What was permitted
For those on the Upper East Side, this permit provides a look at the cost of installing mechanical systems in residential buildings. Specifically, this project involved thru-wall units, a common upgrade for climate control.
The permit for this work was issued on April 1, 2026, with an estimated cost of $9,000. HAMILTON AIR COMPANY, INC (GC) handled the installation, ensuring no changes to the building's use, occupancy, or egress.
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