The Rowan ADU Plan

The Rowan ADU Plan

A modern one-bedroom ADU plan with a dedicated study, open-concept kitchen and living area, walk-in closet, full laundry room, and spacious bathroom—all within an efficient 22-foot-wide, single-story footprint.

The Rowan ADU Plan is a modern one-bedroom, one-bath accessory dwelling unit designed for backyard development, small lots, and urban infill sites. Its compact 21'-11" wide footprint combines comfortable single-level living with a simple building form that is practical to construct and adaptable to a variety of properties.

At the front of the home, the open-concept kitchen and living room create a spacious central gathering area. A large kitchen island provides additional prep space, storage, and seating while maintaining an open connection to the living area.

A dedicated study or home office adds valuable flexible space for working from home, hobbies, reading, or occasional guests. The private bedroom is paired with a generous walk-in closet, while the full bathroom features a large shower and double vanity. A separate laundry room keeps household utilities conveniently organized and out of the main living space.

The exterior is defined by a simple gable roof, vertical siding, recessed entry, and clean contemporary detailing. The result is a restrained modern cottage / modern farmhouse design that works equally well as a backyard ADU, guest house, rental property, downsizing residence, or compact primary home.

 What's Included in This Plan Set

• Architectural Construction Details — Typical wall, roof, floor, foundation, eave, opening, flashing, and other construction details necessary to communicate the design and intended construction.
• Structural Foundation Plan — Foundation layout showing footings, foundation walls, slabs, posts, beams, and other primary structural components.
• Structural Framing Plans — Floor and roof framing information showing joists, rafters, beams, headers, posts, bearing locations, and other structural framing elements.
• Structural Details — Typical structural connections, framing conditions, foundation details, and other information necessary to support construction and permit review.
• Schematic Electrical Plan — Electrical layout showing typical lighting, switches, receptacles, smoke and carbon monoxide alarms, and other common residential electrical locations for permitting and coordination.
• Site Plan Template — A blank site plan diagram sized for the intended lot configuration. Your local surveyor, designer, architect, or civil engineer can use the template to add property lines, setbacks, utilities, topography, driveway locations, and other site-specific information.
• General Construction Notes — Typical construction requirements, material references, installation standards, and code-related notes applicable to the building.
• Energy Compliance Notes — General energy-efficiency requirements and construction notes intended to assist with compliance in many U.S. jurisdictions. Project-specific energy calculations or local compliance documentation may still be required.
• Life-Safety and Code Information — Typical residential code information addressing items such as egress, safety glazing, smoke alarms, carbon monoxide alarms, guards, handrails, and other common code requirements where applicable.
• Door and Window Information — Sizes, types, locations, and related information necessary for coordination and construction, where included in the plan design.
• Drawing Organization — Drawings are professionally organized into a coordinated architectural and structural plan set suitable as the basis for local permit submission. Information will need to be added to meet local compliance.
• Print-Quality PDF Files — High-resolution PDF drawings formatted on 24" × 36" sheets, a standard architectural sheet size accepted by most e-permitting systems and print shops and commonly used for residential permit submissions.
• Immediate Digital Delivery — PDF files are available for download immediately after checkout so you can begin reviewing, pricing, printing, or preparing your project for permitting.