25'x22' Modern Cottage Floor Plan, 1 Bed / 1 Bath, 550 sq ft

This 25' x 22' modern cottage floor plan delivers 550 sq ft of open, light-filled living space in a single story, built around a full-width covered porch and a 13-foot wall of glass that makes a small footprint feel considerably larger than its dimensions suggest. It is a one-bedroom, one-bath design with a clean gable roofline, black corrugated metal roofing, and vertical siding with warm wood trim, drawn as a complete working drawing set and delivered as an instant download.

Step through the sliding glass door and the living area opens up at 7'9" x 15'0", running the full depth of the east side of the home with windows on two walls. The kitchen sits at 6'9" x 6'8" with an island that seats three, positioned so the cook stays part of the conversation rather than tucked behind a wall. The master bedroom measures 10'3" x 10'2" and comfortably fits a queen bed with room to walk both sides, and it connects directly to a 5'6" x 4'4" walk-in closet, which is unusual to find in a home this size. The bathroom is 6'0" x 4'5" with a walk-in shower, sink, and toilet laid out to code clearances, and a separate 4'0" x 4'10" laundry alcove holds a side-by-side washer and dryer so neither one steals space from the bath. Outside, the covered porch runs the full 25-foot width at 6'6" deep, roughly 162 sq ft of shaded outdoor room.

Construction is conventional wood framing that any builder can price and execute. Exterior walls are 2x6 studs with batt insulation over 7/16" sheathing, housewrap, and a vented rain-screen siding assembly. The floor system uses 2x10 joists on 2x6 treated sill plates over a slab layout with pier footings and load-bearing wall positions detailed on their own sheet. The roof is framed with 2x10 and 2x6 rafters carrying corrugated metal panels, with five insulated roof assembly options drawn so you can match your climate zone. Interior opening height is 9 feet, with the ridge reaching 16'2" and a clerestory band bringing daylight deep into the plan.

The scale makes this plan a strong fit for a backyard ADU or granny flat, a short-term rental cabin, a guest house or in-law suite on an existing property, or a first build for a downsizer or owner-builder who wants a real one-bedroom home rather than a converted studio. Estimated build cost runs roughly $130 to $220 per heated square foot depending on region and finishes.

These drawings are prepared to California residential code and are not sealed or engineered for other jurisdictions. They do not meet earthquake seismic or hurricane wind requirements, and many building departments require review and stamping by a licensed local engineer or architect before permitting. Please confirm requirements with your local building official before purchase and before starting construction.