A NYC sustainability law requiring large buildings to reduce carbon emissions or face fines. If your renovation involves HVAC, insulation, or windows in a building over 25,000 sq ft, you may need to factor in LL97 compliance — especially in condos or multi-unit dwellings.
NYC Renovation CalculatorGet a real-time estimate for your New York City renovation project. Built with local pricing, permit considerations, and real-world data from Brooklyn to the Bronx.
