Model B at Wolf Industries – 300 Sq Ft Tiny House for Sale in Battle Ground, Washington

The Wolf Industries Model B is the smallest unit in the company's catalog and an excellent choice for small lots and dense urban environments. At 300 square feet with exterior dimensions of 10 feet by 30 feet, this one-bedroom, one-full-bathroom modular ADU delivers the comfort and quality of a traditional dwelling with a fraction of the footprint. Starting at $67,500 for the home only, the Model B is permit-ready with real construction—not a recreational trailer or park model without residential-grade systems.

Inside, the Model B includes an 87-square-foot bedroom sized for a queen bed, a spacious kitchen prepped for standard appliances, and a full-size bathroom. Like other Wolf models, it comes standard with HVAC, an electric water heater, vaulted ceilings, granite or quartz countertops, and a dedicated full living room. Buyers may choose a gable or shed roof and optional ADA-friendly modifications to improve accessibility.

Built in Wolf's Battle Ground, Washington factory, the Model B uses 2×6 construction with laminated veneer lumber for rigidity, PEX plumbing, Romex electrical, exterior spray-in insulation, and staged inspections aligned with IRC and IBC codes. Exterior finishes include durable fiber cement siding options, solid-core doors, and high-efficiency double-pane windows with careful flashing and caulking for long-term weather protection.

Wolf states the Model B is permittable only in the City of Portland, Oregon jurisdiction—a critical eligibility requirement for buyers outside that area. The listed starting price excludes delivery, installation, permitting, utility fees, and sitework, which are quoted separately based on your property. For eligible Oregon and Washington customers, Wolf offers turn-key permitting, production, delivery, and setup. Factory production typically completes in three to four weeks once permits are issued, with overall project timelines varying by jurisdiction.

Whether you need a backyard rental, guest suite, or compact primary dwelling on a constrained lot, the Model B represents Wolf's most footprint-efficient path into modular living. Schedule a free property evaluation or factory tour to confirm permit eligibility, review the Options Book, and receive a comprehensive proposal for your site.