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🔧 Athena Impact Estimator for Buildings

Athena Impact Estimator for Buildings

Free software for whole-building life cycle assessment.

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Overview

The Athena Impact Estimator for Buildings is a long-standing, free software tool for life cycle assessment (LCA) in construction. It allows users to model whole buildings or assemblies and evaluate their environmental impact from cradle-to-grave. The software includes a comprehensive database of materials and energy data relevant to North America and helps designers make choices that reduce a building's environmental footprint.

✨ Key Features

  • Whole-building LCA (cradle-to-grave)
  • Free to download and use
  • Detailed environmental impact results (GWP, acidification, etc.)
  • Includes built-in assemblies for quick modeling
  • Allows custom input of material quantities
  • Focus on structural and enclosure systems

🎯 Key Differentiators

  • Completely free for detailed whole-building LCA
  • Long-standing reputation and robust methodology
  • Works offline as a desktop application

Unique Value: Provides free, powerful, and transparent whole-building life cycle assessment to help reduce the environmental footprint of construction.

🎯 Use Cases (3)

Architects and engineers comparing the environmental footprint of different structural systems Sustainability consultants conducting detailed LCAs for green building projects Academic research and teaching on life cycle assessment

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Users needing a collaborative, cloud-based platform
  • Contractors focused on procurement of low-carbon materials
  • Quick, early-stage design feedback

🏆 Alternatives

One Click LCA Tally EC3

Unlike paid tools, it's completely free. Compared to procurement-focused tools like EC3, it offers a full cradle-to-grave life cycle perspective.

💻 Platforms

Desktop (Windows)

✅ Offline Mode Available

🔌 Integrations

CAD/BIM software (via manual data input)

🛟 Support Options

  • ✓ Email Support

🔒 Compliance & Security

✓ Compliant with ISO 14040/44 standards

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: The software is completely free.

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