Adu 317 is a compact two-story carriage house plan providing 604 square feet of total heated living area. Designed with a 26-foot width and 28-foot depth, this structure optimizes vertical space by placing the primary living quarters above a 604 square foot, two-car garage. The footprint allows for versatile placement on smaller lots, functioning as a standalone accessory dwelling unit, rental income property, or private studio.

The interior layout concentrates living functions on the second level, which includes a kitchen, a keeping room, a laundry area, and a private master suite. By elevating the living space, the design maintains separation from the ground-floor vehicle storage while ensuring that all 604 square feet of upper-level area are utilized efficiently. A single full bathroom serves the upper level, maintaining a clean and accessible floor plan configuration.

Technical specifications define the vertical profile, featuring 9-foot ceilings on the first floor and 8-foot ceiling heights on the second floor. The structure utilizes 2x4 exterior wall framing and stick roof construction to ensure structural rigidity. A steep 10:12 roof pitch contributes to the overall building height of 22 feet 8 inches, providing a traditional aesthetic while facilitating effective water runoff.

The integration of a 604 square foot garage provides significant utility for storage or vehicle protection, minimizing the total site footprint required for parking. This carriage house configuration addresses the demand for multi-functional structures, combining secure vehicle storage with a self-contained, high-ceiling living environment that maximizes the utility of a 604-square-foot floor plate.

Key Features: 604 sq ft living area, 2-car garage, 1 bedroom, 1 bathroom, carriage house style, 10:12 roof pitch, 9-foot first-floor ceilings, 8-foot second-floor ceilings, 2x4 wall framing, accessory dwelling unit.

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