Accessory Dwelling Units ADUs

This type of ADU is construction on the lot of a single family home, often in the back or side yard. When you’re ready, you’ll get guidance on which model fits your space, your goals, and your timeline. Accessory Dwelling Units or ADUs have emerged as a popular solution to housing shortages. We’ll help you map the smartest path—from plan selection and permitting to utilities and installation coordination.

Do adu plans and adu homes include kitchen layouts, designs for space, and sqft targets that fit how we live?

Villa Homes is the largest ADU builder in California, offering 15-floor plans with customizable interior finishes. Well, for starters, most households in the United States are now 1 and 2 person households. Yet, most of our legacy housing stock, and even our new residential housing stock, is designed for families of 4 or 5 people. While their structural forms vary, ADUs share many common traits and face similar design and development challenges.

The style is characterized by a seamless flow between indoor and outdoor spaces, often incorporating outdoor patios and large sliding glass doors. Your property has untapped potential—unlock it with ADU Express. We specialize in fast, high-quality ADU construction, helping homeowners maximize their space and generate additional income. Whether you're looking for rental revenue, a home for family, or increased property value, we deliver custom ADUs quickly and efficiently.

What is an ADU contractor, and how do they differ from an ADU builder?

Homeowners get a predictable path from design to construction, with adu features that fit the property, the backyard, and long-term maintenance. ADU construction costs range dramatically based on type, size, and location, typically running $100,000-$300,000 for complete projects. Garage conversions are least expensive at $80,000-$150,000 since the structure exists. Detached new construction ADUs cost $150,000-$300,000+ depending on size and finishes.

The 7 Best Prefab ADUs for Your Backyard – Expert Picks

You get precision-engineered panels that arrive ready to assemble, along with drawings that guide the process from day one. Water heaters in ADUs should be tankless models saving space while providing unlimited hot water. They mount on walls, last longer than tank models, and save energy, costing $1,200-$3,000 installed. Include GFCI outlets in kitchen, bathroom, and outdoor areas for safety. We are your trusted partner for high-quality, custom ADUs in the greater Los Angeles area. With a family-operated approach and a dedication to excellence, we offer the best value for your investment.

Top Benefits of Building an ADU Home

This option caught my attention because I’ve got a bit of a flipper in me. Of course, I know I’d have to hire a local contractor for at least some of the work. I’m a total sucker for a shed-type roof with transom windows, you know? The dark sections represent the percent of one person households in 2014.

Weather delays, permit complications, and material availability can extend schedules so be sure to build contingency time into your planning. Match or complement your main house’s exterior for visual harmony. Fiber cement siding at $6-$12 per square foot offers excellent durability and low maintenance.

I focused on 250 sq ft to 500 square foot options to allow for enough space for my daughter to live comfortably but could accommodate an office in the future. Stick-built ADUs are constructed on-site, offering customization but at a higher cost and longer construction time. The Solo 2 is an entry-level Accessory Dwelling Unit with 384 square feet measuring 16 feet wide and 24 feet deep. Bay Modular ADU company offers services from delivery to installation and site preparation.

But as I reflect on my personal experience, it actually starts to seem entirely possible. When I moved to DC, my first home had an informal ADU in the basement. Could 1/10th of all residential housing stock in the US be informal ADU-type development? If so, this means there are more than fourteen million ADUs out there. These differentiating characteristics make ADUs a distinct type of housing. Until recently, there has been a lack of common understanding around the language and best practices of ADU development.

About Go ADU Construction

One of the things that impressed me most was the cleanliness of their worksite. Their attention to detail and commitment to a clean workspace made the entire process a breeze. We are a family-owned and operated company with a passion for ADU planning and construction, serving the Los Angeles community since 2017. We have personally experienced the life-changing impact of Accessory Dwelling Units, inspiring us to share these benefits with our valued clients.

I just wrapped up an ADU project with Go ADU, and I’ve got to say, I’m really happy with how it turned out. They kept the site super clean, which isn’t always the case with contractors. There were a couple of hiccups, but they were quick to let me know and always had a plan to keep things moving.The final result looks great—exactly what I was hoping for. I hired Go ADU Construction to build an ADU for us, it just got completed. They finished the job within the exact time frame that they promised. Experience a personalized approach to ADU construction with GO ADU.

A Junior Accessory Dwelling Unit or JADU is a unit that is no more than 500

Here is one of the better ADU cost calculator I have come across. With the increasing demand for affordable housing and the rise of remote work, ADUs are quickly becoming popular for homeowners nationwide. The base unit starts at $105,500, plus site prep is estimated to be under $130,000. It is a lofty goal for an ADU company, but their goal also means you can not make customizations. I almost passed this option because the website was underwhelming until I found their pictures! The more I looked at the product available, the more I started to put this option on the list of contenders.

Keep plumbing runs short by clustering kitchen and bathroom together. Install shut-off valves for the ADU separate from the main house so you can service each independently. Need to estimate costs for your rental property construction project? Our construction calculators give you instant estimates in seconds. Browse our full collection of online calculators covering materials, labor, budgets, and all your ADU building needs. Hiring Go ADU for my project was finding a gem in a sea of contractors.

years of combined experience in the building industry to smoothly guide your project from an idea to reality.

This will be a cozy and charming design for your ADU inspired by mountain chalets. Add a white and blue color palette with some nautical accents for a coastal vibe. Add light and breezy beach-inspired décor to create an elegant coastal charm in your ADU design ideas.

Smarter ADU Floorplan Guidance

• Yes, an in-law suite and guest house adds value to a property.
• These will give a warm and welcoming southern aesthetic appeal to your ADU spaces.
• There are simply too few permitted ADUs to make a real difference in the housing stock.
• Browse our full collection of online calculators covering materials, labor, budgets, and all your ADU building needs.
• Smaller units (up to 500 sq. ft.) created by converting existing space, like a garage or attic, into a living area.
• Whether you can build a backyard ADU depends on your local zoning regulations.
• Wall-mounted vanities make small bathrooms feel more spacious.
• Garage conversions take shortest at 4-6 months since the structure exists.
• Some cities are bringing this shadow form of housing into the light by design.
• Many cities waive parking replacement requirements for garage conversions.
• I almost passed this option because the website was underwhelming until I found their pictures!
• Contemporary ADUs focus on current trends and often incorporate cutting-edge technology and materials.

Attached ADUs share at least one wall with the main house, reducing costs ($100,000-$200,000) since they use existing foundation and utilities more easily. Attached ADUs work well for multigenerational living where you want proximity, while detached units suit rental income or adult children wanting independence. Choice depends on lot configuration, budget, intended use, and privacy preferences. Yes, adu plans translate lifestyle goals into adu homes with practical kitchen designs, bedroom privacy, and right-sized sqft.

Full-service assistance from design to permits and construction, ensuring a seamless and stress-free experience. Use repurposed shipping containers to give an industrial appeal to your ADU spaces. These will be aesthetically pleasing, modern, as well as eco-friendly ADU design ideas. Create a private entrance and add a pretty kitchenette to your ADU design ideas.

A JADU (Junior ADU) is typically smaller and often created within the existing home footprint (rules vary). If you’re deciding between an ADU and JADU, we can help you compare tradeoffs based on your goals. We help you connect the dots so the project stays coordinated from concept to move-in. Our expert team of designers and builders handles everything from planning to construction. Use simple furnishings with neutral colors and a mix of natural materials. The modern design will give a minimal and contemporary vibe to your ADU spaces.

What’s the difference between attached and detached ADUs?

We help you prepare for the local process and avoid common “gotchas” that cause delays. We start with your “why” (rental, family suite, office, resale) and your site constraints (access, slope, utilities, setbacks). A customized guide walking homeowners through every step of the ADU process in your community.

When learning about a new design concept like an ADU, it’s natural to want to know exactly what that concept looks like in the flesh. We want to embed the ADU design concept in or brains as a tangible object that we can mentally reference. Let’s broaden that mental model by exploring and understanding the range of common ADU types.

of existing units on the lot.

Open shelving in kitchens saves money versus upper cabinets and makes small spaces feel larger. Built-in storage and multi-functional furniture maximize usable square footage. ADU plumbing typically connects to your main house’s water and sewer lines—budget $50-$100 per linear foot for pipe runs. Use PEX tubing for water supply lines since it’s flexible, freeze-resistant, and installs quickly.

At average construction costs of $150,000-$200,000, rental income often provides 5-8% annual returns. Beyond financial returns, ADUs provide flexibility for housing family members or home offices. An Accessory Dwelling Unit (ADU) is a secondary housing structure built on the same lot as a primary residence. These units are self-contained, featuring their own kitchens, bathrooms, and living spaces.

The Summit is a 364 square feet model measuring 14 feet by 26 feet. The Studio Shed ADU company has offered well-designed and easy-to-navigate ADU solutions since 2008. All their products are prefabricated in Colorado, and they ship nationwide.

ADU financing and grant programs

Add some cozy furnishings for a comfortable and practical experience of hosting guests in your ADUs. Add some plaid textiles, a stone fireplace, and wooden beams to your ADU design ideas. It will create a cozy and rugged ambiance, ideal for colder climates.

Do ADUs add value to my property?

We evaluate property access, garage options, room flow, and sqft so homeowners gain adus that feel intentional, quiet, and secure. We confirm code steps, organize trades for plumbing, electrical, and kitchen fit-outs, and protect your property. Detached ADUs are standalone structures in your yard offering maximum privacy, separate utility metering options, and complete design flexibility. They cost more ($150,000-$300,000+) due to complete new construction but provide better rental income potential and property value increases.

About Adu solutions la

For one thing, the fact that they’re secondary housing units on single-family residentially zoned lots puts ADUs into a unique category. ADUs also have some other distinguishing characteristics that help further define, differentiate, and distinguish them from other housing types. Get detailed bids from at least three contractors based on identical plans and specifications. The lowest bid isn’t always best—look for contractors who catch potential issues in your plans, suggest value engineering ideas, and provide clear timelines. Read online reviews but weight recent references more heavily.

PROPERTYBUILD

Find the sweet spot where you have adequate space without paying for square footage you don’t need. Energy-efficient windows, insulation, and HVAC reduce long-term operating costs and may qualify for rebates offsetting higher upfront expenses. We provide modular adu for sale comprehensive ADU services including planning, design, permits, construction, and final inspection. Our team handles every aspect of the project from start to finish. Mid-century modern ADUs draw inspiration from the 1950s and 1960s, emphasizing simplicity and integration with nature. These designs often feature flat planes, large glass windows, and open floor plans.

Keep costs reasonable by choosing garage conversions or attached ADUs over detached new construction when possible. Standard windows, doors, and fixtures from major suppliers beat custom options by 30-50% without sacrificing quality. Keep the kitchen and bathroom in one “wet wall” to minimize plumbing costs since running pipes is expensive.

• We help you connect the dots so the project stays coordinated from concept to move-in.
• Industrial ADUs often have open floor plans, high ceilings, and large windows, creating a spacious and airy feel.
• Here is one of the better ADU cost calculator I have come across.
• You can move here to stay in proximity with your family as well as have independence.
• Detached new construction ADUs cost $150,000-$300,000+ depending on size and finishes.
• Get detailed bids from at least three contractors based on identical plans and specifications.
• Attached ADUs share at least one wall with the main house, reducing costs ($100,000-$200,000) since they use existing foundation and utilities more easily.
• As a family-operated business, Adusolutionsla values integrity, quality, and community.
• The Alon 240 is a compact ADU measuring 240 square feet, with dimensions of 20 feet by 12 feet.
• Whether it’s accommodating aging parents, providing a space for adult children, or generating rental income, ADUs offer a flexible housing solution.
• But, in the case of building habitable living space, you’re always required to obtain a building permit.
• Availability and funding rounds can change—so we treat this as a “check current status” item during planning.
• Add unique architectural details and some modern upgrades to your ADU design ideas.
• ADU construction timelines range from 4-12 months depending on type and local permit processing.

Setback requirements control how close ADUs can be to property lines—typically 5-10 feet from side and rear lines. Many cities eliminated parking requirements for ADUs to encourage construction. Some areas require owner-occupancy (owner lives on-site), though this is being eliminated in many communities. Yes, most areas allow ADU rentals, making them popular for generating supplemental income. ADU rental income typically ranges from $1,200-$3,000+ monthly depending on location, size, and finishes. Check local regulations—some cities have owner-occupancy requirements mandating you live in either the main house or ADU (not both rented).

No setback shall be required for an ADU created within an existing living

Prefabricated or modular ADUs are built in factories then delivered to your site mostly complete. This reduces construction time from 6-10 months to 3-6 months and can save 10-25% versus site-built construction through factory efficiency. Total costs may equal site-built, but faster timelines and predictable pricing provide value. An 800 square foot ADU costs 30-40% less than a 1,200 square foot version, but you still need a full kitchen and bathroom either way.

Laminate countertops at $20-$40 per square foot offer good value. I recently had the pleasure of working with Go ADU on my ADU project. From start to finish, their team was incredibly professional and efficient.

• It will add a modern and pleasing vibe to your ADU design ideas.
• Want to know how adding an ADU could impact the sale of your home?
• These units often include decorative elements like cornices, columns, and brick or stone facades.
• We are your trusted partner for high-quality, custom ADUs in the greater Los Angeles area.
• Some prefab companies provide turnkey service managing everything, while others just deliver modules leaving you to coordinate foundation, utilities, and permits.
• An adu builder converts adu designs into buildable drawings, then sequences additions or renovation stages that satisfy california codes.
• Portland, Oregon, is the de facto leader in the US for this particular type of infill housing.
• Bring in an adu builder early so an adu expert can shape floor plans, bedroom counts, bathroom specs, and kitchen layouts that match your property and average budget.
• There are simply too few permitted ADUs to make a real difference in the housing stock.
• If you want a no-nonsense, get-the-job-done ADU contractor in Los Angeles, look no further than Gil and GO ADU.
• There’s also the option to use recycled materials in construction, reducing the environmental impact and making your unit even more eco-friendly.
• The solar-paneled PowerPatio will give power to the integrated lighting and other electric appliances.

Accessory Dwelling Units (ADUs), often referred as “ADU homes”, are revolutionizing modern housing. Whether you’re looking to generate extra income, accommodate family members, or add value to your property, ADUs offer a flexible and cost-effective solution. Prefab ADUs work best for straightforward rectangular designs on accessible sites where cranes can deliver modules.

• Gil and his amazing team just completed my ADU project in less than five months.
• Create your ADUs with beautifully patterned high ceilings, open-air spaces, and lots of natural light.
• But even if they aren’t going to solve all a city’s problems, ADUs may help homeowners solve some of their own problems.
• This will add a touch of sleek and sophisticated city ambiance to your place.
• ADUs offer versatile living arrangements that can adapt to various family needs.
• After all, there are options like ADUs that add not only to the functionality of the space but also to the property’s overall value.
• These units can be either attached to the main house, such as a converted garage or basement, or detached, like a standalone cottage in the backyard.
• I hired Go ADU Construction to build an ADU for us, it just got completed.
• Most cities now allow ADUs in residential zones, but specific requirements vary.
• Faster build times and lower operating costs enhance your return.
• The Solo 2 is an entry-level Accessory Dwelling Unit with 384 square feet measuring 16 feet wide and 24 feet deep.
• I love the huge door windows in the plan, and it would be so freaking cool if I had a view to sit and enjoy.
• This exotic and vibrant design for your ADU will create a pretty Moroccan décor for your place.

ADUs typically increase property values by 20-30%, often exceeding construction costs and creating immediate equity. A $150,000 ADU might add $180,000-$250,000 to property value depending on location and rental market strength. Beyond direct value increase, ADUs make properties more desirable—they sell faster and attract more buyers than comparable homes without ADUs. Rental income provides ongoing returns, with well-located ADUs often generating 5-8% annual returns on construction costs.

• But, in the case of building habitable living space, you’re always required to obtain a building permit.
• However, after completing the work on schedule and within budget, I can confirm that everything said about Go ADU is true.
• Get detailed bids from at least three contractors based on identical plans and specifications.
• Their attention to detail and commitment to a clean workspace made the entire process a breeze.
• Add unique architectural details and some modern upgrades to your ADU design ideas.
• It will create a cozy and rugged ambiance, ideal for colder climates.
• These options provide the perfect solution for those looking for a quick and efficient way to add living space to their backyard.
• Fill out the quick form to get matched with trusted experts near you.
• We help you connect the dots so the project stays coordinated from concept to move-in.
• Austin, Texas has also experienced a substantial bump in ADU development since legislative zoning changes in 2015.
• You get precision-engineered panels that arrive ready to assemble, along with drawings that guide the process from day one.
• Keep the kitchen and bathroom in one “wet wall” to minimize plumbing costs since running pipes is expensive.
• Attached ADUs share at least one wall with the main house, reducing costs ($100,000-$200,000) since they use existing foundation and utilities more easily.

Cash-out refinancing replaces your existing mortgage with a larger one, taking the difference in cash. Some cities and states offer ADU-specific loan programs—check with your local housing authority. Specializing in new construction projects across California, Adusolutionsla offers tailored building solutions that prioritize craftsmanship and durability. We work with clients from concept to completion to ensure your vision becomes reality.

Many homeowners see ADUs as a lucrative investment opportunity. By renting out the unit, owners can generate a steady stream of income. This additional revenue can help offset mortgage payments, property taxes, and maintenance costs.

• With the increasing demand for affordable housing and the rise of remote work, ADUs are quickly becoming popular for homeowners nationwide.
• You may also need to secure permits for utility connections such as water, electricity, and gas.
• Finally, we'll review the entire step-by-step process to ADU development from start to finish.
• Villa Homes is the largest ADU builder in California, offering 15-floor plans with customizable interior finishes.
• Fill out the quick form to get matched with trusted experts near you.
• We adhere to local building codes and regulations, using high-quality materials and skilled craftsmanship.
• Building inspections occur at key phases—foundation, framing, rough-in, and final.
• Among other demographic factors at play, single person households have become extremely common in major cities, representing more than ⅓ of the households of many cities.
• This added value can be a substantial return on investment for homeowners looking to sell in the future.

An ADU contractor and an ADU builder often overlap in their roles, but there are slight distinctions. They work closely with homeowners to ensure compliance with permits and other regulations. I’m a long time real estate investor and I’ve worked with at least a dozen contractors. Communication was superb — clear, realistic timelines and constant updates with photos. He and is team were highly skilled in understanding the nuances of my project. I’m thrilled with the final product and will absolutely be using GoADU again for my next project.

Building inspections follow the same pattern as other construction—foundation, framing, rough-in for utilities, insulation, and final inspection. Work with contractors familiar with local processes to minimize delays. ADUs typically add 20-30% to property values while costing 10-20% of the home’s value to build, creating immediate equity. Rental income provides ongoing returns—ADUs rent for $1,200-$3,000+ monthly depending on location.

Create your ADUs with beautifully patterned high ceilings, open-air spaces, and lots of natural light. Creative and inspiring, this will add a stunning visual appeal to your ADU spaces. Use plush bedding and elegant décor in your ADU design ideas to create a luxurious space. Add high-end furniture and additional features for a comfortable stay in the ADUs.

Glass House

Gil and his amazing team just completed my ADU project in less than five months. I am extremely satisfied with their promptness, work ethic, and the quality of the job. As I was researching my options on Yelp before working with Go ADU, I read the reviews about Gil but found them a bit unrealistic and market-pitched. However, after completing the work on schedule and within budget, I can confirm that everything said about Go ADU is true. The timeline for ADU construction varies based on the project's complexity and size. Typically, it takes several months from planning to completion.

Add unique architectural details and some modern upgrades to your ADU design ideas. Create a wonderful historic charm blended well into modern décor and patterns, giving a distinctive ambiance to your ADUs. Use sliding glass doors, outdoor kitchens, and some covered patios to create stunning open-air ADU design ideas. These will also create a seamless integration of doors and outdoors, making your place more inviting. Add decorative trim, stained glass windows, and antique furnishings to your ADU design ideas for a charming appeal.

Use it throughout except possibly the bedroom where carpet adds warmth. For kitchens, use apartment-sized appliances that fit small spaces while providing full functionality. Stock cabinets at $75-$150 per linear foot provide adequate storage.

This depends on what your local zoning code says is permissible. In other cases, an ADU may not be allowed, but alternatives such as a guest house or a detached office or bedroom with a bathroom may be allowed. Use fiberglass or acrylic tub/shower surrounds—one-piece units eliminate leak-prone seams. Wall-mounted vanities make small bathrooms feel more spacious.

• Use plush bedding and elegant décor in your ADU design ideas to create a luxurious space.
• Short-term rentals (Airbnb/VRBO) face additional restrictions in many areas.
• A turnkey solution to display and manage your jurisdiction’s pre-approved plans program.
• At ADU Express, we specialize in designing and building high-quality ADUs that maximize space, value, and functionality.
• Electrical service typically runs through a sub-panel from your main electrical panel ($1,500-$3,000).
• I love the huge door windows in the plan, and it would be so freaking cool if I had a view to sit and enjoy.
• Imagine transforming your backyard into a source of passive income or creating the perfect, independent living space for family members.
• For one thing, the fact that they’re secondary housing units on single-family residentially zoned lots puts ADUs into a unique category.
• They offer less privacy than detached options and may require soundproofing between units.
• These units can be either attached to the main house, such as a converted garage or basement, or detached, like a standalone cottage in the backyard.
• This will add a touch of sleek and sophisticated city ambiance to your place.
• Well, for starters, most households in the United States are now 1 and 2 person households.
• They finished the job within the exact time frame that they promised.

General contractors experienced with ADUs understand the unique challenges of small-scale construction, local regulations, and efficient space planning. Look for contractors who’ve built multiple ADUs and can provide references from recent projects. Ask to visit completed ADUs they’ve built—this reveals quality and design creativity. ADU construction requires attention to detail that some large home builders don’t provide.

Clever ADUs

• Check out the statistics to get an idea of how the numbers vary in America’s biggest cities.
• A JADU (Junior ADU) is typically smaller and often created within the existing home footprint (rules vary).
• With over 20 years of experience, our dedicated team ensures each ADU project is completed with meticulous attention to detail and superior craftsmanship.
• Some property owners may see significant increases in value, especially if you are on the West Coast.
• Contemporary designs often mix different textures and materials, such as steel, glass, and wood, to create a dynamic and stylish living space.
• Understand which changes are necessary (surprise site conditions, code requirements) versus nice-to-haves you can defer.
• Use large materials with sleek patterns for your ADU design ideas.
• You cannot legally occupy or rent an ADU without a certificate of occupancy proving code compliance.
• Accessory Dwelling Units (ADUs), often referred as “ADU homes”, are revolutionizing modern housing.

The Bay Area is experiencing a boom in the construction of Accessory Dwelling Units (ADUs), and it’s not hard to see why. Here’s a closer look at why more people are building ADUs in the Golden State. Traditional ADUs take cues from classic architectural styles, such as Colonial, Victorian, or Georgian. These units often include decorative elements like cornices, columns, and brick or stone facades. Interiors might feature crown molding, wainscoting, and traditional cabinetry, offering a timeless and elegant living space.

Use large materials with sleek patterns for your ADU design ideas. Add large windows to blend contemporary and rustic touches in your ADU spaces. Mix files of various patterns and add some potted plants, colorful textures, and hanging chairs. The eclectic and colorful choices will give a vibrant bohemian yet relaxing ambiance to your ADU spaces. Add concrete floors, modern art patterns, and some white and black palettes to your ADU design ideas.

The team created an adaptable panel-based building system with unparalleled speed, quality, and sustainability. The Dwellito ADU company offers prefab ADU or site-built options, providing a wide range of ADU plans in a convenient do-it-for-me (DIFM) service. Imagine transforming your backyard into a source of passive income or creating the perfect, independent living space for family members.

I wouldn't hesitate to recommend them to anyone in need of reliable ADU construction services. We’re more than a dealer—we’re dealers, developers, and contractors who guide you through factory-built housing from floorplan to final set. SB9 is a separate path that may allow certain lot splits/duplexing in California under specific conditions. If your goal is additional units, we can discuss whether an ADU route or an SB9 route makes sense for your property and timeline.

An accessory unit is a secondary and architecturally diminutive unit on a property that already has a primary residential unit. Austin, Texas has also experienced a substantial bump in ADU development since legislative zoning changes in 2015. Expect to secure permits for electrical, plumbing, structural work, among others. Partnering with a company like HOMEPLEX ensures compliance with local codes. Tight sealing and high insulation help reduce heating and cooling costs, often by up to 60%. Whatever your goal, you can choose a kit designed to support it.

We map out floor plans by sqft, confirm design choices for bedrooms, a bathroom, and kitchen, and align the house renovation steps so homeowners avoid delays. Our builders coordinate contractors, schedule inspections, and finish adu building that adds space and income, creating adus that feel like part of your homes and property. All ADU builders, deliver adu services, but we go further with transparent financing guidance tied to design choices, sqft, and average costs. We model rental income scenarios for adus, align backyard layouts, and compare floor plans for bedrooms, bathroom counts, and kitchen efficiency. Adu companies bring local experience with accessory dwelling units, zoning, and construction in southern california. Even if your house has space, a well-planned adu can convert underused areas, expand bedrooms, add a bathroom and kitchen, and create income while respecting nearby homes.