Where I'm at if you change the size of the window by 5% or more you have to have engineered drawings showing the changes.  

., the 2006 or 2009 IECC — International Energy Conservation Code).Cost Considerations for a 90-unit or 112-unit Project:The actual cost of qualifying for the 45L tax credit depends on various factors, including:Energy Efficiency Compliance: The primary cost will come from ensuring that each unit meets the required energy efficiency standards, which typically involve energy modeling, certification from third-party energy raters, and potentially upgrading insulation, HVAC systems, windows, and other components of the building to meet the necessary performance levels.Energy Modeling: Typically, you'll need to pay for an energy consultant or engineer to model the building's energy performance and ensure it qualifies for the credit.

I am local to Los Angeles - based in Orange County.A bit about me: I’m a civil engineer by profession with experience in local government.

Not a registered "architect" or "engineer," but, have been a business owner since 2007.

I've talked to a few plumbers and even a plumbing engineer about it and they all are a little stumped.That is an excellent suggestion about something to dissolve 1-2x a year!!

Newsom signed that order post-LA fires making it illegal to increase rent beyond 10% in those areas impacted by the fires (one source: https://www.washingtonpost.com/business/2025/01/25/la-county... )If I understand you correctly, you're saying that PriceLabs is behind the increase in rates for your properties, taking them to either 10% or beyond of an increase which I'm sure is something someone on their board or engineers must be aware of- as an issue.

Otherwise reducing the premium is not simple but some engineering firms specialize in flood zone updating.  

My background other than Real Estate is in Engineering, specifically Manufacturing Engineering. 

Since you're familar with commerical development, most enginering firms, and attorneys work on both residential and commerical. 

You're probably going to need an architect/engineer to put together a plan to submit to the city/county so keep that cost in mind as well.