Dallan Construction Inc

ADU House Plans from Dallan Construction Inc

Dallan Construction Inc offers a selection of thoughtfully designed accessory dwelling unit plans suited for a range of needs — whether that's generating rental income, accommodating multigenerational living, or providing a private space for guests. Each plan is designed to make practical use of its footprint while maintaining comfortable, livable interiors.

Below is an overview of the ADU floor plans currently available through Dallan Construction Inc.

Cedar Creek — 843 Sq Ft

The Cedar Creek is a Craftsman-style ADU that offers one bedroom within an 843 sq ft layout. The great room features cathedral ceilings and connects directly to the dining area and kitchen, creating an open and functional living space. The bedroom includes 10-foot ceilings, and outdoor living is supported by both a covered patio and an open patio.

1. Great Room with cathedral ceiling (15'4" × 13'4")
2. Dining area with cathedral ceiling (10'6" × 9'7")
3. Kitchen with cathedral ceiling and pantry (12'11" × 9'7")
4. Bedroom with 10' ceiling (13'0" × 11'8")
5. Full bath (10'1" × 5'0")
6. Stacked washer/dryer included
7. Covered patio (8'0" × 7'0") and open patio (16'0" × 5'0")
8. Mechanical room

Cobalt Creek — 658 Sq Ft

The Cobalt Creek fits two private bedrooms into a 658 sq ft single-story plan. The exterior features Rustic Craftsman detailing including exposed beam porch structure and board-and-batten siding. Inside, the open kitchen and living room share cathedral ceilings, keeping the space feeling larger than its footprint suggests. A 26-foot covered patio provides substantial outdoor living space.

1. Bedroom 1 with cathedral ceiling (9'10" × 10'1")
2. Bedroom 2 with cathedral ceiling (9'10" × 10'1")
3. Full bath (5'0" × 8'8")
4. Open kitchen with cathedral ceiling and pantry (12'8" × 12'7")
5. Living room with cathedral ceiling (12'8" × 12'7")
6. Covered patio (26'0" × 10'0") with cathedral ceiling
7. Mechanical room

Compact and Cottage-Style ADU Options

Fairview Cottage — 651 Sq Ft

The Fairview Cottage is a one-bedroom ADU with a modern farmhouse exterior — white siding, black window frames, and a covered front porch. At 651 sq ft, the layout includes a great room with cathedral ceilings, a bright kitchen, a private bedroom, and a full bath. Practical details like a drop zone entry, linen closet, and stacked washer/dryer are included. This plan is well-suited as a backyard cottage, in-law suite, or rental unit.

1. Great Room with cathedral ceiling (15'5" × 12'6")
2. Kitchen with cathedral ceiling (8'6" × 12'6")
3. Bedroom (10'9" × 10'6")
4. Full bath (5'0" × 8'7")
5. Entry with drop zone and linen closet
6. Stacked washer/dryer
7. Covered front porch (16'0" × 5'0")
8. Mechanical room

Grady — 866 Sq Ft

The Grady is the largest plan in the lineup at 866 sq ft, offering two full bedrooms and a layout that functions as a complete standalone unit. It includes a separate living room, dining area, full kitchen, and an in-unit laundry room — features that make it a practical option for long-term tenants or family members. A covered front porch adds outdoor space and contributes to street presence.

1. Living Room (15'8" × 10'4")
2. Dining area (8'6" × 9'7")
3. Kitchen (11'0" × 8'6")
4. Bedroom 1 (12'0" × 12'0")
5. Bedroom 2 (12'0" × 10'0")
6. Full bath with tub (10'5" × 5'9")
7. In-unit laundry room (5'8" × 6'0")
8. Covered front porch (11'0" × 5'0")
9. Entry (4'8" × 8'6")
10. Mechanical room

Working with Dallan Construction Inc as Your ADU Builder

Dallan Construction Inc provides these ADU plans as part of their work as an ADU contractor and accessory dwelling unit builder. Their plans range from compact single-bedroom granny flats to larger two-bedroom detached ADU options, covering a variety of use cases and property types. Each design reflects attention to livability, storage, and outdoor access — practical considerations for anyone looking to add a functional dwelling unit to their property.