This is one of the most common questions we hear—and we’re always happy to answer it as best we can. But for most custom home builds, it’s not a simple figure. Cost per square foot varies significantly based on conditioned square footage, terrain, location, selections, and material choices.
Cost per square foot is a helpful starting point, but it’s not a complete way to understand the cost of a home. That’s because it doesn’t account for factors like site conditions, layout, amenities, or finishes. Depending on those details, two homes with the same square footage can end up with very different budgets.
Below, we’re answering some common questions about cost per square foot—and sharing suggestions for understanding the costs for your home. 👇🏼
A: Price per square foot is based on the conditioned square footage of the house. When you hear about a 1,500-square-foot home, that number typically refers to the heated and cooled living space.
If you add a two-car garage, the home is still considered 1,500 square feet, but you’ve added costs for concrete, framing, drywall, electrical, roofing, and more. Those additions increase the overall project cost, which can raise the price per square foot—even though the living space hasn’t changed.
A: Absolutely.
The terrain of the property matters. If a lot slopes significantly (as it often does in Butte County), it can affect the foundation and the cost to build it. Septic systems, wells, and other site-specific requirements also factor into the overall cost.
These details don’t show up in a simple square-foot calculation, but they have a real impact on the final number.
A: Custom amenities and upgrades increase cost per square foot because they require premium materials, specialized labor, and additional construction time.
Some homeowners want a covered back patio for barbecuing and relaxing. Others prioritize features like custom cabinetry, high-end kitchen finishes, a built-in pantry, or a marble shower. Each of these selections can vary widely in price.
A: Trilogy uses our True Quote process to provide firm, detailed pricing based on current material costs, labor rates, and your specific project requirements.
Material and labor costs have increased over the years—not just on the Ridge but across California and the entire country. When people ask us about the cost per square foot, we want to be honest with them from the start.
Our True Quote process gives you a firm number you can count on with a level of detail not all contractors provide. When the job is complete, you can look back and feel good about the fairness and transparency throughout the entire process.
A: “Can you build the home I want within this budget?”
Sharing your full budget and your wishlist upfront allows your builder to guide you toward realistic options and help prevent surprises down the road. If staying within budget matters to you, make sure your contractor has a plan to manage costs from start to finish.
A: The most important factor is choosing a contractor you trust for a long-term partnership. They should also have proven relationships with subcontractors and communication styles that match your preferences
Building a home is a relationship, and it doesn’t end the day you move in. Especially early on, you may have questions or need guidance. Choose a licensed contractor who communicates clearly throughout the entire process and treats your project with care.
A: Start with: “Are you licensed?” That’s rule number 1.
Then, move onto: “What’s your relationship like with your subcontractors and vendors?” A good contractor works with stable, reliable partners they trust—not just whoever is available.
Then ask: “How do you communicate?” Communication keeps the entire project moving and on-track, so it’s important your preferences align. Some people prefer phone calls, others prefer email or in-person job-site visits. Knowing their style upfront allows you to make an informed decision and helps everything run more smoothly.
A: Discuss realistic scheduling with your builder upfront, as construction loan interest rates are typically higher than traditional mortgages, and delays increase costs.
Talk about scheduling early in the process. It’s important to understand how the build timeline affects your financing.
Because it doesn’t tell the full story. Cost per square foot doesn’t account for site conditions, garages, porches, finishes, or amenities, which can make the number misleading.
No. Builders calculate it differently, and what’s included can vary widely. That’s why comparing builders by this number alone can be confusing.
Yes. Layout, lot conditions, materials, and selections can all affect cost, even when square footage is the same.
Clear upfront planning, detailed pricing, and consistent communication help reduce surprises throughout the build.
An ADU (Accessory Dwelling Unit) is a smaller, independent living space built on the same property as a main home. It has its own entrance, kitchen, bathroom, and sleeping area, making it a fully separate residence, not just an extra room.
In Butte County, ADUs have become a popular way for homeowners to add rental income, house family members, or increase property value, all while staying on their existing lot.
If you’ve ever wondered what an ADU is—or how one might fit on your property—you’re not alone. Accessory Dwelling Units (ADUs) are becoming a popular way for homeowners in Butte County to create flexible living spaces, add property value, and bring family closer together.
An Accessory Dwelling Unit (ADU) is a smaller, independent living space built on the same lot as a primary home. Think of it as a guest house, in-law suite, rental, or even a home office. An ADU has its own entrance, kitchen, bathroom, and sleeping area, making it a fully functional residence.
In California, ADUs are supported by state law to help provide more housing options while keeping families and communities connected. Across Butte County, more homeowners are exploring ADUs as part of long-term property planning and multi-generational living.
| Type | Description | Common Use |
| Detached ADU | Separate from the main house | Guest home, rental unit, office |
| Attached ADU | Connected addition with shared wall | Extended family or private suite |
| Conversion | Converts existing garage or shed into living space | Rental or studio |
| Interior Conversion (Junior ADU) | Uses space inside main home | Office, studio, or caregiver suite |
Trilogy Tip: Before we start building, we’ll help navigate local zoning and permit requirements.
Beyond added space, ADUs bring a world of benefits:
When you work with Trilogy, you’ll also get the clarity and accountability of our True Quote Process—so your ADU project stays on time, on budget, and stress-free.
Building an ADU isn’t a one-size-fits-all project. You’ll want to think about:
If you’re thinking about building an ADU in Butte County, there’s good news: local ordinances now make it easier than ever to add more living space to your property. Homeowners can build up to three total units on a single lot, with rear yard setbacks as small as four feet.
For residents of Paradise, the Town even provides free ADU building plans and an Informational Guidebook to help you get started.
| ADU Type | Maximum Size | Additional Details |
| Detached ADU | • 850 sq ft max for 1 bedroom • 1,000 sq ft max for 2 bedrooms | • Setbacks ≥ 4 ft from rear and side yards • Subject to septic capacity and local zoning limits |
| Attached ADU | • Up to 50% of the main home’s net floor area • 850 sq ft max for 1 bedroom • 1,000 sq ft max for 2 bedrooms | • Must be directly connected to the primary residence • Subject to ADU zoning and septic requirements |
Trilogy Tip: Before designing your ADU, confirm current regulations with the Town of Paradise Planning Department or Butte County Building Division. Our Trilogy team can help review your lot size, septic capacity, and local zoning to ensure your project meets all requirements, saving time and stress along the way.
What is an ADU?
An ADU (Accessory Dwelling Unit) is a small, independent living space, like a guest house, in-law suite, or rental unit, built on the same lot as a main home. It has its own entrance, kitchen, and bathroom.
What does ADU stand for?
ADU stands for Accessory Dwelling Unit.
What is the difference between an ADU and a JADU?
An ADU is a fully independent unit with its own kitchen and bathroom. A JADU (Junior ADU) is smaller, built within the existing footprint of the main home, and may share a bathroom with the primary residence.
Are ADUs allowed in Butte County?
Yes. Most areas within Butte County, including Paradise, allow ADUs under California's state housing laws. Always check your specific property's zoning before starting design.
How big can an ADU be in Butte County?
Detached ADUs can be up to 850 square feet for one bedroom or 1,000 square feet for two bedrooms. Attached ADUs follow the same size limits, or up to 50% of the main home's floor area, whichever is smaller.
How long does it take to build an ADU?
Timeline depends on permits, materials, and whether it's attached or detached. Trilogy's True Quote Process helps set realistic expectations from the start.
Can I rent out my ADU?
In many cases, yes. Local laws allow long-term rentals, not short-term vacation stays. We'll help you verify what applies to your property.
What changed and why:
Whether you’re planning for family, flexibility, or future investment, building an ADU is a smart way to make your property work harder for you—and still feel like home. Send us a message to get started!
How do you define paradise? Crack open that dusty dictionary you’ve been using as a doorstop, and it’ll say something like: paradise is an idyllic place of contentment.
Luckily for us, we live and work as contractors in Paradise (with a capital P)! And we sure are happy to be part of a family business in this welcoming little mountain town. In fact, we’re going to count down the top five reasons we love being a construction company based in Paradise, California.
5. Community events. Community is the core of what we build at Trilogy, and we love supporting fundraisers. It does our hearts good to see our town show up for events like the Paradise Cook-off, which raised much-needed funds for the Boys and Girls Clubs of North Valley.
4. Being part of the Valley Contractors Exchange. We’re thrilled to belong to this unique non-profit, member-run organization for contractors in Paradise and beyond. Not only does the Valley Contractors Exchange connect responsible contractors and trades, but it also provides social, business, and educational opportunities for members.
3. Canine co-workers. Paradise’s heavenly mix of laid-back locals is welcoming to our construction crew (including the 4-legged kind), allowing us to bring our favorite Fido Ruger to job sites. We’re so glad we can take our dog to work!
2. Working with highly-skilled subcontractors. At Trilogy, we’re proud to partner with highly skilled professionals who share our commitment to craftsmanship, accountability, and community. Our team thrives on strong relationships, and we hold our subcontractors to the same level of trust, dependability, and quality as our own employees. This approach means we don’t just work side by side, we learn and celebrate together.
1. Good neighbors who help neighbors. The #1 reason we love being a contractor in Paradise is you! We think our Paradise neighbors are pretty special since they’re always willing to lend a helping hand. Whether it’s helping the Ridge rebuild or sharing fire safety resources to protect Paradise for the future, we’re proud to be a part of this supportive community.
You know the old saying…a picture is worth a thousand words. It’s why we’re including some bonus snaps of some of the jobs we’ve done and subcontractors we’ve worked with throughout our 50+ years in the Paradise community. Check them out!
Trilogy is not just proud to be a contractor in Paradise, but we’re also grateful to call this beautiful place home. Our family business has been helping our neighbors in Paradise—and all of Butte County!—build and rebuild since 1967. If you’re ready to take the first step with our trusted construction company in Paradise, California, contact us today!
Congrats on deciding to build a home! While it may seem like there are a zillion things to do between now and getting the keys, don’t sweat it. Trilogy is here to guide you through everything related to permits and home-building regulations in Butte County.
One of the best parts of choosing Trilogy as your home builder? We help you from beginning to end of the process. We’ll create a personalized True Quote for your home that outlines the costs for the entire project and get you started on all the paperwork part of the process. When it’s time, we’ll help you deliver the final architectural home plans and get your permits to begin building.
If deciphering the language of town and country home building regulations in Butte County isn’t your idea of a perfect afternoon, here’s the good news: Trilogy will handle it. We’ll submit your plans on your behalf to the building department, sanitation department, and any other applicable regulatory authorities. Taking these tasks off of your shoulders is just one of the ways we make it easier for you to get into your dream home!
If any challenges or questions arise during the permit process, Trilogy’s got your back. We’ll be the liaison between the architect and the planning authorities. Streamlining the communication down to one central party (us!) will simplify the process and save everyone time. Plus, after decades in the business, Trilogy is very familiar with town and county regulations.
Once the permits have been approved and issued, not only will Trilogy pick them up, we’ll pay for them, too. You can reimburse us after with no mark-up. This is ideal for clients who are relocating from another area or simply too busy picking out paint colors!
After getting the keys to your new home sweet home, Trilogy will hand over the warranty and all the documentation for the build, so you’ll have all the info you may need at your fingertips.
At Trilogy, we believe building or rebuilding a home should be an exciting and fulfilling journey. It’s why we do everything we can to remove stress from the process. You can feel confident knowing you have decades of our family’s business experience and care behind you, from the first call to the final build and all the paperwork in between. If you’re ready to get started, contact Trilogy today!
In one corner, the reigning champ: open floor plan, which has been the preferred layout for hosting. In the other, the underdog: closed floor plan. And in this rumble, the closed floor plan is quickly becoming a favorite. Why? With more people working and studying from home and needing private spaces for their jobs, doing homework, and unwinding—especially around the holidays—the closed floor plan has once again taken the lead.
Still trying to decide on your own home layout—or considering a swap? Here are a few things to keep in mind.
When choosing a layout for your new home, it’s important to consider your family size, lifestyle, day-to-day needs, and design tips. Both open and closed floor plans have pros and cons, so how do you determine which one is a knockout? Check out our list below!
What it looks like: One large central space for the living room, dining room, and kitchen.
Who it’s good for: Families who want to keep an eye on kids or people who entertain a lot and like big rooms to socialize (especially during the holidays!). It also works well for those in the deaf community since it’s easy to see everyone in one space and communicate.
Benefits: Open floor plans offer great visibility and make it easier to see what’s going on throughout the house. They’re also easier to clean and maintain since everything is in one combined space.
Challenges: An open floor plan can lack privacy, be more difficult to heat, and it can show clutter.
Design Tips: Create smaller spaces within the room by using large bookcases as walls. Investing in energy-efficient windows and insulation can reduce heating and cooling bills. And it’s easy to add cubbies, chests, armoires, and other storage solutions to hide clutter.
What it looks like: A classic home layout composed of a separate kitchen, dining room, living room, and bedrooms.
Who it’s good for: Those who work from home or need a dedicated space for activities like studying. It’s also great for those who want to separate the loud TV watchers from those doing work or cooking dinner.
Benefits: Peace. Quiet. Privacy! Closed layouts provide separate spaces designed for specific tasks like cooking, eating, watching TV, studying, and socializing.
Challenges: Large families who need to keep an eye on a big brood may find it more challenging to run from room to room.
Design Tips: Make small rooms seem larger by painting them in light colors and installing mirrors or expansive windows.
What it looks like: Open concept kitchen/living room with separate rooms in the rest of the house, or any combo of open and closed rooms.
Who it’s good for: Those who appreciate the benefits of both open and closed-concept homes, or those who can’t decide between the two!
Benefits: Homeowners get the best of both worlds, with one big kitchen and living room combo perfect for large gatherings, while still creating smaller, more private rooms like a formal dining room, office, or bedrooms.
Challenges: Because it’s neither fully open nor totally closed, this floorplan might feel indecisive or incohesive design-wise.
Design Tips: Pick a consistent color theme and patterns in furniture, paint, and decor to unify the design.
When picking a layout, it’s important to consider function as well as form, timelessness vs. trends. Think about what would be the most practical for your everyday life and annual get-togethers. And if you’re working with an existing open floor plan, you can always add a half wall to suggest a division of space into rooms. For closed floor plans, you could take out a wall or two.
Still not sure which layout is right for you? Luckily, Trilogy has over five decades of experience and is skilled in helping our clients choose between an open floor plan, closed floor plan, and hybrid floor plan. We’ll make sure you pick a winner! Contact us today to find out how.
If you’re in the market for a new house, you’ve most likely heard the terms “stick-built,” “modular,” “manufactured,” or “mobile.” But what’s the difference between them all?
Keep reading to find out!
This is the most traditional method of building a home, utilizing a wooden frame and roof trusses made of lumber. Steel can also be used, although this is less common. They’re built onsite, piece by piece, on a permanent foundation or slab.
Best for: Homeowners who want a unique house suited to their lifestyle and choices made with quality natural materials that stand the test of time. Trilogy builds only stick-built homes in either our custom or semi-custom Palisades Homes lines.
Lifespan: 100+ years
Pros:
Cons:
Unlike stick-built houses, modular homes are constructed in sections off-site in a factory. They’re engineered using different materials such as metals or wood. They’re shipped in sections and fully assembled onsite, usually to permanent foundations.
Lifespan: 50+ years
Best for: Homeowners building in a remote or challenging area, or for those looking for a lower-cost, lower-fuss option that looks great without all the decisions.
Pros:
Cons:
While many people confuse mobile homes with manufactured homes, the term “mobile homes” actually refers to a certain type of unit constructed before 1976, created after WWII to meet the demands of a booming population and the growing need for housing. Instead of being built on a foundation, they’re constructed on a metal chassis.
Bonus Fun Fact: Did you know 3D printers can now print a home? There is an entire housing development being built using a giant concrete 3D printer!
Despite their differences, stick-built and modular homes all have something in common—they’re required to follow specific local and state building codes and comply with the HUD code.
While these codes have similarities, there are clear requirement differences for the type of home. Title Code 24 (stick built), for example, requires fire sprinklers no matter what size, whereas Title Code 25 (modular) requires sprinklers if the build is over 1,200 sq ft. Similarly, Title Code 25 allows generators as a sole power source for modular homes, but Title Code 24 requires stick built homes to have alternate sources.
Learn more about these codes here.
Trilogy is proud to have constructed countless stick-built homes since 1967. After learning about the difference between stick-built and manufactured homes, it;’s easy to understand why. We take pride in crafting unique homes for our clients from the ground up. If you want something special built tailor-made just for you, contact Trilogy today.
