Whether you are considering designing a new house, one of the most important factors to remember is the advantages and disadvantages of a one-story vs. a two-story home. Each configuration has advantages and drawbacks, much like any other house choice, and you’ll need to consider them in order to determine what is the best layout for your family.
There is no right or wrong choice when deciding between a single-story and a two-story house. Consider the specific requirements needed in your home as we go through the questions you need to address below before moving forward:
- How many people will be living in the household, and what is their average age?
- How long do you want to live in the home?
- What is the size of your land, and how does it look from the exterior?
- What are your surroundings?
- What is your budget?
Cost Comparison of a One-Story vs Two-Story Home
Cost per square foot is the most important factor to consider when deciding between a one-story house and a two-story house.
Surprisingly, a two-story house is a more affordable alternative. Two-story houses have a smaller footprint than a single-story home. As of 2025, the cost dynamics between one-story and two-story homes have shifted slightly due to rising labor costs and stricter energy codes.
While two-story homes still benefit from a smaller footprint (requiring less foundation and roofing), recent HVAC zoning standards and labor shortages in framing trades have driven up multi-level construction costs in many regions. On average, two-story homes may save 5–8% on land use, but one-story homes can outperform in long-term HVAC efficiency and accessibility upgrades.
In 2025, most new homes, regardless of layout, are expected to comply with California’s stricter energy standards. That often means zoned HVAC systems, smart thermostats, and ductless mini-splits are now common even in one-story designs. However, two-story homes still generally require more ducting and zoning complexity, which can increase installation and maintenance costs.
Pros and Cons of One Story vs Two Story Homes Maintenance
Although it’s appealing to imagine a house that takes care of itself, the reality is that maintenance must be completed at numerous stages of a home. On the whole, a one-story home is much simpler to maintain, and it is within easy reach. Trying to clean the gutters and getting to the roof, as well as some of the exterior walls, if you choose to do some maintenance on the building, is a lot better on a one-story home.
When it comes to deciding between a single-story and a two-story house, there is no correct or wrong answer; it’s simply a matter of making a list of the amenities that your family desires and weighing them against the pros and cons of each choice. Whatever your thoughts are, we are here to help you make this crucial decision and choose from the range of plans that we offer and provide.
Design Trends in 2025: Accessibility and Sustainability
One-story homes continue to lead in aging-in-place design, which is increasingly in demand as California’s population ages. Builders in 2025 are now integrating universal design principles, wider doorways, no-step entries, and smart lighting—features more easily implemented in single-story layouts.
Two-story homes are adapting too, with more first-floor primary suites and flex rooms to accommodate multigenerational households. Green building practices are also influencing layout decisions—smaller footprints (as seen in two-story designs) reduce impervious surface area and make it easier to incorporate native landscaping or ADUs (Accessory Dwelling Units) in California cities.
Conclusion: Which Home Layout is Right for You in 2025?
Choosing between a one-story and a two-story home in 2025 comes down to how your priorities align with modern living standards. If energy efficiency, accessibility, and long-term maintenance ease are top of mind, a well-designed one-story layout may be ideal. On the other hand, if maximizing space on a smaller lot and separating living zones is your goal, a two-story build still offers significant advantages, especially in urban areas with limited land.
Both designs can meet California’s latest energy codes and smart home standards when built with the right team. At Top Home Builders, our custom home experts will help you weigh the factors—cost, code compliance, space planning, and future-proofing—to build the home that fits your lifestyle for years to come.
Ready to explore personalized plans for your future home? Contact our New Home Specialists today to schedule a consultation.