New Homes Save Money, Builders Face Lawsuits, AI Competes for Power

Florida may be rewriting the rules of homebuilding. New homes could save buyers thousands. And the AI boom? It may be competing with communities for power.

This week on This Week in Sustainable Building News, Ronan Mirza breaks down the forces quietly reshaping housing, affordability, resilience, and infrastructure.

From Florida’s proposed building code overhaul to a new study showing buyers of newly built homes may save $25,000 over ten years, the definition of housing value is changing fast. But so are the risks. Major builders are facing a growing wave of construction defect lawsuits, while labor shortages tied to immigration policy could put even more pressure on affordability and housing supply.

Meanwhile, the AI boom is creating a new kind of infrastructure tension. Reno just advanced a temporary moratorium on new data centers, and a new report suggests Lake Tahoe could lose much of its electricity supply as power shifts toward Northern Nevada’s exploding digital economy.

Also in this episode:

•  Why stronger building codes may become unavoidable in climate-vulnerable states like Florida.

• The hidden long-term savings behind new construction homes.
 

• What rising construction defect claims say about speed, labor, and quality in housing.
 

• How immigration policy may be affecting housing supply and construction jobs. 

• Why communities are pushing back on AI-driven data center growth.
 

• Could solar shift from a sustainability play to an energy security strategy?
 

• What consumers actually want from smart homes. 

• A surprisingly cool new insulation material made from fungi and construction waste

• Why buyers care more about how a home feels than fancy finishes.

• The Valuation Metric with Matthew Cooper

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About:

Green Builder Media www.greenbuildermedia.com is North America’s leading green building and sustainable living media company. Through our magazine, website, demonstration homes, and data services, we provide actionable information to consumers and builders about how to build and remodel sustainable homes. We focus on net-zero building, green products, energy efficiency, healthy homes, resilience, connected living, and building science.

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Transcript

SPEAKER_02 0:05

Hey everyone, welcome back. I'm Rona Mirza and this is your weekly look at what's changing in housing, sustainability, and the future of the built environment. This week, Florida may be rewriting the rules of home building, new homes might actually save buyers money, the AI boom is suddenly competing with communities for power, and yes, we'll be talking about mushroom insulation. Let's get into it. First up, Florida could be a preview of where housing is headed next. The state is working through major updates to its building code, set to take effect at the end of 2026, and the changes could ripple far beyond the sunshine state. We're talking stronger hurricane standards, tighter roofing requirements, tougher building envelopes, and potentially better energy performance. Homes may need to better withstand extreme wind events, flying debris, and increasingly volatile weather. There's also a surprising twist. Florida is looking at cutting permitting requirements for certain smaller home projects under $7,500, while simultaneously tightening resilience standards for larger systems. And honestly, it gets at one of the biggest tensions in housing right now. Can homes become stronger, healthier, and more resilient without becoming unaffordable? Which brings us to a new study that challenges one assumption about cost. Because if you think new homes are automatically too expensive, the math might be more complicated than that. According to new research from Realtor.com, buyers of newly built homes save an average of $25,000 over the first 10 years of ownership compared to buyers of a 20-year-old home. The savings mostly come from lower utility bills and avoiding expensive repairs. Things like HVAC systems, roofs, and water heaters that newer homes simply don't need to replace right away. And here's something interesting. In 16 metro areas, those long-term savings completely erase the upfront price premium of buying new. The biggest savings are actually showing up in New England, where stricter building codes and colder winters make energy efficiency matter more. Massachusetts buyers could save nearly $39,000 over a decade. Meanwhile, the South sees smaller savings because milder climates and weaker energy codes narrow the gap between old and new homes. It's a useful reminder that the cheapest house to buy isn't always the cheapest house to own. But, and this is an important but, building newer doesn't automatically mean building better, because according to a new report from the Wall Street Journal, some of America's biggest home builders are facing a growing wave of lawsuits over alleged construction defects. Homeowners are reporting issues ranging from sinking foundations and mold to roofing failures and moisture problems, with major builders like D.R. Horton, Lenar, and Poulty groups seeing rising legal liabilities. D.R. Horton's reserves for construction defect claims reportedly climbed to $1.1 billion, while Lenar's self-insurance reserves rose more than 20% last year. Builders say these cases represent only a tiny fraction of homes and often stem from subcontractor mistakes. Homeowners and attorneys argue labor shortages, rush timelines, and cost cutting are leading to quality problems. And that labor piece matters because construction is already under pressure. A new study from the National Bureau of Economic Research is raising tough questions about one of the biggest assumptions behind mass deportation policy. Will it actually create more construction jobs for Americans? Researchers found that in areas with deportation surges, both undocumented and American-born construction workers lost jobs, while wages stayed mostly flat. In fact, for every immigration arrest in construction, researchers found six American-born workers lost jobs compared to four undocumented workers. Why? Because companies often slow projects instead of raising wages, especially in an industry already dealing with labor shortages, high material costs, and financing challenges. And when fewer workers are available, projects take longer, which ultimately affects housing supply and affordability. But workers aren't the only thing communities are suddenly competing for. Increasingly, it's electricity. The AI boom is starting to run into resistance, and not for the reasons you might think. In a 6-1 vote, the Reno City Council advanced a temporary moratorium on new data center applications, buying time to figure out how to manage explosive growth tied to AI, cloud computing, and digital infrastructure. And Reno isn't alone. From Seattle to Indianapolis, cities are increasingly pumping the brakes on data centers over concerns about massive electricity demand, water use, infrastructure strain, and who ultimately pays for it. And according to a new report from Fortune, the effects may already be showing up nearby. Lake Tahoe could lose much of its electricity supply after 2027 as Nevada utility MV Energy shifts capacity toward booming data center growth in northern Nevada. Companies like Google, Apple, and Microsoft are rapidly expanding in the Reno Corridor, where data centers could add nearly 6,000 megawatts of new demand by 2033. For Tahoe's 49,000 residents and millions of annual visitors, the question is pretty simple. Who gets the power? Because suddenly the digital economy has a very physical footprint. And in a world where energy security feels less guaranteed, solar may be entering a whole new chapter. As oil prices spike and geopolitical tensions rise, one uncomfortable reality is back in focus. Dependence on fossil fuels makes homeowners vulnerable. At the exact moment energy resilience matters more than ever, federal support for residential solar has been scaling back. But homeowners with solar and battery storage, they're insulated from at least one piece of the uncertainty. They can power heat pumps, charge EVs, and keep the lights on without watching every utility headline. And speaking of homes getting smarter, new research from Parks Associates says the connected home market is finally moving beyond gadget obsession. Consumers increasingly want smart systems that actually solve problems. Things like energy savings, wellness, aging in place support, safety, and peace of mind. The catch? People still hate complicated setup and unreliable tech. So the real challenge may not be inventing smarter homes, it's making technology feel simple enough to disappear into the background. Okay, quick science detour, because this one is genuinely cool. Our editor's product pick of the week answers a pretty wild question. What if construction waste could literally grow into insulation? Researchers at the University of Bath found that a common fungus, the turkey tail mushroom, can break down hard-to-recycle wood waste and transform it into a low-carbon insulation material. The resulting material reportedly performs on par with conventional insulation while generating more than 10 times lower carbon emissions during production. So, yes, the future of insulation might actually grow itself. What makes people fall in love with a home? According to new cognition smart data, it's not the countertops, it's the feeling. In fact, 42% of buyers say how a home feels during a walkthrough is the number one factor when choosing between similar homes. But there's a catch. People can't relax into that emotional moment if they're stressed about hidden costs. Nearly two-thirds of buyers want clear long-term ownership costs up front, including energy and utility information before they buy. Which actually connects perfectly to this week's episode of the valuation metric. Sarah Gutterman sits down with Matthew Cooper, a PFG, to ask a deceptively simple question. What if we've been measuring home value all wrong? From indoor air quality and resilience to embodied carbon and long-term operating costs, there's more to a house than square footage. Cooper explains why price per square foot no longer tells the full story, and how new tools like ResNet 1550 could fundamentally change how homes are designed, financed, and valued. If you care about what actually makes a home valuable, definitely give that one a watch here on the Green Builder Media Network. Here's a clip. And one more thing before we go.com.

SPEAKER_00 8:55

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