The world’s largest database of architecture ideas // Buildner

Get inspired!

16,544 architecture projects

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

Popular:

traditional community reinforced retreat italy tourism local

Search results for: Keyhole

Geothermal-Inspired Visitor Center Featuring Round Design and Glass Facades Built Among Volcanic Landscapes

Geothermal-Inspired Visitor Center Featuring Round Design and Glass Facades Built Among Volcanic Landscapes

Clemens Dreher, Markus Gröteke

Nestled within Iceland's volcanic landscape, a round visitor center employs geothermal systems and expansive glass facades to create an inviting space that fosters connection with nature while educating guests about the unique geology of Dimmuborgir.

iceland visitor center geology sustainability public space education nature observation community cultural

Charred Wood Sanctuary Designed for Introspection in Natural Surroundings

Charred Wood Sanctuary Designed for Introspection in Natural Surroundings

Lisa Collomb

With its charred wood exterior and thoughtful integration into the forest landscape, this sanctuary offers a serene space for meditation and reflection.

forest temple retreat meditation ozolini woodland sustainability introspection nature connection

Enter the next competition edition

The Architect’s
Stair

The Architect’s Stair

Take a step and make a statement!

Take a step and make a statement! Edition #2 ideas COMPETITION

Find out more Download brief

Featured architecture competitions

MICROHOME

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION

Prize 100,000 € + Potential realisation

Eligibility Open to all

Final registration deadline 17 July 2025

Find out more Download brief

Mujassam Watan
Urban Sculpture Challenge

Mujassam Watan Urban Sculpture Challenge

Design iconic urban sculptures for the prestigious Mujassam Watan competition and compete for 50,000 €

50,000 € PRIZE project COMPETITION

Prize 50,000 € + Potential realisation

Eligibility Open to all

Final registration deadline 24 July 2025

Find out more Download brief

Buildner's Unbuilt Award 2025

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

100,000€ Prize / 2025 ideas COMPETITION

Prize 100,000 €

Eligibility Open to all

Final registration deadline 11 September 2025

Find out more Download brief

The Architect’s
Stair

Find out more Download brief

The Architect’s Stair

Take a step and make a statement!

Take a step and make a statement! Edition #2 ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 26 June 2025

Hospice -
Home for the
Terminally ill

Find out more Download brief

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 9 July 2025

Concrete
Pavilion

Find out more Download brief

Concrete Pavilion

Design a concrete pavilion

Edition #3 ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 9 July 2025

Museum of
Emotions

Find out more Download brief

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 10 July 2025

Denver Affordable Housing Challenge

Find out more Download brief

Denver Affordable Housing Challenge

Design affordable housing for Denver

Affordable Housing Series 19th Edition ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 17 July 2025

The Architect's
Chair

Find out more Download brief

The Architect's Chair

Take a seat and make a statement!

Take a seat and make a statement! Edition #4 ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 17 July 2025

Re:Form -
New Life
for Old Spaces

Find out more Download brief

Re:Form - New Life for Old Spaces

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

ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 24 July 2025

Howard
Waterfall Retreat

Find out more Download brief

Howard Waterfall Retreat

Design a house near an iconic waterfall in the USA

project COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 24 July 2025

Kinderspace

Find out more Download brief

Kinderspace

Design a kindergarten of tomorrow

Architecture for Children’s Development #3 ideas COMPETITION

Prize Monetary award

Eligibility Open to all

Final registration deadline 24 July 2025

The Last
Nuclear Bomb Memorial

Find out more Download brief

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 10 September 2025

Load more competitions

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 16544 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