2100 Sq Ft House Plans: Single-Story 4-Bedroom with Office and Mudroom

2,101 sq ft living · 4 bedrooms · 2.5 baths · 1 story · garage · 47'-3" × 55'-5"

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2100 sq ft house plans — dimensioned floor plan

This single-story plan has 2,100 sq ft of living space, not counting the 19'-2" × 19'-2" two-car garage. The footprint is 47'-3" × 55'-5". A front porch opens to a 4'-5" × 16'-10" foyer. The living room (19'-7" × 17'-2"), kitchen (10'-4" × 14'-4") and dining room (9'-6" × 13'-3") share one open gathering area.

A 26'-2" bedroom hall serves Bedrooms 2, 3 and 4 and the hall bath. The primary suite has a 10'-9" × 19'-2" bedroom, a 5'-2" × 9'-8" walk-in closet and an 8'-6" × 11'-1" bath. A 9'-0" × 9'-0" office, a powder room, the laundry (4'-6" × 11'-1") and a 10'-4" × 5'-6" mudroom handle daily routines near the garage entry. Everything is on one level, so there are no stairs between the bedrooms and the living areas.

Layout highlights

  • Open living room at 19'-7" × 17'-2" shares space with the kitchen and dining room.
  • Kitchen measures 10'-4" × 14'-4", next to a 9'-6" × 13'-3" dining room.
  • Primary suite combines a 10'-9" × 19'-2" bedroom, walk-in closet and 8'-6" × 11'-1" bath.
  • Three secondary bedrooms, each 9'-0" wide, open off a 26'-2" bedroom hall.
  • Mudroom, laundry and a 9'-0" × 9'-0" office sit apart from the bedroom hall.

Room sizes

RoomSizeArea
Dining9'-6" × 13'-3"126 sq ft
Kitchen10'-4" × 14'-4"148 sq ft
Mudroom10'-4" × 5'-6"57 sq ft
Living Room19'-7" × 17'-2"337 sq ft
Laundry4'-6" × 11'-1"50 sq ft
Primary Bath8'-6" × 11'-1"94 sq ft
Hall Bath5'-10" × 11'-1"65 sq ft
2-Car Garage19'-2" × 19'-2"367 sq ft
Primary Bedroom10'-9" × 19'-2"206 sq ft
Foyer4'-5" × 16'-10"74 sq ft
Bedroom Hall5'-2" × 26'-2"136 sq ft
Walk-in Closet5'-2" × 9'-8"50 sq ft
Office9'-0" × 9'-0"81 sq ft
Powder Room9'-0" × 3'-7"32 sq ft
Bedroom 39'-0" × 13'-1"117 sq ft
Bedroom 49'-0" × 12'-9"114 sq ft
Bedroom 29'-0" × 13'-7"122 sq ft

Who this plan suits

This plan suits households that want four bedrooms and a home office on one level, with a mudroom for daily garage entry. It needs a lot wide enough for a 47'-3" × 55'-5" footprint plus setbacks, with the porch and garage facing the street.

How this plan was made

It was generated in AI Architectures Plan Studio from this one-line brief: “Single-story house, 4 bedrooms, 2.5 baths, open kitchen, dining and living, laundry, office, mudroom, attached 2-car garage, front porch, about 2,100 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 2100 sq ft house plans?

They are home designs with about 2,100 sq ft of heated living space, usually not counting the garage or porch. This version is a single-story layout with 4 bedrooms and 2.5 baths. The two-car garage is measured separately.

What affects the lot and building cost of this plan?

The 47'-3" × 55'-5" footprint sets the minimum lot width and depth once setbacks are added. Cost depends on your region, foundation type, finishes and site work. Because the plan is one story, the roof and foundation cover the whole footprint.

Can I change this plan by chat?

Yes. You can describe changes in chat, such as resizing rooms, switching the garage to the other side, or fitting a narrower lot. The layout is then updated to match your request.

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

The PDF is for reviewing the plan and sharing it with builders or lenders. The DXF opens in CAD software for drafting and edits. The IFC loads into BIM tools so you can check the model in 3D.

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