This project really required a team to mastermind which way we were going.... from restoring it to the 20's vibe, making it contemporary loft feel, or basic rehab.After reviewing the project we found that it would be partial restore (like removing drywall from the beautiful bricks inside the apartments), to acid cleaning the HUGH building, and adding a garden park feel in the center of the closed courtyard.The condo conversion (from Apartment status) was our focus for getting upside.What was the outcome?

If however you just acquired a new zoning on your property or the area has just received a CID designation, or the like then it would be best to work with a broker that has moved similar properties in you area.

I don't see how sticking tint film onto the outside surface of the glass would make it porous unless you're using hydrofluoric acid in the adhesive.

Muratic acid.

This procedure that our PermaBrite provider uses actually acid "etches" the surface before applying the porcelein impregnated coating.

The real way to do it is with an acid wash and stain.

I don't think it was an acid, but when a drop fell on my skin it started to burn a little bit.

Muratic acid is a stronger alternative to vinegar, if everything else drains well, and the toilet drains well when you dump in a bucket.

Sorry for diverting, but has anyone tried a technique of using a stud finder to drill between wall studs, and then squirting (if you can squirt a powder) Boric acid into the holes?

Maybe you could do acid wash to brighten the brick a little bit.