Plandroid
Plandroid is a simple and efficient graphical software tool for ducted air conditioning / HVAC system design and quoting.
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VoxCity
VoxCity is a Python package for voxel-based 3D city modeling and environmental urban simulations.
TEASER (Tool for Energy Analysis and Simulation for Efficient Retrofit):
TEASER quickly generates archetype buildings and exports Modelica-ready simulation models for urban energy analysis.
City Energy Analyst (CEA)
Urban Building Energy Modeling for Urban Decarbonisation Planning & Design with the Open-Source CEA-4
UrbanAna
Providing real-time insights into design options, UrbanAna is the best way to streamline urban planning and architectural design
Streetmix
Open source and free, web-based street design platform, specifically cross-sections of streets for multiple uses.
Radiance.
Radiance simulates solar panel placement, shading, and energy potential for buildings.