1 Bed 1 Bath Micro Steel Cabin ADU Plan with Loft - 512 sqft
Small footprint, big possibilities. The Micro Steel Cabin is a 512 sqft ADU house plan designed for flexible, modern small living — a rental unit, guest space, backyard studio, or garden cabin that does a lot with a little. It comfortably fits two adults (with room for children), and packs a living area, kitchenette, full bathroom, bedroom, and a ladder-access loft into one efficient, stylish building.
Despite the compact size, the cabin feels surprisingly roomy thanks to vaulted ceilings and a flood of natural light — large windows, a sliding glass door in the living area, and French doors in the bedroom. The bathroom fits a shower/tub combo, sink, and toilet, while the kitchenette covers everyday cooking. The loft adds a bonus sleeping or storage perch overhead. As far as tiny house floor plans with loft go, this one earns every square foot.
The exterior makes a statement with black vertical metal siding and a sleek standing-seam roof at a steep 10:12 pitch. Under the skin it's straightforward: standard 2x6 framing and a simple rafter roof system, which makes it a favorite for DIY builders. It's a code-friendly modern ADU in many regions, including California — a stylish, cost-effective way to add living space.
Homeowners and investors shopping ADU house plans, tiny house floor plans, or 1 bedroom house plans who want a compact, rentable, or guest-ready unit — and DIY builders looking for a buildable, affordable small home or backyard cabin.
Want an ADU over a garage? See the 1 bed garage apartment plan. Prefer a standalone cabin? Check the 1 bed vacation cabin plan. Need an ADU attached to a full home? Explore the twin barndominium with ADU.
A living area, a kitchenette, a full bathroom with a shower/tub combo, a bedroom, and a ladder-access loft — enough for two adults plus children, all in 512 sqft.
Yes. A loft accessed by ladder adds a flexible space overhead for sleeping or storage, made possible by the cabin's vaulted ceilings.
Absolutely. With its own kitchenette and full bath, it works as an accessory dwelling unit (ADU), a rental, a guest suite, a home office, or a backyard/garden cabin.
Yes. It's built with standard 2x6 framing and a simple rafter roof system, making it approachable for DIY builders, and it's a code-friendly modern ADU in many regions, including California.
The Study Plans Package is a preliminary set for reviewing the design and getting early build estimates. The Building Plans Package is the full, detailed construction set your builder uses to permit and build.
Generally, our customers receive quotes in line with local average construction costs, ranging between $250 - $600 per sqft, depending on location, finishes, and site conditions. For a more accurate and detailed estimate, we recommend purchasing the study set and sharing it with your preferred builder.
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See the Study Plans Detailed - Click Here
The Study Plans Includes:
• 9 - 15 sheets of Digital PDF Format Drawings
• Floorplans
• Exterior Elevations
• Building Sections
• Kitchen and Bathroom elevations
• Kitchen Cabinet chart
• Wall details with materials
* Easy upgrade. We will deduct the study set payment when you purchase the building plans.
Designed to help you take the first step toward building your green home, the drawing pack contains everything you need to make informed choices about your home. The drawing pack comes in a digital PDF file and includes 15 sheets of architectural drawings with detailed dimensions. This set can be used to get an exact cost estimate and inquire about the local permit process.
Note * The study set does not grant a license to the user to build the house using these plans. It is intended as a general inquiry and guide.
See the Building Plans Detailed - Click Here
The Building Plans Package Includes:
• 17 - 30 sheets of Digital PDF Format Drawings + CAD and 3D Files
• Wall types with materials
• Floor plan
• Roof Plan
• Foundation Plan
• Truss Plan
• Deck Framing Plan
• Exterior Elevations
• Building Sections
• Wall Details and Eaves Details
• Windows and Doors Schedule
• All Interior Elevations
• Cabinet Schedule
• HVAC and Faucet Plumbing Plan
• Duct Plan
• Electrical Plan
• Foundations details
When it comes to building your dream home, there is one thing that should always be on the agenda: obtaining a set of quality drawings. Our package includes details and CAD and 3D files to collaborate with your local designer, engineer, specialty consultants, and builder. Our design team also offers design edits in-house if needed.
The blueprint package includes 26 sheets of drawings and information! With our blueprint package, you can get bids from contractors, have your plans prepared and stamped by a local engineer, and apply for a building permit with your local code enforcement office. Our package lets you break ground as soon as possible, streamlining the building process and turning your dream home into a reality.
All orders are delivered digitally and automatically upon purchase. You will receive a download link directly to your email inbox within minutes of completing your order.
If you haven't received your download link within 24 hours, please contact us at hello@designwithfrank.com and we'll be happy to help.
No Physical Copies
All plan sets are digital files only — no physical prints are shipped. Files are formatted to standard architectural paper sizes and can be printed at any local print shop, Staples, or FedEx Office location.
Due to the nature of digital products, all sales are final. We do not offer returns or refunds on downloaded files.
However, we understand that projects don't always move forward — zoning restrictions, permitting issues, or other unforeseen circumstances can arise. In rare cases, we may offer a store credit or partial refund at our discretion. To request a review, please contact us at hello@designwithfrank.com within 30 days of purchase with a brief explanation of your situation.
All refund requests are reviewed on a case-by-case basis and are not guaranteed.
Need to make changes and adapt the plans to your site and vision?
Our professional design team can provide customization services for our existing floorplans. We also provide comprehensive residential design service from design to build. We will provide a free price quote within 1 to 3 business days.
Our blueprint package includes CAD and 3D model files, allowing you to work with a local designer to customize the floor plan according to your preferences and site conditions.
Additionally, we have an in-house design team that can provide minor design customization services. To request customization, please submit your requirements via this link, and we will respond with a quote and estimated time frame.
Yes, the exterior materials can be adjusted according to your preferences in consultation with your local builder. Our drawings focus on the dimensions of the building, allowing for flexibility to change exterior materials and accommodate different thicknesses.
The study set is intended for early-stage planning, such as obtaining quotes, searching for land, and consulting with local builders and permitting authorities. However, the study set cannot be used for actual construction, and we do not grant a license to build our designs with a study set.
The building plans, on the other hand, is designed for obtaining detailed cost estimates, building permits, and actual construction. It includes comprehensive building details and a material list, simplifying the building process and permitting procedures. The building plans package comes with a single building license.
Our designs adhere to the International Residential Code (IRC) standards at a federal level. We have optimized our homes for insulation appropriate for a wide range of climates. While our customers have secured building permits in over 21 states, local county specifications can differ. We advise consulting with your local building department to ensure all requirements specific to your area are met.
You are granted a single-use building license when you purchase a blueprint package. This license permits you to build one home using the provided plans. Please note that the plans are copyrighted, and any unauthorized reproduction, modification, or reuse is prohibited.
As for stamps, our plans are not pre-stamped by an engineer or architect. This is because local requirements vary, and you may need to have the plans reviewed and stamped by a licensed professional in your jurisdiction. It is essential to consult your local building department to determine if a stamp is required and to ensure the plans comply with local regulations.
