Joining Two Properties

[creature0077]

I've been searching the web for answers to this question but have had no luck. Probably because I don't know the technical details of what it is referred to.

I own my home in Baytown, Tx on a lot for 4 years now and I also own the lot right next door (nothing on the property) to me for about 3 years. I was wondering, would I be able to join these two properties together? Would it save me from the raising tax rate on the empty lot?

[jwmayfield]

First fence both properties in as one lot then go to tax office and ask. That they be registered as a single property.