2 story ADU options are a smart choice for adding space and value to your property without expanding your home’s footprint. At their core, these two-story accessory dwelling units are small secondary houses built on the same lot as your main residence. They typically include a full range of amenities like kitchens, bathrooms, and living areas, providing flexible living solutions whether you’re housing family members or looking for rental income. These units must comply with local zoning laws, but many areas, including regions in Washington and Oregon, are becoming more flexible about allowing them.
- Definition: An ADU is a secondary residential unit sharing a lot with a primary home.
- Examples: Guest houses, in-law suites, or apartments above garages.
- Benefits: Increases property value and provides extra living space.
My name is Richard Garrett, founder of RG ProBuilders, and I’ve been guiding homeowners through the 2 story ADU construction process for over 20 years. I’m here to help you understand the practicalities of changing your property with a two-story ADU, offering expertise from planning to completion.
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Understanding 2 Story ADUs
2 story ADUs are an innovative way to maximize your property’s potential without sprawling outwards. These structures efficiently stack living spaces, making them ideal for urban areas where space is limited. Whether you’re aiming to generate rental income or provide a comfortable living space for family members, a two-story ADU can meet your diverse needs.
Floor Plans
The beauty of a 2 story ADU lies in its versatile floor plans. You can choose from a range of designs that cater to different space requirements and aesthetic preferences. Common configurations include:
- Compact Designs: Under 500 square feet, perfect for a cozy retreat.
- Medium Options: Between 751 and 1000 square feet, offering room for multiple bedrooms.
- Large Layouts: Up to 1200 square feet, ideal for a full family setup.
Each plan can be customized to suit your property’s constraints and your personal style. For example, some homeowners opt for a carriage house design, placing a dwelling unit above a garage. This approach not only saves space but also provides the convenience of parking.
Design Goals
When designing your 2 story ADU, it’s crucial to align the layout with your goals. Here are some key considerations:
- Functionality: Ensure the space meets your needs, whether that’s a home office, rental unit, or guest suite.
- Privacy: Consider the placement of windows and entrances to maintain privacy between the ADU and your main house. Landscaping can also play a role in creating a secluded feel.
- Universal Design: Incorporate features like no-step entries and wide doorways to accommodate all ages and abilities. This is especially important if you plan to house elderly family members.
By focusing on these aspects, you can create a 2 story ADU that is both practical and stylish, enhancing your property’s value and functionality.
Next, we’ll explore the many benefits of building a two-story ADU and how it can transform your property.
Benefits of Building a 2 Story ADU
Building a 2 story ADU offers several advantages that can improve both your lifestyle and your property’s value. Let’s explore some of the key benefits:
Extra Income
One of the most compelling reasons to build a 2 story ADU is the potential for extra income. With the increasing demand for rental spaces, especially in urban areas like Portland, OR, and Vancouver, WA, a well-designed ADU can become a lucrative rental unit. By renting out your ADU, you can generate a steady stream of passive income. This can help offset mortgage payments or fund other projects.
Family Space
A 2 story ADU provides a perfect solution for multi-generational living. Whether you have aging parents who need to be close or adult children who are moving back home, an ADU offers a private and independent space while keeping family members nearby. This arrangement promotes family bonding and provides peace of mind, knowing loved ones are just a few steps away.
Compact Footprint
In areas where space is at a premium, such as Clark County, WA, and Multnomah County, OR, a 2 story ADU maximizes your property’s potential without sacrificing outdoor areas. By building up instead of out, you maintain valuable yard space for activities, gardening, or simply enjoying the outdoors. The compact footprint of a two-story design also means you can include all the features of a larger home, like multiple bedrooms and a full kitchen, within a smaller area.
Additional Benefits
- Flexibility: A two-story ADU can be adapted over time to meet changing needs. It can start as a rental unit and later become a home office or guest suite.
- Increased Property Value: Adding a 2 story ADU can significantly boost your property’s market value. Buyers often appreciate the additional living space and potential for rental income.
- Sustainability: By utilizing vertical space, you reduce the environmental impact of new construction. Many ADUs are designed with energy efficiency in mind, further enhancing their eco-friendliness.
By embracing the benefits of a 2 story ADU, you can transform your property into a more functional, valuable, and enjoyable space.
Next, we’ll dig into the design process to ensure your ADU perfectly complements your home and lifestyle.
Designing Your 2 Story ADU
Designing a 2 story ADU is an exciting process that allows you to tailor the space to fit your needs and preferences. From custom floor plans to architectural designs, there are many options to consider.
Custom Floor Plans
Customizing your 2 story ADU floor plan is a great way to make sure it suits your lifestyle and property. Whether you want a cozy one-bedroom unit or a spacious four-bedroom setup, the layout can be designed to maximize functionality and comfort. Consider how you will use the space: will it be for family, guests, or rental income? This will guide decisions on the number of bedrooms, bathrooms, and common areas.
- Compact Designs: Ideal for properties with limited space, these plans make the most of every square foot.
- Spacious Layouts: Perfect for larger families or those who desire more room, offering multiple bedrooms and living areas.
Carriage House
A popular design choice for a 2 story ADU is the carriage house, which features a living space above a garage. This design is particularly appealing in urban areas like Portland, OR, where space is limited. A carriage house not only provides additional living quarters but also includes parking, which is a valuable asset in densely populated neighborhoods.
- 1 Bedroom Carriage House: Typically includes a two-car garage with a cozy living space above.
- 2 Bedroom Carriage House: Offers more room for families or tenants, with a larger garage space below.
Architectural Designs
The architectural design of your 2 story ADU should complement your existing home and neighborhood. This ensures a cohesive look and feel, enhancing the overall aesthetic of your property. Consider elements such as rooflines, exterior finishes, and window placement to create a seamless integration.
- Modern Designs: Clean lines and minimalist features give a contemporary look.
- Traditional Styles: Classic designs that blend well with older homes.
- Eco-Friendly Options: Incorporate sustainable materials and energy-efficient systems to minimize environmental impact.
By investing in thoughtful design, your 2 story ADU can become a versatile and valuable addition to your property. Whether you’re looking for rental income, extra family space, or a combination of both, a well-designed ADU can meet your needs.
Next, we’ll explore the construction and permitting process to help you bring your ADU vision to life.
Construction and Permitting Process
Once your 2 story ADU design is finalized, it’s time to transition into the construction and permitting phase. This stage is crucial to ensure your project meets all legal and safety standards.
Permits
Obtaining the necessary permits is the first step in bringing your 2 story ADU to life. This involves submitting detailed construction documents to your local building department. These documents include architectural layouts, electrical and plumbing plans, and more. The city will review these plans to make sure they comply with local building codes and regulations.
Pro Tip: Be prepared for multiple rounds of revisions. It’s common for the city to request changes before granting approval. Working with a knowledgeable contractor can streamline this process, as they are familiar with local requirements and can quickly address any issues that arise.
Site Preparation
Once permits are secured, site preparation begins. This involves clearing the area where your ADU will be built, which may include removing vegetation, rocks, or other obstacles. It’s also the time to install temporary facilities, such as portable toilets, to support the construction crew.
- Staking the ADU Footprint: This visualizes the location of your ADU in relation to existing property features, ensuring everything is in the right place.
- Site Work: Creating a stable base is essential. This might involve leveling the ground or adding fill dirt to prepare for construction.
Energy Reports
To comply with energy efficiency standards, you’ll need to complete Title 24 energy calculations. These reports ensure your 2 story ADU meets local energy regulations, which aim to reduce energy consumption and promote sustainability.
- Title 24 Calculations: These calculations assess the energy efficiency of your ADU, including heating, cooling, lighting, and insulation.
- Eco-Friendly Choices: Consider incorporating energy-efficient systems and sustainable materials to not only meet requirements but also reduce long-term energy costs.
Navigating the construction and permitting process can be complex, but with careful planning and the right team, your 2 story ADU will be ready for construction in no time. Next, we’ll address some frequently asked questions to help clarify common concerns about building a 2 story ADU.
Frequently Asked Questions about 2 Story ADUs
Can you have a 2 story ADU in California?
Yes, you can build a 2 story ADU in California, but it depends on local regulations. Many cities, like San Diego and Oceanside, allow two-story designs. However, there are height restrictions to consider. In general, detached ADUs can be up to 16 feet tall, but those near transit stops might be allowed up to 18 feet. For attached ADUs, the limit is usually 25 feet or the same height as the main house, whichever is lower. Always check with your local building department to ensure compliance with specific codes.
What is the $40,000 grant in California for ADU?
California offers a $40,000 grant to help with the pre-development costs of building an ADU. This grant is designed to cover expenses that arise before actual construction begins, such as design fees, site surveys, and obtaining permits. It’s a great opportunity for homeowners looking to add an ADU but concerned about initial costs. To qualify, you typically need to meet certain criteria, so it’s important to research eligibility requirements and apply early.
Are ADUs legal in Wisconsin?
In Wisconsin, ADUs are legal, but their construction depends on local zoning and permit regulations. Each city or county may have its own rules about where and how ADUs can be built. Generally, you will need to obtain permits and ensure your ADU meets local building codes. It’s crucial to consult with your local planning department to understand specific requirements and permitted uses in your area.
Understanding these FAQs can help you steer the complexities of building a 2 story ADU. Up next, we’ll explore how RG ProBuilders can assist you in creating the perfect space in Vancouver, WA, and Portland, OR.
Conclusion
At RG ProBuilders, we understand that building a 2 story ADU is more than just adding an extra structure to your property—it’s about enhancing your lifestyle and maximizing your home’s potential. With over 15 years of experience, we specialize in crafting personalized ADU solutions custom to your unique needs.
Our team is dedicated to guiding you through every step of the process, from initial design to final construction. We handle all the complexities, including permits and utilities, so you can focus on enjoying your new space. Whether you’re in Vancouver, WA, or Portland, OR, we bring local expertise and a commitment to quality craftsmanship.
Choosing RG ProBuilders means partnering with a team that values personalized service. We take the time to understand your vision and work closely with you to bring it to life. Our comprehensive approach ensures that your ADU not only meets but exceeds your expectations.
Ready to start your ADU journey? Contact us today for a complimentary consultation and let’s make your dream ADU a reality. Experience the difference with RG ProBuilders, where your satisfaction is our top priority.