By Courtney Pittman
If you’re in the market for an accessory dwelling unit, look no further than these ADU house plans. With up-to-date features like open island kitchens and flexible areas, these petite plans make the most of their modest square footage. Here are eight designs with must-see style and clever layouts to match.
Charming Cottage Plan
Charming Cottage Plan - Front Exterior
Charming Cottage Plan - Main Level
Clocking in at 600 square feet, this charming cottage plan packs a punch with plenty of outdoor living space – including a screened porch. The interior feels spacious and modern, thanks to the open layout between the main living areas. In the U-shaped kitchen, a raised bar overlooks the living room, where a fireplace takes center stage.
Two closets highlight the bedroom suite. A bonus room offers versatility. Front and rear porches provide shaded comfort.
Narrow ADU Plan
Narrow ADU Plan - Front Exterior
Narrow ADU Plan - Main Level
Just 18 feet wide, this ADU house plan would work well on a narrow lot. The lovely exterior features a covered front porch and a gable roof. Inside, the vaulted living room and the kitchen share one open space.
Located at the back of the plan, the bedroom suite is fully equipped with a walk-in closet and a big shower. The laundry room waits conveniently close by.
Contemporary Bungalow Plan
Contemporary Bungalow Plan - Front Exterior
Contemporary Bungalow Plan - Main Level
Contemporary Bungalow Plan - Upper Level
This contemporary bungalow plan shows off sleek curb appeal with a metal gable roof. The four-corner footprint makes this an affordable option. Inside, the open floor plan maximises space.
The bedroom keeps you organized with a spacious closet. A loft opens up all kinds of possibilities. Nice weather? Unwind on the generous deck out front or the smaller one at the back of the plan.
Budget-Friendly ADU Plan
Budget-Friendly ADU Plan - Front Exterior
Budget-Friendly ADU Plan - Main Level
This budget-friendly ADU house plan lives larger than its small footprint (600 square feet). In the kitchen, a desk provides space to work. Nearby, a covered patio invites you outside.
A sizable shower highlights the bathroom. Storage options include multiple closets and shelf storage.
Large Patio
Large Patio - Front Exterior
Large Patio - Main Level
Here’s a Craftsman bungalow plan that proves less is more. For example, three sets of sliding glass doors open to a large patio, encouraging seamless indoor/outdoor living. The efficient floor plan places the living room and the L-shaped kitchen in one open space. Two bedrooms sit on opposite ends of the design.
Two-Bedroom ADU House Plan
Two-Bedroom ADU House Plan - Front Exterior
Two-Bedroom ADU House Plan - Main Level
This modern ADU house plan stands out with a welcoming front porch and a gable roof. The U-shaped kitchen flows effortlessly into the airy living room. A generous pantry keeps groceries organized.
Two bedrooms share a full hall bath at the back of the plan (one with a walk-in closet). The linen closet is a welcome detail.
Modern Garage Apartment Plan
Modern Garage Apartment Plan - Front Exterior
Modern Garage Apartment Plan - Main Level
Modern Garage Apartment Plan - Upper Level
Looking to add a smart addition to your property? Take a look at this garage apartment plan. The first level hosts a two-car garage with a dedicated workshop.
In the entry, a bench and lockers keep items tidy. Upstairs, a kitchen island serves the great room. We love the cathedral ceiling. The bedroom suite gives you a big walk-in closet and two sinks. Don’t miss the office nook and the covered deck.
Wraparound Deck
Wraparound Deck - Front Exterior
Wraparound Deck - Main Level
This modern 660-square-foot ADU house plan seems much larger thanks to its breezy layout. A small island in the kitchen delivers functionality and overlooks the dining area and the living room. Three sets of sliding glass doors open to the wraparound deck for easy indoor/outdoor connections. A bedroom, a hall bath, and a laundry room complete this design.
