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Looking for a tiny house floor plan with everything you actually need?
The TMS-010-CF1 from TM Studio-Small House Design is a smart and highly efficient 399 sq. ft. one-bedroom tiny house plan created for comfortable everyday living. Within its simple 20′ x 20′ footprint, this home includes a private bedroom, full bathroom, complete kitchen, dining space, living room, laundry area, and an expansive 322 sq. ft. wraparound deck.
The result is a small house that feels much more complete than its square footage suggests.
This design is especially well suited for buyers searching for a small cottage plan, tiny cabin floor plan, retirement house, guest house, vacation home, or compact full-time residence.
A Compact 20′ x 20′ Footprint with No Wasted Space:-
The TMS-010-CF1 measures 20 feet wide by 20 feet deep, creating a straightforward and efficient building footprint.
The conditioned first-floor area is 399 sq. ft., while the attached deck adds another 322 sq. ft. of unconditioned outdoor space. Together, the indoor and outdoor areas create a lifestyle that feels far more generous than a typical tiny home.
The floor plan avoids long hallways and unnecessary circulation areas. Instead, the rooms connect naturally, allowing nearly every part of the home to serve a practical purpose.
Bright 80 Sq. Ft. Living Room
The living room measures approximately 7′-9″ x 9′-0″, providing 80 sq. ft. of comfortable everyday living space.
Positioned near the main entrance and directly connected to the kitchen and dining area, the living room creates an easy, open flow through the center of the home. The layout provides space for comfortable seating, a television or entertainment wall, and built-in storage.
The nearby exterior access also strengthens the connection between the indoor living space and the large wraparound deck.
Full Kitchen and Dining Space in 121 Sq. Ft.
For a home under 400 sq. ft., the kitchen is impressively complete.
The combined kitchen and dining area measures approximately 13′-0″ x 10′-0″, providing 121 sq. ft. of functional space. The kitchen layout includes designated locations for a:
- Refrigerator
- Range
- Kitchen sink
- Dishwasher
- Cabinetry and countertop workspace
A four-person dining table fits within the same area, making this compact home suitable for everyday meals, entertaining a few guests, or working from home.
The open connection between the kitchen, dining, and living areas helps the interior feel more spacious while keeping the floor plan practical.
Private 97 Sq. Ft. Bedroom
The TMS-010-CF1 includes one dedicated bedroom measuring approximately 8′-11″ x 10′-11″.
With 97 sq. ft. of bedroom space, the room provides a true private sleeping area rather than relying on a loft or convertible living room. This single-level arrangement may be especially appealing to retirees, couples, solo homeowners, and buyers who prefer to avoid ladders or loft stairs.
A True Full Bathroom with a Bathtub
The 44 sq. ft. full bathroom measures approximately 5′-8″ x 7′-9″ and includes a bathtub/shower, toilet, and vanity.
This is an important advantage for buyers who want the efficiency of a tiny home without sacrificing the everyday comfort of a conventional full bathroom.
A dedicated washer/dryer location is positioned directly beside the bathroom, giving the home convenient in-house laundry within the compact footprint.
322 Sq. Ft. of Outdoor Living Space
The expansive deck is one of the defining features of this tiny house plan.
Measuring approximately 8′-8″ x 25′-0″, the deck provides 322 sq. ft. of outdoor living area—nearly as much space as the conditioned interior itself.
There is room for multiple outdoor zones, including a dining table, lounge seating, plants, and a quiet morning coffee area. For a wooded property, mountain setting, lake lot, or rural retreat, this outdoor space can become a major part of everyday living.
The deck also gives the home a warm cottage character and helps a compact 399 sq. ft. floor plan feel significantly larger.
Designed for Efficient Heating and Cooling
The TMS-010-CF1 is designed with a high-efficiency ductless mini-split system.
By eliminating the need for a traditional mechanical closet, the design preserves more interior space for living and storage. A ductless mini-split can also provide a simple and cost-effective heating and cooling solution for a home of this size.
For added flexibility, a central ducted HVAC system may also be used, depending on homeowner preference, builder recommendations, local climate, and project requirements.
Tankless Water Heater for Additional Space Efficiency
The plan shows a tankless water heater mounted on an exterior wall, helping preserve valuable interior floor space.
An indoor installation may also be possible as an alternative, subject to local building codes and manufacturer requirements.
Build Small Without Giving Up the Essentials
The TMS-010-CF1 by TM Studio-Small House Design combines a compact 399 sq. ft. interior with a remarkable 322 sq. ft. deck, creating a home designed around both efficient indoor living and generous outdoor enjoyment.
Its simple 20′ x 20′ footprint, private bedroom, full bathroom, complete kitchen, laundry area, high-efficiency mini-split design, crawlspace foundation, and 9-foot ceilings make it a thoughtfully planned option for buyers who want to live smaller—without making everyday life feel incomplete.
If your goal is a tiny house with everything you need, the TMS-010-CF1 delivers an impressive amount of comfort in a remarkably small footprint.
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