Want to Build an ADU? Here’s Your One-Stop Shop

For homeowners considering building an accessory dwelling unit (ADU) for rental income or to expand family-living space, American Helical is your ADU one-stop shop.

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6 Steps to Build your ADU, from Consultation to Completion

As your general contractor, American Helical provides an end-to end solution to help homeowners confidently build accessory dwelling units (ADUs). A general contractor from consultation to project completion gives you the confidence and efficiency for a quality, lasting result that is budget-friendly.

1) Free Consultation

Start with a free consultation, estimate, and resources to make an informed decision about building an ADU within your budget, needs, and timeline. Contact us today to get started.

2) ADU Planning and Design

Building an ADU with American Helical includes personalized planning and design. We offer pre-designs ADU models, pre-approved designs, and custom ADU concepts created with an Architectural Designer. We ensure your ADU plan includes site-specific considerations important through permitting and inspections. Learn more about pre-designs here.

3) ADU Permitting

Once your ADU design is complete, we’ll steward your ADU plans through your local city or county review process to secure approval and permits.

4) ADU Construction

Once permits are approved, our team will begin building your ADU. American Helical is a 3rd-generation builder and general contractor with an experienced, full-time crew. Learn more about American Helical’s experience and team.

5) ADU Inspection

Inspections are required at multiple stages through ADU construction. We are experienced at delivering the quality and precision home inspectors require for approval - across all stages of building your ADU.

6) Completion

Budget-friendly, high-quality interior decoration, from classic to trending, can be included in your ADU One-Stop Shop project so that your ADU is convenient and complete when we pack up our tools on the last day.

“From start to finish, their team was professional, knowledgeable, and always kept us in the loop… The quality of work and attention to detail were outstanding.”

— Jessica M., Hilmar CA

5 Pre-Designed ADU Models

Pre-designed ADU models created by an Architectural Designers take key permitting requirements into consideration. Use ADU pre-designs as a starting point for planning and consultation. Call today for a free consultation.

Architectural design including three house elevations, a floor plan, and four different colored house renderings with surrounding trees and lawn, labeled as a single-bedroom, one-bath home.

1 BED / 1 BATH, 520 SQ. FT.
PRE-DESIGNED ADU MODEL

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Floor plan and elevations of a one-bedroom ADU with living room, kitchen, bedroom, bathroom, and utility areas.

1 BED / 1 BATH, 560 SQ. FT.
PRE-DESIGNED ADU MODEL

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Architectural floor plan of a one-bedroom ADU house with labeled rooms: kitchen, bath, living, and bedroom, alongside three exterior elevation renderings showing different angles of the small, modern-style house with a sloped roof and surrounding greenery.

1 BED / 1 BATH, 565 SQ. FT.
PRE-DESIGNED ADU MODEL

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Blueprint floor plan, exterior house elevation, and 3D interior view of a proposed two-bedroom, two-bath home, totaling 749 square feet.

1 BED / 1 BATH, 635 SQ. FT.
PRE-DESIGNED ADU MODEL

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Architectural drawings and renderings of a proposed 2-bedroom, 2-bathroom house, including front elevation views, a floor plan layout with rooms labeled, and exterior design illustrations.

2 BED / 1 BATH, 749 SQ. FT.
PRE-DESIGNED ADU MODEL

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“We hired American Helical LLC for a garage conversion, and we couldn’t be happier with the results! They transformed our unused space into a beautiful, fully functional living area. If you're looking for a reliable contractor who truly cares about their clients, look no further!”

— Jessica M. Hilmar CA