🎓 Prepared by students from Boğaziçi University

What Is Sustainable Architecture?

Sustainable architecture designs buildings to minimize environmental impact across their entire life cycle — from material extraction to demolition. It combines passive design strategies, efficient systems, and responsible material choices to reduce energy use, waste, and carbon emissions.

Short answer

Sustainable architecture is the practice of designing buildings that reduce environmental impact through energy efficiency, passive design, sustainable materials, and resource-conscious site strategies.

Building Life Cycle Assessment
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  1. 1.Material ExtractionRaw materials are sourced, ideally renewable or recycled.
  2. 2.ManufacturingMaterials are processed into building products, consuming embodied energy.
  3. 3.ConstructionThe building is assembled on site, generating construction waste.
  4. 4.Use & OperationThe building consumes energy and water over decades of occupancy.
  5. 5.Renovation/ReuseAdaptive reuse extends the building's life and avoids demolition.
  6. 6.Demolition & RecyclingEnd-of-life materials are recycled or landfilled, closing or breaking the loop.
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Step-by-step worked examples

An architect designs a house in a hot climate. Which passive strategies reduce cooling energy?

Orient the building to minimize west-facing glass exposed to afternoon sun
Add deep roof overhangs to shade windows in summer
Use thermal mass materials (concrete, masonry) to buffer temperature swings
Design cross-ventilation paths to allow natural airflow

A renovation project must reduce embodied carbon. What material choices help?

Reuse the existing structural frame instead of demolishing it
Specify low-carbon concrete mixes or mass timber where new structure is needed
Source reclaimed wood and recycled steel for finishes
Avoid materials with high manufacturing energy, like virgin aluminum, where alternatives exist

A school wants to cut its water use. What sustainable design features apply?

Install low-flow fixtures and dual-flush toilets
Design a rainwater harvesting system for irrigation
Use permeable paving to reduce stormwater runoff
Specify drought-tolerant, native landscaping
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Flashcards

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Quick quiz

Q1.What is the main goal of sustainable architecture?

Correct answer: B. Sustainable architecture focuses on reducing environmental impact from material extraction through demolition.

Q2.What is passive design?

Correct answer: B. Passive design leverages the building's form and materials, not mechanical equipment, to manage comfort.

Q3.What does 'embodied carbon' refer to?

Correct answer: B. Embodied carbon is locked into materials before the building is even occupied.

Q4.What is adaptive reuse?

Correct answer: B. Adaptive reuse extends a building's life, avoiding the environmental cost of demolition and new construction.
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Common mistakes

Assuming sustainable architecture is only about solar panels.Correct: Sustainability includes passive design, materials, water use, and site strategy — not just renewable energy tech.

Ignoring embodied carbon and focusing only on operational energy.Correct: Count the carbon in materials and construction, not just the energy used once the building is occupied.

Demolishing existing buildings by default.Correct: Consider adaptive reuse first — reusing structure avoids major embodied carbon costs.

Applying the same passive strategies regardless of climate.Correct: Tailor orientation, shading, and materials to the specific climate — a hot-climate strategy can backfire in a cold one.

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FAQ

What is sustainable architecture?

It's the design of buildings that reduce environmental impact through energy efficiency, passive design, and responsible material choices.

What are the core sustainable architecture principles?

Passive design, energy efficiency, sustainable materials, water conservation, and site-responsive planning are the core principles.

What are examples of sustainable architecture strategies?

Solar orientation, natural ventilation, rainwater harvesting, and reused building materials are common examples.

How is sustainable architecture measured or calculated?

Tools like life cycle assessment (LCA) and energy modeling estimate a building's embodied and operational carbon over its lifespan.

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