The cost to build a 650 sq ft, 2 bedroom Accessory Dwelling Unit (ADU) typically ranges between $180,000 and $275,000 in San Diego, depending on factors like location, materials, site conditions, and the complexity of your house plans. This investment covers everything from initial design and permitting to full construction, delivering a fully functional additional living space on your property. Since square footage, lot layout, and design preferences all impact the final cost, we provide a detailed quote during your feasibility study to give you a clear, personalized breakdown before you begin.

For detached ADUs like the Oak (450–650 sq ft), San Diego County allows a height up to 24 ft on single-family lots, provided you meet 4-foot side and rear setbacks. Units ≤800 sq ft also benefit from waived floor area ratio (FAR) and open space minimums. Conversions of existing structures have no additional setback requirements. Our team handles all permitting details, ensuring compliance with local zoning, utility access, and fire safety codes.

Absolutely! A 650 sq ft, 2 bedroom ADU house like the Oak is perfectly designed to function as a rental unit for either long-term tenants or short-term vacation stays. With two spacious bedrooms and easy access to a shared bathroom (or the option to modify plans for private bathrooms), this layout attracts a wide range of renters seeking comfortable shared living. Thanks to thoughtful house plans that maximize functionality within a compact footprint, you can command competitive rental rates in today's market. Plus, since the design meets all applicable building codes, it ensures smooth permitting and leasing processes. Two-bedroom ADUs are among the most trending plans right now, offering homeowners a lucrative opportunity to generate passive income while boosting property value.

In most cases, no additional parking is required when building the Oak ADU, especially if your property is located within 0.5 miles of public transit or the ADU is a conversion of existing space. San Diego's flexible ADU laws are designed to accommodate property constraints, making this a smart choice for individuals looking to maximize their lot’s potential. For city properties, where space is often limited, these parking exemptions offer the perfect balance between convenience and compliance. As part of your project, we also consider exterior details like pathways and entrances to ensure your ADU is easily accessible while blending beautifully with the main home.

For most building projects involving the construction of ADUs like the Oak, the entire building process—from initial design to move-in—typically takes about 6 to 9 months. Thanks to our streamlined, turnkey approach, we manage everything under one roof, including securing your building permit and overseeing construction. Even with compact designs like this 650 sq ft, 2-bedroom ADU, careful planning and expert project management ensure your new living space is delivered efficiently, on schedule, and ready to enjoy.

Yes! The Oak ADU house is thoughtfully designed by our construction experts to provide everything you need for comfortable, independent living. It features a full kitchen complete with generous counter space, a large island perfect for chair buffet dining, and high-end finishes that elevate the feel of the home. For added convenience, there's a dedicated closet with laundry tucked near the bedrooms, keeping essentials close without sacrificing ample living space. Our carefully crafted architectural designs ensure that even within a compact footprint, you enjoy the functionality and style typically found in larger homes.

Definitely! The Oak ADU is perfectly designed for multi-generational living, offering a smart bedroom plan with two equally sized bedrooms positioned for privacy and a centrally located bathroom for shared convenience. Its compact, open-concept living spaces create a welcoming, versatile environment where families can gather without feeling cramped. A dedicated laundry area and thoughtful built-in storage solutions ensure everyday functionality, making this layout ideal for aging parents, adult children, or extended family members who want independent living while staying close to loved ones.

Yes, absolutely. Adding an ADU house like the Oak is a highly attractive option for boosting your property’s value. On average, homeowners see a 25–34% increase in property value, with some resale values climbing by up to 51% after completing a well-designed ADU. A 650–800 sqft spacious 2 bedroom ADU, especially one with a smart bedroom floor plan like the Oak, appeals to both buyers and renters—making it one of the most cost-effective investments you can make to grow your home’s long-term equity and marketability.

Yes! The Oak floor plan is packed with thoughtful design features that maximize livability and style. It offers complete privacy with a smart central hallway separating the bedrooms, along with a dedicated dining area integrated into the convenient L-shaped kitchen—perfect for casual meals or entertaining. A large kitchen island enhances prep space and social connection. One bedroom with deck access creates a seamless indoor-outdoor experience, while the additional bedroom provides flexibility for guests, family, or a home office. The layout includes options for a walk-in closet to boost storage and features a vaulted ceiling in the living area, creating an airy, open feel. Altogether, the Oak delivers a beautiful balance of living space, making it an extremely attractive option for anyone wanting style and functionality in a compact footprint.

No! California permanently removed owner-occupancy requirements for ADUs permitted since January 2020, regardless of unit size. You can rent out both your main home and the Oak ADU, maximizing flexibility and rental potential. (Note: Junior ADUs still require owner occupancy.)

Choosing 2 bedroom tiny home plans offers the perfect blend of flexibility, functionality, and future-proofing for homeowners. Unlike studios or one-bedroom units, two-bedroom layouts allow for greater versatility—whether it's housing a small family, hosting guests, creating a home office, or preparing for changing life stages. They provide more privacy and adaptability while still maintaining a compact, cost-effective footprint. Plus, two-bedroom ADUs appeal to a wider range of renters, boosting both marketability and long-term property value.

A 650 sq ft floor plan is incredibly versatile and ideal for a wide range of uses. It's perfect for multigenerational living, offering independent but close-by housing for aging parents or adult children. It also shines as a guest house, providing a comfortable, private space for visitors. Homeowners can use it as a rental property to generate passive income or convert one bedroom into a home office or creative studio. The size is also well-suited for those seeking to downsize without sacrificing essential amenities like a full kitchen, laundry, and separate sleeping quarters.

When designing ADU plans, several key factors must be considered to ensure the space is functional, comfortable, and code-compliant. First, understand the local zoning regulations and setback requirements to maximize buildable area. Next, prioritize a layout that optimizes flow, minimizes wasted space, and provides privacy between living areas and bedrooms. Storage solutions, natural lighting, and multi-functional furniture are crucial for enhancing usability in smaller spaces. Also, consider future flexibility—designing spaces that can adapt to changing family needs or renter preferences adds long-term value.

Creating a rental income stream with ADU plans starts with designing a unit that is attractive to renters: functional layouts, private bedrooms, a full kitchen, laundry, and a comfortable living area are key. Location matters too—proximity to public transit, shopping, and employment centers increases rental demand. Once built, you can market the ADU for either long-term leases or short-term vacation rentals, depending on local regulations. A two-bedroom ADU, like the Oak plan, broadens your tenant pool to small families, roommates, and traveling professionals, allowing you to command higher rents and maintain low vacancy rates.

While 650 sq ft is considered compact compared to traditional homes, it's a highly efficient size for an ADU. Thoughtful floor planning—like open-concept living areas, minimized hallway space, and smart storage—makes 650 sq ft feel surprisingly spacious and functional. It's large enough to comfortably accommodate two bedrooms, a bathroom, a full kitchen, and even laundry, offering everything needed for independent living. For many homeowners and renters, 650 sq ft strikes the ideal balance between affordability, functionality, and low maintenance without feeling cramped.