About Us
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  • Structural engineering and calculations
  • Architectural design
  • Construction management
  • General contracting
  • Planning expedition


  • New construction
  • Additions (horizontal & vertical)
  • Remodeling
  • Structural upgrades
  • Energy Performance Upgrades


We are passionate about making buildings that sing – buildings that bring lasting joy and beauty into our clients’ lives.  We optimize our clients’ fundamental human needs for shelter and joy through the practice of good technical design. Our focus is on structural intelligence and low-carbon footprint.  Our dream is for you to have an enduring, timeless final product that enhances the natural beauty of your local environment.

Crafted Earth is a multi-faceted design firm, combining architecture, structural engineering, and construction. We endeavor to design and produce high performance spaces and structures brimming with natural beauty. We are committed to providing our clients with exceptional, data-driven service throughout all phases of design and construction. We are able to offer a complete array of design services, including: Whole building design, remodel assistance, detailed structural and energy analyses, design drawings and calculations, permit assistance and planning, construction administration, bidding and procurement, and general contracting.


Eric Spletzer, PE

Eric is a licensed engineer and general contractor who first found his love of buildings as a carpenter’s apprentice 25 years ago.  He has masters degrees in both structural engineering and architecture from UC Berkeley, and an undergraduate degree in philosophy and computer science from Dartmouth College.  You can usually find him on site, behind multiple monitors, or playing with his two amazing daughters.

Jose Zacarias

Jose is the head of our construction crew who has over 13 years of carpentry experience in Marin county.