OakEdge – 800 Sq Ft Two-Story ADU Plan

OakEdge is a stylish and efficiently planned 800 sq ft two-story ADU designed to provide full-home comfort within a compact footprint. Featuring two bedrooms, 1.5 bathrooms, and open-concept living spaces, this design blends modern architecture with practical everyday functionality. Its clean lines, flat roof, and warm wood accents give it a contemporary California feel that works equally well as a backyard ADU, a rental unit, or a second-story garage conversion.

OakEdge ADU Plan Overview

• Total Living Space: 800 sq ft.
• Bedrooms: 2 bedrooms.
• Bathrooms: 1.5 baths (full bath upstairs + powder room downstairs).
• Stories: 2 stories.
• Footprint: 20’ x 20’, efficient square layout.
• Type: Two-story ADU.
• Design Style: Modern architecture with flat roof and wood-accented façade.

Open & Flexible First Floor

The ground level prioritizes open living and seamless flow. The bright Kitchen–Dining Area transitions directly into the spacious Living Area, creating a welcoming environment ideal for entertaining or relaxing. Large windows enhance the modern, airy feel, while the layout remains highly practical. A convenient Powder Room (half bath) and smart storage zones maximize usability. This level can also be adapted for garage-conversion configurations when building above an existing structure.

Private Second Floor with Two Bedrooms

Upstairs, two well-sized Bedrooms offer privacy, comfort, and flexibility for families, guests, or rental occupants. Each bedroom includes its own dedicated Closet, ensuring ample storage. The layout balances efficiency with comfort, creating a true home-like feel within the compact ADU footprint.

Full Bathroom & Upper-Level Layout

The second floor includes a full Bathroom featuring a tub/shower combination, vanity, and modern fixtures. Its central location between the two bedrooms ensures convenience while supporting shared use. Natural light and clean design enhance the sense of openness.

Modern Design for Urban or Backyard Sites

OakEdge’s contemporary form—defined by a flat roof profile, clean geometric massing, and optional wood-accent materials—makes it well suited for urban infill lots, backyard development, or properties seeking a refined modern character. The compact two-story configuration maximizes usable living area while maintaining a minimal site footprint.

This vertical planning strategy reflects the efficiency principles applied across our small house plans, where disciplined footprints and clear structural logic allow more living space without increasing land consumption.

Customization Options

• Upgrade kitchen cabinetry, counters, or appliance package.
• Add larger windows or corner glazing for increased daylight.
• Integrate solar-ready roofing or energy-efficient HVAC options.
• Select exterior materials to match your home or neighborhood style.
• Configure ground level for garage-conversion integration.

Why Choose the OakEdge ADU Plan?

OakEdge offers exceptional livability with its modern aesthetic, efficient layout, and flexible two-story design. With two bedrooms, an open first-floor layout, and 1.5 bathrooms, it provides all the essentials of a full home—perfect for California homeowners seeking a versatile, stylish ADU floor plan that enhances property value.

Explore more 800 sq ft ADU plans or browse our full collection of California ADU designs.