Poland’s Mini Domy has been quietly refining the tiny home formula across several designs, and the Mini House 300 x 600 might be their most focused yet. It doesn’t try to do everything. It tries to do the essentials well, and that clarity of intent is exactly what makes it compelling. At 247.5 square feet, it’s built for a couple who want to downsize without making every day feel like an exercise in spatial compromise.
The home rides on a double-axle trailer, measuring 20 feet long and 9.8 feet wide. That extra width is the defining design choice here. Most tiny homes are corridor-thin by necessity, and while that works for solo living, it creates a kind of perpetual negotiation of space when two people call it home. The 300 x 600 sidesteps that problem entirely. The 9.8-foot width means a towing permit is required on public roads, but the interior breathing room that results from it makes the trade-off easy to rationalize.
Designer: Mini Domy
The exterior pairs metal cladding with timber accents, a restrained combination that reads more European cabin than American trailer, and sits comfortably against a forest clearing or a field edge. Large glass sliding doors provide the main entry point, drawing in natural light and forging a strong visual connection between the interior and the outdoors. Inside, walls finished in white-painted tongue-and-groove paneling keep the space feeling light and warm without relying on tricks.
The open plan arranges the living area and kitchen side by side. The living room comes unfurnished, but there’s clearly room for a sofa and a media unit, along with a wall-mounted mini-split air conditioning unit already in place. The kitchen is deliberately uncomplicated: an induction cooktop, a sink, upper and lower cabinetry, and flex space for additional appliances. A wooden barn-style sliding door leads from the kitchen to the bathroom, which contains a glass-enclosed shower, a sink, and a flushing toilet. Small, but resolved.
A storage-integrated staircase leads up to the loft bedroom, and it’s one of the more considered details in the whole design. In a home this size, every structural element should carry more than one purpose, and the staircase earns its footprint. The bedroom itself is carpeted, fits a double bed comfortably, and includes built-in cabinetry along both sides for storage, keeping the space genuinely usable rather than merely sleepable.
Pricing isn’t publicly listed, and Mini Domy asks prospective buyers to contact them directly for a quote. That’s standard practice for a manufacturer working across custom specifications and varying delivery requirements. For a couple who’ve spent any amount of time sketching out a simpler life, the 300 x 600 seems like it’s worth the conversation.
