The Grand Challengers Podcast Episode #65

The father of the green building says ‘it’s not enough’ – from LEED to regeneration and from human to humane

Guest: David Gottfried

June 23rd, 2026

Overview

What if the system you spent four decades building turned out to not be enough? That is the question David Gottfried sits with in this episode, and he is unusually qualified to ask it.

David is the father of the global green building movement. He founded the U.S. Green Building Council and the World Green Building Council, and helped create LEED, the rating system now used across more than 180 countries and tied to a trillion-dollar green economy. And yet, as an engineer who hates waste, he is the first to point out that the curve has not bent far enough. Carbon keeps climbing. We are, in his words, turning a giant ship towards the iceberg and congratulating ourselves for putting solar on the deck.

The conversation opens with a plain-English 101 on what actually makes a building green, from orientation and glazing to greywater, healthy materials and the LEED point system. From there, David traces how a white paper became a global standard, and why he now believes the real work is a shift from sustainability to regeneration, and from human to humane. He introduces HOPE (Health On Planet Earth) and makes the case that we have been keeping score on the wrong board. It connects naturally with our conversation in Episode 42 with Mashael Yazdanie on planning for sufficiency rather than endless growth.

It is also a personal story. A Stanford engineer who read Siddhartha every birthday and came to see himself as the ferryman who helps people across the river. A developer who lost a building in the early-90s crash and went looking for purpose. A man who took up kung fu in his late fifties, fly fishes in creeks, and turned 2,400 pages of dog-walk voice notes into a book using AI as a thinking partner, echoing the idea of AI as a mirror we explored in Episode 59 with Galina Yordanova.

Find David at regen360.net and look out for his new book Regen360 out in October 2026!

Episode Teaser

The father of the green building movement says greening our buildings was only step one. In this episode, David Gottfried makes the case for moving from sustainability to regeneration, and from human to humane. A conversation that runs from LEED and trillion-dollar economies to kung fu, Siddhartha and a new scoreboard called HOPE.

Biography

“…Even with this fabulous Green Building marketplace […] our slope is steady! Straight up!…”

David Gottfried is widely regarded as the father of the global green building movement. A Stanford-trained engineer with a degree in Engineering and Resource Management, he began his career as a real estate developer in Washington D.C. during the 1980s, before a property market crash in the early 1990s prompted a change of direction. In 1992 he founded the U.S. Green Building Council (USGBC), launched in 1993, and went on to help create LEED, the rating system that became the United States’ working definition of a green building and is now used across more than 180 countries. In 1998 he founded the World Green Building Council, seeding a network of national councils that now spans more than 85 countries. He is a four-time author whose books include Greed to Green, Greening My Life and the award-winning Explosion Green.

Today David is founder and CEO of Regen360, where he is working to move the conversation from sustainability to regeneration. His forthcoming book sets out an “operating system” for a regenerative future, built around a measure he calls HOPE, or Health On Planet Earth, and the idea of shifting from human to humane. Away from his work he is a late-blooming kung fu student, a lifelong fly fisher, a painter of nature-based abstracts, and an enthusiastic user of AI as a thinking partner. His outlook is shaped by Hermann Hesse’s Siddhartha, a book he has returned to every year since university, and by his late father, whose desk paperweight reads “Do not confuse effort with results.”

David Gottfried, founder of the U.S. and World Green Building Councils, father of the green building movement, CEO of Regen360 on The Grand Challengers Podcast Episode 65

Quick Summary & Highlights

  • What green building actually means, explained simply, from building envelope and orientation to greywater, healthy materials and recycled content.
  • How the LEED rating system and the U.S. Green Building Council turned a single white paper into a global standard now used in 180+ countries.
  • Why decades of progress have not bent the carbon curve, and what David thinks we are still missing.
  • The move from sustainability to regeneration, the idea of going from “human to humane”, and a proposed new scoreboard he calls HOPE (Health On Planet Earth).
  • A candid look at using AI as a genuine thinking partner, from 2,400 pages of voice notes to a finished book.
  • The personal thread tying it together: Hermann Hesse’s Siddhartha, kung fu, fly fishing, and the lessons of a demanding father.

Resources Related to the Episode

People & organisations

Other green building rating systems mentioned

Books

Concepts & other references

Episode Chapters

(Chapters are embedded in the episode for quick access, click this to expand and view all chapters and time stamps)
  • 0:00 Intro
  • 1:59 Guest Intro, Kung Fu & Fly Fishing
  • 9:34 A 101 on Green Buildings…
  • 16:11 …and a 101 on the LEED System
  • 18:45 Why study engineering?
  • 20:40 Siddartha’s Influence on David
  • 26:43 Origins of the Green Building Movement
  • 42:06 Green Buildings aren’t enough
  • 50:57 Pushing the needle and finding the correct metrics
  • 1:01:37 A true Human-AI collaboration
  • 1:10:07 David’s Hope and Future Vision
  • 1:12:14 Q&A Start
  • 1:12:28 What does innovation mean to you?
  • 1:15:28 Key Event, Book, Person
  • 1:20:13 Time Management
  • 1:24:58 Favourite childhood memory
  • 1:27:57 Greatest Challenge to Date
  • 1:33:04 Advice for young professionals
  • 1:36:16 What would you most like to be remembered for?
  • 1:37:01 Where can people find you?
  • 1:38:42 Final Message
  • 1:39:29 Outro

Connect with David Gottfried

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Credits