The cost to build an 800 sq ft accessory dwelling unit (ADU) like the Maple typically ranges from $280,000 to $480,000, depending on key cost factors such as site conditions, utility connections, chosen finishes, and design complexity. In San Diego, most homeowners invest around $350,000 to $400,000 for a fully finished, high-quality unit. This estimate includes design services, permitting, and standard construction. We also offer financing options to help make your ADU manageable and affordable.

Building an 800 sq ft accessory dwelling unit (ADU) in San Diego County is streamlined thanks to favorable zoning laws and simplified code requirements. ADUs of this size require 4-foot side and rear setbacks and typically need no additional parking if located within half a mile of public transit. While ADUs ≤750 sq ft are automatically exempt from impact fees, units up to 800 sq ft enjoy streamlined approvals but must still meet lot coverage, FAR, and open-space rules unless specifically waived by the County. Our construction experts ensure compliance with local standards, making your project approval faster and easier.

The 800 sq ft size hits the sweet spot for many homeowners—it’s what we call the “Goldilocks zone” of ADU living. It’s large enough to support comfortable living for families, guests, or renters, yet compact enough to remain cost-effective, efficient, and easy to permit under local guidelines. This size allows for smart, open-concept designs and compact appliances that maximize every inch of space. You can enjoy a spacious kitchen, dedicated dining area, and even create multi-functional spaces—like a guest bedroom that doubles as a home office. It’s the ideal balance of livability, versatility, and value in a compact footprint.

Absolutely. The Maple’s two-bedroom, two-bath layout offers excellent rental income potential, particularly for long-term tenants. Its smart bedroom separation and open-concept design provide a comfortable living space ideal for roommates, small families, or professionals. Keep in mind, San Diego County and California state laws allow ADUs to be rented for periods of 30 days or longer only. Short-term (<30 days) rentals are prohibited.

Yes! While the Maple offers one of our most popular floor plan designs, we also provide an array of designs and custom plans to help you personalize the space to fit your specific needs. Whether you're looking to optimize the layout, expand into larger units, or select finishes that reflect your style, we’ll work with you to tailor every detail. Our team can adjust layouts to create additional living space, reconfigure rooms for functionality, or integrate custom features that support your lifestyle—ensuring your ADU project feels like a true extension of your home.

Yes — the Maple ADU is a perfect solution for multigenerational living. Its compact design includes two spacious bedrooms located on opposite ends of the unit and two full bathrooms, offering privacy and independence for extended family members such as aging parents or adult children. The layout also features a functional kitchen, open-concept living area, and smart storage—all within a comfortable living space that feels much larger than its footprint. It’s thoughtfully designed to support connection without sacrificing personal space.

The Maple floor plan features two separate bedrooms, each with access to private bathrooms—ideal for comfort and privacy. One bedroom includes a walk-in closet, offering extra storage and convenience. At the heart of the home is a common living area with an open-concept layout that connects the living, dining, and private kitchen spaces for seamless daily living. Additional highlights include in-unit laundry, thoughtful storage solutions, and a private outdoor patio—all designed to make the most of every square foot while maintaining functionality and comfort.

Definitely. The Maple Additional Dwelling Unit features a balanced layout that makes the second bedroom ideal for a variety of uses—including a dedicated home office, creative studio, or flexible guest room. Whether you're planning for full-time living or simply need a quiet secondary living space, this design adapts to your lifestyle with ease. The Maple’s versatility pairs well with a wide range of architectural styles, and its thoughtful design ensures you can enjoy privacy and productivity without sacrificing the open feel of the home.

From initial design to final move-in, the total timeline for the Maple ADU typically ranges from 9 to 12 months. By law, San Diego County must approve or deny complete ADU permit applications within 60 days, followed by construction. Timelines may vary based on site conditions, permitting processes, and customization choices. Our team manages every stage efficiently to keep your project on schedule.

Yes — adding an ADU house like the Maple can significantly boost your property's value. In the building industry, a well-designed 650–800 SqFt 2 Bedroom unit is known to increase property value by 10–20%, and in high-demand areas like San Diego, that can translate to $300,000–$500,000 in added value. Thanks to the compact layouts and adequate living space, these ADUs are especially appealing to buyers seeking rental income potential or multigenerational housing. The Maple’s design strikes the ideal balance between space and efficiency, making it a smart long-term investment for homeowners.

The comprehensive cost to build an 800 square foot accessory dwelling unit (ADU) typically ranges from $280,000 to $480,000, depending on site conditions, utility access, finishes, and design choices. This range generally includes design fees, permitting, construction, and standard interior finishes. Choosing energy-efficient or premium upgrades may increase initial costs but enhance long-term value.

An 800 square foot layout can comfortably accommodate two-bedroom plans while still providing ample living space for everyday comfort. Many well-designed ADUs in this size range include one or two bathrooms and even a master suite, offering privacy and added functionality. Thanks to smart design strategies—like open-concept layouts, built-in storage, and multi-use areas—these units maintain a thoughtful balance of style and practicality. Incorporating energy-efficient features into the design further enhances comfort and sustainability, making an 800 sq ft ADU a perfect blend of livability and efficiency.

Not quite. While a tiny home is typically under 400 sq ft, an 800 sq ft ADU size falls into the category of a compact or small home—spacious enough for 1–2 bedrooms, a full bathroom, built-in appliances, and even clever storage solutions that maximize every inch of space. With a well-designed layout, this size can offer comfortable indoor living and the flexibility of a bedroom for guests, a home office, or multigenerational use. When paired with outdoor living features like a patio or deck, an 800 sq ft ADU becomes an incredibly attractive option for homeowners seeking functionality, affordability, and long-term value—all in a manageable footprint.