ADU Home Plan with Half Wall Between Kitchen & Living — 432 Sq Ft
This thoughtfully designed ADU delivers 432 square feet of heated space with one bedroom and one full bath. A front porch welcomes you in, and the layout is smartly configured to feel open without sacrificing privacy or definition between rooms.
Exterior & Curb Appeal
The home presents a modest, clean façade with a front porch that shelters the entry door. The design keeps proportions balanced and charming, creating a cozy cottage look that fits nicely on narrow lots. With clean siding and simple rooflines, it blends function and understated elegance.
2D Floor Plan & Interior Layout
From the front porch you step into a small foyer with a coat closet that helps keep clutter under control. The main living area is partially open to the kitchen, separated by a half wall. This wall offers visual separation while preserving conversation and flow between the spaces. The kitchen also has its own exterior access point.
The bedroom lies off the living space and is roomy for a home of this size. Direct access to the full bathroom from the bedroom helps with convenience. The bathroom includes a stacked washer/dryer to maximize usable space.
Bedrooms & Bathroom
The single bedroom offers just enough comfort, with space for sleeping and storage. The bathroom, adjacent to both the living and sleeping zones, balances privacy and access. The inclusion of laundry stacking in the bath makes functional use of every square foot.
Porch & Outdoor Living
The covered front porch acts as a welcoming outdoor room. Though compact, it adds charm and provides a sheltered entry. It helps the house feel more connected to its surroundings and gives an immediate place to pause before stepping inside.
Structure & Specifications
The home footprint is 24 feet wide by 22 feet 6 inches deep. Exterior walls are framed in 2×4. Ceiling height in main areas is 8 feet. The dinette, kitchen, and living room reach about 10 feet in height under vaulted or sloped ceiling areas. The primary roof has a pitch of 6:12, and the maximum ridge height is about 13 feet 5 inches. The plan is designed for a slab foundation.
Lifestyle & Cost
This ADU is ideal for minimal, efficient living. It supports a simple and uncluttered lifestyle while still offering full amenities. The open half-wall design fosters connectivity, and the compact layout keeps maintenance and utility costs low.
Estimated U.S. construction costs for a home of this size and style typically fall between $90,000 and $140,000 USD, depending on finishes, labor, and site specifics. With intelligent layout and welcoming character, this cottage-style ADU proves small homes can live large.
