if your adult child needs to be in a specific school district or town nowhere near your property, keeping them close on your land will just add more problems.

The Creightons' situation was a strong fit because everything just lined up the right way. They had the land, the property was able to support the ADU, and keeping their daughter and her spouse close was exactly what everyone wanted. Your situation might line up the same way, or it might not. You're only going to know by evaluating your specific property, which is where the real conversation starts.

Ready to See Whether an ADU Fits Your Family's Situation?

The Creightons stopped looking at houses that needed to be rebuilt and started building the home their daughter and her spouse could actually live in. If your adult child is stuck between rent that never ends and homes that aren't worth buying, then an ADU could be the perfect solution. It comes down to your land and your family, and there's one way to find out.