Get inspired!

17,725 architecture projects

Learn from past Buildner architecture competition participants through our extensive project library, curated over more than 15 years!

Recycled Concrete and Bronze Trims Within a Reflective Columbarium Design

Authors:
Alex Sadeghi, Camy Chai Jia Min
Recycled Concrete and Bronze Trims Within a Reflective Columbarium Design
Explore the full project presentation!
Subscribers only
The use of recycled concrete and bronze trims creates a reflective columbarium that intertwines themes of memory and nature, offering a space for collective remembrance in the Forest Cemetery of Riga.
5 key facts about this project
01
Recycled concrete used for structural elements emphasizes sustainability.
02
Bronze trims outline niches, enhancing the minimal aesthetic.
03
Large openings create a strong connection with the sky and light.
04
Embedded niches symbolize the link between the living and the deceased.
05
Shared recesses allow personal expressions of remembrance with flowers and candles.

Sidrabina laivinā, known as The Silver Boat, is a columbarium located in the Forest Cemetery of Riga, Latvia. It is designed to facilitate collective remembrance, exploring the relationship between memory and presence. The design concept focuses on blending permanence with transience. The building draws inspiration from the symbolist paintings of Rūdolfs Pērle, resulting in a sculptural form that interacts meaningfully with the surrounding landscape. The architecture engages visitors emotionally, providing a space for reflection and contemplation.

Architectural Form

The building features large openings that allow natural light to fill the internal spaces. This design choice connects visitors visually with the sky. The flow of light creates an ever-changing atmosphere inside, influenced by the time of day. Significant walls hold embedded niches for the deceased, reminding visitors of the bond between the living and those who have passed. Without physical doors, the entryway encourages an easy movement between the interior and exterior, reinforcing the connection to the surrounding environment.

Spatial Organization

The layout incorporates a linear path that guides visitors from existing cemetery pathways to the central contemplation area. This organization aims to enhance the experience by blending the built environment with nature. As visitors progress, they transition into a spacious contemplation area. The ceiling height rises, emphasizing the importance of this space. The sharp edges of the roof break from typical forms found in memorial architecture, inviting interaction with the structure.

Materiality and Details

Concrete with Recycled Concrete Aggregate serves as the main material, promoting sustainability while providing a solid presence that resonates with themes of remembrance. Bronze-colored stainless steel trims outline the niches and the names of the interred, contributing a minimal aspect that complements the overall design.

Shared recesses are placed at the base of the niches, allowing visitors to place candles and flowers. This detail encourages communal care and reflects Latvian traditions, enhancing the personal connection to the space.

Sidrabina laivinā offers a thoughtful approach to collective remembrance, characterized by its engaging form and organized spaces. The design enables natural light to guide visitors, creating an environment that honors both those who have passed and the living. Features like the arranged niches and the relationship to nature strengthen the impact of the experience, making it a meaningful place for reflection.

Noticed a mistake?
Highlight the text and click on
Noticed a mistake

Enter an open architecture
competition now

The Home of 
Shadows
The Home of Shadows
The light studies. Edition #4
The Next House: USA
The Next House: USA
20,000 USD Prize
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #5
Kinderspace
Kinderspace
Architecture for Children’s Development #3
The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
Buildner's Unbuilt Award 2026
Buildner's Unbuilt Award 2026
100,000€ Prize / 2026

The Next House: USA — A Global Call to Reimagine the American Suburb

`
Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

Open architecture competitions

  • Closest deadline first
  • Project competitions first
    Selected winning projects have the potential to be constructed
  • Ideas competitions
    Experimental competitions with the focus on pushing the boundaries of creativity
new
The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025
new
Iceland 
Slow Sauna

Design slow sauna in Iceland

project COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 26 November 2025
Concrete 
Pavilion

Design a concrete pavilion

Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 27 November 2025
new
Pavilion Atlas 2026

Design a story of your country

ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 21 January 2026

Recurring architecture competitions

new
The Home of 
Shadows

Design a home with no artificial lighting

The light studies. Edition #4 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 5 November 2025
The Last 
Nuclear Bomb Memorial

Design a memorial that speaks to the cause of ending all nuclear weapons programs

Edition #6 ideas COMPETITION SILENT CONTEST For this competition, NO DESCRIPTION TEXT is allowed. The architecture ideas must be communicated strictly with visuals.
Prize Monetary award
Eligibility Open to all
Final registration deadline 13 November 2025
new
The Architect's 
Chair

Take a seat and make a statement!

Take a seat and make a statement! Edition #5 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 20 November 2025
Hospice - 
Home for the 
Terminally ill

Design a safe and supportive space to those struggling with a terminal illness

Edition #5 ideas COMPETITION
Prize 10,000 €
Eligibility Open to all
Final registration deadline 26 November 2025
Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 26 November 2025
Museum of 
Emotions

Use architecture to create different emotional states

Edition #7 ideas COMPETITION SILENT CONTEST For this competition, NO DESCRIPTION TEXT is allowed. The architecture ideas must be communicated strictly with visuals.
Prize Monetary award
Eligibility Open to all
Final registration deadline 27 November 2025
Re:Form - 
New Life 
for Old Spaces

Choose a site—used, abandoned, or forgotten—anywhere in the world, and give it a new purpose

Edition #2 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 3 December 2025
The Architect’s 
Stair

Take a step and make a statement!

Take a step and make a statement! Edition #3 ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Advance registration deadline 15 January 2026
new
Buildner's Unbuilt Award 2026

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2026 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Early bird registration deadline 26 February 2026

Media, partners and clients

To view this project in detail,
please log in with your
Architects’ Network Plus account.
Subscription instantly unlocks all the architecture projects plus other member-only benefits:
  • Access the 17,725 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in

This website uses cookies to improve user experience and gather usage statistics.

More information is available in our Privacy & Cookie policy