ADU House Plans

Attached ADU plans share at least one wall with your main house or connect via breezeway, offering convenient access and simplified utility connections, while detached designs are completely separate structures that provide maximum privacy and independent placement on your property. Choose attached configurations when you want easy access for caregiving or have limited lot space, and select detached when privacy, rental use, or flexible site positioning is your priority.

Studio layouts work well for single occupants, occasional guests, or home office spaces with open living and sleeping areas, while one-bedroom plans suit long-term residents who prefer traditional separation between sleeping and living zones. Two-bedroom ADU designs accommodate couples with children, provide dedicated home office space alongside sleeping quarters, or serve families needing genuine separate bedrooms for roommate or multigenerational living situations.

Look for single-story floor plans with no stairs, wide doorways and hallways that accommodate mobility aids, and bathrooms featuring curbless showers with grab bar blocking built into walls for future installation. Position the ADU close enough to your main house for easy check-ins while maintaining separate entrances, and prioritize open layouts with excellent natural lighting and level outdoor access.

Attached and detached ADU plans both adapt beautifully to work-from-home needs, offering complete separation between professional and personal life with separate entrances for clients, abundant natural light, and sound insulation from main house activity. Choose layouts with open floor plans for equipment flexibility, adequate electrical capacity for technology, and independent climate control for comfortable year-round use regardless of main house schedules.

Effective pool house ADU plans include changing areas and bathrooms serving pool activities plus complete living quarters with kitchenettes and sleeping spaces positioned for privacy from pool areas. Look for covered outdoor spaces connecting pool and living zones, durable moisture-resistant materials, and layouts that function year-round for guest accommodations even when pool features aren’t in use.

Strategic window placement avoiding direct sightlines between units, sound insulation in shared walls for attached configurations, and thoughtful landscaping creating visual buffers all contribute to comfortable privacy for both households. Design separate outdoor living areas for each unit, position entries away from main house windows, and consider how both structures’ window locations relate to each other during the planning phase.