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
Book "Louis Le Roy, ecotect" by Rob Hendriks and Piet Volaard presented in Heerenveen
Book "Louis Le Roy, ecotect" by Rob Hendriks and Piet Volaard presented in Heerenveen

Book "Louis Le Roy, ecotect" presented

On Saturday, October 31, 2026, the book "Louis Le Roy, ectotect" by Rob Hendriks and Piet Vollaard will be presented during the TIJD symposium at De Koningshof in Heerenveen.

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The greened garden with the Le Roy garden in the background (photo: Peter Wouda)
The greened garden with the Le Roy garden in the background (photo: Peter Wouda)

Green Trinitas church nominated for the Sustainable 30

De Groene Kerk Trinitas, the neighbors of the Le Roy Garden, have been nominated for the Sustainable 30.

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Participants in the philosophical walk on the Agora of the Le Roy Garden. (photo: Peter Wouda)
Participants in the philosophical walk on the Agora of the Le Roy Garden. (photo: Peter Wouda)

Start philosophical walk at Agora Le Roy garden

The small open-air theater in the Le Roy Garden regularly serves as a Greek Agora, a square or gathering place where people debate.

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KEI College students on an expedition in the Le Roy garden (photo: Peter Wouda)
KEI College students on an expedition in the Le Roy garden (photo: Peter Wouda)

KEI College students on an expedition in the Le Roy garden

Students from the KEI College, Building, Living and Interior (BWI) course in Heerenveen, were on an expedition in the Le Roy Garden this week.

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An impression of a number of pages from the book "Louis Le Roy, ecotect" by Piet Vollaard and Rob Hendriks
An impression of a number of pages from the book "Louis Le Roy, ecotect" by Piet Vollaard and Rob Hendriks

Presentation of the book "Louis Le Roy, ecotect" by Piet Vollaard and Rob Hendriks

At the TIJD symposium on Saturday afternoon, October 31, 2026, the book "Louis Le Roy, ecotect" by Piet Vollaard and Rob Hendriks will be presented.

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The route led through the Le Roy Garden in Heerenveen (photo: Peter Wouda)
The route led through the Le Roy Garden in Heerenveen (photo: Peter Wouda)

Hikers from all over the country walk through Le Roy Garden

About 45 interested people from all over the country took part in the fourth edition of the Le Roy walk from Heerenveen to Mildam and back to Heerenveen on Sunday, June 14, 2026.

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Students from Aeres VMBO Heerenveen are stacking a new border using the stones from an uneven walking path in the Le Roy garden.
Students from Aeres VMBO Heerenveen are stacking a new border using the stones from an uneven walking path in the Le Roy garden.

Practical lesson for Aeres VMBO Heerenveen students in the Le Roy garden

Master builders in training: students from Aeres VMBO Heerenveen had another practical lesson this week in the Le Roy Garden and the garden of the Heerenveen Apostolic Society, our neighbors with whom we collaborate frequently.

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Master builder Peter Wouda talks about the ecocathedral in Heerenveen in Leen een Fries' podcast (Photo: Maarten Dikken)
Master builder Peter Wouda talks about the ecocathedral in Heerenveen in Leen een Fries' podcast (Photo: Maarten Dikken)

Podcast Borrow a Frisian with architect Le Roy Garden

Leen een Fries, a knowledge platform where Frisian residents can tell their stories on a wide range of topics, has recorded a podcast with Peter Wouda, master builder of the Le Roy Garden, the Heerenveen ecocathedral.

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From bicycle shed to vegetable garden with dry stone wall and solar panels
From bicycle shed to vegetable garden with dry stone wall and solar panels

From bicycle shed to vegetable garden with dry stone wall and solar panels

At the De Compagnie vocational school in Heerenveen, a former bicycle shed has been transformed by students into a vegetable garden with a dry stone wall and solar panels.

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Small patches of grass were a thorn in Louis's side.
Small patches of grass were a thorn in Louis's side.

Small lawns: a thorn in the side of Louis Le Roy!

They can be found everywhere in the Netherlands: small patches of grass with a solitary tree here and there. A thorn in the side of Louis Le Roy!

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Exhibition as a process: visitors stack 400,000 blocks and participate in the creation process of this exhibition (photo: Hamburger Bahnhof - Nationalgalerie der Gegenwart)
Exhibition as a process: visitors stack 400,000 blocks and participate in the creation process of this exhibition (photo: Hamburger Bahnhof - Nationalgalerie der Gegenwart)

Now on display in Hamburg: "We make years out of minutes" by Lina Lapelytė

In the impressive Hamburger Bahnhof – Nationalgalerie der Gegenwart, an exhibition is emerging (!) from 30 April 2026 to 10 January 2027 that you do not just view, but experience.

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The chiseled tile with a text by Le Roy in which he explains what an ecocathedral is.
The chiseled tile with a text by Le Roy in which he explains what an ecocathedral is.

"What is an ecocathedral?" chiseled in stone

For an exhibition in Heerenveen in 1996, Le Roy explained on a number of A4 sheets what an ecocathedral is, what you can use to build one, and why we need to build one.

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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)