KOSS design+build


Our architectural philosophy is simple. Modern design for today, tomorrow, for beauty and fun. Let the planet and the people in it inspire you.


A balance between time, money and craftsmanship, controlled through organization, teamwork and experience. Open book accounting, we earn your trust.

Design Build

We design it. We build it.
A single point of accountability created through a union of architecture, interiors and construction. All of these pieces play their part in creating homes that are celebrated by those who live in them.

KOSS design+build is an architect lead building team dedicated to timeless design and sustainable building. Founder, Erik Koss, is a licensed architect, contractor and LEED accredited professional that has numerous years of experience in the planning, design and construction of custom residential and specialty commercial buildings. KDB`s success is based on client interaction and satisfaction along with a commitment to modern design, quality construction and sustainable building.


Our work is founded on a commitment to our client’s specific needs and desires which is expressed through thoughtful design and construction methods.

What we are doing

how we work


What our clients say

Some Fun Facts

Designed gallons of annual water savings
LED lights installed
Rattlesnakes relocated
Finger pointing between Architect and Builder

Let's talk


KOSS design+build

  • PHOENIX, AZ 85028
  • 602.374.5757