In Part 1, we wrote about the buyers upsizing for lifestyle reasons — a Las Vegas home away from home for a family that likes having room to gather. But for a lot of the families we work with, more space isn’t about a vacation home at all. It’s about a parent who needs to be nearby, or an adult child who hasn’t quite launched yet and is expected to pull their weight under the same roof while they get there. Both situations are becoming more common, both are reshaping what buyers ask for in a floor plan, and Nevada just made it meaningfully easier to build for either one.
A Trend Four Decades in the Making
This isn’t a fad. Pew Research Center found that 59.7 million Americans — 18% of the population — lived in a multigenerational household in 2021, roughly four times the number in 1971, when the share was 7%. It’s most common among young adults: 31% of 25- to 29-year-olds live in a multigenerational household, a share that drops steadily with age. And it isn’t just an emotional or cultural choice — it’s a financial cushion. Pew found poverty rates are meaningfully lower in multigenerational households (10%) than in other arrangements (12%), and the gap is much larger for two groups worth noting: unemployed adults (11% vs. 19%) and disabled workers (16% vs. 27%).
When It’s About a Parent Who Needs to Be Close
One driver behind the multigenerational surge is straightforward caregiving. Pew’s research found that about a third of adults living multigenerationally point to caregiving as a major reason for the arrangement — split between caring for an adult family member (25%) and childcare (12%) — and that share is even higher in lower-income households. Whether it’s a parent who can no longer safely live alone, or simply a family that wants a parent close enough to see every week instead of once or twice a year, the floor plan has to do real work: a first-floor bedroom and bathroom instead of a staircase, a no-step entry, wider doorways, and enough separation that everyone still gets privacy. That’s exactly the shift builders are responding to — first-floor primary suites climbed from 58.6% of new floor plans in 2019 to 68.4% today, and main-floor bed-and-bath layouts went from 39.7% to 54.9% over the same stretch, according to the Houseplans.com data cited in a recent Builder analysis.
When It’s About Grown Kids Who Haven’t Launched Yet
The other end of this is adult children living at home, and the data says this is overwhelmingly a financial story, not a laziness story. Pew Research found financial issues are the top reason households give for living multigenerationally — cited by half of lower-income adults and still by roughly a quarter of upper-income adults — with 28% saying it’s simply the arrangement they’ve always had. The experience is mostly positive (57% describe it as positive overall) but not without friction: 23% report feeling stressed “all or most of the time,” even as 54% call it rewarding just as often. The honest takeaway is that it works best when it’s structured, not just tolerated — shared expenses, a real division of chores, and, where the home allows it, enough physical separation that a 24-year-old contributing to the household still gets to live like an adult rather than a guest in their childhood bedroom.
As Generations United executive director Kristen Kiefer puts it, “the most successful homes balance togetherness with independence, allowing family members to remain connected while maintaining privacy and autonomy.” That balance is really the whole design problem, whichever direction the multigenerational need is coming from.
Nevada Just Made This Easier to Build For: The New Casita Law
This is where the timing works in Nevada buyers’ favor. Assembly Bill 396, Nevada’s new statewide casita law, removes two of the biggest barriers that used to make accessory dwelling units — known locally as casitas, in-law suites, or granny flats — hard to build: it eliminates restrictions on separate kitchens and reduces the lot-size requirements some cities had imposed. Assemblywoman Shea Backus, the bill’s author, framed it plainly around Nevada’s affordability crisis and a housing shortage straining families, young professionals, and retirees alike. Cities and counties across the state had to update their zoning codes to comply by July 1, 2026. Clark County’s own code changes took effect March 5, 2026, removing lot-size limitations outright (special permits still apply to lots under 4,000 square feet or in mobile and tiny-home parks). The City of Las Vegas has clarified its own setback, size, and lot rules, limiting properties to one residential ADU each, and Henderson — which had already made sweeping ADU changes back in 2022 — passed minor updates in fall 2025 to bring itself fully into compliance.
In plain terms, a casita is close to a purpose-built answer for both scenarios in this post. A parent gets a private, single-level space with their own kitchen and bathroom, steps away but not underfoot. A grown child gets real independence — their own door, their own space — while still living on the family property and contributing to it. And with the state-level barriers coming down across Clark County, Las Vegas, Henderson, and North Las Vegas, it’s a genuinely more available option than it was even a year or two ago.
Which Floor Plan Fits Which Situation
Communities we work in regularly — Desert Mesa at Aries, Lake Las Vegas, and Union Village — are already building toward this. New-construction data shows plans built around multigenerational living climbing from 4% of sales in 2019 to 12.2% today, and guest suites nearly tripling from 3.9% to 11%. If the need is caregiving for a parent, the priority is usually a first-floor primary suite or connected suite with an accessible bathroom and no steps between the garage, kitchen, and bedroom. If the need is a grown child contributing to the household, a detached or semi-detached casita with its own entrance tends to hold up better long-term than a converted bonus room, simply because it keeps the “togetherness with independence” balance Kiefer describes intact once life gets busy and patience runs thinner.
What to Know Before You Tour a Model Home
If any of this has you looking at new construction, one rule matters more than any floor plan detail: you need to bring your Premier Homes Real Estate agent with you on your very first visit to a builder’s sales office or model home tour. New home builders generally will not add a buyer’s agent after that first visit — representation has to be registered at the door, on day one, or you lose the ability to have your own agent looking out for your interests through the contract, upgrades, and incentives. Decide on your agent before you schedule that first tour, not after you’ve already walked the model.
Whether you’re weighing a first-floor suite for an aging parent or a casita for a grown child who’s contributing to the household while they get on their feet, this is the same guidance we walk every Premier Homes client through — not a one-time blog observation, but how we actually help families plan for it, whether you’re actively house-hunting this month or just starting to think it through. Reach out to Premier Homes Real Estate any time to talk through which floor plans and communities fit your situation, and if a casita will ever need to be managed or rented out down the road, Premier Homes Property Management can help with that as well. We’re here for families across Las Vegas and Henderson, whenever you’re ready.
