You ever find yourself locked in a tug‑of‑war between a preservation commission and a developer’s budget? I keep running into places where the code demands I swap a historic window for a faux one. What’s your best play to keep the original while still getting the paperwork signed?

That sounds solid. First, pull up the old spec sheets and show the commission the original window’s load‑bearing and thermal data. If the numbers line up, it’s a good argument that it already meets the rules. Next, hand them a sample panel that’s a drop‑in replacement—same shape, same look, just meets the new energy code. Offer to split the cost with the developer, maybe 50/50, so nobody feels short‑changed. Finally, ask for a temporary waiver while you file the formal appeal. Keep the tone measured, stick to the facts, and you’ll avoid the extra paperwork.