Nathan Biller

Nathan Biller is a real estate professional and developer dedicated to creating sustainable, “missing middle” housing in Grand Rapids. With experience spanning zoning reform advocacy, serving on the Mayor’s ADU Task Force, and raising capital for real estate and assisted living projects, Nathan combines his expertise in financial analysis, development, and education. Passionate about gentle density, he also finds joy in music, photography, and exploring the world with a forward-thinking approach to life and housing solutions.

GR ADU Zoning Update

On Tuesday, June 16, 2026, the Grand Rapids City Commission adopted an updated ADU ordinance at their “Night Out at the Museum” meeting. The headline change: ADUs can now be up to 1,000 square feet, as long as the primary structure is at least 1,000 square feet — an increase of at least 20% over the previous max, which was usually funtionally 832 square feet (though that number was variable and confusing).

GR Zoning Rules for ADUs

In April 2024, the GR City Commission adopted a few zoning text amendments! This was a huge change that relaxed a few of the previously stringent requirements that made it difficult and costly to build ADUs. You can read the exact language on page 5 of this attachment. As of June 20, 2026, everything I describe below is accurate; however, zoning does change, so if you want to view the living copy, it’s available online in Section 5.9.03.

Building an ADU for an Aging Parent

Step 1: Understand the Benefits of an ADU for Aging Parents ADUs offer numerous advantages for families, particularly for older parents:

The Ultimate Guide to Designing Your Ideal ADU

Clarify Your Goals Start by defining the purpose of your ADU. Is it for a relative who needs independence? A guesthouse for visitors? A rental unit? Understanding your goals will shape every design decision, from layout to finishes.