1-Bed ADU Cottage Under 600 Sq Ft — Approx. 600 Sq Ft
This charming ADU has about 600 heated square feet. It’s a compact, functional cottage-style layout with one bedroom, one full bathroom, and both front and rear porches. The design is ideal for a guest house, in-law suite, or small primary residence.
Exterior & Curb Appeal
The outside feels warm and inviting. A long 30-foot front porch sets the tone, with the roof overhang offering shelter and character. The clean lines, balanced roof pitches, and window placements enhance the cottage aesthetic without fuss. The rear porch echoes the front in smaller scale, giving a connection to both sides of the site.
2D Floor Plan & Interior Layout
Walking in from the front porch, you enter directly into an open living area. This space includes a fireplace as a focal point, with the kitchen and island nearby. The layout keeps sightlines open so the living, dining, and kitchen zones feel connected. From here, doors lead to the rear porch.
The bedroom is located off the living zone, with a door into the full bathroom. That same bathroom also serves the living area. A screened porch is an optional feature off the bedroom. Beneath the home, a full basement offers potential for storage or future expansion.
Bedrooms & Bathroom
The single bedroom is sized for comfort, with easy access to the bathroom. The bathroom is placed to serve both the bedroom and common space without awkward flow. The optional screened porch off the bedroom allows extra indoor-outdoor enjoyment and flexibility.
Porch & Outdoor Living
The porches play an important role. The front porch, stretching 30 feet, gives a shaded outdoor living area and frames the entry beautifully. The rear porch lets you step out from the living area to relax, dine, or enjoy fresh air. The optional screened porch adds protection from insects while still connecting you to nature.
Structure & Specifications
The footprint is about 30 feet wide by 32 feet deep. Exterior walls are 2×4 framing. The first floor ceiling height is 8 feet. The roof uses a mix of steep (12:12) and shallower (4:12) pitches. The maximum ridge height hits around 19 feet 8 inches. A full basement under the home gives extra space for utilities or storage. The porches (front and rear) each add about 180 square feet of coverage.
Lifestyle & Cost
This ADU is built for simplicity and comfort. You have a cohesive living area, a private bedroom, and outdoor porches that expand how you live. It’s perfect for a cozy, low-maintenance lifestyle or supplementing your property with a guest dwelling.
In the U.S., estimated construction costs for a home of this type typically range from $140,000 to $200,000 USD, depending on finishes, materials, labor, and site specifics. It shows you can live well in a compact, efficient design without compromise.
