Below is Seminole County's Building Permit Website where you can find their contact info.
Aside being a Realtor I have a Civil Engineering background and have developed residential and commercial properties before. My suggestion would be to take a trip to their office and have a face to face meeting. There, you can gather the info you need much easier and they are so incredibly helpful.
Hope this helps.
Top Producer RealtorÂ® with over 26 years of experience
Awarded as Exit's TOP Buyer side Transactions for the State of Florida
Exit Realty Access, LLC
Direct: (407) 744-2533
Fax: (407) 444-9925
Search Entire MLS At: http://abidhendi.orlandopropertiesonline.com/search
Kissimmee Office: 391 N. Main St., Kissimmee, FL 34741
Altamonte Springs Office: 660 Palm Springs Dr., Suite D, Altamonte Springs, FL 32701