Logo Le Roy tuin, de ecokathedraal van Heerenveen

Ecocathedralen: waar plant, dier en mens samenwerken...
... en waar ruimte de tijd krijgt, en tijd de ruimte

Visit by TU Delft Master's students

The students at the site that has also been part of the Le Roy Garden since 2024.
The students at the site that has also been part of the Le Roy Garden since 2024.

On Monday, February 23, 2026, Naan, Joppe, and Nina, who are pursuing a Master's degree in Architecture at TU Delft, visited the Le Roy Garden in Heerenveen.

Louis Le Roy's ecocathedrals are a source of inspiration for the subject of their master's, namely Material Yards (also known as Material Gardens). These are places temporarily used to store used building materials before they are permanently processed elsewhere.

An ecocathedral can be seen as a kind of material garden, although there is no question of temporality: the stones are processed on site and remain there forever.

After visiting the Le Roy Garden, the students went to the ecocathedral in Mildam before traveling back to Delft by train.

Master's student TU Delft visiting Le Roy Garden Many photos were taken during the visit.

master students TU Delft material yards le roy tuin heerenveen Naan, Joppe, and Nina from TU Delft at the Le Roy Garden in Heerenveen (photo: Peter Wouda)

Want to help out?

Would you like to work as a volunteer on the Heerenveen ecocathedral? You can!
Get in touch , and we'll see what you like and what you can do.
Or come by sometime on a Wednesday morning. We are often working there then.

Agenda

31 Oct 02026;
13:00 - 16:30
TIJD-symposium 02026

The stage is yours!

Located in the Le Roy Garden is a small, atmospheric open-air theatre with a capacity of approximately 80 visitors. It is ideal for staging small performances of singing, recitation, music, theatre... Email or call us and inquire about the possibilities.

thumb open-air theater le roy garden

Guided tour or lecture on ecocathedrals?

Would you like a guided tour of the Le Roy Garden, or a lecture on ecocathedrals? Please contact us. You can do so by email or by phone at 06-24573020 .

Donate stones?

Do you have any stones left over and would you like to donate them to the Le Roy garden? Please contact us first, so you can immediately find out whether (and if so, where) you can bring the stones. Bringing (or collecting) material without prior notice is therefore not permitted.

tiles NK tile removing in ecocathedral Heerenveen

 

See also:

Other long-term art projects

Various artists have been inspired in one way or another by the long term, also known as cathedral thinking. A number of interesting examples:

  1. The Letters of Utrecht (02000 - as long as there are Saturdays): a poem that is written letter by letter every Saturday in the city center of Utrecht using stones.
  2. The Time Pyramid of Manfred Laber in Wemdinge, Germany
  3. The Future Library (02014 - 02114) of Katie Paterson in Oslo, Denmark.
  4. The Longplayer at Trinity Buoy Wharf in London, a musical piece that lasts 100 years and has been playing since January 1, 2000.
  5. The Tropfenstein machine (01996–02496) with which a stalactite is made in a museum in Hamburg.

" For a proper understanding of what is written, it must always be borne in mind that when nature is mentioned, natural processes are *always* meant, but never nature in its temporary form ." Louis G. Le Roy ( 1924 - 2012 )

" When we build, let us remember that we are building for eternity. Let it not be for present pleasure, nor for present use only; let it be such a work that our descendants will be grateful to us for it ." John Ruskin (1819–1900)