Learn the tips and tricks of valuing personal property and why assessors grossly overvalue BPP due to inaccurate value tables. Free initial consultation.Which forms will I need to file? For Harris County Appraisal District, most businesses will need to file the general rendition form, 22.15. The Real Property Department records documents pertaining to real property or real estate in Harris County. You can also file the protest online, using the iFile number printed on the Notice Of Appraised Value. Complete this form if you own property used for commercial purposes that is not included in the assessed value of your business' real property. 03, the personal property used in the operation of their motel remained the same, with no significant additions or deletions. K. "Real Property" means land or an improvement, or both, or other property classified as such under state law. Yes, you can find out how much your home is worth in today's market.