Custom ADU Design Trends for 2026

ADU design has moved a long way from the backyard studio with a kitchenette. Homeowners are now building units meant for a parent, an adult child, or a long-term tenant, and that shift shows up in nearly every design decision being made this year. Custom ADU Design Trends The trends worth paying attention to are […]
Selling a Home with an ADU: What Buyers Need to Know

A home with an ADU sells into a different market than the house next door. It attracts investors, multigenerational families, and buyers who can now count the rental income toward their loan qualification. It also invites a level of scrutiny that standard listings never face. Buyers and their lenders will ask questions about permits, income, […]
Should I Hire a Separate ADU Designer or Use My Builder’s?

For most California homeowners, using the builder’s in-house designer is the faster and cheaper route. Hiring an independent designer makes sense when the project has unusual architectural demands or you want a second set of eyes on the numbers before construction pricing is locked. The real question is not which produces prettier drawings. It is […]
Is an ADU a Good Investment in 2026?

For most California homeowners, yes, but the answer depends far more on your specific property than on any national average. An ADU typically returns 6 to 12 percent annually through rental income while adding meaningful resale value, which puts it ahead of most passive investments available to a homeowner. The honest version of this answer […]
ADU Foundation and Structural Considerations

The foundation is the single most expensive thing to get wrong on an ADU. It is poured early, buried permanently, and every framing, plumbing, and electrical decision that follows depends on it being right. Most homeowners spend months choosing finishes and about five minutes thinking about what sits underneath. That ratio should be reversed, because […]
Can I Install Solar Panels on My ADU?

Yes, you can install solar panels on an ADU in California. What surprises most homeowners is that in many cases you have to. Under California’s Energy Code, a newly built detached ADU counts as new residential construction, which triggers the solar photovoltaic requirement. At Nestadu, solar is one of the first things we settle during […]
What Are the Best Energy-Efficient Features for ADUs?

The four features that make the biggest difference in an ADU are a tightly sealed building envelope, a heat pump for heating and cooling, a heat pump water heater, and solar paired with battery storage. Everything else is a smaller adjustment on top of those. California’s Title 24 energy code already requires several of these, […]
How Difficult Is It to Get an ADU Permit in California?

Getting an ADU permit in California is moderately difficult, but it is far less painful than it was five years ago. Most homeowners spend 3 to 8 months on permitting and pay between $5,000 and $15,000 in city fees. The approval itself is rarely the sticking point. State law now requires cities to review compliant […]
Legal and Financial Aspects of Owning an ADU in California

Owning an accessory dwelling unit in California means following state ADU law, pulling a ministerial building permit, accepting a partial tax assessment on the new unit only, and meeting local rental rules. Financing usually comes from home equity, a cash-out refinance, or a renovation loan. Legal and Financial Aspects of Owning an ADU Most homeowners […]
Can I Sell My ADU Separately from My House in California?

Yes, you can sell an ADU separately from your main house in California, but only if your city or county has passed its own ordinance allowing it. State law opened the door in 2024, and most local governments still have not walked through it. That one detail is where nearly every online answer goes wrong. […]