Mountain Cabin Plans: 1,600 Sq Ft Story-and-a-Half with Loft and Porch

1,600 sq ft living · 3 bedrooms · 2 baths · 2 stories · 40'-8" × 27'-11"

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mountain cabin plans — dimensioned floor plan, level 1
Level 1
mountain cabin plans — dimensioned floor plan, level 2
Level 2

This story-and-a-half cabin offers 1,600 sq ft of living space on a compact 40'-8" × 27'-11" footprint. A front porch leads into a 6'-2" × 6'-8" foyer, which opens to the great room, a 10'-8" × 25'-11" space with a fireplace. The dining area (10'-0" × 9'-1") and kitchen (10'-0" × 10'-8") sit beside it, so cooking, eating and sitting share one connected run of rooms.

The main-floor bedroom (10'-0" × 13'-11") sits next to the main bath (10'-0" × 5'-5") and a laundry room (6'-2" × 5'-5"), off a short hall. This makes one-level living practical. The stair rises to the upper floor, where a loft (10'-0" × 14'-8") connects Bedroom 2 (8'-4" × 12'-11") and Bedroom 3 (8'-4" × 12'-7"), with an upper bath (10'-0" × 5'-1") nearby.

Layout highlights

  • Great room measures 10'-8" × 25'-11" and includes a fireplace.
  • Kitchen (10'-0" × 10'-8") and dining (10'-0" × 9'-1") sit next to the great room.
  • Main-floor bedroom at 10'-0" × 13'-11" is beside the main bath and laundry.
  • Upper level has two bedrooms, each 8'-4" wide, around a 10'-0" × 14'-8" loft.
  • Front porch opens to a 6'-2" × 6'-8" foyer on a 40'-8" × 27'-11" footprint.

Room sizes

RoomLevelSizeArea
Main-Floor Bedroom110'-0" × 13'-11"139 sq ft
Main Bath110'-0" × 5'-5"54 sq ft
Foyer16'-2" × 6'-8"41 sq ft
Hall16'-2" × 6'-10"42 sq ft
Laundry16'-2" × 5'-5"33 sq ft
Great Room110'-8" × 25'-11"276 sq ft
Stair110'-0" × 5'-5"54 sq ft
Dining110'-0" × 9'-1"91 sq ft
Kitchen110'-0" × 10'-8"106 sq ft
Stair210'-0" × 5'-5"54 sq ft
Bedroom 328'-4" × 12'-7"105 sq ft
Bedroom 228'-4" × 12'-11"108 sq ft
Loft210'-0" × 14'-8"147 sq ft
Upper Bath210'-0" × 5'-1"50 sq ft

Who this plan suits

This plan suits couples, families or second-home owners who want a main-floor bedroom plus extra sleeping space upstairs. It needs a lot that fits the 40'-8" × 27'-11" footprint plus local setbacks, with no garage included.

How this plan was made

It was generated in AI Architectures Plan Studio from this one-line brief: “Story-and-a-half mountain cabin, 3 bedrooms, 2 baths, great room with fireplace, kitchen, dining, main-floor bedroom; loft and 2 bedrooms upstairs, front porch, about 1,600 sq ft of living space (garage not included).” An AI architect drafted the room program, a layout solver placed every wall and door, and the plan was checked automatically for room sizes, circulation and daylight. The same project produced the PDF sheets, layered DXF, IFC model and 3D model you can download above.

Frequently asked questions

What are mountain cabin plans?

Mountain cabin plans describe compact homes with simple forms, a central gathering room, and often a porch and loft. This version has 1,600 sq ft of living space across two levels, with 3 bedrooms and 2 baths.

What affects the lot and cost of building this cabin?

The 40'-8" × 27'-11" footprint keeps the foundation and roof area modest, but site slope, foundation type, climate loads and finishes will drive cost. The lot must fit the footprint plus setbacks and a path to the front porch.

Can I change this plan by chat?

Yes. You can ask in chat to resize or reorder rooms, add a garage on the side you prefer, or adjust the plan for a narrower or wider lot. The layout is regenerated so the rooms still connect.

How do I use the PDF, DXF and IFC files?

The PDF is for review, permit discussions and sharing with builders. The DXF opens in CAD software for drafting edits, and the IFC imports into BIM tools for coordination. Have a local professional check the plans against your site and code before construction.

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