
Cut Retrofit Time From Months to Minutes
Calculating the building's renovation at urban scale
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EU Innovation Prize Winner
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40M+ Buildings assessed

Quickly assess energy performance of entire cities and evaluate investment needs
Building search by address
View existing or simulated energy performance certificates
Link to the complete building information sheet available and different scenarios of renovations
Prioritize by ROI, CO2 impact, and social need
Export programs ready for dissemination to the citizens and funding applications
How It Works
Our AI simplifies renovation planning into a 3-step process. Analyze 50+ building parameters, Optimize scenarios, and Deliver precise retrofit plans and cost estimates.
Analyze
We ingest public and private data to build a physics-based baseline: geometry, envelope, systems, usage.
Optimize
Explore dozens of upgrade paths: insulation, windows, HVAC, heat pumps, PV, controls—with cost/saving trade-offs.
Deliver
Get a decision-ready plan: measures, bill of quantities, expected EPC class, CO2 reduction, capex/opex, payback.
5000x
Faster processing
30%
lower costs
City-wide
screening in days
Why Choose Us
Turn months of retrofit analysis into minutes, for single buildings or entire cities.

Fast Solutions
Experience fast machine learning models that accelerate the retrofit process by 5,000 times compared to traditional thermal engineering software. Clear measures, costs, savings, and compliance mapping—no black box

Cost-Efficient
Achieve up to 30% cost savings with our optimized retrofit planning strategies that prioritize efficiency and affordability for every project. Run hundreds of buildings in parallel and keep your team focused on high-value design.

City Transformation
Transform entire cityscapes with our city-wide retrofit analysis. We have already assessed over 40 million buildings for sustainable urban development. Transparent assumptions, auditable inputs, exportable reports for procurement and grants.
Frequently asked questions
AI renov' is an innovation developed by LightMirror - UAB Saulės šildymo architektūra, which was funded by the European Union under GA No.101070617. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.